solar heating systems controller sr04 · 2019-01-24 · document revision 2017/02/03 sr04 set prior...

COMPETENCE INMEASUREMENT

SOLAR HEATING SYSTEMS CONTROLLER

SR04

TECHNICAL DESCRIPTION AND USER MANUAL

PLOVDIV 2017

Document revision 2017/02/03 1

CONTENT

1. ORDER CODE 2

2. TECHNICAL DATA 3

3. FRONT PANEL AND CONNECTIONS 4

4. DESIGNATION 4

5. INDICATION AND KEYBOARD 6

6. MAIN WORKING DISPLAY 7

7. OPERATING GUIDE 7

8. MENU PARAMETERS 11

9. SYSTEM PARAMETERS 12

10. MEASURES AGAINST INTERFERATIONS 15

ADVANTAGES:

● Protection of system from freezing● Protection of system from overheating● Protection of pumps from locking if not used via switching on them for short

time period● Energy saving by limiting of the electric heating element operation, if not

needed hot water in boiler ● Working with two independent solar collectors / groups collectors /● Synchronization work between solar collectors and stove● Automatic distribution of the heat to boiler, hot water storage tank, pool or

heating● Selection of priority between boiler, hot water storage tank or pool ● Winter / summer operating mode of the selected scheme mode

1. ORDER CODE

Document revision 2017/02/032

SR 04 - X.X

POWER SUPPLY - 90-250 V AC/50Hz - 12 V DC

А1А2

EXAMPLE : SR 04 - A1.S0

COMMUNICATION

RS 485 2W MODBUS RTU SLAVE 9600S0 - NoS1 -

2. TECHNICAL DATA

Analog inputRange

8( eight ) for RTD – Pt1000Measurement range and accuracy: -10÷200 °C / ± 0.5 °C

Relay outputs 8 Relay NO 250 V / 5 A

Inner coupled side phase L (see connection scheme )Option : Inner coupled side without phase L connection

Indication and KeyboardDisplay Keyboard

LCD 2 Х 8 Semisensor

Power supply 90 ÷ 250 V AC / 50Hz12 V DC(option)

Clock Non-Volatile, inside Li-on battery 3V

Communication (option)RS485 2WIRE MODBUS RTU SLAVE 9600,19200bps; parity – NONE, EVEN ; 1 , 2 stop bit

Operating Environment Temperature Relative Humidity

0 ÷ 50 °C0 ÷ 80 % RH

Size

Overall dimensions (WxHxL) 105 x 86 x 57 mm

Mounting DIN-rail M36

Weight max 300 g

Level of protection IP20

StorageStorage temperatureRelative storage humidity

-10 ÷ 70 °C0 ÷ 95 % RH

Designation Solar heating systems for DHW and heating assistance Limitations Can not use as shield


3. FRONT PANEL AND CONNECTIONS.

4. DESIGNATION

The device is a differential controller designed to control solar systems with one ortwo collectors, boiler, storage tank and pool. Applicable in smaller installations, includingonly some of those elements. It supports heating boiler from different sources – solarcollector, electric heating element or stove. Heating energy from the grid can beprogrammed in certain time zones. Built-in features are anti-lock pumps, manual on / offoutputs, trial period , actuality of measurements, nonvolatile clock.

The device adapts to the particular scheme used by allowing sensors included in itsand an indication of the operating configuration in menu SYSTEM PARAMETERS.Scheme 1 and 2 are presented its full capabilities.Of these configurations can remove anyelement except for sensors T3 of the solar panel and T2 of the boiler. As a result is aplurality of options, some of them are illustrated in Scheme 3 and Scheme 4.


