Desa VF-24N-MHD - Manual (Page 16)

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6. Press the buttons and at the same
time. A short acoustic signal confirms the
start sequence has begun.
Further short acoustic signals (0.2 sec., 1 Hz)
indicate the ignition process until it is com-
pleted and main gas flows. If pilot is already
lit, motor will turn on (max. flame height)
while buttons are pressed down. If pilot does
not light, see Troubleshooting, page 21.
7. Press to turn on main burner and in-
crease flame height. Press to decrease
flame height and shut off main burner.
8. Short tapping of either button allows incre-
mental change in flame height.
9. Press OFF button to switch off main gas
and pilot gas.
FUNCTIONS OF
REMOTE CONTROL
Battery
• After the charged battery has been correctly
installed, the remote hand set is ready for
operations.
• Remove the battery if the remote handset
will not be used more than one year.
Changing The Code
The control is radio frequency operated. A code
(chosen from among 4,000 available codes) is
preset for all valves, but can be changed if re-
quired (15 additional codes available). Change
DIP switch position. (The DIP switch is located
inside the hand held control at the top of the
battery compartment.) Then press the receiver's
reset button on the bottom of the receiver module
until you hear a second (longer) signal. When
pressing the button on the remote handset
in the following 20 sec., the receiver learns the
new code.
Shut-off Procedure
To save battery power; press to turn main
gas to pilot gas. Press OFF button to shut off
the device including pilot flame. The device can
be shut off with ON/OFF switch, thus disabling
the remote hand set.
Setting The Display ( °C/24h and °F /12h)
Press and hold OFF and until display
changes from °F (and 12 hour clock) to °C (and
24 hour clock) or vice versa.
Setting The Time
• After connecting the battery or by simulta-
neously pressing and the display will
start to flash. You are in the set mode.
• From SET mode press to set the hour and
to set the minute.
• Wait or press OFF to return to the manual
mode.
Battery Replacement
Remote handset battery needs to be changed
when LED is dim. Battery life expectancy is 2
to 3 years. Replacement is recommended at the
beginning of heating season. Battery needs to be
changed when acoustic error message appears
during ignition (see Identifying Error Signals
from Receiver on page 24).
Changing Mode of Operation
• Press the SET button quickly to change the
mode of operation in the following order:
MAN, TEMP, TEMP, TIMER.
• Manual flame height adjustment (MAN ap-
pears on display): Press to turn on the fire
(main burner) or to increase flame height.
Press to decrease flame or to go down
to pilot only. The receiver acknowledges the
transmission with an acoustic signal.
• The day time temperature mode ( TEMP ap-
pears on display): The sensor in the transmitter
measures room temperature. The controller
compares the room temperature with set tem-
perature and sends a signal to the receiver to
turn the gas valve motor up or down, to adjust
the flame height accordingly.
• The nighttime setback temperature (
TEMP appears on display): The sensor in the
transmitter measures the temperature and
adjusts it according to the nighttime setback
temperature. There is a bigger temperature
differential during this cycle.
oPeRaTING HeaTeR
Continued
SET
OFF
STAND
BY
Figure 17 - Control Panel for Hand-Held Remote