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Step 4. Install the Vent System & Exterior
Termination -
In the United States, vent installation must
conform with local building codes. In the
absence of local codes, vents must be in-
stalled in accordance with the current edition
of the National Fuel Gas Code (ANSI-Z223.1).
In Canada, vent installation must conform
with local building codes. In the absence of
local codes, vents must be installed in accor-
dance with the current edition of the National
Standard of Canada CAN/CGA-B149.1 or
B149.2 Installation Code.
B-500, and B-600 series fireplaces: These
models must be vertically vented using listed
5 in. (127 mm) type-B, double-walled vent
pipe and a listed vent termination.
B-800 series fireplaces: These models must
be vertically vented using listed 6 in. (152 mm)
type-B, double-walled vent pipe and a listed
vent termination.
f i r e - p a r t s . c o m
A - Connect a 5 in. (127) mm or 6 in. (152
mm) (depending on model; see statements
above ) Type B vent system to the fireplace
flue collar with three sheet metal screws (No.
8 or larger ). See Figure 13. Then install the
remainder of the Type B vent to the outside.
Type B-Vent 5 in. (127 mm) for
B-500 and B-600 Models or
6 in. (153 mm) for B-800 Model
Figure 13
B - The following venting configurations may
be installed (see Figure 14):
1 - Vertical - Minimum overall height of the
vent system and appliance without an offset
must be 10' (2.54 m)
2 - With Offset -
a - Minimum overall height of the vent system
and appliance must be 12' (3.66 m) when an
offset up to 45 degrees from the vertical is
used. The lower part of the offset may start at the
fireplace flue collar.
8
Figure 14
b - Minimum overall height of the vent sys-
tem and appliance must be 15' (4.57 m)
when an offset, more than 45 degrees but
less than 60 degrees from the vertical, is
used. The lower part of the offset may start
at the fireplace flue collar.
Maximum overall height of the vent system and
appliance should not exceed 40 feet (12.19 m).
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 installa-
tion instructions for variations of venting tech-
niques. If common venting of several units is
contemplated, it should be discussed with an
Securing
architect and the local Building Department.
Screws
Flue Outlet
Do not place insulation materials within 1 in.
Collar
of the gas vent system.
Step 5. FIELD WIRING
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. SIT and Honeywell Millivolt Wiring
(See Figure 15) –
1. Select any of the following optional con-
trols: appliance-mounted (rocker switch) or
wall-mounted switch, thermostat, or one of
the optional remote control kits. If appliance-
mounted ON/OFF control is selected mount it
in the gas valve mounting bracket.
2. If wall-mounted ON/OFF control switch or
thermostat is selected mount it in a convenient
location on a wall near the fireplace.
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Back View
Of Appliance
3. Wire the control switch within the millivolt
control circuit using the 15 feet of 2 conductor
wire supplied with the unit . Caution: do not
connect the optional wall switch to a 120V
power supply.
4. Alternatively, the appliance may be oper-
ated without the use of the controls indicated
in step 1, solely by manipulating the gas valve
control knob. In order to use this method,
twist the free ends of the two conductor wire
(located in the lower compartment of the unit)
together as shown in Figure 15 .
Note: The supplied 15 feet of 2 conductor
wire has one end of each conductor con-
nected to the gas valve circuit and the other
end of each conductor placed inside the
control compartment.
Honeywell and 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
*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
Figure 15
Back View
Of Appliance
BK
Thermopile
WT
A
B
TO OPERATE UNIT.
Schematic Representation Only
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