GS 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.
WA R N I N G : F a i l u r e t o w i r e t h e c o n t r o l l e r i n a c c o r d a n c e w i t h t h e w i r i n g d i a g r a m t h a t w a s s u p p l i e d
w i t h t h e u n i t c o u l d p e r m a n e n t l y d a m a g e t h e G S T C / G S P b o a r d . S u c h e r r o r s w i l l v o i d t h e u n i t w a r r a n t y.
Security Loop
EXTERNAL
1 2
INTERNAL
ModulationInputSignal“A" | ModulationInputSignal“B” | 10Vdcoutput | FullTankBlowDown(FTBD) enable(24Vac) | SafetyInterrupt(24Vac) | Humidifier“ON” |
| Humidifier“ACTIVE” |
| Humidifier“SERVICE” |
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| Humidifier“FAULT” |
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| COM | N.O. | COM | N.O. | COM | N.O. | N.O. | COM | N.C. |
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3 
4 
5 
6 
7 
8 
9 
10
11
12
13
14
15
16
17
18
+ +
EXTERNAL
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.
Low Voltage Terminal Strip
1 & 2: Wire all on/off controls and safeties between these two terminals. If not used, jumper 1 & 2 for the unit to operate.
4:Modulating input to humidifier “A”.
5:Modulating input to humidifier “B”.
6:10 Vdc output.
8:When 24 Vac input received, the unit will initialize a full tank blowdown.
9:Safety interrupt (24 Vac).
10 & 11: Remote indication connection for humidifier “on” status indication.
12 & 13: Remote indication connection for humidifier “active” status.
14 & 15: Remote indication connection for service required indication.
16 & 17 & 18: Remote indication connection for fault indication.
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