External Controls Wiring Connections - Nortec GH Series Installation, User & Maintenance Manual

generic
NOTE: This is a
to the wiring diagram which is supplied with each unit.
Security Loop
24Vac
Other On / Off
Device
Blower
Pack
High Limit
Humidistat
Air Proving
Switch
On/Off Control
Humidistat
EXTERNAL
1 2
INTERNAL
NOTE: If no On/Off Control
is used then a field jumper
must be connected across
terminals 1 and 2 in order
for the humidifier to operate.
wiring diagram only. For specific wiring instructions, it is necessary to refer
Fai lur e t o w i r e t h e c on t ro l le r
i n ac co rd anc e w i th t he w ir i n g di ag r am
sup pl i ed w i th t he un it c o ul d p er m an ent l y
dam a ge t he e le ct r on ics . S uc h er ro r s w il l
voi d t he u ni t w ar r a nty.
Modulation
Signal
Input
"A"
(GHP/MC)
3 4 5 6
INPUTS
- 29 -
Peripheral Humidifier Interface
Unit Operation Signal
(BMS Interface)
0 - 10Vdc
+5 Vdc Supply
Modulation
Signal
Input
"B"
(MC Only)
7 8 9 10 11
OUTPUTS
MC Models Only
GH SERIES

EXTERNAL CONTROLS WIRING CONNECTIONS

LOW VOLTAGE TERMINAL STRIP
Diagram number GHX3001 Rev. B January 2, 2001
0 - 10 Vdc
EXTERNAL
12
INTERNAL