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-23-
NHB HUMIDIFIER
w OR w/o OPTIONAL BLOWER PACK
(BUILT-ON OR REMOTE)
WIRING DIAGRAM NO. 92-0-A REV. 9
6 8
10
S
S
14 12 16
18
20
26 22 24
2061
Y
Y
G
STATUS
INDICATOR
LED's
_
_
OPTIONAL REMOTE
YELLOW
INDICATOR
Si 1= 3.15A FUSE
Si 2= 3.15A FUSE
Sx % = MANUAL CAPACITY ADJUST
81
81
82
82
83
83
84
84
85
85
8
10
JUMPER OR
ON/OFF
CONTROLS
IN SERIES
RED WIRE
SSS
SSS
SSS
S
S
xxx
TRANSFORMER
3PHASE
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
1/3
2/3
1/2
2/2
2/1
NHB MAIN BOARD
OPTIONAL
INTERNAL
FUSE BLOCK
(NHB 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 ( NHB
030 OR SMALLER)
OPTIONAL BLOWER PACK ( BUILT-ON OR REMOTE )
OPTIONAL BLOWER PACK
MOUNTED ON/OFF HUMIDISTAT
or JUMPER
INTERNAL
EXTERNAL
CONTACTOR(S)
4
6
7
8
2
4
Si 1
Si 2
Sx %
HIGH
WATER
SENSOR
FAN
3
2
4
1