SR04

SET

PRIOR

FAST

SUMWIN

SELECT

T1

PT1000

T2T3T4T5T6T7T8

Sensors RTD

Relay outputs NO

~22

0V

So

lar

colle

cto

r 1

So

lar

coll

ecto

r 2

Ho

t W

ater

Sto

rag

e Ta

nk

Po

ol

Sto

ve

Hea

tin

g o

utp

ut

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

P8 P7 P6 P5 P4 P3 P2 P1

HW

Sto

rag

e Ta

nk

Po

ol

Pu

mp

he

atin

g

N L

The Phase Lis innercoupled !Without external connectionsI total < 5А

P8

Pu

mp

Sto

ve

P7

P4

P3 P1

P2

P5

~220VN

L

4


T2

P1

T1

T3Boiler

Solar collector 1

T4

Solar collector 2

P2

Pool

P3

P4 OFF

ON

ON

Stove

T6.P5

T5

Storage tank

ON

OFF

T7.

Electric HeatingElement

P6

P7

T8

SCHEME 1

P8

Full configuration.The heat exchange is diverted by three way valve

T2

P1

T1

T3

P3

P4

T6P5

T5ON

OFF

T7.

P6

T8

P7

P8

Solar collector

Boiler


Stove

Storage tank

Pool

SCHEME 2Full configurationby circulating pump.

5

5. INDICATION AND KEYBOARD

On LCD display can be seen measured temperatures in the format of tenths of a degree.Through SELECT button choose which sensor to be displayed. Output status is reflectedon the LEDs below the display. Outputs P1 and P2 (circulators to collectors) are on oneLED, which glows if one of them is on. Output P8 (heating pump) is not displayed. LEDsshow the modes summer / winter, priority storage tank or pool, once heating . Thesemodes are switched using their respective buttons on the right. To change the defaultvalues using the parameters adjusting buttons in the center.


SR04

SET

PRIOR

FAST

SUMWIN

SELECT

60.2 C

P1/2 P6 P3 P7 P5 P4

Electricheating element Circulation of

the first or second solar collector

Warming up the storage tank

Warming up the boiler from stove

Storage tanksupported the heating

The Pool is warming up from solar panel

Button for sensor choice to display

Choice priority button between tank and pool

Once warming up boiler buttonfrom electric heating element

LCD display 2х8

Winter/summer button

Parameters adjusting buttons

LED

LED

LED

LED

LED

T2

P1

T3

T2

P1

T1

T3

P6

Minimal configuration 3 sensors and el.heating element configurationTo be used in menu SYSTEM PARAMETERSremoved all optional sensors except T1.Can set as basic configuration 1 or 2 as well.

To be used in menu SYSTEM PARAMETERSremoved all optional sensors.Can set as basic configuration 1 or 2 as well.

Boiler Boiler

Solar collector

Solar collector


SCHEME 3 SCHEME 4

6

6. MAIN WORKING DISPLAY

The temperature at the top of the boiler and the current time are seen. The setpoint ofthe electric heater can be changed by means of button Set, as shown below.

Can be replaced temporarily by a display sensor button SELECT, after 30 sec. returnsthe boiler temperature. Arrow, pointing to the icon element of the installation showswhich temperature is on the screen. Positions not included in the installation is skipped.

MANUAL ON / OFF OUTPUTS

7. OPERATING GUIDE

RULE OF OPERATING IN SCHEME 1, prioritized as (1-highest). Follow in sequenceboiler-storage tank-pool (can be specified pool has a higher priority than storage tank).Canbe configured to work with one boiler's sensor - T2, then Δ is formed to T2, warming willbe up to maxT2.


Set boiler temperatureHeat SP

Change value Confirm

57.4 C°14:30:58

HH:MM:SS

T2

MAIN DISPLAY HeatSP

Review temperaturesof the connected sensors

30 sFAST

ONCE WARMING UP BOILER(INDEPENDENT OF ON/OFF PERIOD SET UP)

or

Button and

Set H

eatS

P

Warming up

SELECTMAIN DISPLAY

SUM

WIN

CHOICE MODE SUMMER/WINTERDuring the summer does not warm storage tank and stove pump P7

working anti- lock mode only

14:30:58

AUTOMATICMODE

4sec 14:31:02

ALL OUTPUTS ON (after 32min. going back in AUTO MODE )

4sec 14:31:06

ALL OUTPUTS OFF

4sec

(NOT going back in AUTO MODE ) alone

32 min.

