Roberts Gorden CoRayVac CRV-B-2 Installation, Operation & Service Manual page 55

Thermostat or Internal
Sensor
Suspension Points
Decorative and
Protective Grille
(optional)
Pump
There should be no exposed wire or damage to the thermostat or sensor.
Make sure the heater is hanging securely. Look for signs of wear on the
chain or ceiling.
Contact a contractor qualified in the installation and service
of gas-fired heating equipment for repair.
Do not operate if the system is hanging insecurely
See Pages 15-16, Section 8 and Page 19, Section 8, Figure 12.
The grille must be securely attached. If the grille is loose or off, contact a
contractor qualified in the installation and service of gas-fired heating
equipment for repair.
Check that reflector extensions are installed correctly and secured in place if
necessary (decorative grille only).
See Pages 25-30, Sections 8.11, 8.12 and 8.13.
Make sure shield is installed correctly and secured in place if necessary.
(Decorative grille only.) See Page 25, Section 8, Step 8.11.2
With pump operating, check for excessive vibration or noise. Vibration is
usually a sign that the impeller is out of balance. Turn off the system, insure power
is shut off and remove the inlet plate. Check the shaft seal and replace it if worn or
missing.
With the Power off:
Check the inlet and outlet of the pump for blockage or excessive soot and clean as
necessary.
Check boots for cracking or deterioration and replace if necessary.
If a condensate trap is installed, check the condition of the trap and the drain line
attached. Note: the condensate trap should be filled with water at the beginning of
each heating season.
Check the condition of the motor mounts. Lift the motor from the rear; look for
breaks in the rubber and replace if necessary.
Check the condition and operation of the pressure switch.
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