Electrical Connections - Lennox ASC Series Installation, Operating And Maintenance Manual

2. INSTALLATION

2.7.- ELECTRICAL CONNECTIONS

- BEFORE MAKING ANY ELECTRICAL CONNECTIONS, ENSURE THAT ALL CIRCUIT BREAKERS ARE OPEN.
- IN ORDER TO MAKE THE ELECTRICAL CONNECTIONS, FOLLOW THE ELECTRICAL DIAGRAM SUPPLIED WITH THE
UNIT.
INDOOR SECTION
RS
HR/T
Note: The length of all cables for connection with indoor unit
must be less than 65 m.
CONNECTION OF CONTROL ELEMENTS:
COMPONENT
Discharge sensor
DS
OS Outdoor sensor
AS Remote ambient sensor
Remote duct sensor
RS
RS HR/T Duct remote sensor for enthalpic free-cooling
CO2 Air quality probe. (Available only with enthalpic
CO2
free-cooling)
DPT Air differential pressure transducer
OS HR/T Outdoor sensor for enthalpic free-cooling
Remote ambient sensor for enthalpic free-cooling
AS HRT
DIFS Dirty fi lter sensor
LDRP Long distance connection
DADS Smoke detector
Hot water coil
BAC
VOLTAGE OPERATING LIMITS: 342-462V
• 22 •
RS
6
Electrical box
AS
OS
OS
HR/T
Installation, Operation and Maintenance manual • ASC/ASH-MIL152E-1217-01/2019
Air treatment unit. Example
BAC
DPT
DIFS
5
4
1
PT1
PT2
OUTDOOR SECTION
Condensing
Split unit
unit
N/A
STANDARD STANDARD
N/A
OPTION
DS
DADS
LDRP
3
2
To connect by installer
2 x 1 mm² (shielded)
6G x 1 mm² (shielded)
4 x 1 mm² (shielded)
3 x 1 mm² (shielded)
5 x 1 mm² (shielded)
6G x 1 mm² (shielded)
2 x 1,5 mm²
3 x 1,5 mm² (units 1 circuit)
2 x (3 x 1,5 mm²) (units 2 circuits)
7 x 1,5 mm²
5 x 1,5 mm²