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SHEET #:

3

SHEET:

Option: System ON-OFF

REF DATE:

February 2, 2016

DESCRIPTION

Options for Series A Control System

Standard setup and typical variations 

shown or noted.

FILE: 

DWG_Electrical-DeltaControl-SeriesA122_020216.vsd

GENERAL NOTES

1. Circuit breaker(s) may be used in place of fuse(s).

2. WARNING-For continued protection against fire hazard replace fuses with the same type and rating only.

3. Unit must be permanently grounded and conform to N.E.C. & local codes.

4. Use copper conductors for field-wiring.  Class 1, unless noted.  All wire based on 105°C insulation wire, minimum.

5. Wire colors shown may differ from actual unit.

6. Drawing line item reference identification:

- Number in parenthesis near output is location of controlled items.  First number is sheet #, second & third are line#.

- No underline indicates normally open (NO) contact,  Underline indicates normally closed (NC) contact.

7. All intellectual property, including designs and programming logic are the property of Cold Shot Chillers and is not to be 

copied or used without permission from Cold Shot Chillers.

8. Design, specifications, and components are subject to change without notice.

9. Options and alternate design and components may exist and are typically dependent on design and specific parts used 

for the system.

LINE LEGEND

FACTORY SUPPLIED/INSTALLED

DETAILS

FACTORY OPTION

FIELD SUPPLIED/INSTALLED

TERMINAL BLOCK CONTACT #

#

09

10

11

LINE#

12

13

14

15

16

17

18

01

02

03

04

05

06

07

08

COMPONENT CODES

AUX

Auxiliary (contact block)

BZ

Buzzer

CC#

Compressor Contactor 1 or 2

CCH

Crankcase Heater

COM

Common

CR#

Control Relay:

CR1

CR for Cooling Mode Status

CR2

CR for Active Cooling On

CR3

CR for Chiller Pump functions

CR4

CR for Process Pump functions

CR5

CR for Remote ON/OFF Operation

CR6

CR for Tank Level Control

DB

Distribution Block

DT

Digital Temperature Controller

F

Fuse

F1/F2

Fuse 1 and 2 (Transformer Primary)

F3

Fuse 3 (120VAC Control Voltage)

F4

Fuse 4 (24VAC Control Voltage)

FC

Fan Contactor

FPS

Fan-Cycling Pressure Switch

FST

Flow Safety Thermostat

FZT

Freeze Safety Thermostat

GND

Ground

HG

Hot Gas

HPS

High Pressure Switch

L

Line

LAR

Low Ambient Relay

LAT

Low Ambient Thermostat

LFS

Liquid Flow Switch

LPS

Low Pressure Switch

LT1

Light 1 for Cooling Status – OK

LT2

Light 2 for Cooling Status – Fault Condition

M

Motor

MS

Motor Starter

NC

Normally Closed

NO

Normally Open

PC1

Pump Contactor 1 (Chiller Pump)

PC2

Pump Contactor 2 (Process Pump)

PLC

Programmable Logic Controller

PM

Phase/Voltage Monitor

PS

Power Supply

RC

Run Capacitor

SW1

Selector Switch (Pump/Off/Cooling)

SW2

Selector Switch (Process Pump)

SW3

Local/Remote Switch

TB

Terminal Block

TC

Thermocouple (Type J only)

TLH

Tank Level Switch – High

TLL

Tank Level Switch – Low

TLM

Tank Level Switch – Mid

TRAN

Transformer

STANDARD OPTION:  RS

Remote System ON/OFF Control

(Start/Stop Chiller System using Internal 24VDC via Terminal Blocks to Remote Dry Contacts)

CR5

CR5

Switch or Contact

Factory Supplied (with temporary jumper)

Example 1 (Remove Jumper and 

connect to external dry contact)

Remote ON/OFF Relay

 (Voltage Specific, standard 24VAC)

(Factory Mounted Internally, Operated 

Remotely)

Remote ON/OFF Relay (CR5) NO Contact

(Factory wiring to terminals)

