NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
21
LENNOX HEARTH PRODUCTS • MONTEBELLO
®
DLX DIRECT VENT GAS FIREPLACES (MDLX40/45) • INSTALLATION INSTRUCTIONS
Figure 32
580489-01
Pilot Tube
Spark
Electrode
Flame
Sensor
IPI Pilot
885 Valve
Optional
Split Flow
BL
W
Y
Y
BR
G
O
O
R
R
B
B
G
GR
R
B
BL
WH
B
B
W
G
Battery Holder w/Switch
ON/ Remote
/OFF
Battery Holder
Wire Harness
Reset Switch
(See instructions.)
Power Vent Blower
Power Vent
Models Only
Air Pressure Switch
Power Vent Only
Note: On models
without pressure
switch, these
connectors are
plugged together.
Main Wire
Harness
Main Power Cord
Control Module
G
B
G
W
B
Fuse
ELECTRONIC WIRING DIAGRAM
Ground Y
B
Battery Holder with Switch
ON/Remote/OFF
(Schematic representation only)
COLOR CODE:
B = Black
BB = Brown w/Black Stripe
BG = Brown w/Green Stripe
BL = Blue
BR = Brown
G = Green
GY = Gray
O = Orange
R = Red
W = White
Y = Yellow
6
. Install the wall-mounted ON/OFF control, as
described in "Installing and initializing the
Remote Control System" on
Page 22
, in a
convenient location near the fireplace.
7
. After the wiring is complete, replace the
cover plate.
Step 4. FIELD WIRING
CAUTION
Ground supply lead must be con-
nected to the wire attached to the
green ground screw located on the
outlet box. Failure to do so will
result in a potential safety hazard.
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 Cana-
dian Electrical Code).
Verify proper operation after servicing.
S’assurer que l’appareil fonctionne
adéquatement une fois l’entretien
terminé.
A wiring diagram is 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 disconnec-
tion when servicing controls. Wiring errors
can cause improper and dangerous operation.
ATTENTION: Au moment de l
’
entretien des
commandes, étiquetez tous les fils avant
de les débrancher. Des erreurs de cáblage
peuvent entraîner un fonctionnement
inadéquat et dangereux.
The gas valve is set in place and pre-wired at
the factory.
Electronic Wiring
NOTE:
The electronic appliance must be
connected to the main power supply.
1
. Route a 3-wire 120Vac 60Hz 1ph power
supply to the appliance junction box.
2
. Remove the electrical inlet cover plate from
the side of the unit by removing the plate's
securing screws (
see Figure 11 on Page 10
)
.
3
. Remove the cover plate's knockout and then
feed the power supply wire through the knock-
out opening and into the unit junction box.
4
. Connect the black power supply wire to the
power outlet's
red pigtail lead and the white
power supply wire to the
common
terminal of
the outlet as shown in
Figures 32 and 33.
5
.
Connect the ground supply wire to the pig-
tail lead attached to outlet's green ground
screw.
Figure 33 -
J-BOX WIRING
J-BOX/RECEPTIACLE
WIRING
120V, 60HZ, 1PH
Factory Wired
Field Wired
Junction Box
Tab Intact
Tab
Intact
n e
e r
G -
d n
u o r
G
e t i
h
W - l
a r t
u e
N 120 VAC - Black
Green
Ground
Screw
Whit
e
Green
Neutral
Side of
Receptacle
Hot
Side of
Receptacle
Black
