Cold Shot Chillers ACWC-024-E-DR-LT-0-2 Installation, Operation And Maintenance Instructions Download

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Evaporator

Compressor

Sensing Bulb Tube

TXV

Filter/Drier

Sensing Bulb Tube

SightGlass/

Moisture

Indicator

High Pressure

Switch

Hot Gas Bypass

Valve

(Optional)

Suction Line

Service Valve/Port

Low Pressure

Switch

Flow Safety Thermostat

Liquid Line

Service Valve/Port

Head Pressure

Switch

CHILLER

(Fluid System)

Compressor

CONDENSER

Sensing Tube

Condenser

Water

OUT

Condenser

Water

Head Pressure

Control Valve

STRAINER

LIQUID

RECEIVER

Condenser Coils

Fan

Air Cooled Condenser

Water Cooled Condenser

Tandem Compressor Models only

Equalizing Tube

Suction

Accumulator*

DRAWN

ENGINEERING

ISSUED

SIZE

DETAIL

REFRIGERATION & CHILLED FLUID CIRCUIT

REV

ref.circuit

Typical Air/Water-Cooled Water Chiller (ACWC

and WCWC) Single Refrigerant Circuit System

11/12/2013

SCALE

NTS

Typical ref-circuit .vsd

SHEET

NOTES

All specifications and designs are subject to change without notice.

Hot Gas Bypass optional. For capacity and/or ambient condition use.

Temperature Controller typically monitors the tank temperature on portable models,
the entering temperature (from the process) on stationary and reverse flow models.

Flow Safety thermostat typical on indoor units or outdoors to 40F ambient, typically.

* Dependent on system design.

Additional

Fans*

Summary of Contents for ACWC-024-E-DR-LT-0-2

Page 1: ...78 281 227 8400 Fax 800 473 9175 281 227 8404 www waterchillers com INSTALLATION OPERATION AND MAINTENANCE INSTRUCTIONS ACWC 024 E RF and ACWC 240 E outdoor models shown AIR COOLED WATER CHILLERS UP T...

Page 2: ...oor use to 0 F ambient Includes low ambient fan controls Casters optional M20 Suitable for outdoor use to 20 F ambient Hot Gas Bypass and Wind Baffles may be included Casters optional 7 Electrical Pow...

Page 3: ...nd periodic maintenance requirements B INSPECTION This product has been inspected at the factory and released to the transportation agency without known damage Inspect carton s exterior for evidence o...

Page 4: ...process as possible to reduce the system piping pressure drop C MOUNTING 1 Level the unit to ensure proper oil return to compressors and fluid draining 2 When unit is in proper location secure unit t...

Page 5: ...ccessible in compliance with National Electrical Code NEC Section 440 14 b Verify electrical power on the Cold Shot Chillers label plate with actual voltage c Connect line power supply to terminal blo...

Page 6: ...of hand near the base of the compressor by the heater F FREEZE PROTECTION 1 Protection of system components from freezing is of the utmost concern Freezing can occur from the external ambient or inter...

Page 7: ...roperties of refrigerants The performance or COOLING capacity of a chiller is based on a standard set of operating conditions Changing the conditions results in different capacity rating of the chille...

Page 8: ...tank is full Ensure that the pump and evaporator are filled 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...

Page 9: ...to turn on for cooling Move the selector switch to Cooling Cycle setting and the unit will begin cooling 8 During the cooling cycle condenser fans may turn on and off due to changes in refrigerant pre...

Page 10: ...rical protection will shut down the compressor d To manually reset ASTP the compressor should be stopped and allowed to cool If the compressor is not stopped the motor will run until the motor protect...

Page 11: ...and will automatically reset when pressure is above the non adjustable reset setting See specifications for details 12 REFRIGERANT HIGH PRESSURE SAFETY HPS a Monitors the pressure of the refrigerant a...

Page 12: ...t can be setup to change automatically based on a system safety situation 21 TANK LEVEL OPTIONS a Float Valve a Located inside the tank the float valve is a mechanically float actuated valve supplied...

Page 13: ...ERIFY a System water should be clean and free of contaminants If the chiller has a reservoir check for debris or contaminants which could reduce the efficiency of your chiller If the chiller has a flo...

Page 14: ...YSTEM FOR LEAKS INSPECT AND TEST a If the system is operating and there is no indication of leaks avoid accessing the system unless necessary b Have a certified refrigeration technician check the refr...

Page 15: ...s Adjust fluid bypass valve to increase flow Do not reset unless issue has been resolved Troubleshoot the switch DO NOT BYPASS IMPORTANT This condition can occur when the fluid in the evaporator nears...

Page 16: ...on valve 3 Shortage of refrigerant due to leak 3 Repair leak and recharge 4 Overcharged system 4 Remove refrigerant adjust charge FROSTED LIQUID LINE AFTER DRIER 1 Restricted filter drier 1 Remove res...

Page 17: ...ose wires cable connections or faulty contactors Another issue may be the components themselves Troubleshoot if needed If the supply TEMPERATURE CONTROLLER ERROR 1 Temperature indication not accurate...

Page 18: ...is engaged FLASHING indicates that Controller Pre Tune mode is engaged FLASHING indicates that an alarm condition is present FLASHES in unison with Time Proportioning Primary outputs or turns ON with...

Page 19: ...detected in the input sensor or wiring opeN Normal Display Auxiliary input over range Normal Display HH Auxiliary input under range Normal Display LL Auxiliary Break Break detected in the auxiliary in...

Page 20: ...LED readout Refrigeration Components Efficient scroll compressors sight glass moisture indicators balance port expansion valves filter drier pump down valves fan cycling head pressure controls Proces...

Page 21: ...0_ 0414 doc PUOD 000 001 2 0 1 Hp 1 Motor ODP Pump with 4 75 Impeller and 0 160 Vane at 3500rpm ASP SSPC Pump Motor Assembly Exploded View If needed the pump label is located on the pump casing near...

Page 22: ...BACK VIEW DRAWN ENGINEERING ISSUED SIZE NOTES DWG NO REV A Front Right Back Drawing ACWC 24 E with Full Metal Cabinet 1 27 September 2013 SCALE 1 16 DWG INST_ACWC 24 E TypicalWithFMC _ 0613a pg1 vsd S...

Page 23: ...ssor Models only Equalizing Tube Suction Accumulator DRAWN ENGINEERING ISSUED SIZE DETAIL REFRIGERATION CHILLED FLUID CIRCUIT REV A ref circuit Typical Air Water Cooled Water Chiller ACWC and WCWC Sin...

Page 24: ...RETURN IN STRAINER Customer Process Bypass MANUAL TANK FILL TANK LEVEL SIGHT GLASS THERMOCOUPLE TO TEMPERATURE CONTROLLER Heat Exchanger Note Flow Switch typical on Low Temp Low Amb units FLOW SWITCH...

Page 25: ...PC BLK BLK BLK BLK DISCONNECT FIELD SUPPLIED BRN L3 L1 T3 T1 SC BLK RED RED VIO ORN COMPRESSOR C S R CH BLK BLK GRN YEL GND CC HERM COM FAN RED DRC 1 5 2 BLK STRIPED PR M FAN MOTOR M CHILLER PUMP ORN...

Page 26: ...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...

Page 27: ...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...

Page 28: ...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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Cold Shot Chillers ACWC-024-E-DR-LT-0-2, Installation, Operation And Maintenance Instructions

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