Water Chiller Installation
Click here
to download our installation guide We
encourage you to read the entire installation manual before
attempting to install a Rite-Temp water chiller. If you
encounter any problems or have any questions concerning the
installation process, please feel free to contact us. Our
staff of technicians are on hand to assist you during the
hours of 8:00 a.m. to 4:30 pm (Central Time), Monday through
Friday.
Our toll free support number is 800-462-3120. We may also be
reached at
Chillers@RiteTemp.com
Troubleshooting
Compressor will
not run |
a) Main switch
open. Circuit breakers open |
a) Close switch |
b) Fuse blown |
b) Check
electrical circuits and motor winding for shorts
or grounds. Investigate for possible
overloading. Replace fuse or reset
breakers after fault is corrected. |
c) Thermal
overloads tripped or fuses blown |
c) Overloads are
auto. reset. Check unit closely when
unit comes back on line. |
d) Defective
contactor or coil |
d) Repair or
replace |
e)
System shut down by safety devices |
e)
Determine type and cause of shut-down and
correct it before resetting safety switch. |
f) No cooling
required |
f) None. Wait
until unit calls for cooling |
g) Liquid line
solenoid will not open |
g) Repair or
replace coil |
h) Motor
electrical trouble |
h) Check motor
for opens, short circuit, or burnout |
i) Loose wiring |
i) Check all wire
junctions. Tighten all terminal screws |
Compressor
noisy or vibration |
a) Flooding of
refrigerant into crankcase |
a) Check setting
of expansion valve |
b) Improper
piping support on discharge coil or liquid line* |
b) Relocate, add,
or remove hangers |
c) Worn
compressor |
c) Replace |
High Discharge
Pressure |
a) Condenser
water insufficient or temperature too high |
a) Readjust water
regulating valve. Investigate ways to
increase water supply |
b) Fouled
condenser tubes (water cooled condenser).
Clogged spray nozzles (evaporative condenser).
Dirty tube and fin surface (air cooled
condenser) |
b) Clean |
c) Non-condensibles
in system |
c) Purge the non-condensibles |
d) System
overcharged with refrigerant |
d) Remove excess |
e)
Discharge shut off valve partially dosed |
e)
Open valve |
f) Condenser
undersized* |
f) Check
condenser rating tables against the operation |
g) High ambient
conditions |
g) Check
condenser rating tables against the operation |
Discharge
Pressure |
a) Faulty
condenser temperature regulation |
a) Check
condenser control operation |
b) Suction
shut-of valve partially closed |
b) Open Valve |
c) Insufficient
refrigerant in system |
c) Check for
leaks. Repair and add charge |
d) Low suction
pressure |
d) See Corrective
Steps for low suction pressure below |
e)
compressor-operating unloaded |
e)
See Correction Steps for failure of Compressor
to load up below |
f) Condenser too
large* |
f) Check
condenser rating table against the operation |
g) Low ambient
conditions* |
g) Check
condenser rating tables against the operation |
|
|
Suction
Pressure |
a) Lack of
refrigerant |
a) Check for
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 strainers |
d) Clean
strainers |
e)
Expansion valve malfunctioning |
e)
Check and reset for proper superheat.
Replace if necessary |
f) Condensing
temperature too low |
f) Check means
for regulating condensing |
g) Compressor
will not unload |
g) See Corrective
Steps for failure of compressor to unload |
h) Insufficient
water flow |
h) Adjust gpm |
Compressor
Loading - Unloading Intervals too short |
a) Erratic water
thermostat |
a) Replace |
b) Insufficient
water flow |
b) Adjust gpm |
Compressor
will not unload or load up |
a) Defective
capacity control |
a) Replace |
b) Unloader
mechanism defective |
b) Replace |
c) Faulty
thermostat stage or broken capillary tube |
c) Replace |
d) Stages not set
for application |
d) Reset
thermostat setting to fit application |
Little or no
oil pressure |
a) Clogged
suction oil strainer |
a) Clean |
b) Excessive
liquid in crankcase |
b) Check
crankcase heater. Reset expansion valve
for higher superheat. Check liquid line
solenoid valve operation. |
c) Oil
pressure gauge defective |
c) Repair or
replace. Keep valve closed except when
taking readings |
d) Low-oil
pressure safety 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 level |
h) Add oil |
i) Loose fitting
on oil lines |
i) Check and
tighten system |
j) Pump housing
gasket leaks |
j) Replace gasket |
k) Flooding of
refrigerant into crankcase |
k) Adjust thermal
expansion valve |
Compressor
loses oil |
a) lack of
refrigerant |
a) Check for
leaks and repair. Add refrigerant |
b) Velocity in
risers too low* |
b) Check riser
sizes |
c) Oil trapped in
line* |
c) Check pitch of
lines and refrigerant velocities |
d) Excessive
compression ring blow-by |
d) Replace
Compressor |
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" |
Engineered for tough duty, our
portable water chilling system is designed and built to
withstand the toughest applications. Completely
self-contained, our fully automatic, closed-loop system
offers three key features: reduction in water
usage, easy maintenance and mobility. |