Field Controls Switch CK 43 User Manual

24 VAC SYSTEM CONTROL KIT  
Model: CK-43  
Tubing  
MG1 Barometric  
Draft Control  
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 Ft. Length of 1/4 inch aluminum tubing.  
1) 1/4 inch tubing connector  
1) Flexible conduit connector  
1) 4" MG1 Barometric Draft Control or 5" AF Barometric  
Draft Control  
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: 252-522-3031· Fax: 252-522-0214  
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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.  
1. Bend outward the two ears at  
the front corners of the collar.  
Bend 90 degrees, 1/4 inch  
behind the single hole on the  
straps.  
Figure 4  
2. Insert clamping screw in ears on collar and bolt the remainder of  
the collar together.  
3. Hold the collar against the side of the flue in the exact position it  
is to be installed (shown by dotted lines) and mark the outline  
of the collar on the flue.  
4. Cut a hole in the flue about 1/2" inside of this outline.  
5. Make a series of cuts about 1/2" apart from the edge of this hole  
to the outline marks.  
Figure 5  
6. Strap the collar to the flue pipe.  
7. Bend the tabs formed by the series of cuts outward against the inside of the collar to make a tight joint.  
8. Refer to Insertion of Draft Control Section.  
Page 3  
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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.  
1. Install a vent pipe reducer or increaser into the inner pipe and  
fasten using sheet metal screws. (See Figures 6 & 7)  
2. The opening of the Type B Vent Tee, at the draft control mounting  
location, should be sealed with a high temper- ature sealant or  
equivalent.  
Figure 6  
3. Refer to Insertion of Draft Control Section.  
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.  
Figure 7  
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.  
ADJUSTING THE DRAFT CONTROL WITH 5" AF  
Figure 8  
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 hori-zontal 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:  
1. The burner must be operating for at least 10 minutes to obtain  
maximum chimney draft.  
Figure 9  
2. An analysis of the flue gases is necessary to determine the  
percentage of CO2 and check for presence of CO. Refer to the appliance instructions and/or to the local  
gas company for the proper CO2 readings and 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,  
it's 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.  
Page 4  
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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 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!  
Figure 10  
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.  
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.  
Figure 11  
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.  
WIRING  
Figure 12  
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 insure that  
the wiring does not come into contact  
with any heat source. All line voltage  
and safety control circuits, between the  
Diagram A  
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 5  
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SYSTEM CONTROL CHECK OUT PROCEDURES  
1. Adjust the thermostat to call for heat and observe the power venting system for proper operation sequence  
(Repeat if necessary).  
a. Thermostat calls for heat.  
b. Relay is energized and venter motor starts.  
c. Pressure switch closes and burner starts.  
d. Thermostat is satisfied, the burner stops.  
e. This starts the post purge cycle.  
2. While system is operating disconnect power to the venter motor. This should open the pressure switch  
contacts and stop burner operation.  
TROUBLE SHOOTING HINTS  
1. Main burner does not fire when thermostat calls for heat with venter operating.  
a. Check pressure switch adjustment.  
b. Check wiring connections between pressure switch and burner. c. Check pressure switch for conti-nuity  
across terminals, during venter operation.  
2. Venter does not activate when thermostat calls for heat.  
a. Check wiring.  
b. Check relay for proper operation.  
3. Flue gas odor.  
a. Check system draft.  
b. Check for negative pressure in building.  
c. Check post purge time.  
MAINTENANCE  
1. Motor: Inspect motor once a year, the motor should rotate freely.  
2. Wheel: Inspect venter wheel annually to clear any soot, ash or coating which inhibits either rotation or air  
flow. Remove all foreign material before operating.  
3. Vent System: Inspect all vent pipe connections annually for looseness and for evidence of flue gas  
leakage. Seal or tighten pipe connections if necessary.  
Page 6  
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INSTALLATION INFORMATION  
CK-43 Control Kit  
MODEL NO.:____________________________________________________________  
INSTALLER’S NAME:_____________________________________________________  
INSTALLER’S COMPANY:_________________________________________________  
INSTALLER’S PHONE NO.:________________________________________________  
DATE OF INSTALLATION:_________________________________________________  
Page 7  
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P/N 46190700 Rev D 11/07  
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