W7100G DISCHARGE WATER TEMPERATURE CONTROL
63-4046—1
10
TROUBLESHOOTING (TABLE 5)
Table 5. W7100G Troubleshooting Guide.
Problem
Possible Cause
Corrective Action
Discharge
temperature
too high.
1. Integral setpoint not at minimum position when
used with remote setpoint.
1. Set integral setpoint at minimum position when
using remote setpoint.
2. System malfunction.
2. Consult HVAC manufacturer’s equipment manual
and/or building engineering requirements.
No cooling.
1. Shorted or open discharge sensor terminals T-T1.
1. Correct the wiring.
2. Open reset terminals 6-7 interpreted as maximum
reset.
2. Jumper terminals 6-7 or connect reset
thermostat.
3. Remote setpoint terminals P-P1 open.
3. Jumper terminals P-P1 or connect remote
setpoint potentiometer.
4. System malfunction.
4. Consult HVAC manufacturer’s equipment manual
and/or building engineering requirements.
Short cycling.
1. Test plug left inserted in W7100 bottom.
1. Remove test plug.
2. System malfunction.
2. Consult HVAC manufacturer’s equipment manual
and/or building engineering requirements.
Summary of Contents for W7100
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