Electrical Wiring; Standing Pilot Ignition Wiring - Millivolt Control - MHSC 2000 SERIES Installation And Operating Instructions Manual

Direct vent gas fireplace
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1. Check gas type. The gas supply must be the same
as stated on the appliance's rating decal. If the gas
supply is different from the fireplace, STOP! Do not
install the appliance. Contact your dealer immedi-
ately.
2. To ease installation, a 30" flex line with manual
shut-off valve has been installed on this fireplace.
Install 1/2" gas line onto shut-off valve.
3. Locate the gas line access hole in the outer casing
of the fireplace. Open the fireplace door, insert the
gas supply line through the knock out hole on the
gas line cover plate, and connect it to the shut-off
valve.
4. After completing gas line connection, purge air from
gas line and test all gas joints from the gas meter to
the fireplace for leaks. Use a soap and water solution
or a gas sniffer.
5. To check gas pressure at valve, turn captured screw
counter clockwise 2 or 3 turns and then place tubing
to pressure gauge over test point. See Figure 18.
After taking pressure reading, be sure and turn
captured screw clockwise firmly to re-seal. Do not
over torque. Check test points for gas leaks.

ELECTRICAL WIRING

Electrical connections should only be performed by a qualified, licensed electrician.
Main power must be off when connecting to main electrical power supply or performing
service. All wiring shall be in compliance with all local, city, and state codes. The
appliance, when installed, must be electrically grounded in accordance with local
codes, or in the absence of local codes, with the National Electrical Code ANSI/ NFPA
70 (latest edition).
Label all wires before disconnecting when servicing controls. Wiring errors can cause
improper and dangerous operation.
Verify proper operation after servicing.
STANDING PILOT IGNITION WIRING – MILLIVOLT CONTROL
Do not connect 110-120 VAC to the Remote Wall Switch, DC Remote Control or the
Millivolt Control Valve. The appliance will malfunction or the valve will be destroyed.
37D0334
GAS LINE
ELECTRICAL WIRING INSTALLATION
AND
Pressure
Test "IN"
Pressure
Test "OUT"
Figure 18 - Gas Pressure check at Gas Valve
Do not use open flame to check for
Pilot Adjustment
Screw
gas leaks.
21

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