Desa VUL18 - Manual (Page 25)

www.desatech.com 119426-01A 25
Manual Mode
1. Press the POWER and LOCK buttons together
to turn on the hand-held remote control.
2. Press the MANU button to turn on the
fireplace.
3. Press the POWER and LOCK buttons
together to turn off the fireplace.
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 36 shows a correct pilot flame pattern.
Figure 37 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 37
• turn heater off (see To Turn Off Gas to Appli-
ance, page 21 [Thermostatically-Controlled
Models] or page 23 [Remote-Ready Models])
• see Troubleshooting, page 28
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.
Figure 36 - Correct Pilot Flame Pattern
(Your pilot may vary from pilots shown)
Pilot Burner
Thermocouple
Figure 37 - Incorrect Pilot Flame Pattern
(Your pilot may vary from pilots shown)
Thermocouple
Thermocouple
Thermocouple
Pilot Burner