OPTION:  RS-VE

Remote System ON/OFF Control

with External Supplied Control Voltage

1

2

33

32

OPTION CODE VARIATIONS

RS

Remote System ON/OFF Control with internal supplied 24VDC (requiring Dry Contacts)

RS-V

Remote System ON/OFF Control with internal supplied 24VAC

RS-V-6

Remote System ON/OFF Control with internal supplied 120VAC

RS-VE

Remote System ON/OFF Control with 

external 

supplied 24VAC

RS-VE-6

Remote System ON/OFF Control with 

external 

supplied 120VAC

External Control 

Circuit 

Voltage

CR5

CR5

Remote ON/OFF Relay

 (Voltage Specific, standard 24VAC)

(Factory Mounted Internally, Operated 

Remotely)

Remote ON/OFF Relay (CR5) NO Contact

(Factory wiring to terminals)

OPTION:  RS-V

Remote System ON/OFF Control

(Start/Stop Chiller System using Internal 24VAC via Terminal Blocks to Remote Dry Contacts)

1

2

16

6

NOTES

USE:  To provide low control voltage to a remote location control circuit dry set of contacts to permit 

start and stop the Chiller system function.  Chiller Pump function is to pump fluid through the 

evaporator of the chiller.

METHOD:  Designated numbered terminal blocks requiring specific voltage supplied from external 

source, Class 2 wiring capable.  Voltage depends on control relay (CR5) voltage.  Standard 

voltage of relay is 24VAC, unless specified differently prior to order.

1.  Voltage to terminals for ON

2.  No Voltage to terminals for OFF

3.  SW1 on chiller must be in the appropriate position

Interconnections are field supplied and installed.

Temporary Jumper to be removed prior to operation (“J1 “Tag typically attached to jumper wire)

Note on chiller to state that prior to servicing, the selector switch (SW1) must be in the OFF position to 

prevent remote operation.  Unit could start at any time.

System will have multiple power sources.

External Control 

Circuit 

Contact

0VAC

CONTROL 

VOLTAGE

NOTES

USE:  To provide low control voltage to a remote location control circuit dry set of contacts to permit 

start and stop the Chiller system function.  Chiller operation dependent on position of system 

selector switch (SW1).

METHOD:  Designated numbered terminal blocks providing 24VDC (Class 1) voltage to the system 

selector switch SW1.  Position of SW1 determines mode to start and stop.

1.  Contacts must Close for ON

2.  Contacts Open for OFF

3.  SW1 on chiller must be in the appropriate position

Interconnections are field supplied and installed.

Switch may be Factory or Field supplied.

Temporary Jumper to be removed prior to operation (“J1” Tag typically attached to jumper wire)

Note on chiller to state that prior to servicing, the selector switch (SW1) must be in the OFF position to 

prevent remote operation.  Unit could start at any time.

NOTES

USE:  To provide internal control voltage to a remote location control circuit dry set of contacts to permit 

start and stop the Chiller system function.  Chiller operation dependent on position of system 

selector switch (SW1).

METHOD:  Designated numbered terminal blocks providing 24VAC (Class 1) provide voltage to the 

system selector switch SW1.

1.  Contacts Close for ON

2.  Contacts Open for OFF

3.  SW1 on chiller must be in the appropriate position

Interconnections are field supplied and installed.

Switch may be Factory or Field supplied.

Temporary Jumper to be removed prior to operation (“J1 “Tag typically attached to jumper wire)

Note on chiller to state that prior to servicing, the selector switch (SW1) must be in the OFF position to 

prevent remote operation.  Unit could start at any time.

Jumper

2

1

Содержание ACWC-180-EM-DR-LT-0-5

Страница 1: ...Houston Texas 77032 Phone 800 473 9178 281 227 8400 Fax 800 473 9175 281 227 8404 www waterchillers com INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS ACWC 240 E model shown AIR COOLED WATER CHI...

Страница 2: ...ient fan control Casters optional d M20 Suitable for outdoor use to 20 F ambient Hot Gas Bypass and or Wind Baffles may be included Casters optional 7 Electrical Power See specification sheet Variatio...

