operator modules for lmu5... / lmu6... operating instructions

CC1B7494en28.07.2003

Siemens Building TechnologiesHVAC Products

AGU2.350... AGU2.361... AGU2.362... AGU2.303...

AGU2.310... QAA73...(refer to Basic Documentation

CE1P2284)

Operator Modules for LMU5... / LMU6...

Operating Instructions

The AGU... and these Operating Instructions are intended for use by OEMs which integrate the operatormodules in their products.

AGU2.361...: Version 1.05AGU2.303...: Version 1.05AGU2.310...: Version 1.07

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Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products 28.07.2003

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Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products Contents 28.07.2003

Contents

1 Overview..........................................................................................................5

1.1 Features ..........................................................................................................51.2 Product range overview...................................................................................71.3 Field of use ......................................................................................................71.4 Warning notes .................................................................................................81.5 Mounting notes ................................................................................................81.6 Installation notes..............................................................................................81.7 Commissioning ................................................................................................81.8 Notes on product liability .................................................................................81.9 Service notes...................................................................................................91.10 Disposal notes .................................................................................................9

2 Mounting the housing modules......................................................................10

2.1 Mounting the time switch with AGU2.362......................................................11

3 Operation and display....................................................................................12

3.1 Operating and display elements of AGU2.361... / AGU2.362... / AGU2.303...123.2 Operating and display elements of AGU2.310... ...........................................143.2.1 Info button......................................................................................................153.2.2 Default display ...............................................................................................173.2.3 Display of status code ...................................................................................183.2.4 Display of lockout code..................................................................................193.2.5 Adjustment of heating circuit’s setpoint temperature.....................................203.2.6 Adjustment of DHW setpoint temperature «TBWSoll» ..................................203.3 Operating and display philosophy .................................................................213.3.1 AGU2.361... / AGU2.362... / AGU2.303... .....................................................213.3.2 AGU2.310......................................................................................................223.3.3 Setpoint adjustments .....................................................................................233.4 Setting the parameters ..................................................................................243.4.1 AGU2.361... / AGU2.362... / AGU2.303... .....................................................243.4.2 AGU2.310......................................................................................................253.4.3 Setting the parameters of the LMU... via the QAA73... room unit .................28

4 Startup / initialization .....................................................................................29

5 Functions .......................................................................................................30

5.1 Functions generally applicable to AGU2.303... / AGU2.361... / AGU2.362... /AGU2.310......................................................................................................30

5.1.1 Chimney sweep function ...............................................................................305.1.2 Controller stop function..................................................................................315.2 Functions of the AGU2.303... / AGU2.361... / AGU2.362..............................325.2.1 Summer / winter changeover.........................................................................325.3 Functions of the AGU2.310... ........................................................................32

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Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products Contents 28.07.2003

5.3.1 Time-of-day function ......................................................................................325.3.2 Heating circuit operating modes ....................................................................335.3.3 DHW operating mode ....................................................................................345.3.4 Functions when room unit is connected.........................................................345.3.5 Backlit display ................................................................................................34

6 Applications....................................................................................................35

6.1 AGU2.350... / AGU2.36x................................................................................356.2 AGU2.303... ...................................................................................................366.3 AGU2.310... ...................................................................................................36

7 Assignment of terminals.................................................................................37

8 Connection diagram.......................................................................................41

9 Dimensions ....................................................................................................42

10 Technical data................................................................................................46

11 Addendum 1...................................................................................................48

11.1 Info display for AGU2.303... / AGU2.361... ....................................................4811.2 Info display for AGU2.362..............................................................................4911.3 Info display for AGU2.310..............................................................................50

12 Addendum 2...................................................................................................51

13 Addendum 3...................................................................................................52

14 Glossary.........................................................................................................53

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Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products Overview 28.07.2003

1 OverviewThe AGU2.3... operator modules are designed for use with Boiler Management Units(BMUs) type LMU5... and LMU6...These versatile modules are used for the display, operation and parameterization ofspecific boiler, space heating and DHW functions.In addition, key plant data and lockout codes can be displayed.Due to their modular and flexible design, the modules can be matched to specific appli-cation needs, thus ensuring optimum operation.

1.1 Features

The listing below describes the overall functionality of the AGU2.3... modules. The con-crete scope of functions depends on the type of module and configuration.

• The dummy cover is used if the AGU2.362... operator module or QAA73... roomunit is fitted later

• Housing designed for flush panel mounting• Degree of protection: IPx4D

• For boiler operation• Housing designed for flush panel mounting• Integrated double-pole mains switch• Degree of protection: IP- x 4D• Multifunctional display of various plant, boiler, space heating and DHW data, and er-

ror code on 2 x 7-segment LCD• Selectable display with enduser and service level• Indication of flame / operating signal and fault status signal via LEDs• Lockout reset button• Button for activating the chimney sweep and controller stop function• Parameter setting code for basic settings on the service level• Integrated service interface for setting the parameters of the LMU... via the

QAA73... room unit• Prepared for communication with flue gas analyzers via infrared or LED interface

(on request)

• For space heating and DHW heating; switching program for space heating (with in-tegrated time switch)

• Housing designed for flush panel mounting• Degree of protection: IP x 4D (without time switch)• Adjustment of heating, DHW and room temperature setpoint• Button for and display of summer, winter and automatic operation• Prepared for integration of a time switch

Brief description

Dummy coverAGU2.350...

Operator module«Boiler»: AGU2.361...

Operator module«Heating circuit»:AGU2.362...

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• For boiler, space heating and DHW heating• Printed circuit board, degree of protection: IP 00• Multifunctional display of various plant, boiler, space heating and DHW data and

lockout code via 2 x 7-segment LCD• Selectable display with enduser and service level• Indication of flame / operating signal and fault status signal via LEDs• Lockout reset button• Button for activating the chimney sweep and controller stop function• Parameter setting code for basic settings on the service level• Adjustment of heating, DHW and room temperature setpoint• Button for and display of summer, winter and automatic operation

• For boiler, space heating and DHW operation• Printed circuit board, degree of protection: IP 00• Backlit LCD• Multifunctional display of various plant, boiler, space heating and DHW data, and

lockout code on 2 x 7-segment LCD• Selectable display with enduser and service level• Operating philosophy similar to that of the QAA73... room unit• Integrated clock module with 24-hour switching program for heating circuit 1 and

DHW heating with 3 phases per day• Parameter setting mode for LMU5... / LMU6...

• Housing of modern design, recyclable• Housing made of flame-retarding plastic

Operator module«LMU...»: AGU2.303...

Operator module«LMU...»: AGU2.310...

Other features

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1.2 Product range overview

Dummy cover AGU2.350A109

Operator module «Boiler» AGU2.361A109

Operator module «Heating circuit» AGU2.362A109

Operator module «Boiler and heating circuit» AGU2.303B109

Operator module «Boiler and heating circuit» with LCD / AGU2.310A109clock function

BMU premix-TOP LMU5... / LMU6...(refer to Basic Documentation P7494)

Room unit with OpenTherm interface QAA73...(refer to Basic Documentation P2284en)

Room unit for boiler control QAA53...(refer to Basic Documentation Q2282)

Cable for connecting LMU5... / LMU6... to AGU2.361... /AGU2.303... / AGU2.310... (on request) AGU2.100A109

AGU2.100A209

Cable for connecting AGU2.361... to AGU2.362... AGU2.101A109(on request)

Cable for connecting AGU2.361... to QAA73... AGU2.102A109(on request, when mounting the QAA73... in the control panel)

Cable for connecting AGU2.361... to QAA73...(on request, when using the QAA73... as a service unit) AGU2.103A109

1.3 Field of use

Operator modules for use in connection with LMU5... / LMU6...

The AGU2.3... operator modules are intended for the OEM market.

General

Target market

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1.4 Warning notes

To avoid injury to persons, damage to property or the environment, the followingwarning notes should be observed!

Do not open, interfere with or modify the modules!

