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NHMC HUMIDIFIER
w OR w/o OPTIONAL BLOWER PACK
(BUILT-ON OR REMOTE)
WIRING DIAGRAM NO. 94-0-A REV. 10
6 8
10
S
S
14 12 16 18 2032 30 28 2642224
LCD DISPLAY
X2 X4
RS 232
X3
44 46 48 42
38 34 36 40
K3
K2
366340622061
R
G
Y
STATUS
INDICATOR
LED's
__
32 30 28 26
OPTIONAL REMOTE
YELLOW, GREEN
AND RED
INDICATORS
SEE EX. W.D.
Si 1
Si 2
Si 1= 3.15A FUSE
Si 2= 3.15A FUSE
81
81
82
82
83
83
84
84
85
85
8
10
JUMPER OR
ON/OFF
CONTROLS
IN SERIES
RED WIRE
OPTIONAL
MODULATION
SSS
SSS
SSS
S
S
xxx
TRANSFORMER
3 PHASE
CONNECTION
24 V
COIL
24 V
COIL
G
L1L2L3
3A
FUSE
FILL
VALVE
DRAIN
VALVE
24 V
COIL
24 V
COIL
0N
OFF
DRAIN
1/1
2/1
1/3
2/3
1/2
2/2
OPTIONAL LCD/KEYPAD DISPLAY
NHMC MAIN BOARD
c/w PIGGY BACK BOARD
OPTIONAL
INTERNAL
FUSE BLOCK
(NHMC 050
OR LARGER)
MAIN SWITCH
DOOR
INTERLOCK
SWITCH
EXTERNAL
EXTERNAL
INTERNAL
INTERNAL
TRANSFORMER
( IF REQUIRED )
3A
FUSE
24 V
COIL
FAN
RELAY
THERMODISC ( N.O. )
RESETABLE
THERMODISC ( N.C. )
T
HIGH
LOW
TWO SPEED SWITCH
DEDICATED
DISCONNECT
BY OTHERS
BLOWER
PACK
TERMINAL
BLOCKS
STEP DOWN
TRANSFORMER
T
GROUND
CLAMP
PRI. TERMINAL
BLOCK OR
OPTIONAL FUSE
BLOCK ( NHMC
030 OR SMALLER)
OPTIONAL BLOWER PACK ( BUILT-ON OR REMOTE )
OPTIONAL BLOWER PACK
MOUNTED ON/OFF HUMIDISTAT
or JUMPER
INTERNAL
EXTERNAL
CONTACTOR(S)
HIGH
WATER
SENSOR
500 OHM
2WATT
RESISTOR
FAN
24 V
Y
G
G
4
1
3
2