Checking Gas Pressure; Electrical Installation; Electrical Wiring - MHSC 400DVBNVMH7 Installation & Operation Manual

Direct Vent Gas Fireplace for Mobile Homes MIllIVolt & electRoNIc cHecK GAs PRessuRe and electRIcAl INstAllAtIoN
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 immediately.
. To ease installation, a 30" (76 mm) flex line with
manual shut-off valve has been provided with on
this appliance. Install and attach 1/" gas line onto
shut-off valve.
3. 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 solution of
50/40 water and soap or a gas sniffer.
4. To adjust flame height, turn HI/LO knob to HI to get
maximum pressure to burner. Turn HI/LO knob to
LO to get minimum pressure.
5. To check gas pressures at valve, turn captured
screw counter clockwise  or 3 turns and then place
tubing to pressure gauge over test point. Turn unit
to high. Figure 50. After taking pressure reading,
be sure and turn captured screw clockwise firmly
to reseal. Do not over torque. Check test points for
gas leaks.

electRIcAl WIRING

This fireplace will work without any electrical supply. Elec-
tricity is only needed to operate blower.
NOTE: If installed in mobile home, fireplace must be
bolted securely to floor.
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) and canadian electrical code,
csA c22.1.
30
Pressure
Test "IN"
Pressure
Test "OUT"
HI/LO Knob
Pilot Adjustment Screw
Figure 50 -
Gas Pressure Check at Gas Valve
FP1979
Do not use open flame to check for gas
Millivolt gas valve
leaks.
label all wires before disconnecting when
servicing controls. Wiring errors can cause
improper and dangerous operation.
Verify proper operation after servicing.
FP1979
54D4500