Volt Thermostat Wiring; Ingle Tage Eating Hermostat; Ossil Uel Pplications - Goodman MEC961205DN Instruction Manual

24 V T W
OLT HERMOSTAT IRING
IMPORTANT NOTE
W
IRE ROUTING MUST NOT INTERFERE WITH CIRCULATOR BLOWER
,
OPERATION FILTER REMOVAL OR ROUTINE MAINTENANCE
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.
Y C
Remote Condensing Unit
(Single-Stage Cooling)
Thermostat - Single -Stage Heating with Single-Stage Cooling
NOTE: To apply a single-stage Heating Thermostat, the thermostat
selector switch on the Integrated Control Module must be set
on single-stage.
Y C
Remote Condensing Unit
(Single-Stage Cooling)
Thermostat - Two-Stage Heating with Single-Stage Cooling
Y2
Y
Y2
Remote Condensing Unit
(Two-Stage Cooling)
Thermostat - Two-Stage Heating with Two-Stage Cooling
Thermostat Wiring Diagrams
.
R
Furnace
Integrated
R
Control
Module
Figure 30
R
Furnace
Integrated
R
Control
Module
Figure 31
W1 W2
Furnace
W1 W2
Integrated
Control
Module
Figure 32
S -S H
INGLE TAGE EATING
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 step-
ping up can be set at either a fixed 10 or 20 minute time
delay or a load based variable time between 1 and 12 min-
utes (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.
PCBBF139 CONTROL BOARD
Switch
Purpose
Group
Thermostat
1 Stg Stat 10 min delay
S3
Setup
1 Stg Stat 20 min delay
Heating Fan
S3
Off Delay
* FACTORY
SETTING
PCBBF137 CONTROL BOARD
DIP DIP
Switch Switch Purpos e
Group Number
Hea t
1, 2 Sta ging /
Dela y
S1
Blower
3, 4 Hea t Off
De la y
* = Fa ctory Pos i tion
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 com-
bined gas furnace and heat pump installation which uses an out-
door 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 installa-
tion 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.
25
T A
HERMOSTAT PPLICATION
Dip Switch
Function
1 2
2 Stage Stat OFF OFF
ON OFF
ON ON
Auto OFF* ON*
90 OFF
120 OFF
150 ON*
180
Function
Auto 1 OFF*
10 Minutes 1 ON
20 Minutes 1 ON
2 Sta ge 1 OFF
90 Seconds 3 OFF
120 Seconds 3 OFF
150 Seconds 3 ON*
180 Seconds 3 ON*
3 4
OFF
ON
OFF*
ON ON
2 ON*
2 OFF
2 ON
2 OFF
4 OFF
4 ON
4 OFF*
4 ON