Lennox LCH036 Installation Instructions Manual page 158

24
THERMOSTAT
VAC
G W1 W2 Y1 Y2 O
R C
2A2 (2HT/2C)
THERMOSTAT
R
C
G
W1
W2
Y1
Y2
O
2-Zone Sensor Mode ECTO 6.01 Option 1, 2, or 3-
The Unit Controller will operate up to four stages of
heating and cooling based on the Unit Controller
internal setpoints and the temperature from the A2
zone sensor. An optional Network Control Panel (NCP)
can also be used to provide setpoints. A thermostat or
24 VOLT FIELD WIRING IN THERMOSTAT MODE
(Unit Controller in default T'Stat System Mode 6.01 Option 0)
UNIT CONTROLLER
G
L
C P O
NOTE - ON ELECTRO-ME­
CHANICAL THERMOSTATS SET
ANTICIPATOR AT 0.1 AMPS.
Not all terminals
are provided on
all thermostats.
24 VOLT FIELD WIRING IN ZONE SENSOR MODE
(Unit Controller in Zone Sensor Mode ECTO 6.01 option 1, 2, 3)
SENSOR
24VAC
IAQ
R C
AI1
UNIT CONTROLLER
SMOKE
24VAC
DI1 R
FIGURE 17
return air sensor can be used as a back-up mode. Refer
to the Unit Controller manual provided with each unit to
change ECTO options. See figure 18 for field wiring.
Note - Install sensor and make communication wiring
connections as shown in literature provided with sensor.
UNIT CONTROLLER
SENSOR OUTPUTS
HUM
TMP
D01
A2 SENSOR
FIGURE 18
Page 14
HUMIDISTAT
INPUTS
DI4 C
C DI2 R DI3 R
Install optional A42
Phase Monitor and/or
S149 Overflow Control
D02
LGH/LCH420, 480, 540, 600