Vermont Casting DVR28IN User Manual

Page 28

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Vermont Castings DVR28 Direct Vent Gas Fireplace

Troubleshooting AF4000 Valve

(continued)

Room temperature dis-
played on handheld trans-
mitter is not correct. (When
using Thermostatic transmi-
iters only).

Unit will not respond in
THERMO mode. Thermo-
static transmitters only).

•

Ensure the transmitter was not recently stored in a different environment (air-con-
ditioned, heated) from that in which the transmitter is being tested. It may take up
to 3 hours for the temperature inside a packaged transmitter, and several minutes
for an unpackaged transmitter, to equalize with the room temperature.

•

Ensure the thermostatic transmitter is within the 20’ (6 m) operational range.

•

Make sure an ON or OFF command was not last sent from another transmitter.
These commands will over-ride the thermal commands from the handheld trans-
mitter. To return the system to THERMO mode, press either ON or OFF on the
thermostatic transmitter, then press the MODE button to put the system in THER-
MO mode. Press and hold the SET button to change the set temperature. (Fig. 43)

•

Verify the set temperature on the thermostatic remote is at least 2 degrees above
or below the room temperature. The system will not react to temperatures within 2
degrees of the set temperature.

Figure 43: Hand Transmitter

AAA

12V (A23)

FP1765
transmitter back
2/07

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ON H/L

OFF/CONTINUOUS

PILOT BUTTON

MODE

SET

OFF

LOW

OFF

FP1768
transmitter front
2/07

FP1765

LCD Display

ON HI/LO
Button

OFF/Continuous
Pilot Button

Mode Button

Set Button

FP1768

Front

Back

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Figure 44: Continuous Pilot Indication on LCD Screen

FP1770