Gas Supply Pressures; Fan Kit; Fan Removal Instructions; Installation Of Trim Switch For Rn/Rp Gas Valves - Vermont Castings LHER20 Installation Instructions & Homeowner's Manual

Gas Supply Pressures

This heater must be isolated from the gas supply
piping system by closing its individual manual shut-off
valve during any pressure equal to or less than 1/2
psig (3.45kPa).
The heater and its individual shut-off valve must be
disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in
excess of 1/2 psig (3.45kPa).

Fan Kit

115 volt, 60 Hz. 56w (Model FK24)
NOTE: The LHER20 is not designed for a fan kit.
The fan kit includes the following: fan, temperature
sensor, speed control and a 6 ft. cord. The following
explains how to start and set the fan for automatic
operation.
1. Plug in the electrical cord.
2. Start gas fire - see lighting procedures.
3. Turn on fan speed control.
4. Wait until the unit has warmed up sufficiently to
activate the temperature sensor, approx. 5-10
minutes.
5. Once fan starts, adjust speed control to desired fan
speed. The fan will now automatically come on every
time the fireplace is in operation. Should the fan not
be needed simply turn off the speed control.
The appliance, when installed must be
electrically connected and grounded in
accordance with local codes or, in the
absence of local codes, with the current
CSA C22.1 Canadian Electrical Code.
U.S. Installations, follow local codes and
the National Electrical Code, ANSI/NFPA
No. 70.
Should this fan require servicing, the
power supply must be disconnected. For
rewiring of any replacement components
refer to Figure 6.

Fan Removal Instructions

1. Turn off gas and electricity.
2. Remove the front glass.
3. Remove the logs.
CAUTION: Logs may be hot!
4. For Model LHEC20: remove burner assembly and
bracket rear log. For Model LHEC30: remove
bracket rear log and cover fan.
10005360
Vermont Castings, Majestic Products LHE Natural Vent Insert
5. Remove the fan mounting nuts (2 nuts). (Fig. 5)
6. Slip off the electrical connector at the motor.
7. Lift out the fan.
8. To reinstall reverse procedure.
Fig. 5 Fan location.
Black
White
Ground
Fig. 6 Wiring diagram RN/RP. NOTE: For comfort valve
wiring diagram refer to Page 18, Figure 27.
1. Thread wire through openings on the right side of
2. Insert ON/OFF switch with wiring assembly into the
3. For left side installation, relocate the bracket switch
4. Connect wiring from the switch to the gas valve (Fig.
On/Off
Switch
Assembly
Fig. 7 Insert ON/OFF switch with wiring assembly into
bracket switch.
Thermal Sensor is
Attached to Burner
Base
Screw Stud
Fan Speed Control/Junction Box
Temperature Sensor
Speed
Control
Installation of Trim Switch
for RN/RP Gas Valves
fireplace. Do not cut wire or insulation on metal edges.
bracket switch with the pre-punched opening mounted
on the right side of the trim. (Fig. 7)
to the left side of the trim kit and repeat Step 2. (Fig.
8)
9a & b).
Right Side Installation
Wiring from
Millivolt Gas
Valve
Screw
Stud
Fan is Installed at
the Back of the
Air Intake Box
FP1252
Fan
FP394
Left Side Installation
On/Off
Switch
Assembly
FP1330
7