7

BOILER WARMING

PUMP CONTROL P1

1 T3 < Freez→ P1 ON Below the freezing temperature of the collector circulation is launchedin order to protect the installation .

2 Т2 > maxT2 or T3 > maxT3 → P1 OFF

Above a critical temperature of the boiler circulation is stopped to avoid being overheated. Above the critical temperature of the collectorcirculation is stopped to avoid damaging the pipes

3 T3 < minT3→ P1 OFF Under minimal temperature of exchange circulation stops. Thus avoiding turn on when heat from the sun is negligible

4 T1 > SP_T1→ P1 OFF Upon reaching the setpoint of the boiler (for heating by solar collector)P1 stops.

* Not monitored if the boiler is with sensor T2 only. Then maxT2 be used for reference.

5 T3–T1>Delta+H→ P1ON

T3–T1<Delta→ P1 OFF

Upon sufficient Δ (= T3-T1) turning on heat exchange to the boiler.Case of insufficient Δ , circulation stops to not return heat from the boiler to the collector

*If the boiler is with sensor T2 only, then Δ = T3-T2

PUMP CONTROL P2 FOR SECOND SOLAR COLLECTOR (Sens4=YES)

1 T4 < Freez → P2 ON Below the freezing temperature of the collector circulation is launched.

2 Т2 > maxT2 or T4>maxT3 → P2 OFF

Above a critical temperature of the boiler or collector circulation is stopped.

3 T4 < minT3→ P2 OFF Under minimal temperature of exchange circulation stops.

4 T1 > T1_SP→ P2 OFF Upon reaching the setpoint of the boiler (for heating by solar collector)P2 stops.*Not monitored if the boiler is with sensor T2 only. Then maxT2 be used for reference.

5 T4–T1>Delta+H→ P2 ON


Upon sufficient Δ (= T4-T1) turning on heat exchange to the boiler.Case of insufficient Δ circulation stops to not return heat from the boiler to the collector


STORAGE TANK WARMING (Sens5=YES)The boiler has priority over the storage tank and pool. If according the above conditions must turn on

heat exchange to it , the following conditions are not checked. → P3 OFF

CONTROL OF P1,P2

1 T3 > maxT3 orТ3<minT3 orТ5>SP_T5 or T3–T5<Delta → P1 OFF

Case of insufficient Δ circulation stops to not return heat from thestorage tank to the collector. It also stops at reaching setpoint, risk ofoverheating pipes and under min. temperature of heat exchange.

2 T3–T5>Delta+H→ P1 ON Upon sufficient Δ (= T3-T5) turning on heat exchange to the storagetank.

3 T4 > maxT3 or Т4<minT3 or Т5>SP_T5 or

T4–T5<Delta → P2 OFF

Case of insufficient Δ circulation stops to not return heat from thestorage tank to the collector2. It also stops at reaching setpoint, risk ofoverheating pipes and under min. temperature of heat exchange.

4 T4–T5>Delta+H→ P2 ON Upon sufficient Δ (= T4-T5) turning on heat exchange to the storagetank.


CONTROL OF P3

1 P1=OFF and P2=OFF → P3OFF

P1=ON or P2=ON → P3 ON

The three-way valve is switched off when no circulation (saveselectricity)

If there is a circulation valve is switched on to guide it to thestorage tank.

POOL WARMING (Sens7=YES) The boiler and storage tank has priority over the pool. If according the above conditions must turn on

heat exchange to them , the following conditions are not checked. →P4 OFF. * Through PRIOR button can be specified pool has priority over the storage tank

CONTROL OF P1,P2 1 T3 > maxT3 or Т3<minT3 or

Т7>SP_T7 or T3–T7<Delta → P1 OFF

In cases insufficient Δ, at reaching setpoint, risk of overheatingpipes or under min. temperature of heat exchange P1 turns off.

2 T3–T7>Delta+H→ P1 ON Upon sufficient Δ (=T3–T7) turning on heat exchange to thepool .

3 T4 > maxT3 or Т4<minT3 or Т7>SP_T7 or


In cases insufficient Δ, at reaching setpoint, risk of overheatingpipes or under min. temperature of heat exchange P2 turns off.

