24 VAC SYSTEM CONTROL KIT
Model: CK-43
The CK-43 is designed for use with the SWG Series Power Venter for controlling Natural Gas and L.P. Gas
Draft Induced appliances.
Control kits control the operation of SWG Power Venters. Control Kits can also control the operation of Field
Draft Inducers and Combustion Air Systems.
ITEMS INCLUDED IN KIT:
1- Junction box with mounted pressure switch and relay/timer.
1
1- 1 Ft. Length of
1
1 1- Flexible conduit connector
1- 4" MG1 Barometric Draft Control or 5" AF Barometric Draft Control
READ THESE INSTRUCTIONS CAREFULLY AND COMPLETELY BEFORE PROCEEDING WITH THE INSTALLATION.
This device MUST be installed by a qualified agency in accordance with the manufacturer's 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 HVAC appliances, who is experienced in such work, familiar with all the
precautions required, and has complied with all the requirements of the authority having jurisdiction.
⁄4" tubing connector
Please retain these instructions after installation.
⁄4" aluminum tubing.
Installed By: Phone:
www.fieldcontrols.com
Installation Date:
INSTALLATION INSTRUCTIONS
MOUNTING JUNCTION BOX
The junction box can be mounted at the venter or remotely
mounted away from the venter. (See Figure 1 & Figure 2)
Remove one of the knockouts from the side of the 1.
junction box where the pressure switch is mounted.
Install the flexible conduit connector onto the CK-43
junction box and secure with fastening nut. If remote
mounting the CK-43 junction box, mount the flexible
conduit connector onto a 2" x 4" installer supplied
junction box.
Fasten the flexible conduit from the SWG Venter into 2.
the conduit connector. Mount the CK-43 junction box
or installer supplied junction box onto the wall or
floor joist without straining the flexible conduit. Fasten
the CK-43 junction box through the four dimpled
locations on the base of the box. (See Figure 3)
PRESSURE SWITCH SENSING TUBE INSTALLATION
Attach the 1.
1
⁄4" tubing connector to the pressure tube
on the SWG Venter. (See Figure 3)
1
Connect the supplied 2.
⁄4" aluminum tubing to the
tubing connector. Route the tubing to the CK-43
junction box and connect the tubing to the pressure
switch. When routing the tubing, avoid kinking the
tubing by bending the tubing too sharply.
1
For remote mounted CK-43 Junction Box, use a
⁄4" OD
copper, aluminum or plastic tubing and route the tubing to
avoid contact with any heat source.
Figure 1
Figure 2
page 2
Figure 3
DRAFT CONTROL INSTALLATION
See Figure 4 for typical vent system layout.
CAUTION: This draft control is shipped as a single acting draft control. If the draft control is not being used on
a gas draft induced furnace, remove the gate stop on the draft control ring before installing.
COLLAR INSTALLATION
This control is shipped with a collar patterned to fit a single wall
round vent pipe. To attach this collar to the flue, see Figure 5
and follow the instructions below.
Bend outward the two ears at the front corners of the 1.
1
collar. Bend 90 degrees,
⁄4" behind the single hole on
the straps.
Insert clamping screw in ears on collar and bolt the 2.
remainder of the collar together.
Hold the collar against the side of the flue in the exact 3.
position it is to be installed (shown by dotted lines) and
mark the outline of the collar on the flue.
1
Cut a hole in the flue about 4.
Make a series of cuts about 5.
⁄2" inside of this outline.
1
⁄2" apart from the edge of this
hole to the outline marks.
Strap the collar to the flue pipe.6.
Bend the tabs formed by the series of cuts outward against the inside of the collar to make a tight joint.7.
Refer to Insertion of Draft Control Section.8.
Figure 4
Figure 5
page 3
DRAFT CONTROL INSTALLATION IN TYPE B VENT PIPE
CAUTION: DO NOT use the supplied collar when
mounting draft control to Type B Vent Pipe. Install by using
a Type B Vent Pipe Tee.
