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Raypak RAYTHERM 0135B User Manual

Page 12

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12

Mounting

On vertical vents, the vent damper may be mounted

with the actuator in any position. On horizontal vents,

do not mount the actuator either directly above or

directly below the vent pipe; mount the vent damper

actuator to the side of the vent.

The vent damper is set up for a continuous pilot sys-

tem. If the vent damper is installed on a system with an

Intermittent Pilot, the energy savings of the vent

damper can be improved by plugging the hole in the

vent damper blade using the knockout plug provided in

the parts envelope.

Closed Position

Hole in Vent Damper Blade

Fig. 8: Vent Damper

DO NOT plug the hole if installing the vent damper on

a continuous pilot system as this will create a haz-

ardous condition.

Fig. 9: Installing The Vent Damper in Horizontal

& Vertical Vents

Fig. 10: D80D General Wiring Diagram

Install the vent damper to service only the single

appliance for which it is intended. If improperly

installed, a hazardous condition, such as an explo-

sion or carbon monoxide poisoning, could result.

Vent Damper Operation

For safe, efficient operation, the vent damper and all

flue-product-carrying areas of the appliance must be

checked annually, with particular attention given to

deterioration from corrosion or other sources.

Check vent damper operation as follows:

1. When the boiler is off, check that the vent damper

position indicator points to the closed position (see

Fig. 11).

Damper Position Indicator

Damper Open

Damper Closed

Fig. 11: Vent Damper Position Indicator

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