4 T4–T7>Delta+H→ P2 ON Upon sufficient Δ (=T4–T7) turning on heat exchange to the pool .

CONTROL OF P4

1 P1=OFF and P2=OFF → P3,P4 OFFP1=ON or P2=ON→ P3,P4ON

P3 and P4 is switched off when no circulation (saveselectricity).

If there is a circulation , P3 and P4 are switched on to guide itto the pool.

RULE OF OPERATING IN SCHEME 2 , prioritized as (1-highest). Follow insequence boiler-storage tank-pool (can be specified pool has a higher priority thanstorage tank through PRIOR button ). Can be configured to work with one boiler'ssensor - T2, then Δ is formed to T2, warming will be up to maxT2.

BOILER WARMING

PUMP CONTROL P1

1 T3 < Freez→ P1 ON Below the freezing temperature of the collector circulation is launched in order to protect the installation .


Above a critical temperature of the boiler circulation is stopped to avoid being overheated. Above the critical temperature of the collector circulation is stopped to avoid damaging the pipes

3 T3 < minT3→ P1 OFF Under minimal temperature of exchange circulation stops. Thusavoiding turn on when heat from the sun is negligible

4 T1 >SP_T1→ P1 OFF Upon reaching the setpoint of the boiler P1 stops.* Not monitored if the boiler is with sensor T2 only. Then maxT2 be

used for reference.5 T3–T1>Delta+H→ P1 ON


Upon sufficient Δ (= T3-T1) turning on heat exchange to the boiler.Case of insufficient Δ circulation stops to not return heat from the boiler to the collector



STORAGE TANK WARMING (Sens5=YES)The boiler has priority over the storage tank and pool. If according to the above conditions must turn onheat exchange to it , the following conditions are not checked. → P3 OFF

CONTROL OF P31 T3 > maxT3 or Т3<minT3 or

Т5>SP_T5 or T3–T5<Delta → P2 OFF

Case of insufficient Δ circulation stops to not return heat from thestorage tank to the collector. It also stops at reaching setpoint, riskof overheating pipes and under min. temperature of heat exchange.

2 T3–T5>Delta+H→ P2 ON Upon sufficient Δ (= T3-T5) turning on heat exchange to thestorage tank.

POOL WARMING (Sens7=YES) The boiler and storage tank has priority over the pool. If according the above conditions must turn on

heat exchange to them , the following conditions are not checked. →P4 OFF. *Through PRIOR button can be specified pool has priority over the storage tank

CONTROL OF P4

1 T3 > maxT3 or Т3<minT3 or Т7>T7_SP or


In cases of insufficient Δ , reaching setpoint, risk of overheatingpipes or under min. temperature of heat exchange, the circulationstops .

2 T3–T7>Delta+H→ P1 ON Upon sufficient Δ (=T3–T7) turning on heat exchange to the pool .Note: Exit P2 is not present in Scheme 2. However, if Sens4 = YES, output is formed by Delta T4 to T1(T2, if there is not sensor T1), such as in scheme 1- PUMP CONTROL P2 FOR SECOND SOLAR COLLECTOR but, without indicating the impact on the exchange to the storage tank and pool.

RULE OF OPERATING COMMON TO SCHEMES 1 and2 THE THREE-WAY VALVE CONTROL P5 ( heat exchange from storage tank to heating system )

(Sesn5, Sens6=YES)

1 Т5 < Т6 → P5 OFF T5 > Т6+H3 → P5 ON

When the temperature of the storage tank is lower than the returntemperature , it is bypassed.

When is higher, storage tank is turned on to assist the stove .

STOVE WITH SOLID FUEL CONTROL P7

1 T8 < FrzT8→ P7 ON At freezing point of the installation, circulation is launched inorder to warming up from the boiler


Above a critical temperature of the boiler, over maxT8 (crit.temp.of pipes from the stove to boiler) pump is stopped.