• All activities (mounting, installation and service work, etc.) must be carried out byqualified staff

• Before performing any wiring changes in the connection area of the modules, com-pletely isolate the equipment from the mains supply (all-polar disconnection)

• Ensure protection against electric shock hazard by providing adequate protectionfor the connection terminals

• Check to ensure that wiring is in an orderly state• Fall or shock can adversely affect the safety functions. Such units may not be put

into operation, even if they do not exhibit any damage

1.5 Mounting notes

• Ensure that the relevant national safety regulations are complied with

Only with the AGU2.361...:• The connection terminals of mains switch must be insulated

1.6 Installation notes

• To ensure protection against electric shock hazard and electrical interference,make certain that the AC 230 V section is strictly segregated from the extra low-voltage section

• Ensure compliance with DIN EN 60 335 and DIN EN 60 730-2-5

1.7 Commissioning

• Prior to commissioning, check to ensure that wiring is in an orderly state

1.8 Notes on product liability

• The operator modules may only be used in building services plant and on applica-tions as indicated above

• When using the products, all requirements specified in «Technical data» must beobserved

• Local safety regulations for installation must be complied with

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1.9 Service notes• Each time a unit has been replaced, check to ensure that wiring is in an orderly

state

1.10 Disposal notes

The operator modules contain electrical and electronic components and may not bedisposed of together with household waste.Local and currently valid legislation must be observed!

Disposal

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Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products Mounting the housing modules 28.07.2003

2 Mounting the housing modules

Step 1 Push the 4 mounting clips in the positionindicated and insert the AGU... in thepanel cutout (without applying anyforce).

Position!

7494z14/0901

Step 2 Note:If the AGU... does not fit in the cutout,check the dimensions of the cutout andthe module housing.

7494z15/0901

Step 3 Set the 4 mounting clips to one of the 3 available positions, depending on the thick-ness of the panel (to ensure degree of protection IP x 4D).

Position 1 (max. 3 mm)

7494

z17/

0901

Position 2 (between 1...3 mm)

7494

z18/

0901

Position 3 (min. 1 mm)

7494

z19/

0901

Flush panel mounting

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Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products Mounting the housing modules 28.07.2003

The mounting dimensions of the operator modules are 92 x 92 mm. Due to the dimen-sions of the module front, the spacing is 96 mm.The mounting facility provided enables the modules to be fitted in panels having athickness of between 1 and 3 mm.

96

1...3

92+0

.8-0

92+0.8-0

2284

M01

96

2.1 Mounting the time switch with AGU2.362...

1. Preparation of the AGU2.362...:a) Open housing and remove rearb) Cut front foil along the marked corners with a knife. Remove the cut foilc) Cut along perforation on the front housingd) Cut along perforation at the rear

2. Mounting the time switch:a) Mount time switch with the help of the mounting frameb) Clip rear

3. Mount the AGU2.362... (refer to chapter «Mounting»)

Dimensions of cutout

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Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products Operation and display 28.07.2003

3 Operation and display3.1 Operating and display elements of AGU2.361...

/ AGU2.362... / AGU2.303...

AGU2.361... AGU2.362... AGU2.303...

7494z08/0801

7

10

P

8

9

11

12

13

14 15 16 17

Auto

- + - +7494z07/0801

1

2

3

4

56

7494

z10/

0202

7

6

8

9

11

12

14 15 16 17

2

3

45

Operating element Function1 Cutout for the time switch For fitting the time switch2 Indication of automatic operation Automatic operation → LED lit (green)3 Button for summer / winter / auto-

matic operationChangeover

4 Indication of summer / winter op-eration

Winter operation (*) → LED lit (green)

5 Potentiometer for boiler or roomtemperature setpoint

Adjustment

6 Potentiometer for DHW temperaturesetpoint

Adjustment

7 Lockout reset button Resetting the LMU...8 Button for display mode 12 Change of display9 Button for chimney sweep function Selection of chimney sweep / con-

troller stop function10 Double-pole mains switch Switching power supply on / off11 Infrared interface (on request) Communication with flue gas analyz-

ers, for example12 Multifunctional display 2 x 7-segment display (red)13 Service interface for QAA73... Temporary connection of QAA73... for

service purposes (information, query,parameter settings, etc.)

14 Indication of pressure P (green)15 Indication of temperature (green)16 Indication of lockout (red)17 Indication of flame (green)

Legend

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Choose the display mode by pressing button (8) for more than 3 seconds (display(12): A...), refer to «Addendum 1». Keep button (8) depressed to get to the differentdisplay levels b, C, d, P and back to A. Release the button when the required displaylevel is reached (A, b, C, d, P).

To change between the different values or parameters (0…max. 7) of the different dis-play levels (A, b, C, d, P), press button (8) briefly. The current value appears about 2seconds after choosing the relevant parameter.

Choosing thedisplay mode

Choosing and displayingindividual values or pa-rameters

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3.2 Operating and display elements of AGU2.310...

1 10

32

11

4

12

5

7494

z21/

0202

6 7 8 9

Operating element Function1 Lockout reset button T1 T1

Reset

Resetting the LMU...2 Button for DHW operating mode T2

T2DHW on / off

3 Button for heating circuit operatingmode T3

T3Mode

Selection of operating mode:

Automatic operationContinuously «Nominal»operationContinuously «Reduced»operationStandby

4 Button for setpoint temperature ofheating circuit T4 T4

Adjustment of boiler orroom temperature setpoint

5 Button for setpoint temperature ofDHW T5 Adjustment of DHW setpoint T5

6

7

Button for line selection T6 (down)and T7 (up) Selection of operating line Prog

T6 T7

8

9

Button for adjusting T8 / T9Parameter settings T8 T9

+-

10 Info button T10 Change to Info display T10

11 LCD Display of data and operating modes12 Chimney sweep Chimney sweep / controller

stop (press both buttons)

Legend

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3.2.1 Info button

A change on the information level can be made at any time by pressing the Info button.Additional pushes of the Info button will deliver the data provided by the informationlevel.

Button T10 Meaning

1 DHW temperature2 Water pressure

3 X. Operating phase (refer to «Addendum 3»)4 Outside temperature5 Ex ALBATROS error code (refer to «Addendum 2»)6 Boiler temperature7

T3Mode

/ T2Press one of these buttons to return to the default display

When on the information level, an extended Info mode can be displayed (refer to «Ad-dendum 1», chapter 11.3).

Buttons Meaning

1Prog

T6 T7

3 s

Press both line selection buttons simultaneously for at least 3seconds

2Prog

T6 T7 Press one of these buttons to select the required display level

3T8 T9

+- Press one of these buttons to select the required display value ofthe level

4 T10 Press the Info button to switch to the Info display5

T3Mode

/ T2Press one of these buttons to return to the default display

7494

z37/

0202

T2

T4

T5

T1 T6 T7 T8 T9 T10

T3

Reset

Mode

Prog.

+-

Display

The markings around the display are to be made on the boiler side by the OEM!

Description

Extended Info mode

Proposal for markings

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Display of functions

7494

z22/

0202

2

1

7 6

5

38

Display4

Display Function

1 Water pressure sensor signal Display of water pressure (6 pointers)in increments of 0.5 bar

2 Display (2) 4 x 7 segments (large) Display of current value3 Service Display of functions:

Chimney sweep active

Controller stop active4 Display symbols Meaning of symbols:

Display of DHW temperatureor DHW heating activeDisplay of boiler or room tem-perature setpoint, or spaceheating activeDisplay of outside temperature

Operating level «Nominal»

Operating level «Reduced»Display of flame

Display of fault

5 Display (1) 4 x 7 segments (small) Display of time of day, parameter set-tings, or error code

6 Operating mode of heating circuit Operating mode is or changes to:AutomaticContinuously «Nominal»operationContinuously «Reduced»operationStandby

7 Operating mode of DHW On or off8 Time bar Display of time switch program of

heating circuit

Remove the protective LCD foil prior to installation!

Legend

Note

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3.2.2 Default display

Display Meaning

1 Operating modes ofheating circuit and

2 DHW3 Operating level of heating

circuit4 Time of day5 Actual value of boiler

temperature6 Water pressure7 State of flame8 Time pointer

1

105

7

6

2 3 4

5 8

1

7494

z31/

0202

9

9 Operating mode of boiler

If no button is pressed for about 8 minutes, the HMI will automatically return to the de-fault display.

