Honeywell V4295A,S, Руководство по установке, Страница: 8 / 8

V4295A,S; V8295A,S SOLENOID GAS VALVES
Automation and Control Solutions
Honeywell International Inc. Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North 35 Dynamic Drive
Golden Valley, MN 55422 Toronto, Ontario M1V 4Z9
customer.honeywell.com
® U.S. Registered Trademark
© 2009 Honeywell International Inc.
65-0194—04 M.S. Rev. 02-09
1. If the valve will not open when the thermostat or
controller is calling for heat:
a. Check that there is voltage at the valve actuator
lead wires or terminal block.
CAUTION
Line voltage (120 Vac) should be present when the
primary safety control energizes the V4295A,S
valve actuator. 24 Vac should be present when the
primary safety control energizes the V8295A,S
valve actuator.
b. If there is no voltage at the actuator, first ensure line
voltage power is connected to the master switch, the
master switch is closed and overload protection (cir-
cuit breaker, fuse or similar device) has not opened
the power line.
c. If there is still no voltage at the actuator, make sure
all appropriate contacts in the thermostat (or control-
ler), limit(s) and flame safeguard control are closed.
If one or more are open, determine the cause(s) and
correct condition(s) before proceeding.
d. If there is proper voltage at the actuator but the
valve still does not open, first check that the gas
pressure is normal.
e. If the valve still does not open, replace valve.
2. If the valve will not close when one or more of the
appropriate contacts in the thermostat (or control-
ler), limit(s) or flame safeguard control is open:
a. Make sure that the gas flow is in the direction of the
arrow on the valve body.
b. Make sure the valve actuator is wired in the correct
circuit. Open the master switch to remove power
from the actuator. If the valve closes now, the actua-
tor may not be wired properly.
c. Look for a short in the electrical circuit.
SERVICE INFORMATION
CAUTION
1. Only qualified service technicians should
attempt to service or repair flame safeguard
control and burner.
2. Line voltage is present in the electrical circuits
to the valve. Open the master switch before
replacing the valve.
CAUTION
1. Label all wires prior to disconnection when
servicing valves. Wiring errors can cause
improper and dangerous operation.
2. Verify proper operation after servicing.
Scheduled inspection and maintenance
For periodic inspection and maintenance, set up a schedule
and follow it. Include the burner, valves and all other burner
controls. It is recommended that “Valve Leak Test (Fig. 8)” on
page 6 be included in the schedule. Refer to the flame
safeguard control instructions for more information.