Lennox CMC 020S Installation, Operating And Maintenance Manual page 25

2.- INSTALLATION
2.8.- OPTIONS INSTALLATION
THERMOSTATIC AND ENTHALPIC FREE-COOLING WITHOUT RETURN FAN CMC/CMH 020S TO 045D
5x1 Shielded
AS
HR/T
2x1 Shielded
AS
2x1 Shielded
OS
OS 5x1 Shielded
HR/T
THERMOSTATIC AND ENTHALPIC FREE-COOLING WITHOUT RETURN FAN CMC/CMH 055D TO 085D
AS 5x1 Shielded
HR/T
2x1 Shielded
AS
2x1 Shielded
OS
5x1 Shielded
OS
HR/T
DS (Discharge sensor).
OS (Outdoor sensor).
AS (Remote ambient sensor).
RS (Duct sensor).
RS HR/T (Duct remote sensor).
CO (CO Air quality probe).
2 2
DPT (Air differential pressure transducer).
OS HR/T (Outdoor sensor).
AS HR/T (Remote ambient sensor).
DM: Damper actuator.
OUTDOOR UNIT
2x1 Shielded
ELECTRICAL
5x1.5 (Standard version)
BOX
2x1 Shielded
EFM
2x1 Shielded
5x1 Shielded
3x1 Shielded
3x1 Shielded
4X1.5
OUTDOOR UNIT
ELECTRICAL
BOX
Free-cooling
Thermostatit Enthalpic
Standard Standard
Standard Standard
Standard Standard
OPT (It re-
N/A
places AS)
OPT (It replaces
N/A
AS/HR/T)
N/A Optional
Optional Optional
N/A Standard
N/A Standard
3x1 Shielded
EFM: Exhaust fan motor.
6x1.5+3x1.5 (With EFM)
ELECTRICAL
BOX
3x1.5
FRESH AIR
INTAKE
RS
RS
HR/T
RETURN
AIR DUCT
CO
2
2x1 Shielded
5x1.5 (Standard version)
2x1 Shielded
MIXING
SECTION
EFM
RS
HR/T
RETURN
AIR DUCT
RS
CO
2
ELECTRICAL
BOX FRESH AIR
24
AIR FILTER
MIXING INDOOR
SECTION UNIT
FM
DPT
6x1.5+4x1.5 (With EFM)
INDOOR
UNIT
FM
DM
DPT
INTAKE
3x1 Shielded
4X1.5 (4x2.5, 100D model)
FM: Indoor fan motor.
To be wired
by the installer
The drawings show
the side view
≥1m
DS
DISCHARGE
AIR DUCT
o be wired
by the installer
The drawings show
the top view
DS
DISCHARGE
AIR DUCT
AIR FILTER