Field controls CK-40F User Manual

P/N 46334900

INSTALLATION INSTRUCTIONS

Designed for use with the SWG Series Power Venter for controlling Natural Gas or L.P. Gas
appliances.

Items included in Kit:

1) Junction box with mounted pressure switch and post purge timer

1) Fan control gas pressure switch

1) 2 ft. length of 1/4 inch aluminum tubing

2) Flexible conduit connector

1) 1/4 inch tubing connector

MOUNTING JUNCTION BOX:

The junction box can be mounted at the venter or remotely mounted away from the venter. (See Fig. 1
& Fig. 2)

Figure 2

1. Remove one of the knockouts from the side of the
junction box where the pressure switch is mounted.
Install the flexible conduit connector onto the CK­40F junction box and secure with fastening nut. If
remote mounting the CK-40F junction box, mount
the flexible conduit connector onto a 2" x 4"
installer supplied junction box.

2. Fasten the flexible conduit from the SWG Venter
into the conduit connector. Mount the CK-40F
junction box or installer supplied junction box onto
the wall or floor joist without straining the flexible
conduit. Fasten the CK-40F junction box through
the four dimpled locations on the base of the box.
(See Fig. 3)

Figure 1

Figure 3

PRESSURE SWITCH SENSING TUBE INSTALLATION:

1. Attach the 1/4 inch tubing connector to the pressure tube on the SWG Venter. (See Fig. 3)

2. Connect the supplied 1/4" aluminum tubing to the tubing connector. Route the tubing to the CK­40F junction box and connect the tubing to the pressure switch. When routing the tubing, avoid
kinking the tubing by bending the tubing too sharply.

For remote mounted CK-40F Junction Box, use a 1/4" OD copper, aluminum or plastic tubing and
route the tubing to avoid contact with any heat source.

PROVING SWITCH ADJUSTMENTS:

After proper air flow is established, the pressure switch

Figure 4

adjustment is made by turning the pressure switch
adjustment screw clockwise (See Fig. 4) until burner
operation stops. Turn the adjustment screw
counterclockwise until burner ignites. Turn the adjustment
screw an additional 1/4 to 3/4 turn counterclockwise to
ensure adequate switch adjustment.

Warning: Failure to properly adjust the pressure switch
as specified above could lead to improper operation of
the pressure switch which will result in a hazardous
condition and bodily harm!

THERMOSTAT HEAT ANTICIPATOR ADJUSTMENT:

After venting kit installation and checkout, check the amperage current draw through the thermostat
circuit and adjust the thermostat anticipator accordingly.

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