1 68-0049—2
G. S. • Rev. 1-94 • ©Honeywell Inc. 1994 • Form Number 68-0049—2
VR8205; VR4205
Direct Ignition Dual Automatic
Valve Combination Gas Controls
The VR8205 and VR4205 Direct Ignition Dual
Automatic Valve Combination Gas Controls are
for use with direct ignition systems in gas-fired
appliances. The controls include a safety shutoff,
a manual valve, two automatic operators and a
pressure regulator and conduit cover (VR4205
only).
CONTENTS
Specifications ............................................... 2
Ordering Information .................................. 2
Installation ................................................... 4
Startup and Checkout .................................. 8
Maintenance .............................................. 10
Operation ................................................... 10
Service ........................................................ 12
■ VR8205 used with S89C,E,F and S87 series 5 and later.
■ VR4205 used with 120 Vac direct ignition modules.
■ VR8205 for use with 24 Vac heating appliances and
VR4205 for use with 120 Vac heating appliances that
burn natural or manufactured gas, or liquefied petroleum
(LP) gas.
■ Capacity rated at 150 cfh at 1 in. wc pressure drop
[4.2 m
3
/h at 0.25 kPa].
■ Solenoid operated first automatic valve opens on
thermostat call for heat and closes when call for heat
ends.
■ Diaphragm-operated second automatic valve opens under
control of the regulator and closes if gas or power supply
is interrupted.
■ 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
available for inlet and outlet.
■ 1/2 in. inlet and 1 /2 in. outlet; adapters available for 3/8
or 3/4 in.
■ Adjustable servo regulator effectively maintains almost
constant gas output pressure under wide fluctuations in
gas supply pressure.
■ Inlet and outlet screens included.
■ Wiring terminal block color-coded brown to indicate
direct ignition control.
■ May be installed at any angle between 0 and 90 degrees
from the upright position, including vertically.
■ 1/4 in. male quick-connect terminals for electrical
connections.
■ 0° F to 175° F [-18° C to +79° C] temperature range
standard; -40° F to +175° F [-40° C to +79° C] available.
■ lnlet and outlet pressure taps included; both taps accessible
from top of control.
■ Standard-, slow- and step-opening models available.
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