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Motor overload relays or circuit breakers open

 

a) Low voltage during high load conditions

 

a) Check supply voltage for excessive line drop

 

b) Defective or grounded wiring in motor or 
power circuits

 

b) Replace compressor motor

 

c) Loose power wiring

 

c) Check all connections and tighten

 

d) High condensing temperature

 

d) See Corrective Steps for high discharge pressure

 

e) Power line fault causing unbalanced voltage

 

e) Check supply voltage. Notify power company. Do not 
start until fault is corrected

 

f) High ambient temperature around the 
overload relay

 

f) Provide ventilation to reduce heat

 

g) Failure of second starter to pull in on part-
winding start system

 

 g) Repair of replace starter or time delay mechanism

 

  

Compressor thermal protector switch open

 

a) Operating beyond design conditions

 

a) Add facilities so that conditions are within allowable 
limits

 

b) Discharge valve partially shut

 

b) Open valve

 

c) Blown valve plate gasket

 

c) Replace gasket

 

  

Freeze protection opens

 

a) Thermostat set too low

 

a) Reset to 40 F or above

 

b) Low water flow

 

b) Adjust gpm.

 

c) Low suction pressure

 

c) See "Low Suction Pressure"

 

 
 
 

*

REMOTE CONDENSER MODELS 

 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for R422D

Page 1: ...rite temp INSTALLATION MAINTENANCE GUIDE WATER CHILLERS...

Page 2: ...ping guide Engineering Guide 1 for air conditioning systems 3 Water piping Chillers should be designed and installed to meet application requirements Provisions Ethylene or Propylene Glycol must be ma...

Page 3: ...this feature is standard in ALL compressors with the exception of scrolls Allow the compressor s to warm overnight or at least six hours This is a one time procedure for start up However if the main...

Page 4: ...000 1 4 1 4 1 4 1 4 3 000 3 8 3 8 3 8 3 8 4 500 1 4 1 4 3 8 3 8 4 500 3 8 3 8 1 2 1 2 6 500 1 4 1 4 3 8 3 8 6 500 3 8 1 2 1 2 1 2 8 500 1 4 3 8 3 8 3 8 8 500 3 8 1 2 1 2 5 8 12 000 3 8 3 8 3 8 1 2 12...

Page 5: ...ater pipe DO NOT plumb w ith smaller size pipe than noted on this print The bypass line is necessary if units to be cooled have self acting shut off valves Water must circulate through chiller at all...

Page 6: ...circuit or burnout i Loose wiring i Check all wire junctions Tighten all terminal screws Compressor noisy or vibrating a Flooding of refrigerant into crankcase a Check setting of expansion valve b Im...

Page 7: ...refrigerant a Check or leaks Repair and add charge b Evaporator dirty b Clean chemically c Clogged liquid line filter drier c Replace cartridge s d Clogged suction line or compressor suction gas strai...

Page 8: ...ty switch defective d Replace e Worn oil pump e Replace f Oil pump reversing gear stuck in wrong position f Reverse direction of compressor rotation g Worn bearings g Replace compressor h Low oil leve...

Page 9: ...ot start until fault is corrected f High ambient temperature around the overload relay f Provide ventilation to reduce heat g Failure of second starter to pull in on part winding start system g Repair...

Page 10: ...original Purchaser User that products manufactured by Rite Temp shall be free from defects in material and workmanship under normal use and service for a period of twelve months from date of shipment...

Page 11: ...DO NOT USE AUTOMOTIVE OR RV ANTI FREEZE RITE TEMP RECOMMENDS USING EITHER ETHYLENE GLYCOL OR PROPYLENE GLYCOL...

Page 12: ...rite temp Water Chillers Distributed By RITE TEMP MANUFACTURING INC PO BOX 1275 1704 S 1ST STREET ROGERS AR 72757 800 462 3120 PH 479 986 0727 FAX www ritetemp com...

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