VS8521 VENTFREE MILLIVOLT GAS VALVE
3
69-1223—1
Fig. 3. Top view of gas valve with HI/LO regulator.
Fig. 4. Top view of gas valve with standard regulator.
Fig. 5. Proper use of wrench on gas valve.
WIRING
Follow the wiring instructions furnished by the appliance
manufacturer, if available, or use the general instructions
provided below. Where these instructions differ from the
appliance manufacturer, follow the appliance
manufacturer instructions. For typical wiring diagrams,
see Fig. 6.
All wiring must comply with applicable electrical codes
and ordinances.
Disconnect power supply before making wiring
connections to prevent electrical shock or equipment
damage.
1.
Check the power supply rating on the gas valve
and make sure it matches the available supply.
Install the transformer, thermostat, and other
controls, as required.
2.
This valve can be used only in a self-generating
system.
3.
Adjust the thermostat heat anticipator to the 0.1A
at 750 mV rating stamped on the valve operator.
TPTH
TP
L
HI
O
M10926
OFF
PILOT
ON
HI/LO
REGULATOR
TH
WIRING
TERMINALS
INLET
PRESSURE TAP
OUTLET
PRESSURE TAP
GAS
CONTROL KNOB
TPTH
TP
TH
M10927
OFF
PILOT
ON
OUTLET
PRESSURE
TAP
PRESSURE REGULATOR
ADJUSTMENT (UNDER
CAP SCREW)
WIRING
TERMINALS
INLET
PRESSURE TAP
GAS
CONTROL
KNOB
APPLY WRENCH
FROM BOTTOM OF
GAS CONTROL TO
SHADED AREA
M6916