Field controls CK-41F User Manual

SYSTEM CONTROL KIT

Model: CK-41F

ITEMS INCLUDED IN KIT:

) Junction box with mounted pressure

switch and post purge timer
) Fan control gas pressure switch
) 2 ft. length of 1/4 inch aluminum tubing
) Flexible conduit connector
) GSK-3 Spillage switch
) 1/4 inch tubing connector

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

This device MUST be installed by a qualified agency in accordance with the manufacturers installation
instructions.

The definition of a qualified agency is: any individual, firm, corporation or company which either in person or through a
representative is engaged in, and is responsible for, the installation and operation of gas appliances, who is experienced
in such work, familiar with all the precautions required, and has complied with the requirements of the authority having
jurisdiction.

DO NOT DESTROY

THESE INSTRUCTIONS MUST REMAIN WITH EQUIPMENT

2630 Airport Road · Kinston, NC 28504

Phone: [phone]· Fax: [phone]

www.fieldcontrols.com

Figure 1

Figure 2

M

OUNTING JUNCTION BOX

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

NOTE: Make sure pressure switch is in a vertical

position. The pressure switch will not sense properly in a
horizontal position.

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-41F
junction box and secure with fastening nut. If remote
mounting the CK-41F 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-41F junction box

Figure 3

or installer supplied junction box onto the wall or floor
joist without straining the flexible conduit. Fasten the
CK-41F junction box through the four dimpled
locations on the base of the box. (See Fig. 3)

P

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-41F 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-41F Junction Box, use a 1/4" OD copper, aluminum or plastic tubing and route the tubing to
avoid contact with any heat source. A maximum of 80 feet of ¼” tubing can be used with the SWG Series power venter.

Page 2

PROVING SWITCH ADJUSTMENTS

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 counter
clockwise until burner ignites. Turn the adjustment
screw an additional ¼ to ¾ 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!

T

HERMOSTAT HEAT ANTICIPATOR ADJUSTMENT

After venting kit installation and checkout, check the

Figure 4

amperage current draw through the thermostat circuit
and adjust the thermostat anticipator accordingly.

W

IRING INSTRUCTIONS

CAUTION: DISCONNECT ELECTRICAL POWER WHEN WIRING POWER VENTER,

Wire the venter motor and controls in accordance with the National Electrical Code, manufacturer's recommendations
and/or applicable local codes. UNITS MUST BE GROUNDED. Check ground circuit to make certain that the unit has been
properly grounded. The wiring should be protected by an over-current circuit device rated at 15 amperes. CAUTION must
be taken to ensure that the wiring does not come into contact with any heat source. All line voltage and safety control
circuits, between the venter and the appliance, MUST be wired in accordance with the National Electrical Code for class
one wiring or equivalent methods. Route the venter motor and control wiring with an appropriate wiring method. Refer to
Wiring Diagrams.

L

OW VOLTAGE WIRING INSTRUCTIONS FOR BOILERS AND WARM AIR FURNACES

1. With boilers, locate terminal on spark ignition module or gas valve, (if standing pilot) which would normally be 24 volts
hot on a call for heat. With spark ignition systems, this terminal could be TH-W or 24 V depending on the spark
ignition control.

2. With warm air furnaces, locate terminal W in furnace junction box.

3. Remove wire from this terminal and reroute to T1 on CK-41F.

4. With boilers, connect T3 on CK-41F to hot side of gas valve (if standing pilot) or to terminal TH-W or 24 V, if spark
ignition.

NOTE: Remember, the correct terminal is the one that would normally be hot on a call for heat.

5. With warm air furnaces, connect T3 on CK-41F to terminal W in furnace junction box.

6. Connect T2 on CK-41F to a 24 volt neutral on transformer or where convenient, or to the C terminal in the furnace fan
center.

L

INE VOLTAGE WIRING INSTRUCTIONS

1. Connect 120 volts hot power source wire to terminal L1 on CK-41F.

2. Connect 120 volts neutral power source wire and white wire from venter motor to terminal N on the CK-41F.

3. Connect black wire from venter motor to terminal M on the CK-41F.

R

EFER TO THE SWG VENTER INSTALLATION INSTRUCTIONS FOR SETTING SYSTEM AIRFLOW.

Page 3