3 T8 < minT8 orT1 > SP_T1 → P7 OFF

Under minimum temperature of exchange or at reach setpoint ofsolar collector/ stove heating circulation stops.

4 T8–T1>Delta+H→ P1 ON T8–T1<Delta→ P1 OFF

Upon sufficient Δ (=T8–T1) turning on heat exchange to theboiler.

In case of insufficient Δ the circulation stops.

ELECTRIC HEATER CONTROL OR OTHER SECONDARY SOURSE P6 1 Т2 > maxT2 → P6 OFF Above a critical temperature of the boiler, elecrtic heater is

turned off .2 Т2>HeatSP → P6 OFF

T2<HeatSP-H2 → P6 ONWhen switched off circulation between the boiler and solar

collector.

3 Т2>HeatSP – Toler → P6 OFFT2<HeatSP-H2-Toler →P6 ON

When switched on circulation between the boiler and solarcollector on the last is given tolerance Toler.

CIRCULATOR HEATING PUMP CONTROL P8

1 T8>minT8 → P8 ONT8<minT8 + H3 → P8 OFF

The pump switched on over minimum temperature of exchangeand switched off underneath.


8. MENU PARAMETERS

Parameters are accessed by holding the button Set, time adjustment, set periods ofelectric heater - through upper arrow.

TIME ADJUSTMENT, BOILER MODE Turn On / Off time the electric warming up of the boiler. They are designed to

Energy saving by turning off the boiler for the time that is not needed (exampleON1=5h, OFF1=22h, ON2,3,OFF2,3=“---” – the boiler will not work during the night).If it have to work constantly are set ON1≠“---”, all others =“---”. Permanent turn Off –OFF1≠“---”, all others =“---”. The setpoints (≠ от “---”) are compared with the clockand if it match then electric warming up of the boiler is activated or deactivated(priority – ON1,OFF1,ON2 …).

Name Range FactoryDefault

Action

ON1 0÷23 h; “---” 5 Time to turn on the electric warming up of the boiler.OFF1 0÷23 h; “---” “---” Time to turn off the electric warming up of the boilerON2 0÷23 h; “---” “---” Time to turn on 2

OFF2 0÷23 h; “---” “---” Time to turn off 2 ON3 0÷23 h; “---” “---” Time to turn on 3

OFF3 0÷23 h; “---” “---” Time to turn off 3 Clock adjustment

Year 0-100 YearMonth 1-12 Month

Day 1-31 DayHour 0÷23 Hour

Minut 0÷59 Minute. When confirm the minute the seconds are equated to 30 DayWk SUN, MON, TUE, WED,

THU, FRI, SATDay of week


Access to menu“PARAMETERby holding button for 5 sec.

For adjustment

60.4 C°14:30:58

MAIN DISPLAY NAME OFPARAMETER

VALUEFor exit frommenu “PARAMETERS”is holded for 3 s. orAutomatically- 5 min.after last pushingof any button

5s.

+

-

ОК

Turn ON/OFF time of boiler; Clock

SYSTEM

5 с.

11

9. SYSTEM PARAMETERSOn the menu are set the temperature to warming up of each included vessel ,

minimum temperatures to exchange of sources, the points of freezing and overheatingpipes and the temperature difference needed to turn on heat exchange.

After entering the code is available the service part of the menu for configuring thesystem. From there are set out all included in it elements, the basic scheme, the type ofused sensors and other functions.

With another password is available activating the function 'trial period' of 15 days,after which the device stops working.

The menu automatically included only parameters associated with a particularoperating configuration.Name Range Factory

DefaultAction

SP_Т1 1÷100 °C 80°C Max temperature exchange, measured by sensor T1 (if included).Boiler Setpoint for warming up by solar collector or stove .

maxT2 1÷100 °C 90°C Max temperature of sensor T2. Above it stops any heating.

maxТ3 1÷255 °C 110°C Max allowable temperature of sensors T3, Т4 – switches offcirculation through the collector to protect pipes.The maximum allowable temperature of the pipeline.

minT3 -20÷90 °C 30°C Minimum outdoor temperature of exchange (sensors T3, T4).Switches the pump off when the collector temperature falls belowthat limit. This avoids switching on when heat from the sun isnegligible.