Страница 3: ...has been inspected at the factory and released to the transportation agency without known damage Inspect carton s exterior for evidence of rough handling in shipment Carefully remove protective wrap...

Страница 4: ...unit to ensure proper oil return to compressors and fluid draining 2 When unit is in proper location secure unit to foundation or on vibration isolators as needed required by local requirements Fasten...

Страница 5: ...efrigerant Charge E ELECTRICAL POWER AND CONNECTIONS1 1 POWER SUPPLY Field wiring must comply with national and local codes a Install a branch circuit fused disconnect of adequate size to handle start...

Страница 6: ...ezing can occur from the external ambient or internal system temperatures 2 INTERNAL The evaporator or other heat exchanger is the primary component that is susceptible to freezing even during normal...

Страница 7: ...rating of the chiller 2 Some conditions are a Ambient conditions for air cooled systems b Condenser fluid for water cooled systems c Type of fluid being chilled d Design and setup of the chiller e Lea...

Страница 8: ...illed with fluid prior to starting e Systems with an open tank are typically capable of bleeding excess air that is returned to the tank when the system is operating Piping in and out are typically be...

Страница 9: ...LED readout which is an indication of the current temperature of the fluid in the chiller tank or Leaving Fluid Temperature depending on the specific chiller design 8 COOLING CYCLE Unit is now ready t...

Страница 10: ...F At this temperature an internal bi metal disk valve opens and causes the scroll elements to separate which stops compression Suction and discharge pressures balance while the motor continues to run...

Страница 11: ...SAFETY LPS a Monitors the pressure of the refrigerant suction line and will automatically open when the pressure drops below the set point and will automatically reset when pressure is above the non a...

Страница 12: ...ted valves similar to MCSO however it can be setup to change automatically based on a system safety situation 23 TANK LEVEL OPTIONS a Float Valve a Located inside the tank the float valve is a mechani...

Страница 13: ...with wire brush and or abrasive clothes and then the surface can be recoated to reduce future corrosion For severe environments use a durable epoxy paint that can create an oxygen barrier c Fasteners...

Страница 14: ...ecome jagged or splattered to avoid premature compressor and or pump failure Contactor points are consumable and their life is dependent on the amount of use and power characteristics at the unit 11 R...

Страница 15: ...t unless issue has been resolved Troubleshoot the switch DO NOT BYPASS IMPORTANT This condition can occur when the fluid in the evaporator nears freezing 9 Flow Switch Tripped switch open 9 Determine...

Страница 16: ...leak and recharge 4 Overcharged system 4 Remove refrigerant adjust charge FROSTED LIQUID LINE AFTER DRIER 1 Restricted filter drier 1 Remove restriction or replace COMPRESSOR WILL NOT LOAD UNLOAD HOT...

Страница 17: ...ply TEMPERATURE CONTROLLER ERROR 1 Temperature indication not accurate 1 Verify temperature sensor is in good condition and mounted properly Adjust the offset Typically it is only adjusted a few degre...

Страница 18: ...hnical Specification C Physical Installation Drawings D Electrical Drawings E Component Technical Pump options etc when available F Parts Warranty G Labor Warranty if included H Startup Checklist MNL_...

Страница 19: ...r starter or overload or the Tank Level is above the low level if included 2 Any issues with these items will result in a fault There is an initial delay bypassing the flow switch to permit flow to st...

Страница 20: ...switch is turned off or a fault occurs DISPLAYS Power ON typical Only at startup Normal display PV b190 DTB series Firmware V1 90 PV 51 3 Present Value SV r r Output type Relay and Relay SV 50 0 Set...

Страница 21: ...ow 9600 Leaving Fluid Temperature Too Low Freeze Thermostat is open 9700 Either 1 Pump Safety Circuit has tripped or 2 Low Tank Level at Start 9710 Either 1 Pump Safety circuit was tripped or 2 Low Ta...

Страница 22: ...d Rate 9600 LEN Communication Data Length 8 Prty Communication Parity Bit Even StoP Communication Stop Bit 1 Value Set Codes Code Description B ACTUAL SETTINGS r S Operation Mode rUn SP Decimal point...

