Single -Stage Thermostat Application; Volt Dehumidistat Wiring; Fossil Fuel Applications; 115 Volt Line Connection Of Accessories (Humidifier And Electronic Air Cleaner ) - Goodman GMV95 Installation Instructions Manual

YLO
Y
G
O YLO Y B/C G
YLO C
Y
Remote
Condensing Unit
(Two-Stage Cooling)
Two-Stage Heating with Two-Stage Cooling
Thermostat Diagrams
This furnace is equipped with a 40 VA transformer to facilitate use
with most cooling equipment. Consult the wiring diagram, located
on the blower compartment door, for further details of 115 Volt and
24 Volt wiring.
S -S T
INGLE TAGE HERMOSTAT
A single-stage thermostat with only one heating stage can be used
to control this furnace. The application of a single-stage thermo-
stat does not offer "true" thermostat-driven two-stage operation,
but provides a timed transition from low to high fire. The furnace
will run on low stage for a fixed period of time before stepping up to
high stage to satisfy the thermostat's call for heat. The delay pe-
riod prior to stepping up can be set at either 5 or 10 minutes through
the DIP switch adjacent to the Heat Off delay DIP switches on the
integrated control module. To use a single-stage thermostat, turn
off power to the furnace, move the thermostat selection jumper on
the integrated control module from the "two-stage" position to the
"single-stage" position, turn power back on. Refer to the following
figures.
T-Stat selection jumper in
T
single-stage thermostat
W
TSTAT
O
position.
S
I
ON
N 3
G
L
2
E
1
DIP switch position 3: ON
Delay Period: 10 minutes.
24 V D W
OLT EHUMIDISTAT IRING
The optional usage of a dehumidistat allows the furnace's circula-
tor blower to operate at a slightly lower speed during a combined
thermostat call for cooling and dehumidistat call for dehumidifica-
tion. This lower blower speed enhances dehumidification of the
conditioned air as it passes through the AC coil. For proper func-
tion, a dehumidistat applied to this furnace must operate on 24
VAC and utilize a switch which opens on humidity rise.
To install/connect a dehumidistat:
1. Turn OFF power to furnace.
2. Secure the dehumidistat neutral wire (typically the white
lead) to the screw terminal marked "DEHUM" on the furnace
integrated control module.
3. Secure the dehumidistat hot wire (typically the black lead)
to the screw 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.
Thermostat
( )
Two-Stage Heating
W2
with
Two-Stage Cooling
W1
R
Furnace Integrated
DEHUM
R W1 W2
TWIN
Control Module
NEU
Dehumidistat
HOT
[Optional]
A
PPLICATION
T
W
O
TSTAT
S
I
OFF
N
G
L
E
DIP switch position 3: OFF
Delay Period: 5 minutes.
5. Turn ON power to furnace.
To enable the dehumidify function on the integrated control mod-
ule:
1. Cut the jumper wire labeled "CUT FOR DEHUM" located
adjacent to the DEHUM screw terminal.
Once the jumper wire is cut, the dehumidify function is enabled
during a combination call for cooling (T-Stat) and dehumidification
(Dehum-Stat). The yellow LED adjacent to the DEHUM screw ter-
minal will be illuminated during dehumidification.
F F A
OSSIL UEL PPLICATIONS
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, gas furnace, or both).
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 installa-
tion instructions. All furnace connections must be made to the
furnace two-stage integrated control module and the "FUR-
NACE" terminal strip on the fossil fuel control board.
115 V L C
OLT INE ONNECTION OF
E A
AND LECTRONIC
3
HIGH VOLTAGE!
2
T
O AVOID PERSONAL INJURY OR DEATH DUE TO
1
ELECTRICAL SHOCK
BEFORE SERVICING OR CHANGING ANY ELECTRICAL
.
WIRING
The furnace's integrated control module is equipped with line volt-
age accessory terminals for controlling power to an optional field-
supplied humidifier and/or electronic air cleaner.
The accessory load specifications are as follows:
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 humidifier and electronic air cleaner hot and neutral
terminals are identified as HUM and EAC. All field wiring must
conform to applicable codes. Connections should be made as
shown.
23
A
CCESSORIES
C )
IR LEANER
WARNING
,
DISCONNECT ELECTRICAL POWER
1.0 Amp maximum at 120 VAC
1.0 Amp maximum at 120 VAC
(H
UMIDIFIER