Wiring Diagrams; Warranty; Replacement Parts; Product Reference Information - Lennox Hearth Products MPB-33 Homeowner's Care And Operation Instructions Manual

WIRING DIAGRAMS

Wiring diagrams are provided here for reference purposes only. This information is also provided on schematics attached directly to the appliance
on a pullout panel located within the control compartment.
CAUTION: LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DAN-
GEROUS APPLIANCE OPERATION.
SIT Millivolt Wiring Diagram
If any of the original wire as supplied must be replaced,
it must be replaced with Type AWM105°C – 18 GA. wire.
BK
BK
Thermopile
WT
BK
A B
*OPTIONAL ON/OFF SWITCH,
WALL SWITCH, THERMOSTAT
OR REMOTE CONTROL RECEIVER
*TWIST WIRES "A" AND "B" TOGETHER TO OPERATE UNIT
SOLELY BY MANIPULATING THE GAS VALVE CONTROL KNOB;
OR CONNECT WIRES TO OPTIONAL ON/OFF SWITCH OR WALL
SWITCH OR THERMOSTAT OR REMOTE CONTROL RECEIVER
TO OPERATE UNIT.
Figure 19
Schematic Representation Only

WARRANTY

Your gas appliance is covered by a limited twenty
year warranty. You will fi nd a copy of the war-
ranty accompanying this manual. Please read
the warranty to be familiar with its coverage.
Retain this manual. File it with your other docu-
ments for future reference.

REPLACEMENT PARTS

A complete parts list is found at the end of
this manual. Use only parts supplied from the
manufacturer.
Normally, all parts should be ordered through
your Lennox distributor or dealer. Parts will be
shipped at prevailing prices at time of order.
When ordering repair parts, always give the
following information:
Electronic Wiring Diagram (Honeywell)
Showing the Blower Wiring for the Optional
FBK-100 and FBK-200 Kits
1. If any of the original wire as supplied must be replaced,
1. it must be replaced with Type AWM 105°C – 18 GA. wire.
2. 120V, 60Hz – Less than 3 amps.
**Leave the ON/OFF switch, which is integral
with the gas valve, in the ON position.
**ON/OFF Switch (Integral
with Gas Valve)
*OPTIONAL
Gas Valve ACCESSORY
SWITCH
PILOT
ASSEMBLY
BK
Outlet Box
Green Ground
R
Screw
BL
OPT
Red
BLOWER G
pigtail
Break Off
Black
Tab
pigtail
Junction Box
W
B
G
Hot side of Outlet
BL
W
BK BK
OPTIONAL WALL SWITCH LIMIT SWITCH
OR OPTIONAL THERMOSTAT OR
OPTIONAL REMOTE RECEIVER
*Blower speed control switch is provided in FBK200 blower kit.
Factory Wired
Figure 20
Schematic Representation Only
1. The model number of the appliance.
2. The serial number of the appliance.
3. The part number.
4. The description of the part.
5. The quantity required.
6. The installation date of the appliance.

PRODUCT REFERENCE INFORMATION

We recommend that you record the following important information about your fi replace. Please
contact your Lennox dealer for any questions or concerns. For the number of your nearest Lennox
dealer, please call 1-800-9-LENNOX. Visit us at www.Lennox.com.
Your Fireplace's Model Number ________________________________________
Your Fireplace's Serial Number ________________________________________
The Date On Which Your Fireplace Was Installed ___________________________
The Type of Gas Your Fireplace Uses ____________________________________
Your Dealer's Name ________________________________________________
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Electronic Wiring Diagram (Honeywell)
Showing the Blower Wiring for the Optional
1. If any of the original wire as supplied must be replaced,
1. it must be replaced with Type AWM 105°C – 18 GA. wire.
2. 120V, 60Hz – Less than 3 amps.
*ON/OFF Switch (Integral
with Gas Valve)
Gas Valve
BK
120
BK
W
VAC.
G
R
BL
OPT
BLOWER
White Wire
to Opposite
Side
Transf.
120 V.
Hot side of Outlet
24 V
R
W
BK
OPTIONAL ON/OFF SWITCH,
WALL SWITCH, THERMOSTAT
OR REMOTE CONTROL RECEIVER
Field Wired
Figure 21
If you encounter any problems or have any ques-
tions concerning the installation or application
of this system, please contact your distributor,
or Lennox directly:
LHP
1110 West Taft Avenue • Orange, CA 92865
FBK-250 Kits
*Leave the ON/OFF switch, which is integral
with the gas valve, in the ON position.
Outlet Box Green
Ground Screw
PILOT
G
ASSEMBLY
120
BK
VAC.
W
Optional FBK-250
Module
White Wire
To Opposite
Side
Junction Box
W
Transf.
B
120 V.
G
24 V
BL
R
BK
BK BK
LIMIT SWITCH
Factory Wired Field Wired
Schematic Representation Only
15