Страница 23: ...PT LIFS 000 100 0 1 2730 Maximilian Drive Houston Texas 77032 Phone 800 473 9178 281 227 8400 Fax 800 473 9175 281 227 8404 www waterchillers com Liquid Flow Switch...

Страница 24: ...S Fan Cycling Pressure Switch FST Flow Safety Thermostat FZT Freeze Safety Thermostat GND Ground HG Hot Gas HPS High Pressure Switch L Line LAR Low Ambient Relay LAT Low Ambient Thermostat LFS Liquid...

Страница 25: ...in a location away from sources of excessive heat and within the specified ambient operating conditions See Technical Specifications for ambient operating conditions IMPORTANT Use this P266 Single Ph...

Страница 26: ...ctronic Pressure Transducer 0 to 52 bar 0 to 754 psi total range with a 1 4 in SAE Female Flare connection and a 2 meter 3 1 ft cable P266xxx x Product P266xxx x Single Phase Condenser Fan Speed Contr...

Страница 27: ...alves filter drier pump down valves fan cycling head pressure controls Process Fluid Components Bronze Y strainer with 20 mesh stainless steel screen Pumps are stainless steel centrifugal Tanks are in...

Страница 28: ...0 0_ 0414 doc PUOD 240 003 0 0 3 Hp 3 Motor ODP Pump with 5 5 Impeller and 0 250 Vane at 3500rpm ASP SSPC Pump Motor Assembly Exploded View If needed the pump label is located on the pump casing near...

Страница 29: ...orts Condensing Area Access Panel Line Voltage Temperature Controller Control Panel PUMP COOL OFF Power Switch High Pressure Reset NOTES Unit should be installed with at least 4 clearance on all sides...

Страница 30: ...it System 2 3 5 2015 SCALE NTS DWG_RefrigerantCircuit Ref Chw ACWC SingleCircuit Typical_0215 vsd SHEET 1 NOTES All specifications and designs are subject to change without notice Hot Gas Bypass optio...

Страница 31: ...SHEET 2 CHILLER PUMP WATER SUPPLY OUT MANUAL BYPASS STAINLESS STEEL TANK WITH SHOE BOX LID WATER RETURN IN DRAIN STAINLESS STEEL COPPER BRAZED PLATE EVAPORATOR TEMPERATURE SENSOR Temperature Controlle...

Страница 32: ...mp PLC Programmable Logic Controller PS Power Supply RC Run Capacitor SW1 Selector Switch Pump Off Cooling SW2 Selector Switch Process Pump SW3 Local Remote Switch TB1 Terminal Block 1 for Internal TB...

Страница 33: ...PLC INPUTS PLC OUTPUTS RED BLK TRAN1 PS 24VDC HPS VIO GRA YLW X1 X0 X2 S S WHT SW1 1 SW1 2 BRN BLU ORN GRN X3 X4 X5 X7 X6 BLK BLK PAGE NOTES 1 Control transformers must be wired tapped for the approp...

Страница 34: ...ontrol with External Supplied Control Voltage 1 2 33 32 OPTION CODE VARIATIONS RS Remote System ON OFF Control with internal supplied 24VDC requiring Dry Contacts RS V Remote System ON OFF Control wit...

Страница 35: ...Notes...

Страница 36: ...MAINTENANCE RECORD DATE PROCEDURE PERFORMED...

Страница 37: ...ll piping is connected properly as appropriate Yes No 12 All chilled water valves are open as appropriate Yes No 13 Crankcase heaters energized for 24 hours before start up Yes No 14 Outdoor piping wr...

Страница 38: ...__________________________________________________________________ __________________________________________________________________________________________________ __________________________________...

Страница 39: ...ight charges to ship these parts EXCLUSIONS The foregoing provisions state the exclusive remedy for any breach of warranty or any other claim in respect to the product described on the reverse side of...

Страница 40: ...s that are not manufacturing defects and are therefore not included in this Limited Warranty 1 Damage to unit or unsatisfactory operation due to improper cleaning or use of unit in corrosive atmospher...

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