Honeywell VR8205 Manual
Direct ignition dual automatic valve combination gas controls
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Also See for VR8205:
- Installation instructions manual (13 pages) ,
- Installation instructions manual (8 pages)
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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).
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
3
[4.2 m
/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.
VR8205; VR4205
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.
CONTENTS
Specifications ............................................... 2
Ordering Information .................................. 2
Installation ................................................... 4
Startup and Checkout .................................. 8
Maintenance .............................................. 10
Operation ................................................... 10
Service ........................................................ 12
1
G. S. • Rev. 1-94 • ©Honeywell Inc. 1994 • Form Number 68-0049-2
68-0049-2
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Summary of Contents for Honeywell VR8205
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Page 1: Table Of Contents
Startup and Checkout ........8 1/2 in. inlet and 1 /2 in. outlet; adapters available for 3/8 Maintenance ..........10 or 3/4 in. Operation ........... 10 Service ............12 68-0049—2 G. S. • Rev. 1-94 • ©Honeywell Inc. 1994 • Form Number 68-0049—2... -
Page 2: Specifications
Honeywell, Inc., 1885 Douglas Drive North Minneapolis, Minnesota 55422-4386 (612) 951-1000 In Canada—Honeywell Limited/Honeywell Limitee, 740 Ellesmere Road, Scarborough, Ontario M1P2V9. International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A. - Page 3 393690-16 Elbow 393690-3 393690- 13 3/4 in. NPT Straight 393690-4 393690-14 Elbow 393690-5 393690-15 Fig. 1—Dimensions in in. [mm] of VR4205/VR8205 Combination Gas Control. CONDUIT COVER (VR4205 ONLY) 3-5/8 [91] SWING RADIUS [89] (FOR FLANGE MOUNTING) 8-32 TAPPED (4) [13]...
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Page 4: Installation
VR8205; VR4205 INSTALLATION Installation WHEN INSTALLING THIS PRODUCT… CONVERTING BETWEEN NATURAL AND LP GAS 1. Read these instructions carefully. Failure to follow WARNING them could damage the product or cause a hazardous condi- tion. 2. Check the ratings given in the instructions and on the... - Page 5 VR8205; VR4205 INSTALLATION USING ADAPTERS TO SOLVE SWING RADIUS LOCATION PROBLEMS The combination gas control is mounted in the appli- In some field service applications, it is difficult or im- ance vestibule on the gas manifold. If this is a replacement...
- Page 6 VR8205; VR4205 INSTALLATION Fig. 4—Use moderate amount of pipe com- Fig. 5—Top view of gas control. pound. PRESSURE REGULATOR VR8205 ADJUSTMENT (UNDER WIRING CAP SCREW) TERMINALS (2) TWO IMPERFECT THREADS INLET GAS CONTROL OUTLET PRESSURE TAP PRESSURE PIPE INLET OUTLET...
- Page 7 VR8205; VR4205 INSTALLATION WIRING Fig. 8—Wiring connections for 24 volt control Follow the wiring instructions furnished by the appli- in S87 Direct Ignition System. ance manufacturer, if available, or use the general instruc- tions provided below. Where these instructions differ from...
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Page 8: Startup And Checkout
VR8205; VR4205 STARTUP AND CHECKOUT Startup and Checkout CHECK AND ADJUST GAS INPUT AND WARNING BURNER IGNITION FIRE OR EXPLOSION HAZARD CAUTION CAN CAUSE PROPERTY DAMAGE, SEVERE INJURY OR DEATH 1. Do not exceed input rating stamped on appli- 1. Do not force the gas control knob on the appli- ance nameplate, or manufacturer recommended ance. - Page 9 VR8205; VR4205 STARTUP AND CHECKOUT Slow-opening and Step-opening Pressure Regulators 4. If desired outlet pressure or flow rate cannot be 1. Check the full rate manifold pressure listed on the achieved by adjusting the gas control, check gas control appliance nameplate. Gas control full rate outlet pressure inlet pressure using a manometer at the gas control inlet should match this rating.
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Page 10: Maintenance
Contact your Honeywell sales representative The maintenance program should include regular check- to request a gas valve with corrosion resistant construction. - Page 11 VR8205; VR4205 OPERATION WHEN THERMOSTAT CALLS FOR HEAT immediately reflected back to the pressure regulator dia- When the thermostat calls for heat, the DI module phragm, which repositions to change the flow rate through generates a spark at the main burner and the first automatic the regulator valve, and thus through the automatic valve.
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Page 12: Service
VR8205; VR4205 OPERATION • SERVICE regulator maintains outlet pressure at the preset step rate for WHEN THE CALL FOR HEAT ENDS several seconds. Then the regulator valve is forced fully When the call for heat ends, the first automatic valve and... - Page 13 VR8205; VR4205 S E R V I C E IF MAIN BURNER WILL NOT COME ON WITH IMPORTANT: Follow the operating instructions pro- CALL FOR HEAT vided by the manufacturer of your heating appliance. 1. Confirm that gas control knob is in the ON position.