External Controls Wiring Connections - Nortec Gas-fired Humidifier Installation, User & Maintenance Manual

GH SERIES
EXTERNAL CONTROLS WIRING CONNECTIONS
LOW VOLTAGE TERMINAL STRIP
NOTE: This is a generic wiring diagram only. For specific wiring instructions, it is necessary to refer
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
WARNING:
Failure to wire the controller
in accordance wi th the wiring diagram
supplied with the unit could permanently
damage the electron ics. Such errors wi 11
void the unit warranty.
Modulation
Signal
Input
"An
(GHP/MC)
Peripheral Humidifier Interface
0- 10 Vdc
Unit Operation Signal
(BMS Interface)
0- 10Vdc
+5 Vdc Supply
Modulation
Signal
Input
"8"
(MC Only)
EXTE RNAL
.---I---r--.l..-.y--.,...--a---r-~.,-I---,..... . ......................................... _. __ .......... _..... ........•...... ........
EXTE R NAL
718[9
1
10111'12,-1 - - -
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.
j
;flloltec
WHEN YOU NEED HUMIDITY
.... · ........ · .. ·3.··· .... ••· .... ····;·· .... ··..,.· ..
·i. ..
r . . . . · . . · . .
·i ................ ;. ................ ;
INTERNAL
I I
INPUTS - - - -
l.
OUTPUTS ....
I I
I
MC Models Only
GH SERIES
EXTERNAL CONTROLS WIRING CONNECTIONS
LOW VOLTAGE TERMINAL STRIP
Diagram No. GHX3001 Rev.A Nov. 6,1998
- 35-