1-40
H50 SERIES— FULL-VAT WITH ONE DUAL-SPARK IGNITION MODULE
(ONE DUAL FUNCTION HEAT/BLOWER RELAY (K3))
LINE VOLTAGE
K3
HEAT &
BLOWER
RELAY
AIR
OPTIONAL
AIR
SWITCH
BLOWER
HI LIMIT
12V
24V
TEMP
PROBE
24V
LED 3
LED 5
R-GV
R HEAT
LED 4
R
PWR
V1D
ALARM
LED 6
12V
L HEAT
LED 2
L
PWR
ALARM
V2S
POWER
ON/OFF
TROUBLE
HEAT
T
J3
621291185431
J2
11
11
4
4
13
13
14
14
10
10
5
5
3
3
1
1
2
2
GV
DUAL-SPARK
IGNITION
MODULE
ALARM
TD
VALV
E
GND
BNR
GND
RIGHT
IGNITOR
S
D
M
DRAIN SAFETY
SWITCH
1/50
A
47K
1K
F1
25V+
HV
HV
LEFT
IGNITOR
NOTE: SOME UNITS
MANUFACTURED AFTER
AUGUST 2000 ARE
EQUIPPED WITH ONE
DUAL-SPARK IGNITION
MODULE. OTHERS MAY
BE EQUIPPED WITH TWO
SINGLE-SPARK IGNITION
MODULES.
DRAIN SAFETY SWITCH
ONLY ON MODELS WITH
BUILT-IN FILTRATION
AIR SWITCH
ONLY ON CE AND SOME
EXPORT UNITS
F2
FUSE