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EL23XCV Thermostat Control Options
Thermostat Type Indoor Unit Type
Qty. of
Wires to
EL23XCV
EL23XCV
Terminal Strip
Connections
Unit Operation
Field Wiring
Diagram
S30/S40
Communicating
Thermostat
Comunicating Gas
Furnace or Air Handler
4 R, I+, I-, C
Fully Communicating Variable Capacity
Operation Based Upon Thermostat Demand
Figure 15
Conventional 24VAC
2-Stage Cooling
Thermostat
(non-communicating)
Any Furnace or Air
Handler
(non-communicating
or communicating)
4 R, C, Y1, Y2
Full Variable Capacity Operation Controlled
by EL23XCV Unitary Control Using Suction
Pressure
Figure 16
Conventional 24VAC
Single-Stage Cooling
Thermostat
(non-communicating)
Any Furnace or Air
Handler
(non-communicating
or communicating)
3
R, C, Y1
(Jumper Y1 to Y2)
Full Variable Capacity Operation Controlled
by EL23XCV Unitary Control Using Suction
Pressure
Figure 16
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.
NOTE — Units are approved for use only with copper conductors.
Ground unit at disconnect switch or to an earth ground.
SIZE CIRCUIT AND INSTALL SERVICE
DISCONNECT SWITCH
NOTE — 24VAC, Class II circuit connections are made in the control
panel.
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
5 FEET
(1.5M)
INSTALL THERMOSTAT
SERVICE
DISCONNECT
SWITCH
MAIN FUSE BOX/
BREAKER PANEL
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