chiller options - 12

II. CHILLER OPTIONS

Options for Samurai Chillers

II. CHILLER OPTIONS

1. Option List

2. Noise

3. Low Water Temperature

4. Control Systems

5. Copper Fin Condenser

6. Refrigerant Cycle

7. Water Cooler

8. Special Operation

9. Others

II. CHILLER OPTIONS

AG2 WG2 CLG2Options Options Options

Low Noise Option OSuper Low Noise Option OOutlet Temperature :0~4ºC (Low 1) O O OOutlet Temperature :-1~-5ºC (Low 2) O O OOutlet Temperature :-6~-10ºC (Low 3) O O OMagnetic Circuit Breaker O O OMagnetic Circuit Breaker for Fan OBMS Control (HARC-70CE1 /OP, HC-A32MB) O O ORemote Controller (CSC-5S, CSNET WEB) O O OPower Meter Kit for CSNET WEB O O O

Condenser Copper Fin ODischarge Valve O O StandardSuction Valve O O OCompressor Safety Valve O O ODual Compressor Safety Valve O O ODual Safety Valve O O OSuction Pressure Relief Valve X O OSuction Pipe Insulation O Standard StandardHeat Recovery O X X

MODELSpecifications

Noise

Low Water Temperature

Refrigerant Cycle

Control Systems

1. OPTION LIST

O = availableX = not available

II. CHILLER OPTIONS

1. OPTION LIST

O = availableX = not available

AG2 WG2 CLG2Options Options Options

PN16 Flange O O ODifferential Water Pressure Switch O O OWater Flow Switch (Field Installation) O O OWater Cooler Heater O O OCommon Water Pipe O O XWater Pressure Port O X XWater Strainer O O OHeat Pump Operation O XHigh Ambient Heating Operation O (RHUE)

Witness Test (I or II) O(3 cycles) O OFoundation Rubber Mats O O OAnti-vibration Springs O O OE-box Opposite Side Possitioned O X XWooden Crate X O OAll Painted Chiller OLower Guard Net OHeavy Transport ODouble packing O X XHydro kit 1 cycle X X

Others

Water Cooler

Special Operation

MODELSpecifications

II. CHILLER OPTIONS

80 dB

82 dB

low noiseAG2

Soun

d Po

wer

Lev

el

2. GENERAL2.1 Low Noise (AG2)

Compressor Chamber is insulated with Polyurethane Foam in order to achieve -2dB of noise reduction under standard levels

II. CHILLER OPTIONS

2. GENERAL2.2 Super Low Noise (AG2)

In order to achieve - 4dB of noise reduction under standard levels, Compressor Chamber is double insulated with Polyurethane Foam (II) + Ethylene Propylene Diene M-class rubber (I).

Super low noise

82 dB

AG2

78 dB

Soun

d Po

wer

Lev

el

Cooling only units: Discharge and Suction Pipes insulated (Cotton Fibbers impregnated 25% by phenol resin)

II. CHILLER OPTIONS

3. LOW WATER TEMPERATURE3.1 Working range: AG2

151050-5-10

-15

-10

-5

0

5

10

43

Ambient temperature

Chilled water outlet temperature

46

StandardSpecs

Low3

Low2

Low1

• Low 1: 4 ~ 0ºC

Standard unit is manufactured to work within the 15 ~ 5ºC water outlet range.

For lower water outlet temperature operation, “LOW” option must be requested:

• Low 2: -1 ~ -5ºC

• Low 3: -6 ~ -10ºC

II. CHILLER OPTIONS

151050-5-10

22

Condenser water outlet temperature


StandardSpecs

25

30

40

45

50

55

60

65

35

3. LOW WATER TEMPERATURE3.1 Working range: WG2

Low3

Low2

Low1

• Low 1: 4 ~ 0ºC



• Low 2: -1 ~ -5ºC

• Low 3: -6 ~ -10ºC

II. CHILLER OPTIONS

151050-5-10

30

40

45

50

55

60

Condenser temperature


65

StandardSpecs

35

22

25

3. LOW WATER TEMPERATURE3.1 Working range: CLG2

Low3

Low2

Low1

• Low 1: 4 ~ 0ºC



• Low 2: -1 ~ -5ºC

• Low 3: -6 ~ -10ºC

II. CHILLER OPTIONS

3. LOW WATER TEMPERATURE3.2 Addition of Ethylene Glycol or Propylene Glycol

WARNING!!WARNING!!

