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13
Vermont Castings Jefferson Vent Free Gas Heater
20003447
Operation
Your First Fire
Read these instructions carefully and familiarize
yourself with the burner controls of this heater.
The JUVSR uses a Honeywell control valve that allows
thermostatic, on/off switch regulation and has a sepa-
rate Piezo ignition button. (Fig. 20)
The JUVSM is equipped with an SIT control valve for
manual use only.
Locate the Pilot assembly to the right behind the
burner. (Fig. 21) Follow the lighting instructions on page
14 exactly.
For the first fire, allow the stove to operate continuously
for six hours without using the fan. During the first fire, it
is not unusual to smell some odor associated with new
logs, paint and metal being heated. Odors should
dissipate within a few hours or so, however, you can
open a window to provide plenty of fresh air to alleviate
this condition.
Pilot and Burner Inspection
Each time you light your heater, check that the pilot
flame and burner flame pattern are as shown in Figures
22 and 23. If flame patterns are incorrect, turn the
heater off. See
Troubleshooting
, page 15.
Follow regular maintenance procedures as described
on page 17.
Flame & Temperature Adjustment
For units equipped with ‘HI/LO’ valves, the flame
adjustment is accomplished by rotating the ‘HI/LO’
adjustment knob located near the center of the gas
valve. (Fig. 20, 21)
Flame Characteristics
It is important to periodically perform a visual check of
the pilot and burner flames. Compare them to the
illustration below. (Fig. 22, 23) If the flame patterns
appear abnormal contact a qualified service provider for
service and adjustment.
Thermopile*
Fig. 22 Correct Pilot Flame. (*JUVSM pilots do not have
Thermopile)
Pilot Orifice
ST117a
Fig. 23 Proper flame pattern with Regulator in HIGH
position.
ST116
ST232
Fig. 19 Pilot assembly location.
Natural
Pilot
LP Pilot
LO
HI
Turn
counterclockwise
to decrease
flame height
Turn clockwise
to increase
flame height
HV102
Fig. 20 Flame adjustment knob for Honeywell Valve.
HI
OFF
PILOT
LO
Turn
counterclockwise
to increase
flame height
Turn clockwise
to decrease
flame height
SIT 630
HV117
Fig. 21 Flame adjustment knob for Eurosit Valve.