Freez -50÷50 °C -20°C Temperature "Freeze of collector" -Switches circulation on throughthe collector to protect it from freezing at critically lowtemperatures (as used antifreeze )

Delta 1÷100 °C 5°C Temperature difference between the heat source (solar collector,stove) and heating vessel (boiler, storage tank, pool) in which heatexchange switches off.It switches on at difference Delta+H

Toler 1÷100 °C 10°C Tolerance to the solar panel from the electric heater. If is turnedcirculation on , at a temperature T2 up to Toler ° C below thesetpoint of the electric heater, boiler heating is allowed only by solarcollector, excluding electric heater. на бойлера се позволяванагряване само от сл.панел,without turn on the electric heater.

H 0 ÷10.0 °C 3.0°C Positive hysteresis when the pump controlled by Δ – outputs P1andP2

H2 0÷10.0 °C 3.0°C Negative hysteresis at heater control - output P6

H3 0÷10.0 °C 3.0°C Negative hysteresis in all other cases, except T8<minT8, T3<minT3,T4<minT4 (minimum temperatures of the exchange), T8<FrzT8, T3<Freez, T4<Freez (freezing), if positive

IF THE SYSTEM INCLUDED STORAGE TANK (Sens5=YES)SP_Т5 1÷100 °C 80°C Setpoint to warming up the storage tank

IF THE SYSTEM INCLUDED POOL (Sens7=YES)SP_Т7 1÷100 °C 35°C Setpoint to warming up the pool

IF INCLUDED STOVE / FIREPLACE (Sens8=YES)minT8 -20÷90 °C 50°C Minimum temperature of exchange measured on sensor Т8 (to not

obstruct stove heating), and a temperature of turning on P8 as well


maxТ8 1÷255 °C 110°C Max allowable temperature of sensor T8 – switches circulation off toprotect the pipes. The maximum allowable temperature of boiler-stove pipeline.

FrzT8 -50÷50 °C 1°C Freezing temperature of the stove installation - switches P7 on.

PASSWORD

Code 0-9999

12

Access Code – when properly entry passes to the next level hiddensystem and service parameters. Code OK message is seen. Wait it todisappear.To change the code must first be entered the currentpassword, to appear hidden parameters and then to entered a newcode in the parameter Code . NEW message is seen.After 4 incorrect values for 8 minutes not perceived.*There is service access code, but without the ability to changethe parameter Trial and does not appear parameter Code forchanging the access code. When entering its Code Srv message is

displayed Service code - 12

HIDDEN SYSTEM PARAMETERS

*Return to level not secret system parameters by holding the Set.

Sheme 1, 2 2 Selection of basic scheme

Sens1 YES, NO YES Does sensor T1 is used .YES- Δ is formed according to T1, the setpoint for warming up(from sunshine/stove) is SP_Т1.NO- Δ is formed according to T2, but the setpoint for warming up(from sunshine/stove) is maxT2.

Sens4 YES, NO NO Does second solar collector is used (east - west)

Sens5 YES, NO NO Does storage tank is used

Sens6 YES, NO NO Does three-way valve is used for heat exchange from storage tank toheating system.

Sens7 YES, NO NO Does pool is included

Sens8 YES, NO NO Does stove or fireplace is included

TypSn PT,NTC PT Kind of sensors : PT- PT1000 for all control points

NTC- T3 and Т4 are PT1000, all of the rest -NTC RTD

Filter 1÷100 15 Filter of measurements. A smaller value-'heavier 'filter.

FZone 1÷255 °C 20°C Zone of the filter

ZoneT (1÷255)*2 s 2с Time perception of value outside the zone

Trial Yes, NO NO Trial period – if set Trial=YES, the device will stop working after15 days. In 16 sec. be displayed 'Trial, remaining hours'.To workagain or to cancel the trial period should set Trial=NO. Available to change only with access code from the manufacturer. *The feature anti-lock pump remains active and after the trialperiod.

