Lennox CIC 020S Installation, Operation & Maintenance Manual page 19

2. INSTALLATION
FREE-COOLING
AS
5x1 Shielded
HR/T
2x1 Shielded
AS
2x1 Shielded
OS
OS
5x1 Shielded
HR/T
To be wired by the
installer
The drawings show the top
view
DS Discharge sensor
OS Outdoor sensor
AS Remote ambient sensor
Duct sensor
RS
RS HR/T Duct remote sensor
CO2 CO Air quality probe
2
DPT Air differential pressure transducer
Outdoor sensor
OS HR/T
AS HR/T Remote ambient sensor
DM Damper actuator
THERMOSTATIC AND ENTHALPIC FREE-COOLING WITH RETURN FAN
OUTDOOR UNIT
2x1 Shielded
5x1.5 (Standard version)
ELECTRICAL BOX
2x1 Shieled
RS
HR/T
RETURN AIR
RS
3x1 Shielded
RFM Return fan motor
CIC/CIH 055D TO 140D
6x1.5+4x2.5 (With EFM)
MIXING SECTION
RETURN SECTION
DM
DUCT
CO
RFM
2
4X2.5
ELECTRICAL
BOX
Thermostatic
Option
it replaces AS
N/A
N/A
Option
N/A
N/A
18
DISCHARGE
AIR
INDOOR UNIT
3x1
FM
DM
DPT
FRESH AIR
INTAKE
3x1 Shielded
4X2.5
Free-Cooling
Standard
Standard
Standard
It replaces AS HR/T
FM Indoor fan motor
DS
DISCHARGE AIR
DUCT
AIR FILTER
Enthalpic
N/A
Option
Option
Option
Standard
Standard