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2-WAY ACTUATOR VALVE INSTALLATIONS
SYMPTOM
POSSIBLE CAUSE
Loud banging
Valve not installed on a horizontal pipe.
noise.
Condensate draining back against the
valve when closed, causing steam to flash
the condensate when the valve opens.
3-WAY ACTUATOR VALVE INSTALLATIONS
SYMPTOM
POSSIBLE CAUSE
Water getting
Incorrect valve port used.
hotter when the
valve closes.
Difficult to
Pump installed before any hot or cold
control water
water input ports.
temperature.
Valve does not
Pump installed before the hot water
close.
input port. Valve actuator does not
have the force to close the valve against
pump flow.
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26
HEAT-TIMER CORP.
05
TROUBLESHOOTING
RECOMMENDED ACTION(S)
Verify the valve is installed on a horizontal pipe.
Refer to the precautions listed on page 16.
Ensure no condensate will drain back against
the valve when closed.
RECOMMENDED ACTION(S)
Ensure the valve was installed using the correct
valve ports. Refer to Table 1 on page 16.
Ensure the pump is installed after the valve
discharge port.
CAUTION!
Installing the pump before the input ports
may result in pump failure or damage to
the valve when the valve is either fully open
or closed.
Refer to the precautions listed on page 16.
Ensure the pump is installed after the valve
discharge port. Refer to the precautions listed
on page 16.
059700–00 REV. B
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