Desa VF-18P-PJD Water Heater User Manual


 
www.desatech.com
111826-04B
16
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 required (15 additional codes
available). Change DIP switch position. (The
DIP switch is located inside the hand held
control at the top of the battery compart-
ment.) Then press the receiver's reset button
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 23).
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.
Timer: The timer mode (
TIMER ) operates
much like the temperature mode above. The
timer setting allows you to set specific times
for on and off. (There are 2 burner on and
2 burner off cycles every 24 hours.) If the
reading for the nighttime temp. is "– – –",
the motor will turn off the valve to standby
pilot position and wait for the next burner
on cycle. This display shows the setting tem
-
perature every 30 seconds.
Setting the Temperature
Select the desired mode of operation (day or
night) by pressing the
SET button briefly.
Hold the SET button until the display
flashes.
Set the temperature with the
or (40°F
is the minimum temperature).
Wait or press OFF to go to temperature
control mode.
If temperature control in moon times should
be off (lower battery consumption), decrease
the night temperature until "– – –" appears
on display.
OPERATING HEATER
Continued
SET
OFF
STAND
BY
Figure 16 - Control Panel for Hand-Held
Remote