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3.2.3 Display of status code

Buttons Display Meaning

1

7494

z23/

0202

7494

z24/

0202

When a status code is dis-played, display (1) showsalternatively the time of dayand the error code

2 T10

1005

7494

z32/

0902 Press Info button for display

of error code

3Prog

T6 T7

3 s74

94z3

3/12

02

Press simultaneously bothline selection buttons T6 /T7 for 3 seconds. The in-ternal error code will bedisplayed

Example: 49754 T10 Press Info button to switch

to the Info display5

T3Mode

/ T2Press one of these buttonsto return to the default dis-play

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3.2.4 Display of lockout code


1

7494

z25/

0202

In the case of a lockoutcode, the error code displayflashes; the LMU... will goto lockout

Example: E 150

2 T10

7494

z34/

0902

Press Info button to switchto the error code

3Prog

T6 T7

3 s

7494

z26/

1202

Press both line selectionbuttons T6 / T7 simultane-ously for 3 seconds. Theinternal error code will bedisplayed

Example: 2384 T10 Press Info button to switch

to the Info display5

T3Mode

/ T2Press one of these buttonsto return to the default dis-play

After rectification of the fault, press button T1Reset

(> 0.6 seconds) to reset the LMU...!Note

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3.2.5 Adjustment of heating circuit’s setpoint temperature


1T4

304

7494

z35/

0202 Press the flow temperature

button to adjust the heatingcircuits’ setpoint

2T8 T9

+- Press one of these buttons toadjust the required setpoint

3T5 / T4 / T3

Mode

/ T2

Press one of these buttons toreturn to the default value.Changes will be stored

The room temperature setpoint or boiler temperature setpoint will be changed depend-ing on the plant’s configuration (with / without outside sensor)!

If no button is pressed for about 8 minutes, the HMI will automatically return to the de-fault display. Changes will be stored.

3.2.6 Adjustment of DHW setpoint temperature «TBWSoll»


1T5

402

7494

z36/

0202

Press the DHW setpoint buttonto adjust the setpoint of theDHW temperature

2T8 T9

+- Press one of these buttons toadjust the required setpoint

3T5 / T4 / T3

Mode

/ T2

Press one of the these buttonsto return to the default value.Changes will be stored

If no button is pressed for about 8 minutes, the HMI will automatically return to the de-fault display. Changes will be stored.

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3.3 Operating and display philosophy

3.3.1 AGU2.361... / AGU2.362... / AGU2.303...

For an overview of the info and error displays, refer to the Addendums.

RESET

TKist

Info displaylevel A0...A4

Afte

r app

rox.

8 m

in.

POTSetpoint

Potentiometer

actuation

Error displayMessages

e.g. errors

Select modeInfo displaylevel A ... P

Display mode button (8)

Long push (> 2.5 s)

Sele

ctio

n le

vel P

in s

elec

t mod

e

Prog. modelevel P

Dis

play

mod

e bu

tton

(8)

Pres

s >

2.5

s

Afte

r 2 o

utpu

ts (f

lash

ing)

Afte

r app

rox.

12

/ 25

s (

C

onfig

. HM

i)

Afte

r app

rox.

3 s

7494

d30e

/010

3

Display mode button (8)Short push (< 2.5 s)

Dis

play

mod

e bu

tton

(8)

Long

pus

h (>

2.5

s)

⇐

Afte

r app

rox.

2 s

Display mode button (8)Short push (< 2.5 s)

Startup / initialization

Select modeKeep display mode button (8) depressed (long push)→ Display levels change (A, B, C, D, P)

Press display mode button (8) (short push)→ Displayed value changes within the level

Program mode «P»+ Increase value → Press button for display mode (8)

briefly- Decrease value → Press chimney sweep button (9)

brieflyENTER Adopt value → Press button for display mode (8)

(feedback)ESC Reject value → Wait (> 12 s / 25 s)

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3.3.2 AGU2.310...Operation is similar to that of the QAA73...room unit.

Res

et

Star

tup

Dis

play

(2):

Setp

oint

(C°)

Setp

oint

adj

ustm

ent T

4 (T

5)

Adju

stm

ent T

8 (T

9)

Exit

T2 (T

3)

T4 (T

5)En

duse

r lev

elD

ispl

ay (1

): Li

neD

ispl

ay (2

): Va

lue

Para

met

er s

ettin

g T6

(T7)

Adju

stm

ent

Valu

e: T

8 (T

9)Li

ne: T

6 (T

7)

Exit

T2 (T

3)D

ispl

ayle

vel A

0...A

5

Info

mod

e T1

0

Long

pus

hT6

/ T7

Exit

T2 (T

3)T1

0

Sele

ct m

ode

leve

l B...

D

T6 (T

7)Se

lect

ion

disp

lay

leve

l

T8 (T

9)Se

lect

ion

disp

lay

valu

e

7494d39e/0503

Stan

dard

dis

play

Dis

play

(1):

Tim

eD

ispl

ay (2

): Tk

ist

Dis

play

(1):

Stat

us c

ode

Dis

play

(2).

Tki

st

Dis

play

stat

us c

ode

Dis

play

(1):

Tim

eD

ispl

ay (2

): Lo

ckou

t cod

e bl

inks

Dis

play

faul

t cod

e

Sym

bol

fla

shes

Serv

ice

leve

l

Long

pus

hT6

/ T7

Cod

e

OEM

leve

l

Long

pus

hT6

/ T7

Adju

stm

ent

Valu

e: T

8 (T

9)Li

ne: T

6 (T

7)

Adju

stm

ent

Valu

e: T

8 (T

9)Li

ne: T

6 (T

7)

Info

mod

e T1

0

Dis

play

(1):_

_ _

Dis

play

(2):

Tkis

t

Long

pus

h T4

/ T5

Chi

mne

y sw

eep

func

tion

Exit

T2 (T

3)

Lang

T4

/ T5

Con

trolle

r sto

p fu

nctio

nD

ispl

ay (1

):_ _

_D

ispl

ay (2

): Ph

2Rel

23/53


3.3.3 Setpoint adjustments

The assignment of setpoints depends on the compensation variants for Hz and Bw.

The following table shows a summary:

LMU... compensation variant Hz Meaning for boiler or room temperature setpointFixed value control Boiler temperature setpointWeather compensation LMU... Room temperature setpointOthers Locked

LMU... compensation variant Bw Controller stop function Meaning for DHW setpointFixed value control Inactive DHW temperature setpointFixed value control Active Heating outputOthers Inactive LockedOthers Active Heating output

With regard to the setting limits of the individual setpoints, following applies:

Setpoint Minimum value Maximum valueBoiler temperature setpoint (TvSollMmi) TkSmin TkSNormDHW temperature setpoint (TwSollMmi) TbwSmin TbwSmaxRoom temperature setpoint(TsRaumMmi)

TrSmin TrSmax

Heat output PkesselMin PkesselMax

The operator modules have 2 potentiometers «P5» and «P6» for making setpoint re-adjustments.When changing a setpoint adjustment, display (12) shows the adjusted value. On com-pletion of the change, the previous display will reappear after about 2 seconds.

Using buttons T4 / T5 of the operator modules, the setpoints can be changed.

AGU2.361... withAGU2.362..., AGU2.303...

AGU2.310...

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3.4 Setting the parameters3.4.1 AGU2.361... / AGU2.362... / AGU2.303...

1. As described in section «Operation and display», press display mode button (8) tochoose display level «P» (keep button depressed).

2. As described in section «Operation and display», press display mode button (8) tochoose the required parameter (press button briefly).

3. Adjust the value:

The only parameters that can be changed are P0...P6. To do this, wait until the value ofthe parameter flashes on the display (12).

