Installation and Operating Instructions
30
75D2525
DVM Series Direct Vent Gas Fireplace
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 replace, Do not install the
appliance. Contact your dealer immediately.
2. To ease installation, a 18" (457 mm) ex line with manual
shut-off valve has been provided with on this appli-
ance. Install and attach 1/2" 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 replace for leaks. Use a solution of 50/40
water and soap or a gas sniffer.
4. To adjust ame 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 2 or 3 turns and then place
tubing to pressure gauge over test point. Turn unit
to high. Figure 47. After taking pressure reading,
be sure and turn captured screw clockwise rmly
to reseal. Do not over torque. Check test points for
gas leaks.
This replace will work without any electrical supply except to operate blower and electronic igni-
tion system.
If installed in mobile home, replace must be bolted securely to oor.
FP1979
Millivolt gas valve
FP1979
Figure 47 -
Gas Pressure Check at Gas Valve
Pressure
Test “IN”
Pressure
Test “OUT”
HI/LO Knob
Pilot Adjustment Screw
Verify proper operation after servicing.