Outlet water Temp.(ºC) Required ethylene glycol (wt%) Brine freezing Temp.(ºC)

Low 1 (4 ~ 0ºC) 20 -7

Low 2 (-1 ~ -5ºC) 30 -13

Low 3 (-6 ~ -10ºC) 40 -22

To operate a chiller at water outlet temperatures under 5ºC, Ethylene Glycol or Propylene Glycol has to be added to avoid freezing of water cooler

Since water composition is changed, heat absorption capacity and viscosity also changes, so final capacity and water flow have to be recalculated

II. CHILLER OPTIONS

3. LOW WATER TEMPERATURE3.3 Unit modifications: Silicone sealant to compressor

Silicone sealant is applied to compressor terminals, bolts and pressure ports to avoid condensation and ice formation that would bring to compressor leaks

II. CHILLER OPTIONS

3. LOW WATER TEMPERATURE3.3 Unit modifications: Silicone sealant to compressor

II. CHILLER OPTIONS

3. LOW WATER TEMPERATURE3.3 Unit modifications: Low 2 / 3 Suction pipe insulation

To avoid condensation, water dripping and loss of cooling capacity, insulation is added to suction piping from compressor to cooler and from cooler to expansion valve.

(WG2 and CLG2 units have suction pipe insulation as standard)

II. CHILLER OPTIONS

3. LOW WATER TEMPERATURE3.3 Unit modifications: PCBb settings

Changes in PCBb settings are applied as follows:

II. CHILLER OPTIONS

4. CONTROL SYSTEMS4.1 Magnetic Circuit Breaker

Fuses are substituted for Magnetic Circuit Breakers for each compressor and fan motor cycle as over-current protection

II. CHILLER OPTIONS

4. CONTROL SYSTEMS4.2 Magnetic Circuit Breaker for Fans (AG2)

Fuses are substituted for Magnetic Circuit Breakers for each fan motor cycle as over-current protection

II. CHILLER OPTIONS

The following Controls can be connected

LON

MODBUS

CSNETWEBMODBUS

H-L

INK

I

H-LINK I

H-L

INK

I

H-LINK I

CHILLER

AG2 / AG2B

WG2 / CLG2

PSC-5T

CSC-5S

4. CONTROL SYSTEMS4.3 BMS & Remote controls

II. CHILLER OPTIONS

Indoor Units Table

Operation Functions Display

Building

Tree List

Configuration &

Data views

4. CONTROL SYSTEMS4.4 CS-Net Web integration

II. CHILLER OPTIONS


II. CHILLER OPTIONS

• SET-FREE

• CHILLER


II. CHILLER OPTIONS

4.5 Power Meter kit for CN-NET WEBCS-NET WEB can read power consumption with:

Using HUB we can connect:

Kit PowerMeter

4. CONTROL SYSTEMS

- Power meter connected,- Power meter interface connected to CSNET WEB

Touch Screen

Internet

II. CHILLER OPTIONS

5. COPPER FIN CONDENSER (AG2)For some special applications, e.g. saline environment, it might be necessary to use copper fins in order to avoid corrosion. In addition, main parts of the condenser are coated with anti corrosion paint.

II. CHILLER OPTIONS

• Maximum outdoor operating temperature is reduced to 41ºC.• Capacity is reduced slightly (like operating at +3ºC higher ambient).• Overall weight from the chiller is increased by the Cu-Cu option.

5. COPPER FIN CONDENSER (AG2)

II. CHILLER OPTIONS

6. REFRIGERANT CYCLE6.1 Suction and/or Discharge Valves

To be able to close the refrigerant cycle and make easy compressor maintenance, ball valves can be installed in the compressor suction and/or discharge pipes.

