VS8510/VS8520 MILLIVOLT COMBINATION GAS CONTROL
68-0203
12
Honeywell Europe S.A.
3 Avenue du Bourget
1140 Brussels
Belgium
Honeywell Asia Pacific Inc.
Room 3213-3225
Sun Hung Kai Centre
No. 30 Harbour Road
Wanchai
Hong Kong
Home and Building Control
Honeywell Limited-Honeywell Limitée
155 Gordon Baker Road
North York, Ontario
M2H 3N7
Honeywell Latin American Region
480 Sawgrass Corporate Parkway
Suite 200
Sunrise FL 33325
68-0203 R.L. 10-97
Home and Building Control
Honeywell Inc.
Honeywell Plaza
P.O. Box 524
Minneapolis MN 55408-0524
Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.
•
Exposure to water, dirt, chemicals and heat can damage
the gas control and shut down the control system.
The maintenance program should include regular checkout of
the system as outlined in the Checkout section, and checkout
of the control system as described in the appliance
manufacturer literature.
Maintenance frequency must be determined individually for
each application. Some considerations are:
•
Cycling frequency. Appliances that may cycle 20,000 times
annually should be checked monthly.
•
Intermittent use. Appliances that are used seasonally
should be checked before shutdown and again before the
next use.
•
Consequence of unexpected shutdown. Where the cost of
an unexpected shutdown would be high, the system
should be checked more often.
•
Dusty, wet, or corrosive environment. Because these
environments can cause the gas control to deteriorate
more rapidly, the system should be checked more often.
Any control should be replaced if it does not perform properly
on checkout or service. In addition, replace any module if it is
wet or looks like it has ever been wet.
4. If no voltage is present, check the control circuit for
proper operation.
5. If proper control system voltage is present, replace the
gas control.
Warning to the Appliance Owner. For Your Safety,
Read Before Lighting Appliance.
WARNING
Fire or Explosion Hazard.
Can cause severe injury or death and property
damage.
Exactly follow the warnings and the lighting
instructions.
1.
Before lighting, smell around the appliance area
for gas. If the appliance uses LP (bottled) gas, be
sure to smell next to the floor because LP gas is
heavier than air. If you smell gas, immediately
shut off the manual valve in the gas piping to the
appliance or, on LP, at the tank. Do not try to light
any appliance. Do not touch any electrical switch
or use the phone. Leave the building and call your
gas supplier. If your gas supplier cannot be
reached, call the fire department.
2.
Do not force the gas control knob on the
appliance. Use only your hand to turn the gas
control knob. Never use any tools. If the knob
does not operate by hand, have a qualified
service technician replace the control. Force or
attempted repair can result in fire or explosion.
3.
The gas control must be replaced if it has been
flooded with water. Call a qualified service
technician.
4.
The gas control is a safety device. It must be
replaced in case of any physical damage such as
bent terminals, missing or broken parts, stripped
threads, or evidence of exposure to heat.
ACCESSORIES
Part Number
Description
395991
Natural to LP Conversion Kit for
standard Regulator
395992
LP to Natural Gas Conversion Kit
for standard regulator
SERVICE
WARNING
Fire or Explosion Hazard.
Can cause severe injury or death and property
damage.
Do not disassemble the gas control; it contains no
replaceable components. Attempted disassembly or
repair can damage the control.
CAUTION
Equipment Damage Hazard.
Can burn out heat anticipator in thermostat.
Do not apply a jumper across (or short) the valve coil
terminals even temporarily.
If Main Burner Does Not Come On With Call
For Heat
1. Confirm that the gas control knob is in the ON position.
2. Adjust the thermostat several degrees above the room
temperature.
3. Use a dc voltmeter to measure the voltage across the
THTP and TP terminals.
customer.honeywell.com