Hearth and Home Technologies GFK4B User Manual

TM

Installation

TM

Instructions

Models:
GFK4B

¨

Fan Kit

If you need clarifi cation of any of the instructions contained here contact your dealer or the Technical Services Department
at 1-800-927-6841.

The GFK4B 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 fl 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 GFK4B 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 benefi t from, and safe operation of, the fan.

WARNING

Shock Risk
Explosion Risk

Do NOT wire 110-120 VAC to gas control
valve.

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 El ect r i c Co d e A N S I / N FPA 70 - latest

edition or the Canadian Electric Code CSA C22.1.

CAUTION

Sharp Edges

• Wear protective gloves and safety
glasses during installation.

Note: An arrow (¨) found in the text signifi es change in
content.

WARNING

Shock Risk
Fire Risk

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.

Description Qty.

Fan 1

Screws 6

Foam Tape 2

Control Module 1

Electrical Cord 1

Magnetic Tape 2

Fan Bracket 1

Jumper Wire (blue) 1

Table 1 Contents of Carton

Note: You may not need all parts included with this kit.

Hearth & Home Technologies • GFK4B Fan Kit • 4016-095 Rev H • 11/08

1

1. Install the Air Defl ector

Open the bottom front panel by lifting and pulling it away
from the appliance. Attach the air defl ector and green ground
wire with two screws to the front of the blower output. See
Figure 1.

Air

Deflector

Figure 1 Install Air Defl ector

Note: Novus appliances do not require the use of the air

defl ector. Attach the green ground wire with the screw in
the existing hole.

• If the fan is being installed in a B-vent appliance, the fan
shield supplied with the appliance will also need to be
attached. See Figure 4.

Figure 4 Fan Shield

• If no fan shield is needed, install screws to hold the front

of the fan bracket in place. See Figure 5.

2. Install the Fan Bracket & Shield

• Place the fan bracket around the fan. See Figure 2.

Figure 2 Fan Bracket-No screws

• Install the two screws through the fan bracket into the

back of the fan housing to hold the bracket in place. See
Figure 3.

Figure 5 Fan Bracket

• Attach the foam tape (Figure 3) and magnets (Figure

6) to the fan. Cut one magnet strip in half and save the
remaining strip for control module.

Figure 3 Insert Screws

2

Figure 6 Magnets

Hearth & Home Technologies • GFK4B Fan Kit • 4016-095 Rev H • 11/08

3. Install the Fan

Position the fan all the way to the rear and center in the
appliance. 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

Attach the control module to the bottom pan using the mag­netic tape provided.

5. Wiring the Fan Control Module

FIREBOX
BOTTOM

FAN

BOTTOM PAN

Figure 7 Rotate Fan

APPLIANCE
BACK

Note: Fan control timer only for use on units with junction
box pictured in Figure 9.

• Robertshaw Valve (Standing Pilot)

- 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”.

- 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.

Fan Assembly

Cord
Clips

Junction Box

Figure 8 Position the Fan

RS

Valve

Black Ground

Figure 9 Robertshaw Wiring Diagram

TH

TP

TP

TH

Black/White

White

Red

Fan
Control
Module

Hearth & Home Technologies • GFK4B Fan Kit • 4016-095 Rev H • 11/08

Thermopile

Wall

Switch

White

Red

Black

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

Val ve

Green Wire from Ignition Control

White

Black/White

Black

Ground

Fan
Control
Module

Red

Black

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.

White

Red

Black

Wall

Switch

SIT

Valve

Ground

TH

TP

TP

TH

Black/White

Black

Red

Figure 11 - SIT Wiring Diagram

te

Whi

Fan
Control
Module

Thermopile

Blue

6. Recommended Fan Control Set-up Procedure

Note: The test sequence works only during the fi 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.

- Fan will turn on.

- Adjust fan speed with control knob.

- Release test button. Fan will stop.

• Light burner.

4

Hearth & Home Technologies • GFK4B Fan Kit • 4016-095 Rev H • 11/08

• Press and release test button.

- Fan will come on at set speed

- After one minute fan will stop.

• Extinguish burner.

• Fan control is now fully operational and will operate
automatically each time appliance is used.

• Operates with APPROXIMATELY a 7-minute delay to turn

on and a 12-minute delay to turn off.