II. CHILLER OPTIONS

6. REFRIGERANT CYCLE6.2 Compressor Safety Valve or Dual Safety Valve

Safety Valve is added to compressor for high overpressure release.Can be a dual valve also.

II. CHILLER OPTIONS

6. REFRIGERANT CYCLE6.3 Dual Safety Valve

Two safety valves are installed in parallel at compressor discharge pipe. The 3-way valve switches to choose which of the 2 valves is in operation. This way is possible to replace one valve without having to refill refrigerant.

II. CHILLER OPTIONS

6. REFRIGERANT CYCLE6.4 Suction Pressure Relief Valve (WG2, CLG2)

An additional Safety Valve is added to suction side for high overpressure release.

II. CHILLER OPTIONS

6. REFRIGERANT CYCLE6.5 Suction Pipe Insulation

To avoid condensation, water dripping and loss of cooling capacity, suction pipe is insulated from compressor to cooler and from cooler to expansion valve. (WG2 and CLG2 units have suction pipe insulation as standard)

II. CHILLER OPTIONS

6. REFRIGERANT CYCLE6.6 Heat Recovery (AG2)

In order to recover condensing heat rejection, a Plate Heat Exchanger is added to compressor discharge pipe. This way, is possible to use discharge gas to heat up water during cooling operation:

• Can recover up to 30 ~ 35% of the cooling operation (depends of model)• It is possible to get 70ºC hot water at maximum capacity• Water pipe connection: 1” ext. Use discharge superheat

Note:Heat recovery capacity relayon the cooling demand to the unit.

II. CHILLER OPTIONS

6. REFRIGERANT CYCLE6.6 Heat Recovery (AG2)

II. CHILLER OPTIONS

7. WATER COOLER7.1 PN16 Flange

Easy to install PN16 flange with Victaulic system adapter.

II. CHILLER OPTIONS

7. WATER COOLER7.2 Differential Pressure Switch

A Differential pressure Switch is installed to detect pressure difference between water inlet and outlet. If there isn’t enough water flow it won’t let compressors to operate to avoid water freezing.

II. CHILLER OPTIONS

7. WATER COOLER7.3 Water Flow Switch

A Water Flow Switch is delivered into the E-Box for mounting at the water pipe of the unit. If there isn’t enough water flow it won’t let compressors to operate to avoid water freezing.

II. CHILLER OPTIONS

7. WATER COOLER7.4 Water Cooler Heater

To protect evaporator from freezing, an electric heater is installed at both sides to heat it up at low ambient temperatures. When the temperature falls below 2ºC is activated.

II. CHILLER OPTIONS

7. WATER COOLER7.5 Common Water Pipe (AG2, WG2)

A common pipe is installed in order to have just one water inlet and outlet on units with 2 or more plate heat exchangers.

II. CHILLER OPTIONS

7. WATER COOLER7.6 Water Pressure Port (AG2)

Inlet and outlet water pipes have connections so pressure gauges can be installed to measure inlet and outlet water pressure of each cooler.

Not compatible with:- Common Water Pipe- PN16 Flange

II. CHILLER OPTIONS

7. WATER COOLER7.7 Water Strainer

Water Strainer have to be installed always at the water inlet of the chiller. A 16 or 20 mesh (1-2 or 3-5 cycles) water strainer can be supplied as option.

II. CHILLER OPTIONS

7. WATER COOLER7.8 Stainless Steel Water Pipe

This option consists in using stainless steel (AISI 304) pipes instead of carbon steel pipes for reducing corrosion for the water pipes.

Not compatible with:- Heat Pump operation (WG2)- Common Water Pipe- PN16 Flange- DPSW- Pressure Port

II. CHILLER OPTIONS

8. SPECIAL OPERATION8.1 Heat Pump Operation (WG2)

To provide hot water from water cooled chillers, this allow to control the chiller by condenser water temperature when changing operation mode to heating.

