Vermont Castings LHERDV20 Owners Installation And Operating Manual page 21

Delay Timer Mode
��he shut off delay timer has a maximum of  hours and a
minimum of zero minutes. ��o change the timer level, press
the time key followed by an arrow key. Pushing the key
once will change the timer by 10 minutes.
Auto Mode
In the A���O mode, the room temperature, set temperature,
flame and fan levels will be shown. A���O will appear next
to both the flame and fan icons.
When the control is in the A���O mode, the main burner
will turn on/off or modulate based on the heat needed to
maintain the set temperature. ��he flame level will change
automatically to optimize the heat output needed to main-
tain the set temperature. ��o change the set temperature,
press the up or down key. Pushing a key once will change
the temperature by one degree.
In the A���O mode, the fan speed will increase with increas-
ing flame height or decrease with decreasing flame height.
"A���O" is displayed next to the flame and fan icons.
Fan Override During Auto Mode
If a lower or higher fan speed is desired when operating
in the A���O mode, the fan speed can be overridden by
pushing the fan button followed by the up or down key.
Pushing a key once will change the fan level by one unit.
In this mode "A���O" is displayed next to the flame icon
and "MAN�AL" is displayed next to the fan icon.
Change Between F/C Temperature Units
Push the up and down arrow keys simultaneously for at
least 3 seconds to toggle between Fahrenheit and Celsius
units.
Disable Thermostat Function
��o disable the thermostat function in the A���O mode,
push the time and down keys simultaneously for at least
3 seconds.
To Change Batteries
1. Remove cover on the backside of the transmitter. Install
3 AAA batteries as shown and reattach cover.
. Once steps 1-3 in OP��RA��ION are completed, receiver/
valve and transmitter are now ready. Press any button
on transmitter for recognition process to occur between
the receiver/valve and transmitter.
3. �se functions as described in ��RAN�MI������R sec-
tion.
10004894
LHEDV Series Direct Vent Insert
Pilot As-
sembly
Red
White
Red
White
Antenna
FP1038
Fig. 27 Comfort Valve wiring diagram.
Troubleshooting
1. Locate L��D light on valve.
. L��D will blink after every valid command received by
the transmitter; this is not an error.
3. Failure codes may occur anytime after pilot burner is
lit.
4. �equence is failure code followed by light not blinking
for 30 seconds.
5. In the event of multiple failure codes, next failure code
follows previous failure code by approximately 3 sec-
onds.
If an Error Code 3 is observed while performing the
testing, complete the following:
1. Make sure the spade connectors are pushed all the way
on. If the ��rror Code 3 is still showing, then go to the
next step.
. �witch the front two thermopile leads with the back two.
Be sure the white lead is connected to the spade with
the white dot next to it. If the ��rror Code 3 is still show-
ing, replace the thermopiles.
If an Error Code 8 is observed while performing the
testing, complete the following:
1. Confirm the valve is not in R��MO���� mode.
•
If the valve is producing ��rror Code 8 and in R��-
MO���� mode, the valve is defective and should be
replaced.
•
If the valve is in LOCAL mode and producing ��rror
Code 8, then go to the next step.
Fan
White Dots
Valve
(Bottom View)
FP1038
comfort valve
wiring diagram
3/24/00 djt
1