Lennox ASC Series Installation, Operating And Maintenance Manual page 10

1. GENERAL CHARACTERISTICS
1.5.- PIPING DRAWINGS
COOLING ONLY UNITS
AIR TREATMENT UNIT. EXAMPLE
Coil
Fan
Expansion valve
Coil
Expansion valve
OPTION ELEMENT
Pressure gauge. (5/16" to be fi tted by the installer)
Discharge sensor
DS
SVL1
Liquid solenoid valve. (long distance option)
To be connected by the installer to air treatment unit.
SVL3
Low pressure switch, circuit 1
LPT1
Low pressure transducer, circuit 2
LPT2
• 9 •
CONDENSING UNIT
ASC 100D/120D/140D
LPT1
C1
Suction accumulator (Low ambient
-15ºC and low noise level option).
Filter drier
Service valve option
LPT2
C2
Suction accumulator (Low ambient -15ºC and
low noise level option).
Filter drier
Service valve option
Installation, Operation and Maintenance manual • ASC/ASH-MIL152E-1217-01/2019
Scroll compressor
Scroll compressor
Scroll compressor
High pressure switch, circuit 1.
HP1
High pressure switch, circuit 2.
HP2
Crankcase heater (Low ambient option)
CH...
High pressure transducer, circuit 1
HPT1
High pressure transducer, circuit 2
HPT2
Outdoor temperature sensor
OS
Fan motor
HPT1
Coil
HPT2
Fan motor
Coil