Grain Systems PNEG-377 - Manual (Page 94)

94
Fan and Heater
FENWAL-SERIES 05-14
2. With the gas supply shut off, apply electri-
cal power to the system by closing the
control switch or by advancing the thermo-
stat.
3. Check to insure that sparking occurs at the
electrode tiops and across the 1/8" gap
during the "trail-for-ignition" period speci-
fied for the unit. (See Specifications.)
4. 05-142 thermostate reset models will lock-
out after the "trial-for-ignition" period and a
few seconds later will trip the circuit
breaker.
5. Manually open the gas supply line and
either cycle the thermostat or depress the
manual reset button to recycle the unit.
6. Check that ignition has been accomplished
within "trial-for-ignition" period. Sparking
will cease immediately after ignition.
7. If system ignites but fails to hold-in, check
input voltage and polarity and check to
assure that L2 line is grounded. If system
ignites but drops-out and input voltage is
correct, check level of flame current (5mi-
cro Amps minimum). check burner for
proper ground.
Safety Checks
An annual imspection and test, conducted prior to the
start of the heating season by qualified gas service
personnel, is required to verify that the automatic gas
ignition system, all associated components (i.e., fand
limit switchs), and the appliance combustion cham-
ber components operate according to the
manufacturer's specifications. Components that have
been physically damaged or that otherwise to per-
form their function according to specifications must
be replaced immediately to avoid creating fire,
explosive, and/or toxic hazards that can result
inproperty damage, personal injury or even death.
Test the control as follows:
1. Manually shut off the gas supply and
apply power to the control board. After
the "trial-for-ignition" period has elapsed,
check that there is no voltage output
between terminals B(V1) and V2, using a
suitable voltmeter or neon tester.
2. Manually open the gas supply line and re-
activate control unit. Sparking should
occur and immediately cease when the
flame is established. While running,
manually close the gas supply. Sparking
should promptly reappear when the flame
is extinguished. The spark should remain
on for the "trial-for-ignition" period and
the lock-out. Check that there is no
voltage output betweeen terminals B(V1)
and V2 described in section 1 above.
NOTE: Recyle system before each test by cycling
the thermostate or depressing the manual reset
button.
Repair and Replacements
Warnings
1. The Fenwal 05-14 ignition system is not
field repairable. Any alteration or modifi
cation may result in fire, explosion, toxic
hazards, proerty damage, personal injury
or death. Consult you local Fenway
Authorized Heating Wholesaler for
replacement ignition system.
2. Use caution to avoid miswiring a replace
ment controller. It is recommended to
remove one wire at a time from the
defective unit and reconnect it tot the
corresponding terminal of the new con
trol. Misconnection can result in condi
tions hazardous to life and property.
3. The Fenwal 05-14 Direct Spark Ignition
System is desinged for use only on new
productrs by manufacturers of gas fired
equipment. It may be used only as such,
or as a replacement for an existing
Fenwal Spark Ignition with the same catalog
number. Any substitution or applications
must be expressly approved by Fjenwal or
the manufacturer of the equipemnt.
Improper substitutions or aapplications
may result in malfunction of equipemnt
such as loss of flame sensing safety circuit
creating an explosive atmosphere.