HEARTH PRODUCTS
KITS AND ACCESSORIES
750,203M
REV. A, 05/2006
JUNCTION BOX KIT
INSTALLATION INSTRUCTIONS FOR JUNCTION BOX KITS FOR USE WITH UVF-36,
UVFRC-3628, UVFRC-3628-H UVFRC-4228 & UVFRC-4228-H UNIVERSAL VENTFREE FIREBOXES
KIT CONTENTS:
1 ea. Junction Box
(with electrical outlet receptacle)
1 ea. Bushing
1 ea. Cover Plate
1 ea. Screw
1 ea. Warning Label
1 ea. Instruction Sheet
MODEL
NO.
H1958
JBK
Leather gloves should be worn
during installation to prevent injury
or cuts to the hands!
Model UVF-36 Only
Firebox
floor
WHERE USED
UVF-36, UVFRC-3628,
UVFRC-3628-H, UVFRC4228 & UVFRC-4228-H
All electrical wiring must be performed by licensed Electricians.
Electrical wiring must comply with
the National Electrical Code ANSI/
NFPA 70 - latest edition.
Remove Screw
Blower
Access
Panel
IMPORTANT
Junction Box Kit
CAT.
NO.
CAUTION
Remove screw, then lift out blower access panel.
Figure 2
Lift Out Bottom Refractory Panel
Cover Plate
J-Box &
Receptacle
Main power must be off when connecting to main electrical power
supply or performing service .
Bottom
Refractory
Panel
IMPORTANT
Screw
Strain Relief Bushing
Warning Label
Figure 1 - Kit Contents
TOOLS / SUPPLIES NEEDED:
5/16" Nut Driver or Socket
Leather Gloves
Wire Stripper / Cutter
GENERAL INFORMATION
The JBK Junction Box (J-Box) Kit is designed
to be used when an optional FBK-100 or FBK200 Blower Kit is to be installed.
ALL WARNINGS, PRECAUTIONS AND INSTRUCTIONS PROVIDED IN THE INSTALLATION
AND OPERATION MANUAL PROVIDED WITH
THE APPLIANCE AND THE INSTRUCTIONS
PROVIDED WITH THE BLOWER KIT APPLY TO
THESE INSTRUCTIONS. THOROUGHLY READ
AND FOLLOW THE INSTRUCTIONS PROVIDED
WITH THE APPLIANCE AND THE BLOWER KIT
(700,032M & 750,028M) BEFORE PROCEEDING
TO THE FOLLOWING INSTRUCTIONS.
The Ground Lead must be connected
to the green screw (located on the
junction box). Failure to do this
could result in an electrical short or
shock injury.
The appliance must be electrically
grounded in accordance with local
codes or, in the absence of local
codes, the national electrical code,
ANSI/NFPA 70-(latest edition). (In
Canada, the current CSA C22-1
Canadian Electrical Code).
UVFRC-4228 & UVFRC-4228-H,
UVFRC-3628 and UVFRC-3628-H
Figure 3
Step 2. Remove the rectangular knock-out
(for J-Box) on the right side of firebox. Install
the Junction Box & Electrical outlet below the
firebox floor into the rectangular opening on
the right side cabinet panel where you removed
the knock-out (see Figures 4, 5 & 8).
Note: Pass the wires through the
hole, then squeeze the J-Box flanges
together to fit into opening.
INSTALLATION INSTRUCTIONS
Step 1. Follow the instructions below for the
model you are installing:
Model UVF-36:
Using a screwdriver remove the screw
from the blower access panel as shown in
Figure 2. Slide the panel to the right until
the flange clears the opening. Remove
the panel and set aside.
Models UVFRC-3628, UVFRC-3628-H, UVFRC-4228 & UVFRC-4228-H:
Lift out the bottom refractory panel (see
Figure 3).
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Firebox
floor
J-Box & Electrical Outlet
J-Box Flange
Install into side wall rectang ular opening
Model UVFRC-4228 Shown
Figure 4
1
J-Box Flanges
Right Outside Cabinet Panel
J-Box &
Electrical
Outlet
Wires
Feed the *Romex wires (or other equivalent
plastic insulated wire - Refer ANSI/NFPA 70
- National Electrical Code - Latest Edition)
through the J-Box Cover retangular opening, then connect to the J-box wires. The
strain relief bushing should be pressed into
the knock-out on the J-box cover around
the Romex (this will provide protection to
the wires and prevents strain against connections from J-box). See Wiring Diagram
- Figure 9. Install the cover plate over the
J-Box opening on appliance as shown in
Figure 7.
Junction Box
Blower
Warning Label - Apply on bottom
of the cabinet in front of blower.
Top View of Firebox
Figure 8
* Romex is a plastic insulated wire from
power supply - sometimes called non-metallic
sheath.
Figure 5
Step 3. Route a 3-wire, 120 VAC, 60 Hz, 1 ph
power supply to the right side of appliance per
the instructions provided in blower kit and the
installation & operation manual and per National
Electrical Code ANSI/ NFPA 70 - latest edition.
(strain relief bushing
presses into this hole
around romex wires
- see Step 5).
* Wall-mounted ON/
OFF Blower Switch
or Variable Speed
Control Switch.
J-Box opening
on appliance
HOT SIDE OF
RECEPTACLE
Cover Plate
Remove knock-out
120V, 60HZ,
1PH BLOWER
CONTROL CIRCUIT
WIRING
Right Side Panel of Firebox
Step 4. Locate the J-Box cover (provided). Remove the round knock-out (see Figure 6).
Cover Plate
120 VAC Black
Ground - Green
Neutral - White
Note: Wire connections should be positioned inside of the appliance.
Screw
Black
The notched side of
cover plates goes inside
firebox panel
NEUTRAL
SIDE OF
RECEPTACLE
Use screw provided and
secure in place as shown
Figure 7 - Installing J-box Cover Plate - All Models
Tab
Intact
Junction
Box
Plug blower
into this
receptacle
Step 6. Apply the Warning Label provided to the
bottom of the cabinet as shown in Figure 8.
Green
Ground
Screw
Field Wired
Figure 6 - Junction Box Cover Plate
Step 5. Ensure that power supply wires are
NOT "live" before making these connections).
Install J-Box Cover Plate as follows:
Step 7. After the electical connections and blower
installation have been completed per the instructions provided with kit and in the installation and
operation manual follow the instructions below
for the model you are installing:
Model UVF-36 : Reinstall the blower access
panel that was removed on Step 1 (see Figure
2).
Models UVFRC-3628 and UVFRC-3628-H, UVFRC4228 & UVFRC-4228-H: Reinstall the bottom
refractory panel that was removed on Step 1
(see Figure 3).
Factory Wired
Blower
Ground
*An ON/OFF Wall Switch is used with the FBK-100 kit
(field provided or sold separately - order P/N 85L87); A
Variable Speed Control (provided) is used with the FBK200 kit. The installation of these kits also require a
Junction Box / Electrical Kit, not included. See Page
13 for ordering information.
Note: If any of the original wire as supplied must be
replaced, it must be replaced with type AWM 105
degree C - 14 gage wire.
Figure 9
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LHP reserves the right to make changes at any time, without notice, in design, materials, specifications, prices and the discontinuance of colors, styles and products. Consult your local
distributor for fireplace code information.
LHP
Printed in U.S.A. © 2006 by LHP
2
P/N 750,203M REV. A 05/2006
1110 West Taft Avenue
Orange, CA 92865