Lennox Hearth 775 User Manual

Page 9

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Remove Cardboard

Figure 9

Step 6: REMOVE CARDBOARD - Remove the

cardboard packaging material from beneath
the relief door and discard (see Figure 9).

Wiring - Optional Forced Air Blower Kit:
BK-CI (see Figure 11 for wiring diagram) - (An
optional fi eld-provided outletbox/J-Box may
also be used). Install the blower kit according
to the installation instructions provided with
the kit.

Figure 11

Blower
Mounting
Bracket

Black

White

Fan Disc

Rheostat

Blower
Assembly
(Shown
Rotated 90
Degrees CCW)

Black

Power Cord

IMPORTANT: Ground supply wire must be
connected to the green wire attached to
the green ground screw. 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 Elec-
trical Code, ANSI/NFPA 70 - latest edition.
In Canada, the current CSA C22-1 Canadian
Electrical - latest edition.

WARNING: THE POWER CORD MUST BE
PLUGGED DIRECTLY INTO A PROPERLY
GROUNDED THREE-PRONG 120 VOLT, 60 HZ
WALL RECEPTACLE. Do not cut or remove
the grounding prong from this plug. Do
not route power cord under or in front of
appliance.

Step 7: INSTALL LP CONVERSION KIT (IF
NECESSARY) AND OPTIONAL ACCESSORIES
- Install the LP conversion kit and optional
accessories per instructions provided with
the kits (do not install an optional fi rescreen
or brick liner kit at this point).

A. Optional accessories include a wall ther-

mostat, blower kit, brick liner kit, warming
shelves and a standard or deluxe remote
control kits.

B. If a wall-mounted thermostat is selected,

mount it in a convenient location on a wall
near the stove. If the warming shelves are
being installed, see Homeowners Manual for
installation instructions.

C. Wire the thermostat within the millivolt control

circuit using a maximum of 25 feet of 18 gage,
2 conductor wire. Caution: Do not connect the
optional wall thermostat, gas control valve or
control wiring system of the unit to a 120 volt
power supply (residential line voltage)

The gas valve is set in place and pre-wired at the
factory on both models (see Figure 11).

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.

Thermopile

* ON/OFF SWITCH, OPTIONAL
THERMOSTAT

OR REMOTE

* SWITCH

CONTROL RECEIVER

Figure 10

Blower Wiring Diagram

RELIEF DOOR

The lower access
door hinges open
to access Valve
Controls

Lower Access

Door

Figure 12

Step 8: INSTALL LOWER ACCESS DOOR .

Install the lower access door by inserting the

tabs on the door sides into the corresponding
holes on the brackets on the stove bottom
(see Figure 12 below)

Step 5: REMOVE MATERIALS FROM FIRE-

BOX - Remove the packaged materials from
inside of the fi rebox and set aside (propane
conversion kit, log support cartons, log set
and embers).

Step 9: VENTING SYSTEM INSTALLATION

INSTALL VENTING COMPONENTS PER

VENT MANUFACTURERS INSTRUCTIONS

The vent system may not service multiple
appliances, and must never be connected to a
fl ue serving a solid fuel burning appliance.

CAUTION: Under no circumstances should
these appliances be vented to other rooms
or buildings. These appliances must only be
vented to the outside. Vent terminations shall
not be recessed into a wall or siding.

IMPORTANT: Do not exceed the maximum
horizontal run allowed (see Figure 13 &
14).

Support Brackets - Install vent support brack-
ets as specifi ed in the vent manufacturers
instructions and the National Gas Fuel Code,
USA - NFPA 54 / ANSI Z223.1, 7.6.5 Support
of Gas Vents. Gas vents shall be supported and
spaced in accordance with their listings and
the (vent) manufacturer instructions.

General Information: These instructions
should be used as a guideline and do not
supersede local codes in any way. Install vent
according to local codes, these instructions,
the current National Fuel Gas Code (NFPA
54 / ANSI-Z223.1) in the USA or the current
standards of CAN/CGA-B149.1 and -B149.2
in Canada.

These stoves are designed, tested and listed
for operation and installation with, and only
with, "Security Secure Vent

" or "Simpson

Dura Vent" brand Components (co-axial DV
pipe with 4" inner & 6 5/8" outer diameter).
These approved vent system components are
labeled for identifi cation. DO NOT use any other
manufacturer's vent components with these
appliances. These stoves must be vented directly
to the outside.