Install a vent pipe reducer or increaser into the inner 1.
pipe and fasten using sheet metal screws.
(See Figures 6 & 7)
The opening of the Type B Vent Tee, at the draft 2.
control mounting location, should be sealed with a
high temperature sealant or equivalent.
Refer to Insertion of Draft Control Section.3.
INSERTION OF DRAFT CONTROL SECTION
Insert the draft control into the collar or tee. The front face of
the control MUST be plumb and the bearing surfaces MUST
be level whether the control is on a horizontal, vertical or
sloping flue pipe. Use a spirit level and level accurately.
(See Figures 6 & 7) Secure the control in the collar by
tightening the clamping screws. If a tee is used or a collar is
supplied locally, the control may be held in place by sheet
metal screws.
ADJUSTMENTS
ADJUSTING THE DRAFT CONTROL WITH 4" MG1
The control MUST be adjusted to the desired draft setting by
adding or removing the washer-type weights supported by
the two chains on the side of the draft control. (See Figure 8)
DO NOT move the weight attached directly to the gate, this
is used only for balancing at the factory.
Figure 6
Figure 7
ADJUSTING THE DRAFT CONTROL WITH 5" AF
Vertical Flues Mounting - The control is shipped for
installation in a vertical flue. The adjustment weight should
be in the right hand slot when you face the control. See
Figure 9.
Horizontal Flues Mounting - For horizontal flues, remove the
weight from the right hand slot and attach it to the left hand
slot as shown in Figure 9.
What Draft Setting to Use - When adjusting the control, two
things are essential:
The burner must be operating for at least 10 minutes to 1.
obtain maximum chimney draft.
An analysis of the flue gases is necessary to determine 2.
the percentage of CO
and check for presence of
2
CO. Refer to the appliance instructions and/or to the
local gas company for the proper CO
readings and
2
allowable CO levels. A rule of thumb for draft setting
is between .01" to .03" of water column draft at the
appliance outlet. (Check equipment requirement.)
Changes in the adjustment of the 4" MG1 control should
be made by adding or removing the washer-like weights
(supplied with the control) to or from the weight holder chain
assembly. After the control is adjusted, its action will be
entirely automatic, the gate will open or close by itself to
correct for changes in the draft that occur in the chimney.
Figure 8
Figure 9
page 4
PROVING SWITCH ADJUSTMENTS
After proper air flow is established, the pressure
switch adjustment is made by turning pressure switch
adjustment screw clockwise (See Figure 10) until burner
operation stops. Turn the adjustment screw counter
clockwise until burner ignites. Turn the adjustment screw
1
an additional
⁄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.
POST PURGE TIMER ADJUSTMENT
To adjust the post purge time, refer to Figures 11 & 12.
Figure 10
For timer that looks like Figure 11: Rotate the timer
adjustment on the timer clockwise to increase the
operation time. To decrease the operation time, rotate the
timer adjustment counterclockwise.
For timer that looks like Figure 12: Rotate the timer
adjustment on the timer counterclockwise to increase the
operation time. To decrease the operation time, rotate
the timer adjustment clockwise.
*Typical post purge time should be between 3 to 5 min.
Figure 11
Figure 12
page 5
WIRING
CAUTION: Disconnect electrical power when wiring power venter.
NOTE: If using this control kit with an electronic thermostat you need an RJR-5 isolation relay. 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 the Wiring Diagram A.
page 6
Diagram A
SYSTEM CONTROL CHECK OUT PROCEDURES
Adjust the thermostat to call for heat and observe the power venting system for proper operation 1.
sequence (Repeat if necessary).
Thermostat calls for heat.a.
Relay is energized and venter motor starts.b.
Pressure switch closes and burner starts.c.
Thermostat is satisfied, the burner stops.d.
This starts the post purge cycle.e.