Proceed as follows:

P← (+) or (Enter)

Increase value (+): Press display mode button (8) briefly several times(< 1 second)

← (-) Decrease value (-): Press chimney sweep button (9) briefly several times(< 3 seconds)

Save value (Enter): Press display mode button (8) for at least 3 secondsReject value (Esc) Wait (for time, refer to parameter configuration HMI)

As a confirmation, the display (12) shows P0...P6 in consecutive order and the newlyadjusted value. The new value will only be adopted after storage.

Example:If P1 was changed and P2 shall be changed, parameter level P must be reselected(P0..., P1..., P2...).

In terms of printed circuit board, the AGU2.361... and AGU2.362... correspond to theAGU2.303...When using AGU2.361... and AGU2.362... or AGU2.303..., parameters P0, P1 and P2will not be displayed.

Room temperature setpointThe enduser can change the room temperaturte setpoint via the potentiometer for theboiler temperature setpoint or the room temperature setpoint 5 . The 7-segment dis-play will change from «TKSollist» to the display of the room temperature setpoint and –after about 2 seconds – back to «TKSollist».

DHW temperature setpointThe enduser can change the DHW temperature setpoint via the potentiometer for theDHW temperature setpoint 6 . The 7-segment display will change from «TKSollist» tothe display of the DHW temperature setpoint and – after about 2 seconds – back to«TKSollist».

The boiler, room and DHW temperature setpoints also appear on display «d» (refer to«Addendum 1»):d2 The boiler temperature setpoint is to be set via potentiometer 5

d3 The room temperature setpoint is to be set via potentiometer 5

d4 The DHW temperature setpoint is to be set via potentiometer 6

For OEM parameterization, the QAA73... is required, connection to LMU... terminalX10-01 or via service interface 13 to the AGU2.361...

Changing parameters:(only P0...P6)

Parameterizationenduser

25/53


3.4.2 AGU2.310...

Parameter settings to meet individual enduser needs.

Buttons Description1

ProgT6 T7 Press one of the line selection buttons.

This will take you to programming level «Enduser»2

ProgT6 T7 Press the line selection buttons to choose the relevant line.

The display (1) shows «Pxxx»3

T8 T9

+- Adjust the required value with one of these buttons. The adjust-ment is stored as soon as you change to some other line (to alterindividual bits, a change of parameter is required).The parameter list below contains all possible settings

4T3

Mode

/ T2Press one of these buttons to leave the programming level.Changes will not be stored

5 T10 Press the Info button to leave the programming level. Changeswill be stored

- If no button is pressed for about 8 minutes, the HMI will automatically return to thedefault display. Changes will not be stored

- When switching to another level, changes will be stored

Line Function Range Unit Resolution Default valueTime of day1 Time of day 0...23:59 h / min 1 min ---Setpoints5 Reduced room temperature setpoint «TrSollRed» or

(reduced boiler temperature setpoint «TvSollRed»)(When using an additional room unit, line 5 will be hidden)

TRF...TRN °C 0.5 16.0

Time program HK1 (heating circuit 1)11 Time program HC1 switch-on time 1st period 00:00...24:00 hh:mm 10 min 06:0012 Time program HC1 switch-off time 1st period 00:00...24:00 hh:mm 10 min 22:0013 Time program HC1 switch-on time 2nd period 00:00...24:00 hh:mm 10 min 24:0014 Time program HC1 switch-off time 2nd period 00:00...24:00 hh:mm 10 min 24:0015 Time program HC1 switch-on time 3rd period 00:00...24:00 hh:mm 10 min 24:0016 Time program HC1 switch-off time 3rd period 00:00...24:00 hh:mm 10 min 24:00Time program DHW31 Time program DHW 1st period on 00:00...24:00 hh:mm 10 min 06:0032 Time program DHW 1st period off 00:00...24:00 hh:mm 10 min 22:0033 Time program DHW 2nd period on 00:00...24:00 hh:mm 10 min 24:0034 Time program DHW 2nd period off 00:00...24:00 hh:mm 10 min 24:0035 Time program DHW 3rd period on 00:00...24:00 hh:mm 10 min 24:0036 Time program DHW 3rd period off 00:00...24:00 hh:mm 10 min 24:0045 Standard time programs for HC and DHW

(press both buttons T8 T9

+-

for 3 seconds)

No / yes --- --- No

For additional parameters, refer to the Basic Documentation on the LMU54... / LMU64..., P7494,parameter list, «Enduser» level, QAA73...level.

Parameter settingsfor the enduser

Description

Settings

Note

Overview of enduserparameters

26/53


Settings for the configuration and parameterization of the room unit by the heating en-gineer.


ProgT6 T7 Press one of the line selection buttons.

This takes you to programming level «Enduser»2

ProgT6 T7

3 s

Press both line selection buttons for at least 3 seconds.This takes you to programming level «Service»

3Prog

T6 T7 Press the line selection buttons to choose the relevant line.The display (1) shows «Hxxx»

4T8 T9

+- Adjust the required value with one of these buttons. The settingwill be stored as soon as you change to some other line (tochange individual bits, a change of parameter is required). Theparameter list below contains all possible settings

5T3

Mode

/ T2Press one of these buttons to leave the programming level.Changes will be stored

6 T10 Press the Info button to leave the programming level. Changeswill be stored

- If no button is pressed for about 8 minutes, the HMI will automatically return to thedefault display. Changes will not be stored

- When switching to another level, changes will be stored

Line Function Range Unit Resolution Default value90 Reduced DHW temperature setpoint

«TBWSollRed»TBWSmin-TBWSoll °C 0.5 TBWSmin

(LMU...parameter)91 Release of DHW heating

«s2_BwZspOtion»0 = DHW time program1 = DHW continuously on

--- --- 0

93 DHW operating mode selector«EcoHmiEnable»

0 = without ECO1 = with ECO

--- --- 0

For parameters, refer to the Basic Documentation on the LMU54... / LMU64..., P7494,parameter list, «Service level», QAA73...level.

Parameter settings forthe heating engineer

Description

Settings

Note

Overview of serviceparameters

27/53


Boiler-specific settings and protective functions for the boiler maker.


ProgT6 T7 Press one of the line selection buttons. This takes you to the pro-

gramming level «Enduser»2

ProgT6 T7

6 s

Press both line selection buttons for at least 6 seconds. A specialdisplay for code entry appears

3CODE

T8 T9

+-

ProgT6 T7

Enter the access code combination by pressing this buttons. Ifentered correctly, you reach programming level «OEM».→ Wrong code:If entered incorrectly, the display will return to «Service»

4Prog

T6 T7 Press the line selection buttons to choose the relevant line.The display (1) shows «Oxxx»

5T8 T9

+- Adjust the required value with one of these buttons. The adjust-ment is stored as soon as you change to some other line (to alterindividual bits, a change of parameter is required)

6T3

Mode

/ T2Press one if these buttons to leave programming level «OEM».Changed values will be stored or not, depending on the parame-ter settings of the LMU5... / LMU6...

7 T10 Press the Info button to leave the programming level. Changedvalues will not be stored

If no button is pressed for about 8 minutes, the HMI will automatically return to the de-fault display.Changes will not be stored.

For parameters, refer to the Basic Documentation on the LMU54... / LMU64..., P7494,parameter list, «OEM» level, QAA73...level.

Parameter settingsfor the OEM

Description

Settings

Note

28/53


3.4.3 Setting the parameters of the LMU... via the QAA73... room

unit

This section explains parameterization of the LMU... via the QAA73... room unit in con-nection with an AGU...For more detailed information about the room unit and its other functions, refer to BasicDocumentation CE1P2284.

Press buttons or on the QAA73…’s information level simultaneouslyfor at least 3 seconds.You are now on the parameter setting level of the LMU...

After accessing the LMU...’s parameter setting level, you are on the enduser level.

Press buttons on the QAA73... simultaneously for at least 3 seconds.

Press buttons on the QAA73... simultaneously for at least 9 seconds and enterthe code.

