Desa BHDV37N/P User Manual download pdf (Page 28)

28

104558

DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)

®

(B)HDV37N/P AND (B)HDV41N/P

INSPECTING

BURNERS

Check pilot flame pattern and burner flame

patterns often.

PILOT ASSEMBLY

The pilot assembly is factory preset for the

proper flame height. Alterations may have

occurred during shipping and handling. Call

a qualified service person to readjust the

pilot if necessary.

The height of the thermopile must be 3/8" to

1/2" above the pilot flame as shown in Figure

60. The thermocouple must be at a height of

about 1/8" above the pilot flame. The flame

from the pilot burner must extend beyond

both the thermocouple and thermopile.

If your pilot assembly does not meet these

requirements:

• turn fireplace off (see To Turn Off Gas to

Appliance, page 26)

• see Troubleshooting, pages 30 through 32

BURNER FLAME PATTERN

Burner flames will be steady; not lifting or

floating. Flame patterns will be different

from unit to unit and will vary depending on

installation type and weather conditions.

If the vent configuration is installed incor-

rectly, the flames will lift or "ghost". This

can be dangerous. Inspect the flames after

installation to ensure proper installation and

performance.

Figure 61 shows a typical flame pattern for

HDV37N, HDV37P, HDV41N, and

HDV41P models. Figure 62 shows a typical

flame pattern for BHDV37N, BHDV37P,

BHDV41N, and BHDV41P.

If burner flame pattern differs from that

described:

• turn fireplace off (see To Turn Off Gas to

Appliance, page 26)

• see Troubleshooting, pages 30 through 32

Figure 60 - Pilot Assembly

Figure 61 - Typical Flame Pattern for

HDV37N/P and HDV41N/P

Figure 62 - Typical Flame Pattern for

BHDV37N/P and BHDV41N/P

Thermocouple

Thermopile

3/8" to 1/2"

1/8"

Pilot Burner

Piezo

Ignitor

OPERATING

FIREPLACE

Continued

OPERATING

OPTIONAL GWMT1

WALL MOUNTED

THERMOSTAT

Light the fireplace as instructed in Light-

ing Instructions on page 26. Set wall ther-

mostat to desired temperature.

This thermostat has been electronically

calibrated at the factory and requires no

adjustment or leveling.

Upon installation, the thermostat must

be allowed to stabilize at room tempera-

ture for a minimum of 30 minutes for

proper operation.

To turn the fireplace off, adjust thermo-

stat to the lowest setting and turn the gas

control knob back to PILOT. The pilot

will remain lit.

IMPORTANT:

To turn the pilot off, turn

the gas control knob on the heater to the

OFF position.

WARNING: Do not connect

the thermostat to a power source.

Electrical shock and/or a fire haz-

ard will occur.

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