Field controls CK-62 User Manual

SYSTEM CONTROL KIT

Model: CK-62

Designed for use on SWG Series Power Vent Hoods for controlling oil fired heating appliances with 120
VAC controls.

ITEMS INCLUDED IN KIT:

1) Junction box with mounted pressure switch and relay base

1) 120 VAC Relay

1) 2 Ft. Length of 1/4 inch aluminum tubing

1) 1/4 inch tubing connector

1) Flexible conduit connector

1) WMO-1 Secondary Safety Switch

1) PPC-4 Post Purge Switch

DO NOT DESTROY

THESE INSTRUCTIONS MUST REMAIN WITH EQUIPMENT

MOUNTING JUNCTION BOX

Figure 3

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-62 Junction Box and secure with fastening nut. If remote mounting the CK-62 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-62 Junction box or installer
supplied junction box onto the wall or floor joist without straining the flexible conduit. Fasten the CK-62 Junction Box
through the four dimpled locations on the base of the box. (See Figure 3)

Figure 1

OIL FIRED SECONDARY SAFETY SWITCH

Installation of a SECONDARY SAFETY SWITCH is recommended for detecting flue gas spillage from a blocked flue system
and/or inadequate draft.

1. Pierce a 5/8" diameter hole into the vent pipe near the appliance outlet. Remove one of the securing nuts from the pipe of
the safety switch. Tighten the other securing nut onto the pipe as far as possible. (See Figure 4)

2. Insert the threaded pipe end into the pierced hole, then install the securing nut, which was removed in Step 1, and tighten
securely. (See Figure 5)

3. Wire safety switch in series into one side of the burner circuit. Refer to Unit Wiring Instructions.

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.

Figure 4

Figure 2

Figure 5

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PPC-4 POST PURGE KIT

Figure 7

NOTE: All Oil Fired Appliances must have a post purge kit installed.

Installation of a POST PURGE KIT is REQUIRED for oil fired appliances for the purpose of venting combustion products
after the burner has shut down. This kit has an adjustable thermally activated sensing device that continues to vent the
flue system until the temperature drops below switch opening temperature. (See Chart A)

Pierce a ¼” diameter hole into the vent pipe and mount the POST PURGE SWITCH on the vent pipe between the
barometric draft control and the appliance using the two (2) sheet metal screws. (See Figure 6)

NOTE: Wire the switch normally open. Refer to Unit Wiring Instructions.
POST PURGE TIME ADJUSTMENT PROCEDURE

1. Remove switch cover.

2. Using a screw driver, turn the adjustment screw counterclockwise to increase purge time and clockwise to decrease
purge time. Adjust purge time until no flue gas smell is apparent after venter stops. (See Figure 7)

CHART A

Close on

rise temperature

Open on

fall temperature

Typical post purge time

should be 3 to 5 minutes

150°F to

200°F ± 15°F

95°F to

130°F ± 15°F

Figure 6

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WIRING INSTRUCTIONS

Diagram A

–

Oil Fired System: Single Unit Wiring

Wire the venter motor and controls in accordance with the National Electrical Code, manufacturer's recommendations and/or
applicable local codes. UNIT 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 I wiring or equivalent
methods.

Route the venter motor and control wiring with an appropriate wiring method. Refer to the Wiring Diagrams A through E.

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