Goodman *CVC96 Installation Instructions Manual page 27

If it is necessary for the installer to supply additional line voltage wiring
to the inside of the furnace, the wiring must conform to all local codes,
and have a minimum temperature rating of 105°C. All line voltage
wire splices must be made inside the furnace junction box.
The integrated control module single humidifier terminal (HUM) is
energized with 115 volts whenever the induced draft blower is ener-
gized. The integrated control module electronic air cleaner terminals
(EAC) are energized with 115 volts whenever the circulator blower is
energized. This terminal can also be used to provide 115 volt power
to a humidifier transformer. The remaining primary transformer
wire would be connected to the Line N on the control board.
In addition, the control is equipped with a dedicated humidifica-
tion relay which is available through ¼ inch terminals HUM-IN and
HUM-OUT. Similar to the HUM terminal, when utilizing legacy con-
nections, this relay will be closed during normal heating opera-
tion. HUM IN must be powered with the desired voltage (24 vac
from the R terminal or 115 vac from L1 terminal). The internal
relay will close during a call for heat. Also, the control can provide
additional humidification features when wired to a communicat-
ing thermostat (1, 2, R, C connections). If the communicating
thermostat is not capable of providing a humidification call, this
dedicated relay will function exactly as mentioned above with a legacy setup. If the communicating thermostat is capable of
providing a humidification call the user is now provided with 3 modes of operations which can be selected within the
thermostat user menu.
1. ON: Humidifier is turned on with a heat
demand.
2. OFF: Humidifier remains off (relay never
closes).
3. IND: Humidifier will cycle with humidifi-
cation demand, independent of heat demand.
This mode allows the user to select one of 4
fan speeds (25, 50, 75, and 100%).
NEUTRAL
Figure 35A
24 VOLT
COMMON
Figure 35B
27
Accessories Wiring
Figure 34