Lennox EL23XCV Series Manual page 26

Thermostat Type Indoor Unit Type
S30/S40
Comunicating Gas
Communicating
Furnace or Air Handler
Thermostat
Conventional 24VAC Any Furnace or Air
2-Stage Cooling
Thermostat (non-communicating
(non-communicating) or communicating)
Conventional 24VAC Any Furnace or Air
Single-Stage Cooling
Thermostat (non-communicating
(non-communicating) or communicating)
SIZE CIRCUIT AND INSTALL SERVICE
DISCONNECT SWITCH
Refer to the unit nameplate for minimum circuit ampacity, and maximum
fuse or circuit breaker (HACR per NEC). Install power wiring and properly
sized disconnect switch.
MAIN FUSE BOX/
BREAKER PANEL
SERVICE
DISCONNECT
SWITCH
NOTE — Units are approved for use only with copper conductors.
Ground unit at disconnect switch or to an earth ground.
EL23XCV Thermostat Control Options
Qty. of
Wires to
EL23XCV
4
Handler
4
Handler
3
EL23XCV
Terminal Strip
Connections
Fully Communicating Variable Capacity
R, I+, I-, C
Operation Based Upon Thermostat Demand
Full Variable Capacity Operation Controlled
R, C, Y1, Y2 by EL23XCV Unitary Control Using Suction
Full Variable Capacity Operation Controlled
R, C, Y1
by EL23XCV Unitary Control Using Suction
(Jumper Y1 to Y2)
INSTALL THERMOSTAT
Install room thermostat (ordered separately) on an inside wall
approximately in the center of the conditioned area and 5 feet (1.5m) from
the floor. It should not be installed on an outside wall or where it can be
affected by sunlight or drafts.
THERMOSTAT
NOTE — 24VAC, Class II circuit connections are made in the control
panel.
Page 26
Unit Operation
Pressure
Pressure
5 FEET
(1.5M)
Field Wiring
Diagram
Figure 15
Figure 16
Figure 16