- According to the philosophy of the QAA73..., followed by a change of line (with thiskind of parameter setting, the value will be adopted)

- After the first change of parameter, the AGU... will show display code «183»

- Press the Info button, or- Press the operating mode button, or- If nothing is changed or set for 8 minutes, parameterization will automatically be

closed

Note:- Up to QAA... version 1.3 When closing parameterization as described above, any parameter changes made will not be adopted!- QAA... version 1.4 or higher When closing parameterization as described above, any parameter changesmade will be adopted!

- When parameterization is closed, display code «183» disappears

The parameterization described here only applies to the values of the LMU… con-nected to the QAA73... room unit. The parameters of the QAA73… will not be affectedby this operation.

If the QAA73... is used for making parameter settings, the unit may only be fitted or re-moved when power is turned off.

Accessing the LMU...’sparameter setting level

Enduser level

Service level

OEM level

Changing a parameter

Closingparameterization

Notes

29/53

Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products Startup / initialization 28.07.2003

4 Startup / initializationOn startup after power-On, or after a lockout reset, the setpoints will be initialized.

These setpoints apply until a first readjustment is made (e.g. via the setpoint potenti-ometer or parameterization):

Setpoint potentiometer Initialization dataBoiler temperature setpoint LMU... parameter TVSoll HMI EEPROMDHW temperature setpoint LMU... parameter TBWSoll HMI EEPROMRoom temperature setpoint LMU... parameter TRSoll HMI EEPROM

After a readjustment, these values will be overwritten with the new value and perma-nently stored in EEPROM.After this point in time, the above mentioned initialization data will no longer be re-quired.When a new startup is made, or after power-On, the previous settings will be loadedfrom EEPROM and passed on.

Also, the software version number of the operator module and that of the connectedtype of LMU... will be delivered.

Function

30/53

Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products Functions 28.07.2003

5 Functions

5.1 Functions generally applicable to AGU2.303... /AGU2.361... / AGU2.362... / AGU2.310...

5.1.1 Chimney sweep function

The chimney sweep function enables the boiler to be started up in heating mode bypressing the chimney sweep button (9) on the AGU2.361... or AGU2.303...This function serves for making measurements on the boiler. When the chimney sweepfunction is activated, the boiler will deliver maximum output until the limit thermostatcuts out.To ensure maximum supply of heat, the chimney sweep function generates the forcedsignal for heat supply.

- Generation of a forced signal for heat supply- Deactivation of the PID and 2-position controller- Delivery of maximum heat output (predefined by parameter PhzMaxAkt)- During the time the chimney sweep function is activated, an appropriate status code is delivered

AGU2.303... / AGU2.361... AGU2.310...

Triggering - Press the chimney sweep button (9)for more than 3 seconds, but for nomore than 6 seconds

- As a confirmation, display (12)shows «SF». In addition, fault (16)flashes once per period of time

- Press simultaneously buttons T4 and

T5 for more than 3 seconds, but for nomore than 6 seconds

- On the display, the pointer of the chim-ney sweep symbol flashes

- On the display (2), the currently se-lected temperature appears: Actualboiler temperature

Closing - Press the chimney sweep button (9)for more than 1 second (refer tochapter «Triggering»)

- When changing to the controllerstop function

- When the limit thermostat cuts out- When the LMU... initiates lockout or

changes to prevention of startup

- Press button T3Mode

or T2

- Change to the controller stop function- When the LMU... changes to the lockout

position

Description

Function

31/53


5.1.2 Controller stop function

The controller stop function enables the boiler’s heat output to be adjusted manually inheating mode by pressing chimney sweep button (9) on the AGU2.361... orAGU2.303...The function serves for making measurements on the boiler.

- Press the chimney sweep button (9) for more than 6 seconds- Display (12) shows the adjusted relative boiler output (e.g. 100 for maximum and 0 for minimum boiler output). In addition, the fault display (16) flashes twice per period of time

- Press buttons T4 and T5 for more than 6 seconds- On the display, the pointer of the controller stop function flashes- Display (2) shows the adjusted relative boiler output

- Generation of a forced signal for heat supply- Deactivation of the PID and 2-position controller- Delivery of a start output (parameter «P0», only AGU2.361...)

- Press the chimney sweep button (9) briefly to run the boiler at minimum output (= 0), display (12)- Press the display mode button (8) briefly to run the boiler at maximum output (= 100), display (12)

- Set the heat output with the potentiometer for the DHW temperature setpoint (6)- Set the relevant setpoint (boiler / room) with potentiometer (5)

- The output can be increased / decreased in percentage steps by pressing setting

buttons T8 T9

+-

- Minimum and maximum output can be directly selected by pressing the line selection

buttons ProgT6 T7

.

If the controller stop function is triggered via PC tool ACS420, the current setpoint ofburner output will appear on the display of the AGU2.310..., but the settings arelocked.

- The heat output can also be adjusted with the QAA73... room unit

QAA73... AGU2.361... /AGU2.303...

Boiler tempera-ture setpoint

Adjustment of boiler output

Not present Not present TkSmax Adjustment not possible, the delivered ignitionload is constant

Not present Present TvSollMmi On the relevant operating sectionPresent Not present TkSmax QAA73... room temperature setpoint knobPresent Present TvSollMmi QAA73... room temperature setpoint knob

- To deactivate the controller stop function, press chimney sweep button (9) for more than 1 second (refer to «Triggering»)

- Press button T3Mode

or T2

- When the LMU... changes to the lockout position

Description

TriggeringAGU2.303... / AGU2.361...

TriggeringAGU2.310...

Function

Settings AGU2.361...(without AGU2.362...)

Settings AGU2.361... withAGU2.362...or AGU2.303...

Settings AGU2.310...

Settings QAA73...(AGU2.303.../AGU2.361...)

ClosingAGU2.303... / AGU2.361...

Closing AGU2.310...

32/53


– To adopt the output adjusted last as the maximum heat output, press the chimneysweep button (9) for at least 9 seconds. LMU... parameter «NhzMax» or «Phzmax»will be appropriately adjusted, depending on whether or not speed limitation via pa-rameterization is active

5.2 Functions of the AGU2.303... / AGU2.361... /AGU2.362...

5.2.1 Summer / winter changeover

The button for summer / winter changeover (3) is used for manual changeover betweensummer and winter and automatic operation:

Manually summer Manually winter Automatic operationLED «Auto» (2) LED «Auto» (2) LED «Auto» (2)

LED (4) LED (4) LED (4) or

In automatic operation, the outside sensor and automatic summer / winter changeoverensure changeover between summer and winter operation.The result of automatic operation is indicated by LED (4).

5.3 Functions of the AGU2.310...

5.3.1 Time-of-day function

To ensure that the heating program can provide its function, the time switch with itstime of day must be correctly set.

Refer to «Parameterization enduser».

The current time of day is now set.This setting is important. It ensures that the space and DHW heating program will func-tion correctly.

• Each time button T9

+

or T8

-

is pressed during the time setting, the seconds are setto 0

• The clock continues to run when making the setting

Changing the maximumheat output (configurationRG6 = xxx1 xxxx)AGU2.361.../AGU2.303...

AGU2.303... / AGU2.361...with AGU2.362...

Description

Setting

Effect

Note

33/53


5.3.2 Heating circuit operating modes

Heating circuit 1

The control provides 4 different heating circuit operating modes for LMU... heating cir-cuit 1. They can be directly selected depending on the requirements.

The operating modes are selected by pressing button T3Mode

. On the LCD, a pointer belowthe respective symbol points to the selected heating circuit operating mode.

Operating mode Designation Effect of selectionAutomatic operation • Heating circuit 1 according to

time switch program 1Standby • Heating circuit 1 switched off

• Frost protection functions activeContinuously «Nomi-nal» operation

• Heating circuit 1 continuously on accord-ing to the adjusted nominal room tem-perature setpoint or heating circuit setpoint

Continuously «Re-duced» operation

• Reduced room temperature setpoint orheating circuit frost protection setpoint

QAA53... /QAA73...

