Step 4. Field Wiring - Lennox EBVSTNM-B Installation Instructions Manual

Figure 14
60 degrees
max.
Figure 15
Slip the first 6" (152 mm) section of B-Vent over
the fireplace flue outlet and secure with four
sheet-metal screws (# 8 or larger), and install
the remainder of the B-Vent to the outside.
Minimum overall height of the vent system and
appliance must be 10' (2.54 m) vertical - no
offset (see Figure 14); or 12' (3.7 m) when
an offset up to 60 degrees from the vertical is
used - this offset may start at the fireplace flue
collar (see Figure 15). The maximum overall
height of the vent system and appliance should
not exceed 40 feet.
Install the B-vent system in accordance with
the vent manufacturer's instructions.
CAUTION: THIS APPLIANCE CANNOT BE
VENTED HORIZONTALLY.
Note: Refer to the vent manufacturers instal-
lation instructions for variations of venting
techniques. If common venting of several units
is contemplated, it should be discussed with an
architect and the local Building Department.
Do not place insulation materials within 1" of
the gas vent system.
12

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. See
Figure 17
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
Canadian Electrical Code).
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 peu-
vent entraîner un fonctionnement inadéquat
et dangereux.
Verify proper operation after servicing.
S'assurer que l'appareil fonctionne adé-
quatement une fois l'entretien terminé.
HIGH LIMIT SWITCH
CONTROL SWITCH*
If any of the original wire as supplied must be replace, it
must be replaced with type AWM 105° C - 18 gage wire.
VERIFY PROPER OPERATION AFTER SERVICING.
Schematic Representation Only
Figure 16 - Millivolt Wiring Diagram
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Refer to Section A for millivolt appliances and
Section B for electronic appliances. The gas
valve is set in place and pre-wired at the factory
on both models.
A. Millivolt Wiring (See Figure 16)
Install Optional Control Switch (OFF/ON wall
switch or remote control receiver). Install snap
. Failure to
bushing (provided in Electrical Outlet Kit) into
control switch knock-out in side panel (see
Figures 11,12 and 18). Wire the optional
control switch within the millivolt control circuit
(as shown in Figure 16) using the 15 feet of 2
conductor wire supplied (route wires through
the snap bushing to the optional control
switch). Mount the optional control switch in a
convenient location on a wall near the fireplace.
Do not connect optional control
switch to 120 VAC power supply.
THERMOPILE
GAS CONTROL VALVE
TERMINALS
* Control Switches: Wall On/Off Switch or Timer, Unit
Mounted On/Off Switch, or Remote Control Switch. If an
optional control switch is installed, turn the appliance-
mounted ON/OFF burner control switch to the OFF position.
CAUTION