Desa VTN25R Benutzerhandbuch

www.desatech.com

113261-01A

Thermocouple

Pilot Burner

Thermocouple

Blue Flame

Yellow Flame

Figure 20 - Correct Pilot Flame Pattern

Figure 21 - Incorrect Pilot Flame Pattern

Figure 22 - Burner Operation

THERMOSTAT FUNCTION
Setting Desired Room Temperature

This remote control system can be thermostati-

cally controlled when the remote control is in

the thermo mode. The word ROOM must be

displayed on the screen.

1. Press MODE button on remote control until

ROOM appears. This sets the remote to the

thermostat mode.

2. Press and hold the SET button until the

desired temperature is displayed. The

numbers will increase from 45° to 99° then

restart over at 45°. After releasing the SET

button, the set room temperature will dis-

play for 3 seconds, then default to display

the room temperature.

Changing Set Temperature

1. Follow step two under Setting Desired Room

Temperature

above.

2. Press the MODE button to disengage the

thermo mode. The word ROOM does

not display when thermo mode is not in

operation.

INSPECTING HEATER

Check pilot ﬂame pattern and burner ﬂame pat-

tern often.

PILOT FLAME PATTERN

Figure 20 shows a correct pilot ﬂame pattern.

Figure 21 shows an incorrect pilot ﬂame pattern.

The incorrect pilot flame is not touching 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 21
• turn heater off (see To Turn Off Gas to Appliance,

page 14)

• see Troubleshooting, page 17
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.

Correct
Flame
Pattern

Incorrect
Flame
Pattern

BURNER FLAME PATTERN

Figure 22 shows a correct and incorrect burner ﬂame

pattern. If burner ﬂame pattern is incorrect
• turn heater off (see To Turn Off Gas to Appli-

ance

, page 14)

• see Troubleshooting, page 17

OPERATING HEATER

Continued