RT /SU

B9 Operating mode HC1 S/Wchange-over 4)

Heatinglimitswitch

Setpoint HC1 DemandHC1

--- Auto Active TvSollWf-Nenn Red RT / SU ¹)--- Winter Inactive TvSollWf-Nenn RT / SU ¹)

--- Winter Inactive TvSollWf-Red RT / SU ¹)--- Summer Inactive FS ------ --- Winter Inactive TvSoll TvSollRed RT / SU ¹)--- --- Winter Inactive TvSoll RT / SU ¹)

--- --- Winter Inactive TvSollRed RT / SU ¹)--- --- Summer Inactive FS ---

x x Auto ³) Inactive Tset QAA...x x Summer Inactive FS ---

TvSollWf-Nenn Flow temperature setpoint resulting from weather compensation – nominal B9 Outside sensorlevel HGS Heating limit switch LMU...

TvSollWf-Red Flow temperature setpoint resulting from weather compensation – reduced FS Frost protectionlevel

TvSoll Flow temperature setpoint according to the heating circuit setpoint adjusted onthe AGU2.310...

(TSet) Flow temperature setpoint of the connected QAA... x Don’t careSU Time switch (external) --- Not availableRT Room thermostat Optional ²)TvSollRed Flow temperature setpoint according to the heating circuit setpoint adjusted on Present

the AGU2.310... – reduced

¹) Applies to LMU... parameter «KonfigRg1», time switch 1 = 0If this parameter = 1, the demand is always set.The temperature level is determined by the time program of the AGU2.310....In that case, «RT / SU» will not be evaluated.

²) This input will not be evaluated if an AGU2.310... is connected and LMU... parameter «KonfigRg1» time switch 1 = 1, see ¹)³) Only if «B9» is present, otherwise winter4) Summer / winter changeover in the LMU.. readjusts itself automatically, depending on the operating mode and the connected

components. There is no manual adjustment

Description

Operating modes

, , ,

Effect

Legend

34/53


5.3.3 DHW operating mode

The DHW operating mode is switched on / off by pressing the DHW operating mode

button T2 .

DHW heating can be switched on / off independent of the other operating modes.The setting is indicated by a bar below the DHW symbol .

Standby Off

Release of DHW / comfort On

ECO On with ECO function→ This operating mode must be en-abled on setting line 93 and releasedby the LMU5... / LMU6...!

OFF No DHW heatingON DHW heating is switched on. A setpoint is generated based on heat de-

mand and the settings made, and then passed on to the BMUON ECO DHW operating mode for plants with instantaneous DHW heaters. The

setpoint is generated and passed on to the BMU. But boiler control doesnot continually keep the temperature at the setpoint. DHW is heated onlywhen there is DHW consumption (no comfort)

If the LMU5... / LMU6... does not indicate a DHW circuit, operation and display will notbe possible.

5.3.4 Functions when room unit is connected

If a room unit is connected to the LMU..., all functions supported by the room unit willbe locked or hidden by the AGU2.310...

Such functions are, for example:• Time-of-day setting on the AGU2.310... (only display)• Time programs• Setpoints

Parameter settings via AGU2.310... are still possible!

5.3.5 Backlit display

When a button (T1...T10) is pressed, the display will be lit for about 8 minutes.

Description

Effect

35/53

Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products Applications 28.07.2003

6 ApplicationsThe applications depicted below show the operator modules integrated in the boilercontrol panel.

6.1 AGU2.350... / AGU2.36x...

7494z02/0801

P

Application:- Basic application- QAA73... digital room unit in the refer-

ence room

Note:- AGU2.350... can be replaced by

AGU2.362... or QAA73..., depending onthe application

- Pure boiler operationAGU2.361... AGU2.350...

7494z04/0801

P

Auto

- + - +

Application: External room thermostat or ex-ternal time switch

Note:Boiler and heating circuit / DHW heating

AGU2.361... AGU2.362...

7494z05/0801

P

Auto

- + - +

Application: Time switch (supplied byGrässlin) integrated in the AGU2.362...

Note:- Boiler and heating circuit / DHW heating- Heating circuit and switching program via

time switch

AGU2.361... AGU2.362...

36/53

Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products Applications 28.07.2003

7494z06/0801

P

Auto

0 4 8 12 16 20

°C

+-i

Application: Very convenient operation

Note:- Boiler and heating circuit / DHW heating- Heating circuit / DHW switching program- Additional displays via QAA73...- Parameters can be set on the boiler

AGU2.361... QAA73...

6.2 AGU2.303...74

94z1

2/02

02

Application: Boiler and heating circuit / DHWheating

Note:- Integrated in the boiler control panel

AGU2.303...

In the entire system, only one unit with an OpenTherm interface (e.g. QAA73…) can beconnected!

6.3 AGU2.310...

7494z29/0202

Application: Very convenient operation

Note:- Boiler and heating circuit / DHW heating- Heating circuit / DHW switching program- Additional displays via Info button- Parameters can be set on the boiler- Backlit display

AGU2.310...

Note

37/53

Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products Assignment of terminals 28.07.2003

7 Assignment of terminals

Socket

7-segment display

Buttons

Mains switch

1

2

3

X22 6

1 5

Stiftleisten

X1

X3 X30

1 2

1 25 6

9 10

1314

12

7494

m16

e/11

01

Assignment of terminals

X1 or X2 (6 poles) X3 (10 poles) X30 (14 poles)

Pin Connection Pin Connection Pin Connection

1 Backlighting 1 1 OpenTherm2 OpenTherm (IN) 2 2 Lockout reset LMU...3 GND 3

WinterAutomatic 3 Chimney sweep

4 GND 4 Auto / winter button 4 Fault LED5 OpenTherm Sense

Link5 GND 5 15 V supply

6 Free 6 +5 V 6 Free7 DHW pot. (wiper) 7 Internal bus8 HC pot. (wiper) 8 GND9 HC pot. (end) 9 Reset LMU...10 Free 10 Internal bus

11 Flame LED12 IR LED13 Free14 OpenTherm

AGU2.361...

38/53


Time switch

Button

Setting knobs

SocketX3

1 2

9 10

7494

m09

e/11

01

Rear

Perforated cutout

Assignment of pins

X3 (10 poles)

Pin Connection

123

WinterAutomatic

4 Auto / winter button5 GND6 +5 V7 DHW pot. (wiper)8 HC pot. (wiper)9 HC pot. (end)10 Free

AGU2.362...

39/53

Siemens Building Technologies Operating Instructions AGU... Operator modules CC1P7494enHVAC Products Assignment of terminals 28.07.2003

Soldering side Socket Component side 7-segment display

Buttons

7494

z20e

/030

2

X301412108642

131197531

Assignment of pins

X30 (14 poles)

Pin Connection

1 OpenTherm (OUT)2 Reset LMU...3 Chimney sweep4 Fault LED5 15 V supply6 Free7 Internal bus8 GND9 Reset LMU...10 Internal bus11 Flame LED12 IR LED13 Free14 OpenTherm

AGU2.303...

40/53


7494z30e/0302

Soldering side Component sideLCD

Buttons

Assignment of pins

X30 (14 poles)

Pin Connection

1 ---2 Reset LMU...3 Chimney sweep4 ---5 15 V supply6 ---7 Internal bus8 GND9 Reset LMU...10 Internal bus11 ---12 ---13 ---14 ---

AGU2.310...

41/53

Siemens Building Technologies Operating Instructions AGU... Operator modules CC1P7494enHVAC Products Connection diagram 28.07.2003

8 Connection diagram

8

LMU5... / LMU6...

QAA73...

QAA73...

7494z13/0202 AGU2.361...

AGU2.303...

X30

AGU

2.10

2...

X3AGU2.101...

X30

X1

X2

AGU2.362...

Auto

- + - +

SU

AGU

2.10

0...

X30

1)

AGU2.103...X3

QAA73...

X10-01

2) 3)

3)

AGU2.310...

Refer to chapter «Applications»

1) Temporary connection for service purposes.If «X2» on the AGU2.361... is used for service purposes, a room unit connectedto «X10-01» of the LMU… will be deactivated.The QAA73... may only be fitted or removed when the AGU2.361... is discon-nected

2) Fitting the QAA73..., e.g. in a boiler control panel3) Maximum one QAA73... can be used

Notes

42/53

Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products Dimensions 28.07.2003

9 Dimensions

8542.05

19.3

25.15

19.3

17

74.4

27.8

33

23

4

19

10

1418

max

. 96.

