Field controls CK-92F, CK-92FG User Manual

24 VAC SYSTEM CONTROL KIT

Model: CK-92F and CK-92FG

Designed for use with the SWG Series Power Venter for controlling Natural
Gas or L.P. Gas appliances with a 24 VAC Gas Valve and a 30-millivolt
controlled Natural or L.P. Gas Water Heater.

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TEMS INCLUDED IN KIT:

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

1) Fan control gas pressure switch with built in post purge option

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

1) 1/8" NPT x 3 inch pipe nipple

1) 1/8" NPT x 1/4 inch OD tubing elbow

1) 1/8" NPT pipe tee

1) TCA-1 Thermocouple Adaptor (CK-92F)

1) TCA-2 Left Handed Thermocouple Adaptor (CK-92FG)

1) 6 ft. length of 12-2 wire

1) 8 inch jumper wire

2) Flexible conduit connector

2) GSK-3 Spillage Switch

1) 1/4 inch tubing connector

DO NOT DESTROY

THESE INSTRUCTIONS MUST REMAIN WITH EQUIPMENT

INSTALLATION

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OUNTING JUNCTION BOX

The junction box can be mounted at the venter or remotely mounted away from the
venter. (See Figure 1 & 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 CK-92F junction
box and secure with fastening nut. If remote mounting the CK-92F 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-92F junction box or installer supplied junction box onto the wall or floor joist
without straining the flexible conduit. Fasten the CK-92F junction box through the
four dimpled locations on the base of the box. (See Figure 3)

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RESSURE SWITCH SENSING TUBE INSTALLATION

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

2. Connect the supplied 1/4" aluminum tubing to the tubing connector. Route
the tubing to the CK-92F 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-92F Junction Box, use a 1/4" OD copper, aluminum
or plastic tubing and route the tubing to avoid contact with any heat source.

Figure 1

Figure 2

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Figure 3

ADJUSTMENTS

ROVING SWITCH ADJUSTMENTS

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After proper air flow is established, the pressure switch adjustment is made by
turning the pressure switch adjustment screw clockwise (See Figure 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!

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HERMOSTAT HEAT ANTICIPATOR ADJUSTMENT

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

INSTALLATION OF GAS PRESSURE SWITCH
CAUTION: Check gas control valve pressure. Pressure MUST NOT exceed 14" WC

pressure.

1. Remove pressure tap plug in gas valve. (See Figure 5) NOTE: If installing on an
existing appliance, shut off gas supply to gas valve before plug removal.

2. Replace the pressure tap plug with the 1/8" pipe nipple and pipe tee. Install pressure
tap plug at the bottom of the pipe tee. (See Figure 6)

3. Install the gas pressure switch into the side of the pipe tee. The gas pressure switch
is supplied with a restrictor orifice in the inlet and outlet ports. With these orifices in
place, the switch does not need to be vented. This feature complies with current
ANSI standards for gas regulators. (See Figure 7).

CAUTION: If for any reason the system has shut down during operation, the cause of
the system failure should be investigated and corrected before resetting the safety
switch and restarting the system.

DRAFT HOOD SAFETY SWITCH INSTALLATION PROCEDURE
NOTE: 12 ga. wire should be used when wiring safety spillage switches, to reduce the

voltage drop in the thermocouple circuit.

1. Remove the thermocouple from the gas control valve. (See Figure 5)

2. Thread the junction block into the thermocouple port and thermocouple into the
bottom of the junction block. Connect lead wire from the junction block to the
jacketed lead wires or wire enclosed in an accepted wiring enclosure. (See Figure

8)

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

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