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NHSC / NHDI SERIES
CONTROL CIRCUIT TERMINAL BLOCK
IMPORTANT: READ THESE INSTRUCTIONS CAREFULLY BEFORE CONNECTING CONTROL WIRING
NOTE: If no On/Off
Control is used, then
af
ield jumper must
be connected across
8 and 10 in order for
humidifier to operate
NOTE: See Included Diagram(s) For Accessory Wiring Instructions
INSTALLATION INSTRUCTIONS
ACCESSORY
DIAGRAM No. 1508104 Rev. A Nov. 21, 2003
8
32 30 28
61
Control
Humidistat
Air Pro ving
Sw itc h
Hig h Lim it
Humidistat
OtherOn/Off
Devices
Optional
Modulation Control
See Diagram included
with unit for details
10
Optional external remote
indication. Any or all of these
remote indications can be
utilized. Refer to Trouble
Shooting Manual for system
status indication.
NHDI: Dry Points, rated 24 Vac/dc 1.0 Amps
max. resistive load per Indicator
OPTIONAL REMOTE
STATUS PC B
K1 St e a m
K4 Un i t O N
K3 Se r v i c e
K2 Er r o r