7

91.9

8 (s

eal)

90 (h

ousi

ng)

max. 26.5

96

7494

m03

e/11

01

38.8

64

35

77.5

25 30

85

96

19

10

15

51

96

24.3

33

36.2

23 10

4

max

. 96.

7

91.9

8 (s

eal)

90 (h

ousi

ng)

max. 26.5

41.8

96

7494

m05

e/11

01

AGU2.361...

AGU2.362...

43/53

Siemens Building Technologies Operating Instructions AGU... Operator modules CC1P7494enHVAC Products Dimensions 28.07.2003

23 10

4

max. 26,5

max

. 96,

7

92 (s

eal)

90 (h

ousi

ng)

96

33

7494

m06

e/03

02

79,

80,

2

70,

2

7,3

0,2

9

1,55

1

0,14

83

24,52 24,95

8,67

8 (3

x)

17,5

57,4

5

4 (4

x)

13,4

21 32

73

84

924

13,4

28,6

92

16,5

16,5

84

46

4

7494m10/0202

AGU2.350...

AGU2.303...

44/53

Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products Dimensions 28.07.2003

Front foil

LCD

Light conductor

Socket

Buttons (10 x)Height 17 mm

Front plate

Display

26 29

60

59

56

2712

4 (5 x)

127

38

14,5

4

12

56

20

91

12

120

56

4

2540

,7

57 65

7494

m22

e/03

02

PCB15 1,5

110,18

Pin 1Core marking

800 2

Pin 1

Ribbon cable14-coreSpacing 1.27 mmAWG28Grey

7494m12e/1202

Pin 1Core marking

300 2

Pin 1


7494m23e/1202

AGU2.310...

AGU2.100A109

AGU2.100A209

45/53

Siemens Building Technologies Operating Instructions AGU... Operator modules CC1P7494enHVAC Products Dimensions 28.07.2003

Pin 1 Core marking

180 2

Pin 1

7494m11e/1101Ribbon cable10-coreSpacing 1.27 mmAWG28Frey

25

10.5

170 2

Ferrules

Cores 4 and 5twisted andsoldered Shrink sleeve

Pin1To pin 3

To pin 2Cores 1 and 6cut off


7494

m14

e/03

02

10.5

25

1000 5

Pin 1

Ribon cable6-coreStranded wireAWG36

Cores 4 and 5twisted andsoldered

Shrink sleeveCores 1 and 6cutt off

Ferrules

7494

m15

e/03

02

AGU2.101...

AGU2.102...

AGU2.103...

46/53

Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products Technical data 28.07.2003

10 Technical data

Degree of protection of housing- AGU2.303...- AGU2.310...- AGU2.350...- AGU2.361...- AGU2.362...

IP 00IP 00IP x4D ¹)IP x4D ¹)IP x4D ¹)(without integrated time switch)IP 40 to DIN(with integrated time switch)

¹) To DIN VDE 0470 or EN 60 529 (whenmounted)

Mounting position optionalContamination environment to EN 60 730Safety class- AGU2.361... / AGU2.362...- AGU2.303... / AGU2.310...

III with parts of safety class IIclass III

Transport DIN EN 60 068-2-30 / EN 60 730-1Temperature range -20...+70 °CVibrations EN 60 721-3-2 (requirements of class 2M2

[EN 60 068-2-6])Operation DIN EN 60 721-3-3Temperature range 0...+60 °C

AGU2.303... approx. 46 gAGU2.310... approx. 42 gAGU2.350... approx. 52 gAGU2.361... approx. 117 gAGU2.362... (without time switch) approx. 90 g

All AGU... (with housing) PC / ABS

All AGU... (with housing) UL 94-V 2 (1 mm)

Flash typically approx. 2.5 h (when supplied)

Accuracy of time of day max. 14 min. p.a. (at the time of supplyand an ambient temperature of 25 °C)

Degrees of protection

Environmentalconditions

Weight

Material of housing

Flame class

Backup AGU2.310...

Time of day

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Siemens Building Technologies Operating Instructions AGU... Operator modules CC1P7494enHVAC Products Technical data 28.07.2003

AGU2.100... connectors to DIN 41 651 without strainrelief, e.g. FCI Quickie III 71600-014



AGU2.103... plug cable connector, 6 polese.g. AMP 5-737287-1 or 737287-1 MOLEX 90075-0007 or 90075-0005

Grässlin EM2 / digi (supplied by thirds)wiring to be made separately from LMU...

Connectors for cableconnections (on request)

Time switch (AGU2.362...)

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Siemens Building Technologies Operating Instructions AGU... Operator modules CC1B7494enHVAC Products Addendum 1 28.07.2003

11 Addendum 1

11.1 Info display for AGU2.361...The parameters of groups A, b, C and d can only be displayed, those of group P can also be changed.

LED ¹)Display level Name of LMU...

variableDescription 15 P 14

General information (enduser level) ²)A 0 Meldecode Diagnostic code (system) ³)A 1 TkIst Boiler temperature (flow)A 2 TbwIst1 DHW temperature sensor 1A 3 Druck Water or air pressureA 4 Betr.Phase Operating phase of burner control

(refer to «addendum 3», chapter 13)

Temperatures (service level)b 0 DiagnoseCode LMU...-internal software diagnostic code ³)b 1 TkRuec Boiler return temperatureb 2 TbwIst2 DHW temperature sensor 2b 3 Tabgas Flue gas temperatureb 4 TiAussen Outside temperatureb 5 TaGem Composite outside temperatureb 6 TaGed Attenuated outside temperatureb 7 TvIst Flow temperature AGU2.500...

Process values (service level)C 1 IonStrom Ionization currentC 2 Gebl_Drehz Fan speedC 3 Gebl_PWM_AusAkt Current fan control (PWM)C 4 RelModLevel Relative outputC 5 Pumpe_PWM Pump setpoint (PWM)C 6 ek0 Control differential

Setpoints (service level)d 1 Tsoll Setpoint of 2-position or modulating controller (PID)d 2 TkSoll Current boiler temperature setpointd 3 TsRaum Room temperature setpointd 4 TbwSoll DHW temperature setpointd 5 PhzMax Maximum degree of modulation in heating moded 6 NhzMax Maximum speed at maximum output in heating mode

Parameters (service level) (Prog Mode) (setting only with special functions)P 0 PhzRelMmi Start output controller stop (only in operating mode without the ap-

propriate setpoint potentiometer, otherwise locked)P 1 Tr/TvSollMmi Room / flow temperature setpoint (only in operating mode without

the appropriate setpoint potentiometer, otherwise locked)P 2 TbwSollMmi DHW setpoint (only in operating mode without the appropriate set-

point potentiometer, otherwise locked)P 3 reserviert ReservedP 4 NqmodMin Minimum pump speedP 5 Sth1 Slope HC1P 6 DTR1 Parallel displacement HC1

1) LED: = flashing, = lit, = dark2) The parameters of group «A» can also be selected by briefly pressing the button for the display mode3) Indication flashes alternately

Note: After about 8 minutes, the display will automatically change to the boiler temperature «A1»

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Siemens Building Technologies Operating Instructions AGU... Operator modules CC1P7494enHVAC Products Addendum 1 28.07.2003

11.2 Info display for AGU2.303... / AGU2.361... /AGU2.362...

The parameters of groups A, b, C and d can only be displayed, those of group P can also be changed.LED ¹)

Display level Name of LMU...variable

Description 15 P 14

General information (enduser level) ²)A 0 Meldecode Diagnostic code (system) ³)A 1 TkIst Boiler temperature (flow)A 2 TbwIst1 DHW temperature sensor 1A 3 Druck Water or air pressureA 4 Betr.Phase Operating phase of burner control

(refer to «addendum 3», chapter 13)

Temperatures (service level)b 0 DiagnoseCode LMU...-internal software diagnostic code ³)b 1 TkRuec Boiler return temperatureb 2 TbwIst2 DHW temperature sensor 2b 3 Tabgas Flue gas temperatureb 4 TiAussen Outside temperatureb 5 TaGem Composite outside temperatureb 6 TaGed Attenuated outside temperatureb 7 TvIst Flow temperature AGU2.500...

