Install Instructions

General Filters
Incorporated
15 | P a g e
3.7 Wiring Connections
Terminals
Functions
Electrical specifications
L1-L2 -GROUND
Power supply and ground connections
Power supply 110 VAC 1-phase 50-60Hz 1.86kW or 230 VAC 1-
phase 50-60Hz 4.05kW
KEY
Programming port
Connecting to programming port or supervisor
AB-AB
Remote enabling input
Imposes an external NO contact; Rmax=300 Ohm; Vmax=33 Vdc;
Imax=6mAdc; humidifier enabled = contact closed
IN-GND
Humidistat control signal input
If programmed 0...10V:
Input impedance 10 kohm
If programmed ON-OFF:
Vmax 33Vdc
Imax = 5mA Rmax = 300 Ohm
NC-C-NO
NC alarm contact
Common alarm contact
NO alarm contact
250V; 8 Amp max with resistive load; 4 Amp max with inductive
load
NO-C
External fan relay (furnace blower)
250VAC; 8 Amp max with resistive load; 4 Amp max with inductive
load
24GND
Power for external humidistat
Power supply for external humidistat 24 VAC; 2 Watt
F – INT FAN
For Remote Mount Blower
For optional RMB only, not for furnace or air handler connections
3.7.1 Wiring Diagram of Controller
Always use AWG10 wires and dedicated 25A or 30A breaker for power supply connections to L1 / 2 above.
Figure 3.z.1