VR8305 Direct Ignition
Dual Automatic Valve
Combination Gas Controls
■ Adjustable servo regulator effectively maintains almost
constant gas output pressure under wide fluctuations in
gas supply pressure.
■ Inlet screen included.
■ Wiring terminal block color-coded brown to indicate
direct ignition control.
■ May be installed at any angle including vertically between
0 and 90 degrees from the upright position.
■ 1/4 inch male quick-connect terminals for electrical con-
nections.
■ -40° F to +175° F [-40° C to +79° C] temperature range.
(VR8305H 0° F to 175° F [-18° C to 79° C]).
■ Inlet and outlet pressure taps included; both taps acces-
sible from top of control.
■ Standard, slow, and step-opening models available.
■ Natural to LP gas conversion kit included for standard-
opening and slow-opening models.
■ LP to natural gas conversion kit available for standard-
opening and slow-opening models.
The VR8305 Direct Ignition Dual Automatic
Valve Combination Gas Controls are for use with
direct ignition systems in gas-fired appliances.
The controls include a safety shut-off, a manual
valve, two automatic operators, and a pressure
regulator.
■ Used with S89C,E,F and S87 series 5 and later.
■ Used with 24 Vac heating appliances that burn natural or
liquefied petroleum (LP) gas.
■ Capacity rated up to 300 feet
3
/hour at 1 inch wc pressure
drop [8.5 meters
3
/hour at 0.25 kPa]. Maximum capacity
rated up to 415 feet
3
/hour [11.8 meters
3
/hour]. Minimum
capacity rated at 30 feet
3
/hour [0.8 meters
3
/hour].
■ Solenoid operated dual first automatic valves open on
thermostat call for heat and close when call for heat ends.
■ Opening of the solenoid-operated second automatic valve
engages the servo pressure regulator. Loss of power or gas
closes the valve.
■ Two-position gas control knob has ON and OFF positions.
■ All adjustments and wiring connections accessible from
top of the control.
■ Compact size.
■ Straight-through body pattern; right angle adapters avail-
able for inlet and outlet.
■ Available in 1/2 inch and 3/4 inch inlet and outlet. 1/2 inch
and 3/4 inch straight and angle adapters available.
G.G. • Rev. 1-92 • ©Honeywell Inc. 1992 • Printed in U.S.A. • Form Number 68-0109—3
CONTENTS
Specifications ................................................. 2
Ordering Information ..................................... 2
Installation ..................................................... 4
Start-up and Checkout.................................... 8
Maintenance .................................................10
Operation ..................................................... 10
Service .......................................................... 13
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