Point 0÷6 0 0-readings in whole degrees; 1-6 – readings in the tenth


Function “actuality of measurements”

KickON 0÷23 h;“---” 8 Activating the function (when it is expected to have a circulation).KickON=“---” - an inactive function 'actuality of measurements'

KickOF 0÷23 h;“---” 20 Deactivating the function (during the night for example) .KickOF=“---”Active around the clock function (but should KickON≠“---”).

KcPause 10÷255 min 30 Allowable pause the pumpKickTime 0÷59 sec 3 If there is not circulation through sensors Т3, T4 or Т8 for a time

KcPause, then is activated the corresponding pump for a timeKickTime.

Time05C 1÷255 sec 1 After KickTime pump is turned off and for a time Time05C monitoredfor increasing measurement of 0,5 ° C. In this case pump is turned onagain for 60 sec.

SERVICE PARAMETERS available to service professionals only

CALBR *The device is factory calibrated

Code Value of code to access the service parameters with editing rightsto the Trial Mode and Code .

FUNCTION ACTUALITY OF MEASUREMENTS

If there is not circulation through sensors Т3, T4 or Т8(WINTER) for a time KcPause,this is activated for a time KickTime. Immediately then monitors the rise in temperature(param. Time05C), In this case pump is turned on again for 60 sec.

ANTI-LOCK PUMP FUNCTION Each pump has not worked in the last 24 hours turns on for 5 sec. In 12:00 h. The

function is activated and after the trial period(Trial), if this has been activated.

OTHER FEATURES

● Function 'CHECK CONNECTED SENSORS'. In short circuit or broken chain atany of the defined (by parameters Sens N Sensor) sensors, the display shows amessage 'err N Sensor'. The device deactivates all outputs. The normal operationbe reopened max. 8 sec. after resolve the problem.

● In 16 min. screen barely noticeable flashes.

● Calibration of the measuring section. The function is intended for use only byauthorized specialist! This product was manufactured with tuned measuring part.


10. MEASURES AGAINST INTERFERATIONS

Recommendations for use of connecting wires

● It is desirable that the cable that connects the sensor to the controller is shielded. The screen must be connected to only one end of the cable to the ground bus of the power source.

● Wires that carry signals close by type, can be packed together, but if the signals are different, the wires must be separated to prevent electromagnetic interaction.

● When you have to cross the wires with different types of signals, this should be done at an angle of 90 degrees and a maximum distance.

● Wires, which carry weak signals and wires connecting the sensors to the controllershould not pass near contactors, motors, generators, transmitters and wires, whichcarry large currents.


WARRANTY CARD

Warranty № : .................................................

Guarantee period : ................................................. months

Factory number : .................................................

The article is bought by : ..................................................................

with an invoice № : ............................../...... ....... 20........ г. year

GUARANTEE CONDITIONS

The guaranty consists in free repairs of all the factory defects which can occur duringthe guarantee period. The repair is performed as in the repair base is being presentedthe current guarantee card with which the device is bought. The warranty does notrefer to issue caused by a bad transport, bad conservation, wrong exploitation, naturedisasters, not following the instructions and the cases when there is an attempt to fix anydefects by other people. In those cases the issue is being fixed only against payment.The maintenance during the guarantee period and doing the claims happens according tothe valid legislation.

PERFORMED REPAIRS IN THE SERVICE

Сервиз Дата напостъпван

е

Поръчканомер

Вид на извършения ремонт Дата напредаван

е

Извършил

ремонта

ServiceDate ofentrance

Ordernumber

Kind of the performed repair Date ofdeliverin

g

Performed therepair

Seller:................... Buyer:.................

Bulgaria, Plovdiv 4000, Mourgash str. 4Tel.: (+359 32) 642 519, 640 446 fax: (+359 32) 640 446

www.microsyst.net e-mail: [email protected]


http://www.microsyst.net/

mailto:[email protected]

solar heating systems controller sr04 · 2019-01-24 · document revision 2017/02/03 sr04 set prior...

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