Hearth and Home Technologies Fan GFK21B User Manual

Installation  
Instructions  
TM  
¨
Models:  
GFK21B  
Fan Kit  
If you need clarication of any of the instructions contained here contact your dealer or the Technical Services Department  
at 1-800-927-6841.  
The Fan Kit has been designed to circulate room air through the appliance to enhance heat output. The fan kit operates on  
120VAC, 60 Hz power. This is available through a receptacle in the factory installed junction box. The junction box is located  
in the controls compartment of the appliance.  
A control module is provided with the fan kit which automatically turns the fan on and off at preset times and is equipped  
with a variable speed control to provide a quiet forced air ow at the desired speeds.  
Check Contents of Shipping Carton  
Compare contents of carton in Table 1 with the actual parts received. If any parts are missing or damaged, contact your  
dealer before starting installation. Do not install a damaged fan kit.  
Installation Precautions  
The Fan Kit is tested and safe when installed in accordance with this installation manual. It is your responsibility to read  
all instructions before starting installation and to follow these instructions carefully during installation to assure maximum  
benet from, and safe operation of the fan.  
WARNING  
WARNING  
Shock Risk  
Shock Risk  
Explosion Risk  
Fire Risk  
Do NOT wire 110-120 VAC to gas control  
valve.  
Use ONLY optional accessories approved  
for this appliance.  
Using non-listed accessories voids  
warranty.  
Using non-listed accessories may result  
in a safety hazard.  
Only Hearth & Home Technologies  
approved accessories may be used  
safely.  
Do NOT wire 110120 VAC to wall switch  
Incorrect wiring will damage millivolt  
values.  
Incorrect wiring will override IPI safety  
lockout and may cause explosion.  
Note:This appliance must be electrically wired and grounded  
in accordance with local codes or, in the absence of local  
codes, with National Electric Code ANSI/NFPA 70-latest  
edition or the Canadian Electric Code CSA C22.1.  
Fan  
1
6
2
1
1
2
1
1
Screws  
Foam Tape  
Control Module  
Electrical Cord  
Magnetic Tape  
Fan Bracket  
CAUTION  
Sharp Edges  
Wear protective gloves and safety  
glasses during installation.  
Jumper Wire (blue)  
Table 1  
Contents of Carton  
Note: An arrow (¨) found in the text signies change in  
Note: You may not need all parts included with this kit.  
content.  
Hearth & Home Technologies • GFK21B Fan Kit • 4016-096 Rev I • 11/08  
1
 
2. Remove Valve Assembly  
On a Novus 30 in. appliance (GNDC30 or GNBC30 only) the  
valve assembly must be raised slightly to allow the fan to be  
moved past it to the back of the appliance.  
FIREBOX  
BOTTOM  
FAN  
3. Install the Fan  
APPLIANCE  
BACK  
Position the fan all the way to the rear and center in the ap-  
pliance. Press the fan (magnets to the bottom) to the back of  
the appliance. See Figure 7. Plug the fan cord into the fan  
receptacle labeled “FAN” on the junction box. See Figure 8.  
4. Install the Control Module  
BOTTOM PAN  
Attach the control module to the bottom pan using the mag-  
netic tape provided.  
Figure 7  
Rotate Fan  
5. Wiring the Fan Control Module  
Note: Fan control timer only for use on units with junction  
box pictured in Figure 9.  
Fan Assembly  
Robertshaw Valve (Standing Pilot)  
Cord  
Clips  
-
Connect the black, white and red wires with 1/4 in.  
female connectors from the fan control module to the  
appliance junction box as shown in Figure 9.  
Connect the black ground wire with the ring terminal  
to the TP screw on the valve (center).  
-
-
-
Remove wall switch wire connected to valve terminal  
marked “TH”.  
Connect the black with white stripe wire with 3/16 in.  
piggyback connector from fan control module to valve  
terminal marked “TH”.  
Junction Box  
Figure 8  
Position the Fan  
-
Connect wall switch wire removed from valve terminal  
“TH” to the piggyback connector on the black with white  
stripe fan control module wire.  
Note: Thermopile must be wired as shown in Figure 9.  
Wall  
Switch  
RS  
Valve  
White  
Fan  
Control  
Module  
Red  
Black  
Figure 9  
Robertshaw Wiring Diagram  
Hearth & Home Technologies • GFK21B Fan Kit • 4016-096 Rev I • 11/08  
3
 
Dexen Valve (IPI)  
-
Connect the black, white and red wires with 1/4 in. female connectors from fan control module to appliance junction  
box as shown in Figure 10.  
-
-
-
-
Connect the black ground wire to the appliance.  
Remove the green ignition control wire from the valve.  
Connect the black with white stripe wire with 3/16 in. piggyback connector from fan control module to valve.  
Connect green ignition control wire to piggyback connector on black with white stripe fan control module wire.  
Dexen  
Valve  
White  
Fan  
Black  
Control  
Module  
Red  
Black  
Ground  
Figure 10 - Dexen (IPI) Wiring Diagram  
SIT Valve  
-
Connect the black, white and red wires with 1/4 in. female connectors from fan control module to appliance junction  
box as shown in Figure 11.  
-
-
Connect the black ground wire with the ring terminal to the TP screw on the valve (center).  
Connect blue jumper wire between fan control wire (black with white stripe) and valve. Plug 1/4 in. female end of blue  
jumper wire to the back side of valve wiring block marked TH.  
Wall  
Switch  
SIT  
Valve  
White  
Fan  
Control  
Module  
Black  
Red  
Black  
Figure 11 - SIT Wiring Diagram  
6. Recommended Fan Control Set-up Procedure  
Note: The test sequence works only during the rst (approximately) seven minutes after power-up.  
With burner and pilot extinguished:  
Turn control knob clockwise to activate control.  
Press and hold test button on the control module.  
Press and release test button.  
-
-
Fan will come on at set speed  
After one minute fan will stop.  
-
-
-
Fan will turn on.  
Adjust fan speed with control knob.  
Release test button. Fan will stop.  
Extinguish burner.  
Fan control is now fully operational and will operate  
automatically each time appliance is used.  
Operates withAPPROXIMATELY a 7-minute delay to turn  
on and a 12-minute delay to turn off.  
Light burner.  
4
Hearth & Home Technologies • GFK21B Fan Kit • 4016-096 Rev I • 11/08  
 

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