Amana CVM97 Series, Installation Instruction

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30
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
W1 W2 Y2
Furnace Integrated
Control Module
Remote
Condensing Unit
(Two-Stage Cooling)
Dehumidistat
[Optional]
Y2
NEU
W1 W2 Y2
Field installed jumper
to enable cooling
ramping profile when
using a straight
cooling unit.
Thermostat - Two-Stage Heating with Two-Stage Cooling
Figure 34
S
ET
DIP
SWITCH
#14
TO
ON
POSITION WHEN USING A
2-
STAGE
COOLING THERMOSTAT
.
IMPORTANT NOTE (COOLING SETUP)
S
INGLE
-S
TAGE
H
EATING
T
HERMOSTAT
A
PPLICATION
A single-stage thermostat with only one heating stage may be
used to control this furnace.
To use a single-stage thermostat, turn off power to the fur-
nace, move the thermostat selection DIP switch to the OFF
position. Turn power back on. Refer to the DIP switch chart
in this manual.
24 V
OLT
D
EHUMIDISTAT
W
IRING
The optional usage of a dehumidistat allows the furnace’s
circulator blower to operate at a slightly lower speed (85% of
desired speed) during a combined thermostat call for cooling
and dehumidistat call for dehumidification. This can be done
through an independent dehumidistat or through a thermostat’s
DEHUM terminal (if available). This lower blower speed en-
hances dehumidification of the conditioned air as it passes
through the AC coil. For proper function, a dehumidistat ap-
plied to this furnace must operate on 24 VAC and utilize a
switch which
opens on humidity rise. Refer to the “Thermo-
stat Wiring Diagrams” figure for additional wiring details.
To install/connect a dehumidistat:
1. Turn OFF power to furnace.
2. Secure the dehumidistat neutral wire (typically the white
lead) to the terminal marked “DEHUM” on the furnace
integrated control module.
3. Secure the dehumidistat hot wire (typically the black
lead) to the 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.
5. If the condenser is a straight cooling unit, install a
jumper from Y1 to 0 on the furnace board.
6. Turn ON power to furnace.
To enable the dehumidify function on the integrated control mod-
ule, set the dehumidification ENABLE DIP switch from OFF to
ON.