Motor And Blower Wheel Check; Installation Data - Space-Ray LTU 80– N5 Installation And Operation Instructions Manual

IGNITION MODULE DIAGNOSTICS IGNITION MODULE DIAGNOSTICS
IGNITION MODULE DIAGNOSTICS IGNITION MODULE DIAGNOSTICS
The LED LED LED LED located on the ignition module will flash ON
condition. The pause between fault codes is 3 seconds.
LED Indication
Steady On Internal Control Fault
2 Flashes Flame Sense Fault
3 Flashes Ignition Lockout
TO CHECK FLAME SENSOR CIRCUIT TO CHECK FLAME SENSOR CIRCUIT
TO CHECK FLAME SENSOR CIRCUIT TO CHECK FLAME SENSOR CIRCUIT
The flame current is the current that passes through the flame from the sensor to the ground. The
minimum flame current necessary to keep the system from lockout is 0.7
a. To measure the flame current, connect an analog DC micro-ammeter to the FC
diagram. The meter should read 0.7
b. If the meter reads below zero
leads for proper polarity.
c. Remove micro-ammeter. Return system to normal operation.
24.5)

MOTOR AND BLOWER WHEEL CHECK

If draft inducer motor fails to run:
a. Check power supply to junction box.
b. Check for loose or broken motor lead wire.
c. Check to see that blower wheel turns freely and is not rubbing housing. Blower wheel may have worked
loose from shaft and jammed against housing.
d. Check for blower wheel damage; replace if necessary. If no damage, readjust blower wheel on shaft &
retighten set screw.
e. If all above does not correct, replace motor.
25.0)

INSTALLATION DATA

Date of
Installation:
Serial No.
Model: LTS LTS or or or or LTU LTS LTS LTU LTU LTU
(Fenwal #35- - - - 6087J1 (Fenwal #35 6087J1- - - - 034 module only) 034 module only)
(Fenwal #35 (Fenwal #35 6087J1 6087J1 034 module only) 034 module only)
ON for ¼ second, then OFF ON ON
Error Mode
(Fenwal #35- - - - 6087J1 (Fenwal #35 6087J1- - - - 034 module only) 034 module only)
(Fenwal #35 (Fenwal #35 6087J1 6087J1 034 module only) 034 module only)
0.7 0.7 micro-amps or higher when the burner is running full on. 0.7
zero zero, the meter leads are reversed. Disconnect power and reconnect the meter zero
-54-
OFF for ¼ second during a fault OFF OFF
0.7 micro-amps. 0.7 0.7
# of Heaters in
System:
N = Natural Gas
L = Propane Gas
FC- - - - and FC+ FC+ terminals per
FC FC FC+ FC+
Form #43155010
May 2013