Installation, Operation and Maintenance Manual
VariCool
®
VAV
25
Subject to change without notice.
10.20-IM (0818)
ITEM CODE
PROBLEM
PROBABLE CAUSE
SOLUTION
13
System short of capacity in
free cool (water coil) mode
Check for control wiring to the free cool
solenoid valve.
Low water flow rate
Check wiring diagram and rewire.
Check source of water flow.
14
Condensate Pump does
not run
Check to see that power to the pump is
present.
Float not able to move freely.
Dirt or algae not allowing float to activate
pump.
Locate and repair electrical connection problem.
Clean pump and float.
Clean pump and float.
15
Condensate Pump runs with
no discharge
Tubing blocked or kinked
Check valve blocked
Inpeller blocked
Tubing elevation or run exceeds head
capability
Inspect, clean or straighten as necessary.
Clean check valve.
Remove debris from pump impeller.
Verify tubing run is within pump head limitations.
16
Lock out relay tripped
High or low pressure condition exists
Refer to items 8 & 10 above.
Manually turn off system at thermostat and then
back on to reset. Manually reset high pressure
switch if tripped.
Summary of Contents for VariCool VAV
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