II. CHILLER OPTIONS

Changes in PCBb settings are applied as follows:


II. CHILLER OPTIONS


There are NOT reversible cycles (no 4-way valves). Cold and warm side are kept on the same side always. When needed to heat and cool over the same heat user, hydraulic have to be designed according the necessities.

E.g.:

II. CHILLER OPTIONS

8. SPECIAL OPERATION8.2 Heating Operation in High Ambient Temperature

(RHU2E-AG2)

555030

-15

-10

-5

0

5

10

40

Ambient temperature

Heated water outlet temperature

46This enables air cooled heat pumps to operate in heating mode at high outdoor temperature.

It’s possible to heat water in summer.

454035

15,5

StandardSpecs

Heating Operation in High Ambient

Temperature

• Capacity is kept equal as to 15ºC ambient operation

• Maximum outdoor ambient operation = 40ºC

II. CHILLER OPTIONS

8. SPECIAL OPERATION8.2 Heating Operation in High Ambient Temperature

(RHU2E-AG2)

A bypass controlled by a Solenoid Valve is installed to release pressure and avoid high pressure to build up at high ambient temperature conditions.

Solenoid valve

II. CHILLER OPTIONS

9. OTHERS9.1 Witness Test (I or II)

If the customer requires, it is possible to visit the chiller at factory and even see the test of their unit at the requested conditions. Customer can verify appearance, dimensions, performance, safety devices etc.

• Witness Test I: Visual inspection before shipment and factory tour

(test already done previously)

• Witness Test II:Test performed under customer requested conditions

with the customer present

II. CHILLER OPTIONS

9. OTHERS9.2 Foundation Rubber Mats

To reduce the transmission of vibrations, a set of Anti-vibration Rubber Mats is delivered into the E-Box for mounting under the unit.

II. CHILLER OPTIONS

9. OTHERS9.3 Anti-vibration Springs

To reduce the transmission of vibrations, a set of high Anti-vibration Springs is delivered into the E-Box for mounting under the unit.

II. CHILLER OPTIONS

9. OTHERS9.4 E-Box Opposite Side Positioned (AG2)

By request, electrical box can be mounted on the opposite side of the chiller.

II. CHILLER OPTIONS

9. OTHERS9.5 Wooden Crate

By special requirement from the customer, the chiller unit is packed by wooden crate.

AG2WG2, CLG2

II. CHILLER OPTIONS

9. OTHERS9.6 All Painted Chiller (AG2)

To improve resistance against corrosion, the main parts are painted with anti corrosion paint. In case of salty or high corrosive environments, request this together with Copper Fin Condenser.

II. CHILLER OPTIONS

9. OTHERS9.6 All Painted Chiller (AG2)

II. CHILLER OPTIONS

9. OTHERS9.7 Lower Guard Net (AG2)

A set of guard nets are installed to close the open spaces at the lower parts of the chiller.

II. CHILLER OPTIONS

9. OTHERS9.8 Heavy Transport (AG2)

The chiller is modified and reinforced in order to avoid any damage during long transportation under heavy conditions.

II. CHILLER OPTIONS


Structure Reinforcement Shock Indicators

II. CHILLER OPTIONS


Structure Reinforcement

II. CHILLER OPTIONS


Guard Net Bolts

Aluminium instead of plasticSpecial non-loosen washer

II. CHILLER OPTIONS


Flexible Pipes

II. CHILLER OPTIONS

9. OTHERS9.9 Double Packing (AG2)

By special requirement from the customer, the chiller unit is packed by plastic bag twice.

II. CHILLER OPTIONS

9. OTHERS9.10 Hydro kit (AG2)

This option consist in offering a hydraulic module assembled from factory side and integrated inside the unit.

II. CHILLER OPTIONS

9. OTHERS9.10 Hydro kit: Availability

II. CHILLER OPTIONS

9. OTHERS9.10 Hydro kit: Description

Several options are offered:

1.–SP: Single Pump

2.-DP: Dual Pump

3.-ABT: with Buffer Tank

4.-SBT: without Buffer Tank

chiller options - 12

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