13
24 Volt Thermostat Wiring - Non-Communicating Thermostat
Connections
NOTE:
Wire routing must not interfere with the circulator blower
operation or routine maintenance.
The air handler’s integrated control module provides terminals
for “Y1” and “Y2” and “W1” and “W2” thermostat connections.
This allows the air handler to support the systems shown in
the following table. Refer to the following figures for typical
connections to the integrated control module. Thermostat wiring
entrance holes are located in the top of the blower. Wire routing
must not interfere with circulator blower operation or routine
maintenance.
NOTE:
A removable plug connector is provided with the control
to make thermostat wire connections. This plug may be removed,
wire connections made to the plug, and replaced. It is strongly
recommended that you do not connect multiple wires into a single
terminal. Wire nuts are recommended to ensure one wire is
used for each terminal. Failure to do so may result in intermittent
operation.
COOLING HEAT PUMP HEATING ELECTRIC HEATING
1-STAGE
------
1- or 2-STAGE
2-STAGE
------
1- or 2-STAGE
1-STAGE
1-STAGE
------
2-STAGE
2-STAGE
------
1-STAGE
1-STAGE
1- or 2-STAGE
2-STAGE
2-STAGE
1- or 2-STAGE
Air Handler Integrated
Control Module
Typical Single-Stage Cool,
Single-Stage Heat Thermostat
Dehumidistat
[Optional]
Remote Condensing Unit
(Single-Stage AC)
NEU
HOT
1 2 R
C
G
W1
Y1 Y2
O
DEHUM
R
C
G
W1
Y1
R
C
Y
Place Jumper Between Y1
and O for Proper
Dehumidification Operation
and Proper Ramping
Profile Operation
W2
Typical Single-Stage Cooling with Single-Stage Heating
Figure 14
Air Handler Integrated
Control Module
Typical Two-Stage Cool,
Two-Stage Heat Thermostat
Dehumidistat
[Optional]
Remote Condensing Unit
(Two-Stage AC)
NEU
HOT
1 2 R
C
G
W1 W2
Y1 Y2
O
DEHUM
R
C
G
W1 W2
Y1 Y2
R
C
Y1 Y2
Place Jumper Between Y1
and O for Proper
Dehumidification Operation
and Proper Ramping
Profile Operation
TYPICAL TW0-STAGE COOLING WITH TWO-STAGE
HEATING
Figure 15
1 2 R
C
Air Handler
Integrated Control Module
Typical Single-Stage Cool,
Single-Stage Heat
Heat Pump Thermostat
Dehumidistat
[Optional]
G
W1 W2
Y1 Y2
O
DEHUM
Remote Condensing Unit
(Single-Stage HP)
NEU
HOT
W/E
R
C
G
Y1
O
R
C
W1
Y
O
Typical Single-Stage Heat Pump with
Auxiliary/Emergency Heating
Figure 16
1 2 R
C
Air Handler
Integrated Control Module
Typical Two-Stage Cool,
Two-Stage Heat
Heat Pump Thermostat
Dehumidistat
[Optional]
G
W1 W2
Y1 Y2
O
DEHUM
Remote Condensing Unit
(Two-Stage HP)
NEU
HOT
W/E
R
C
G
W2
Y1 Y2
O
R
C
W1
Y1 Y2
O
Typical Two Stage Heat Pump heating and
Auxiliary/Emergency Heating
Figure 17
The optional usage of a dehumidistat allows the air handler’s
circulator blower to operate at a slightly lower speed during
a combined thermostat call for cooling and dehumidistat call
for dehumidification. This lower blower speed enhances
dehumidification of the conditioned air as it passes through the
AC coil. For proper function, a dehumidistat applied to this air
handler must operate on 24 VAC and utilize a switch which opens
on humidity rise.
Содержание DV PTC 14 Series
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