Process values (service level)C 1 IonStrom Ionization currentC 2 Gebl_Drehz Fan speedC 3 Gebl_PWM_AusAkt Current fan control (PWM)C 4 RelModLevel Relative outputC 5 Pumpe_PWM Pump setpoint (PWM)C 6 ek0 Control differential

Setpoints (service level)d 1 Tsoll Setpoint of 2-position or modulating controller (PID)d 2 TkSoll Current boiler temperature setpointd 3 TsRaum Room temperature setpointd 4 TbwSoll DHW temperature setpointd 5 PhzMax Maximum degree of modulation in heating moded 6 NhzMax Maximum speed at maximum output in heating mode

Parameters (service level) (Prog Mode) (setting only with special functions)P 3 reserviert ReservedP 4 NqmodMin Minimum pump speedP 5 Sth1 Slope HC1P 6 DTR1 Parallel displacement HC1

1) LED: = flashing, = lit, = dark2) The parameters of group «A» can also be selected by briefly pressing the button for the display mode3) Indication flashes alternately


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11.3 Info display for AGU2.310...The parameters of groups b, C and d can only be displayed

Display level Name of LMU...variable

Description

General information (enduser level)See section Fehler! Verweisquelle konnte nicht gefunden werden. Fehler! Verweisquelle konnte nicht gefunden werden.

Temperatures (service level) ¹)b 0 DiagnoseCode LMU...-internal software diagnostic codeb 1 TkRuec Boiler return temperatureb 2 TbwIst2 DHW temperature sensor 2b 3 Tabgas Flue gas temperatureb 4 TiAussen Outside temperatureb 5 TaGem Composite outside temperatureb 6 TaGed Attenuated outside temperatureb 7 TvIst Flow temperature AGU2.500...b 8 Reserviertb 9 Reserviert

Process values (service level) ²)C 0 ReserviertC 1 IonStrom Ionization currentC 2 Gebl_Drehz Fan speedC 3 Gebl_PWM_AusAkt Current fan control (PWM)C 4 RelModLevel Relative outputC 5 Pumpe_PWM Pump setpoint (PWM)C 6 ek0 Control differentialC 7 ReserviertC 8 ReserviertC 9 Reservier

Setpoints (service level) ³)d 0 Reserviertd 1 Tsoll Setpoint of 2-position or modulating controller (PID)d 2 TkSoll Current boiler temperature setpointd 3 TsRaum Room temperature setpointd 4 TbwSoll DHW temperature setpointd 5 PhzMax Maximum degree of modulation in heating moded 6 NhzMax Maximum speed at maximum output in heating moded 7 Reserviertd 8 Reserviertd 9 Reserviert

¹) 1. Press Info button.2. Press buttons «T6 / T7» for at least 3 seconds.3. Choose the relevant parameter with buttons «T8 / T9».

²) 1. Press Info button.2. Press buttons «T6 / T7» for at least 3 seconds.3. Press button «T7».4. Choose the relevant parameter with buttons «T8 / T9».

³) 1. Press Info button.2. Press buttons «T6 / T7» for at least 3 seconds.3. Press button «T7» twice.4. Choose the relevant parameter with buttons «T8 / T9».


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Siemens Building Technologies Operating Instructions AGU... Operator modules CC1P7494enHVAC Products Addendum 2 28.07.2003

12 Addendum 2Error code display (LMU5... / LMU6... of version 2.08)

In the event of a nonvolatile LMU... lockout position, fault (16) is continually displayed.In addition, the diagnostic code on the display flashes (12).To cancel the lockout position, press lockout reset button (7) for at least 2 seconds.

Fault code(info level A0)

Potential cause Group

0 No entry in ALBATROS code made10 Fault outside sensor Outside sensor, etc.20 Fault boiler temperature sensor 1 Boiler temperature sensor, sen-

sors near the boiler28 Fault flue gas sensor Boiler temperature sensor, sen-

sors near the boiler32 Fault flow temperature sensor 2 Flow temperature sensor40 Fault return temperature sensor 1 Return temperature sensor50 Fault DHW temperature sensor 1 DHW temperature sensor52 Fault DHW temperature sensor 2 DHW temperature sensor61 Fault room unit 1 Room sensor, room unit62 Wrong room unit 1 or wrong radio clock connected Room sensor, room unit77 Fault air pressure sensor Various special sensors78 Fault water pressure sensor Various special sensors81 Short-circuit on LPB... or no bus power supply Communication fault82 Address collision on LPB... Communication fault91 Data overflow in EEPROM LMU... fault92 Hardware fault in electronics LMU... fault95 Invalid time of day Device fault100 2 clock time masters System fault105 Maintenance message System fault110 STB has cut out Process fault111 Limit thermostat has cut out Process fault113 Flue gas supervision equipment has cut out Process fault117 Water pressure too high Process fault118 Water pressure too low Process fault119 Water pressure switch has cut out Process fault130 Flue gas limit temperature exceeded Process fault132 Safety shutdown (e.g. by gas pressure switch) Process fault133 No establishment of flame on completion of safety time Process fault134 Loss of flame during operation Process fault135 Wrong supply of air Process fault140 Inadmissible LPB… segment number or device number Configuration fault148 Incompatibility LPB... interface / basic unit Configuration fault151 Internal fault LMU... General or internal faults152 Fault in connection with LMU... parameter settings General or internal faults153 LMU... has locked out General or internal faults154 Plausibility criteria violated General or internal faults160 Fan speed threshold not reached External components161 Maximum fan speed exceeded External components162 Fault air pressure switch (does not close) External components164 Fault heating circuit flow switch / pressure switch External components166 Fault air pressure switch (does not open) External components180 Chimney sweep function active Special functions are active181 Controller stop function active Special functions are active182 Calibration during optimization of combustion active Special functions are active183 LMU... in parameter setting mode Special functions are active

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13 Addendum 3Display of operating phases (display level A4)

On the AGU2.361... / AGU2.303... / AGU2.310..., the operating phases according to theLMU…’s sequence diagram can be displayed (display level A4 with AGU2.361... /AGU2.303...; with AGU2.310..., press Info button 3 times).Assignment of the display code and the LMU...’s phase designation is as follows:

Display Meaning Internal operating phasesof the LMU...

00 Standby (no demand for heat) PH_STANDBY01 Prevention of startup PH_STARTVER02 Fan runup PH_THL1_1

PH_THL1_203 Prepurging PH_TV04 Waiting time PH_TBRE

PH_TW1PH_TW2

05 Preignition time PH_TVZ06 Safety time, constant PH_TSA1_1

PH_TSA2_107 Safety time, variable PH_TSA1_2

PH_TSA2_210 Heating operation PH_TI

PH_MODULATIONHeating mode

11 DHW operation PH_TIPH_MODULATIONDHW mode

12 Parallel operation of space heating andDHW heating

PH_TIPH_MODULATIONHeating and DHWmode

20 Postpurging with the last control ofoperation

PH_THL2_1PH_TN_1

21 Postpurging with control of prepurging PH_THL2_2PH_TN_2

22 Home run PH_TNBPH_TLOPH_TNN

99 Lockout position (display of the currenterror code)

PH_STOER

If operating phases are passed very quickly or skipped, the relevant display code willnot appear.

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Siemens Building Technologies Operating Instructions AGU... Operator modules CC1P7494enHVAC Products Glossary 08.01.2003

14 Glossary

BMU Boiler Management UnitDHW Domestic Hot WaterHMI Human Machine Interface

Siemens Building TechnologiesLandis & StaefaBerliner Ring 23D-76437 RastattTel. +49 7222-5980Fax +49 7222-598 269www.landisstaefa.com

© 2003 Siemens Building TechnologiesSubject to change!

operator modules for lmu5... / lmu6... operating instructions

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