29
24 V
OLT
T
HERMOSTAT
W
IRING
W
IRE
ROUTING
MUST
NOT
INTERFERE
WITH
CIRCULATOR
BLOWER
OPERATION
,
FILTER
REMOVAL
OR
ROUTINE
MAINTENANCE
.
A
REMOVABLE
PLUG
CONNECTOR
IS
PROVIDED
WITH
THE
FURNACE
CONTROL
TO
MAKE
THERMOSTAT
WIRE
CONNECTIONS
. T
HIS
PLUG
MAY
BE
REMOVED
,
WIRE
CONNECTIONS
MADE
TO
THE
PLUG
,
AND
REPLACED
. I
T
IS
RECOMMENDED
THAT
MULTIPLE
WIRES
BE
JOINED
WITH
A
WIRE
NUT
AND
A
SINGLE
CONDUCTOR
BE
INSERTED
UNDER
THE
TERMINAL
SCREW
. F
AILURE
TO
DO
SO
MAY
RESULT
IN
INTERMITTENT
OPERATION
.
STRONGLY
-
HEAT SET-UP DIP SWITCH
DIP
SWITCH
#13 MUST
BE
SET
TO
MATCH
THERMOSTAT
TYPE
. T
O
USE
THE
CTK01
COMMUNICATING
THERMOSTAT
, DIP
SWITCH
#13
MUST
BE
SET
TO
ON
POSITION
. T
HIS
IS
ALSO
THE
CORRECT
SETTING
FOR
A
NON
-
COMMUNICATING
2-
STAGE
THERMOSTAT
. T
O
USE
CTK02**, CTK03**
OR
CTK04**
MODULATING
THERMOSTAT
,
CHECK
TO
MAKE
SURE
DIP
SWITCH
#13
IS
IN
THE
OFF
POSITION
(
FACTORY
POSITION
). T
HIS
IS
ALSO
THE
CORRECT
POSITION
WHEN
USING
A
NON
-
COMMUNICATING
SINGLE
-
STAGE
THERMOSTAT
.
IMPORTANT NOTE
When installed with a non-communicating thermostat, the
furnace integrated control module provides terminals for both
“W1” and “W2”, and “Y1” and “Y2” thermostat connections.
This allows the furnace to support the following system appli-
cations: ‘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 connec-
tions to the integrated control module.
Low voltage connections can be made through either the right
or left side panel. Thermostat wiring entrance holes are lo-
cated in the blower compartment. The following figure shows
connections for a “heat/cool system”.
This furnace is equipped with a 40 VA transformer to facilitate
use with most cooling equipment. Consult the wiring dia-
gram, located on the blower compartment door, for further de-
tails of 115 Volt and 24 Volt wiring.
NOTE:
Use of cooling ramping profiles and dehum feature
requires a jumper between Y1 and O when a straight cooling
unit is used.
T
HERMOSTAT
“R”
REQUIRED
IF
OUTDOOR
UNIT
IS
EQUIPPED
WITH
A
C
OMFORT
A
LERT
™
MODULE
OR
IF
THE
OUTDOOR
UNIT
IS
A
PART
OF
THE
C
OMFORT
N
ET
™
FAMILY
OF
EQUIPMENT
.
IMPORTANT NOTE
AUX
DE
HUM
W2
C
1
Y1
2
R
W1
Y2
G
O
24 V THERMOSTAT CONNECTIONS
Low Voltage Connections with Auxiliary Terminals
Figure 31
The auxiliary contacts are shipped with a factory installed
jumper. As an option, the auxiliary contacts may be wired
to a normally closed float switch. In the event of open
contacts, the gas heat and cooling will be disabled until
the condition is corrected. These are 24 volt terminals
powered internally, do not apply another voltage source
to these terminals.
THERMOSTAT
R
Y
C
NEU
Furnace Integrated
Control Module
Remote
Condensing Unit
(Single-Stage Cooling)
Dehumidistat
[Optional]
R
Thermostat - Single-Stage Heatingwith Single-Stage Cooling
Figure 32
T
O
USE
A
SINGLE
-
STAGE
H
EAT
T
HERMOSTAT
, DIP
SWITCH
#13
ON
THE
FURNACE
CONTROL
BOARD
MUST
BE
SET
TO
THE
OFF
POSITION
.
IMPORTANT NOTE
THERMOSTAT
R
Y
C
Furnace Integrated
Control Module
Remote
Condensing Unit
(Single-Stage Cooling)
Dehumidistat
[Optional]
NEU
R
Thermostat - Two-Stage Heating with Single-Stage Cooling
Figure 33
Содержание DC97MC
Страница 63: ...63 THIS PAGE LEFT INTENTIONALLY BLANK...