Volt Thermostat Wiring; Single -Stage Heating Thermostat Application - Goodman CVC9/95 Installation Instructions Manual

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
IMPORTANT NOTE
W
IRE ROUTING MUST NOT INTERFERE
,
OPERATION FILTER REMOVAL
A
REMOVABLE PLUG CONNECTOR
MAKE THERMOSTAT WIRE CONNECTIONS
WIRE CONNECTIONS MADE TO
STRONGLY
RECOMMENDED
WIRES INTO A SINGLE TERMINAL
18 AWG
ENSURE ONE WIRE IS
DO SO MAY RESULT IN INTERMITTENT
As a two-stage non-communicating furnace, the furnace inte-
grated control module provides terminals for both "W1" and "W2",
and "Y1" and "Y2" thermostat connections. This allows the fur-
nace to support the following system applications: 'Two-Stage
Heating Only', 'Two-Stage Heating with Single Stage Cooling',
and 'Two-Stage Heating with Two-Stage Cooling'. Refer to the
following figures 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. The following figure shows connec-
tions for a "heat/cool system".
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.
NOTE: For single stage cooling applications, a jumper must be
located between Y1 and Y2 at the furnace control in order to
achieve the desired single stage cooling airflow. Use of ramping
profiles and dehumidification features require a jumper between
Y1 and O and Y1 and DEHUM, respectively.
NOTE: Thermostat "R" required if outdoor unit is equipped with a
Comfort Alert™ module or if the out door unit is a part of the
ComfortNet™™ family of equipment AND is wired as a non-
communicating system.
Y C
Remote
Condensing Unit
(Single-Stage Cooling)
IRING
WITH CIRCULATOR BLOWER
.
OR ROUTINE MAINTENANCE
IS PROVIDED WITH THE CONTROL
. T
HIS PLUG MAY BE
, . I
THE PLUG AND REPLACED T
THAT YOU DO NOT CONNECT MULTIPLE
. W
IRE NUTS ARE RECOMMENDED
. F
USED FOR EACH TERMINAL
.
OPERATION
R
Furnace Integrated
R
Control Module
NEU
Dehumidistat
[Optional]
NOTE: To apply a single-stage Heating Thermostat, the thermostat
selector switch on the Integrated Control Module must be set on
single-stage.
Thermostat - Single -Stage Heating with Single-Stage
TO
,
REMOVED
IS
TO
Thermostat - Two-Stage Heating with Single-Stage Cooling
AILURE TO
Y2
Y2
Y2
(Two-Stage Cooling)
Thermostat - Two-Stage Heating with Two-Stage Cooling
S -S
INGLE
A single-stage thermostat with only one heating stage may
be used to control this furnace. The application of a single-
stage thermostat offers 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 period prior to stepping
up can be set at either a fixed 5 minute time delay or a load
based variable time between 1 and 12 minutes (AUTO mode).
If the AUTO mode is selected, the control averages the cycle
times of the previous three cycles and uses the average to
determine the time to transition from low stage to high stage.
To use a single-stage thermostat, turn off power to the fur-
nace, move the thermostat selection DIP switch to the OFF
position. Set the desired transition time by setting the transi-
tion delay DIP switch to the desired ON/OFF position. Turn
power back on. Refer to the following figure.
27
Cooling
_______________________
R
R
Y C NEU
Remote
Condensing Unit
(Single-Stage Cooling)
_______________________
W1 W2
W1 W2
NEU
Remote
Condensing Unit
Thermostat Wiring Diagrams
H T
TAGE EATING HERMOSTAT
Furnace Integrated
Control Module
Dehumidistat
[Optional]
Furnace Integrated
Control Module
Dehumidistat
[Optional]
A
PPLICATION