While system is operating disconnect power to the venter motor. This should open the pressure switch 2.
contacts and stop burner operation.
TROUBLE SHOOTING HINTS
Main burner does not fire when thermostat calls for heat with venter operating.1.
Check pressure switch adjustment.a.
Check wiring connections between pressure switch and burner. b.
Check pressure switch for continuity across terminals, during venter operation.c.
Venter does not activate when thermostat calls for heat.2.
Check wiring.a.
Check relay for proper operation.b.
Flue gas odor.3.
Check system draft.a.
Check for negative pressure in building.b.
Check post purge time.c.
MAINTENANCE
Motor:1. Inspect motor once a year, the motor should rotate freely.
Wheel:2. Inspect venter wheel annually to clear any soot, ash or coating which inhibits either rotation or
air flow. Remove all foreign material before operating.
Vent System:3. Inspect all vent pipe connections annually for looseness and for evidence of flue gas
leakage. Seal or tighten pipe connections if necessary.
page 7
LIMITED WARRANTY
Field Controls, LLC (“Company”) warrants that its products shall be free from defects in material and workmanship
under normal use for the limited period indicated, from the date of manufacture, subject to the provisions 1-8 below.
Eighteen (18) months
All Field Controls Products (except for those listed below as 5 years or 90 days).
Five (5) years
Field Controls Direct Vent Systems (FDVS), Field Oil Vent Kits (FOVP), and ComboVents (CV).
Field Controls warrants that the products listed below shall be free from defects in material and workmanship under
normal use for the limited period indicated, from the date of purchase by the consumer, subject to the provisions
1-8 below.
Ninety (90) days
UV lamps/bulbs
Provisions:
1. During the limited warranty period, Company, or its authorized service representative, will repair or replace, at Company’s
option, without charge, a defective Product. Product that is repaired may be repaired with new or refurbished replacement
parts. Product that is replaced may be replaced with a new or refurbished product of the same or similar design. Company
will return repaired or replacement Product to customer in working condition. Labor charges are not covered as part of the
limited warranty.
2. With regard to UV lamps/bulbs, customer shall be required to include a "valid proof of purchase" (sales receipt) identifying
the Product purchased (Product model or accurate date code information) and the date the Product(s) was purchased.
3. Product whose warranty/quality stickers, Product serial number plates or electronic serial numbers have been removed,
altered or rendered illegible shall not be covered under the limited warranty.
4. Defective Product must be returned to Company, postage prepaid.
5. IN NO EVENT SHALL COMPANY BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR SIMILAR
DAMAGES (INCLUDING, BUT NOT LIMITED TO, LOST PROFITS OR REVENUE, INABILITY TO USE PRODUCT, OR OTHER
ASSOCIATED EQUIPMENT, THE COST OF SUBSTITUTE EQUIPMENT, AND CLAIMS BY THIRD PARTIES) RESULTING FROM
THE USE OF PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the
above limitation or exclusion may not apply to you.
6. THIS WARRANTY AND REMEDIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, REMEDIES AND
CONDITIONS, WHETHER ORAL, WRITTEN, EXPRESS, STATUTORY OR IMPLIED. TO THE EXTENT PERMITTED BY LAW,
COMPANY DISCLAIMS ALL IMPLIED AND STATUTORY WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE.
7. Company makes no warranty of any kind in regard to other manufacturer’s products distributed by Company. Company will
pass on all warranties made by the manufacturer and where possible, will expedite the claim on behalf of the customer, but
ultimately, responsibility for disposition of the warranty claim lies with the manufacturer.
8. Product that has been subjected to misuse, accident, shipping or other physical damage, improper installation or application,
abnormal operation or handling, neglect, fire, water or other liquid intrusion are not covered by the warranty.
© Field Controls, LLC P/N 46190700 Rev E 12/09
Phone: 252.522.3031 • Fax: 252.522.0214
www.fieldcontrols.com
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