Inspecting burners, Operating heater – Desa SVYD18PRA User Manual

Page 17

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113084-01E

17

2. Press the MANU button to turn on the

heater.

3. Press the POWER and LOCK buttons

together to turn off the heater.

Auto (Thermostatic) Mode

1. Press the POWER and LOCK buttons together

to turn on the hand-held remote control.

2. Press AUTO button to select this mode.

3. Set the desired room temperature by press-

ing the TEMP + or - buttons.

4. Press the POWER and LOCK buttons

together to turn off the fireplace

Note:

Do not leave the hand-held remote in the

AUTO mode close to the fireplace. The radiant

heat from the fireplace will turn off the fireplace.

Ideally, place the hand-held remote in the center

of the room facing towards the fireplace.
Note:

Do not hold the hand-held remote for

a long time. Body temperature will affect its

operation in the AUTO mode.
Safety Features

When away from home for an extended period

of time or as a child safety feature to prevent

accidental ignition of the fireplace, the receiver

ON/OFF/REMOTE switch should be in the

OFF position.
Auto Shutoff Feature

1. If the average room temperature exceeds

82 degrees Fahrenheit (28 degrees Centi-

grade), the hand-held remote control will

perform a safety override and shut the

fireplace off. This feature is not available

in the MANU mode.

2. The receiver continuously receives signals

from the hand-held remote to control the

room temperature. If the hand-held remote

is misplaced, obstructed or for any reason

cannot transmit to the receiver, the receiver

will shut off the fireplace after 8 minutes.

Key Pad Lock Feature

This feature allows the user to lock/unlock

the keypad on the hand-held remote in the

MANU or AUTO mode to prevent inadvertent

operation (i.e. children operating the hand-held

remote control, etc.). The keypad is locked in

either on or off. Press the POWER and LOCK

buttons together to turn the unit on or off.

OPERATING HEATER

Continued

INSPECTING BURNERS

Check pilot flame pattern and burner flame pat-

terns often.

PILOT FLAME PATTERN

Figure 25 shows a correct pilot flame pattern. Figure

26 shows an incorrect pilot flame pattern. The in-

correct pilot flame is not heating the thermocouple.

This will cause the thermocouple to cool. When the

thermocouple cools, the heater will shut down.

If pilot flame pattern is incorrect, as shown in

Figure 26

• turn heater off (see To Turn Off Gas to Appli-

ance, page 15

• see Troubleshooting, page 19
Note:

The pilot flame on natural gas units will

have a slight curve, but flame should be blue and

have no yellow or orange color.

BURNER PRIMARY AIR HOLES

Air is drawn into the burner through the holes in

the fitting at the burner entrance. These holes may

become blocked with dust or lint. Periodically

inspect these holes for any blockage and clean if

needed. Blocked air holes will create soot.

MAIN BURNER

Periodically inspect all burner flame holes with

the heater running. All slotted burner flame holes

should be open with yellow flame present. All

round burner flame holes should be open with a

small blue flame present. Some burner flame holes

may become blocked by debris or rust, with no

flame present. If so, turn off heater and let cool.

Remove blockage. Blocked burner flame holes

will create soot.

Pilot Burner

Figure 25 - Correct Pilot Flame Pattern

(Propane/LP Shown)

Figure 26 - Incorrect Pilot Flame Pattern

(Propane/LP Shown)

Thermocouple

Pilot Burner

Thermocouple

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