115 Volt Line Connections; Volt Thermostat Wiring - Goodman GMV95 Installation Instructions Manual

115 V L C
OLT INE ONNECTIONS
Before proceeding with electrical connections, ensure that the sup-
ply voltage, frequency, and phase correspond to that specified on
the unit rating plate. Power supply to the furnace must be N.E.C.
Class 1, and must comply with all applicable codes. The furnace
must be electrically grounded in accordance with local codes or, in
their absence, with the latest edition of The National Electric Code,
ANSI NFPA 70 and/or The Canadian Electric Code CSA C22.1.
Use a separate fused branch electrical circuit containing properly
sized wire, and fuse or circuit breaker. The fuse or circuit breaker
must be sized in accordance with the maximum overcurrent pro-
tection specified on the unit rating plate. An electrical disconnect
must be provided at the furnace location.
Connect hot, neutral, and ground wires as shown in the wiring
diagram located on the unit's blower door. For direct vent applica-
tions, the cabinet opening to the junction box must be sealed air
tight using either an UL approved bushing such as Heyco Liquid
Tight or by applying non-reactive UL approved sealant to bushing.
Line polarity must be observed when making field connections.
Line voltage connections can be made through either the right or
left side panel. The furnace is shipped configured for a left side
(right side for counterflows) electrical connection with the junction
box located inside the burner compartment. To make electrical
connections through the opposite side of the furnace, the junction
box must be relocated to the other side of the burner compartment
prior to making electrical connections. To relocate the junction box,
follow the steps shown below.
NOTE: Wire routing must not to interfere with circulator blower
operation, filter removal, or routine maintenance.
E
DGES OF SHEET METAL HOLES MAY BE SHARP
PRECAUTION WHEN REMOVING HOLE PLUGS
1. Remove the burner compartment door.
2. Remove and save the two screws securing the junction box
to the side panel.
3. Relocate junction box and associated plugs and grommets
to opposite side panel. Secure with screws removed in
step 2.
STANDARD
JUNCTION BOX
LOCATION
Junction Box Relocation
HIGH VOLTAGE!
T
O AVOID THE RISK OF INJURY
,
DEATH THE FURNACE MUST BE ELECTRICALLY
GROUNDED IN ACCORDANCE WITH LOCAL CODES OR IN
,
THEIR ABSENCE WITH THE LATEST EDITION OF THE
N E C .
ATIONAL LECTRIC ODE
To ensure proper unit grounding, the ground wire should run from
the furnace ground screw located inside the furnace junction box
WARNING
. U
SE GLOVES AS A
.
ALTERNATE
JUNCTION BOX
LOCATION
WARNING
,
ELECTRICAL SHOCK OR
all the way back to the electrical panel. NOTE: Do not use gas
piping as an electrical ground. To confirm proper unit grounding,
turn off the electrical power and perform the following check.
1. Measure resistance between the neutral (white) connection
and one of the burners.
2. Resistance should measure 10 ohms or less.
This furnace is equipped with a blower door interlock switch which
interrupts unit voltage when the blower door is opened for servic-
ing. Do not defeat this switch.
24 V T W
OLT HERMOSTAT
NOTE: Wire routing must not interfere with circulator blower
operation, filter removal, or routine maintenance.
As a two-stage furnace, the furnace integrated control module pro-
vides terminals for both "W1" and "W2", and "YLO" and "Y" thermo-
stat connections. This allows the furnace to support the following
system applications: 'Two-Stage Heating Only', 'Two-Stage Heat-
ing with Single-Stage Cooling', and 'Two-Stage Heating with Two-
Stage Cooling'. Refer to the following figures and table for proper
connections to the integrated control module.
Low voltage connections can be made through either the right or
left side panel. Thermostat wiring entrance holes are located in the
blower compartment. Wire routing must not interfere with circula-
tor blower operation, filter removal, or routine maintenance.
O YLO Y
Y
Remote
Condensing Unit
(Single-Stage Cooling)
Single-Stage Heating with Single-Stage Cooling
NOTE: To apply a single-stage heating thermostat, the
thermostat selector jumper on the integrated Control
module must be set on single stage.
Y
O YLO Y B/C
Y C
Remote
Condensing Unit
(Single-Stage Cooling)
Two-Stage Heating with Single-Stage Cooling
22
IRING
Thermostat
( )
Single-Stage Heating
with
Single-Stage Cooling
W
Y
G R
Furnace Integrated
B/C G R W1 W2 DEHUM
TWIN
Control Module
NEU
Dehumidistat
HOT
C
[Optional]
W2
Thermostat
(
Two-Stage Heating
with
Single-Stage Cooling
W1
G R
Furnace Integrated
DEHUM
G R W1 W2
TWIN Control Module
NEU
Dehumidistat
HOT
[Optional]
)