Single -Stage Heating Thermostat Application; Volt Dehumidistat Wiring; Ossil Uel Pplications; 115 Volt Line Connection Of Accessories (Humidifier And Electronic Air Cleaner ) - Goodman MVM96 Installation Instructions Manual

Y2
Y2
Y2
Remote
Condensing Unit
(Two-Stage Cooling)
Thermostat - Two-Stage Heating with Two-Stage Cooling
IMPORTANT NOTE
S #14 ON
ET DIP SWITCH TO POSITION
.
COOLING THERMOSTAT
Thermostat Wiring Diagrams
S -S H T
INGLE TAGE EATING
A single-stage thermostat with only one heating stage may be
used to control this furnace.
To use a single-stage thermostat, turn off power to the furnace,
move the thermostat selection DIP switch to the OFF position.
Turn power back on. Refer to the dip switch chart in this manual.
24 V D W
OLT EHUMIDISTAT
The optional usage of a dehumidistat allows the furnace's circula-
tor blower to operate at a slightly lower speed (85% of desired
speed) during a combined thermostat call for cooling and dehumi-
distat call for dehumidification. This can be done through an inde-
pendent dehumidistat or through a thermostat's DEHUM terminal
(if available). This lower blower speed enhances dehumidification
of the conditioned air as it passes through the AC coil. For proper
function, a dehumidistat applied to this furnace must operate on
24 VAC and utilize a switch which opens on humidity rise. Refer
to the "Thermostat Wiring Diagrams" figure for additional wir-
ing details.
To install/connect a dehumidistat:
1. Turn OFF power to furnace.
2. Secure the dehumidistat neutral wire (typically the white
lead) to the terminal marked "DEHUM" on the furnace
integrated control module.
3. Secure the dehumidistat hot wire (typically the black lead)
to the terminal marked "R" on the furnace integrated control
module.
4. Secure the dehumidistat ground wire (typically the green
lead) to the ground screw on the furnace junction box.
NOTE: Ground wire may not be present on all
dehumidistats.
5. Turn ON power to furnace.
To enable the dehumidify function on the integrated control mod-
ule, set the dehumidification ENABLE dipswitch from OFF to ON.
W1 W2
Furnace Integrated
W1 W2
Control Module
NEU
Dehumidistat
[Optional]
2‐
WHEN USING A STAGE
A
HERMOSTAT PPLICATION
IRING
Once the switch is set, the dehumidify function is enabled during a
combination call for cooling (T-Stat) and dehumidification (DEHUM-
Stat). Refer to the dip switch chart in the back section of this
manual.
F F A
OSSIL UEL
This furnace can be used in conjunction with a heat pump in a
fossil fuel application. A fossil fuel application refers to a combined
gas furnace and heat pump installation which uses an outdoor
temperature sensor to determine the most cost efficient means of
heating (heat pump or gas furnace).
A heat pump thermostat with three stages of heat is required to
properly use a two-stage furnace in conjunction with a heat pump.
Refer to the fossil fuel kit installation instructions for additional
thermostat requirements.
Strictly follow the wiring guidelines in the fossil fuel kit installation
instructions. All furnace connections must be made to the furnace
two-stage integrated control module and the "FURNACE" terminal
strip on the fossil fuel control board.
115 V L
OLT INE
E A
LECTRONIC
HIGH VOLTAGE !
T
O AVOID PERSONAL
ELECTRICAL SHOCK
BEFORE SERVICING
.
WIRING
The furnace integrated control module is equipped with line voltage
accessory terminals for controlling power to an electronic air cleaner.
The accessory load specifications are as follows. (The furnace
control board also has a set of dry contacts for humidifier
connection.)
Humidifier
Electronic Air Cleaner
Turn OFF power to the furnace before installing any accessories.
Follow the humidifier or air cleaner manufacturers' instructions for
locating, mounting, grounding, and controlling these accessories.
Accessory wiring connections are to be made through the 1/4"
quick connect terminals provided on the furnace integrated control
module. The Electronic air cleaner hot terminal is identified as
EAC. The EAC neutral terminal is identified as NEUTRAL. A
line voltage humidifier may be connected between one of the
HUM contacts and NEUTRAL. The other HUM contact must
be fed from the L1 terminal.
All field wiring must conform to applicable codes. Connections
should be made as shown in the following figure.
28
PPLICATIONS
C A
ONNECTION OF CCESSORIES
C )
IR LEANER
WARNING
INJURY OR DEATH DUE TO
,
DISCONNECT ELECTRICAL POWER
OR CHANGING ANY ELECTRICAL
1.0 Amp maximum at 120 VAC
1.0 Amp maximum at 120 VAC
(H
UMIDIFIER AND