Home-Resideo HM750 Installation Manual

HM750A1000
27 33-00289EF—03
Fig. 34. Wiring diagram.
M37217A
ORANGE
BLACK
BLACK
STEAM CARTRIDGE
ELECTRODES
TO CARTRIDGE
MAIN SUPPLY
GND
J14
AIR PROVING
HUMIDISTAT
EXTERNAL
FUSE
T2A 250V
VOLTAGE SELECTION
120VAC
240VAC
TRANSFORMER
L1 L2/N GND
24VAC
COM
HUMIDISTAT
AIR PROVING SW
GT
RF
GF
IDLE LED
FILLING LED
HUMIDIFYING LED
DRAINING LED
CYLINDER
LED
FAULT LED
ON/OFF/DRAIN/FAULT RESET BUTTON
BLACK
BLUE
RED
YELLOW
FILL VALVE
DRAIN VALVE
FAULT CODES
NUMBER OF FLASHES INDICATES FAULTS
TO CLEAR FAULTS, PRESS AND HOLD POWER BUTTON FOR FIVE SECONDS
1. EXCESSIVE CURRENT
2. FILL/DRAIN ERROR
3. INSUFFICIENT CURRENT
4. PCB ERROR
5. WRONG VOLTAGE SELECTION
FLASHING IDLE LED - AIR PROVING ERROR (MAKE SURE AP IS MET OR CLOSED)
J10