Lennox WA Series User Manual

Installation - Operation - Maintenance manual (IOM) • AIR COOLED CHILLERS & SPLIT UNITS - 0105-E • 63 •
ECOLOGIC - REFRIGERATION CIRCUIT
REFRIGERANT DRAWING
WA STD – LN - HE – SLN
REFRIGERATION CIRCUIT COMPONENTS
01
1st & 2nd scroll compressors
08
Air cooled condenser
15
Expansion valve bypass
for low ambient operation
02
3rd scroll compressor on size 370
STD/LN/HE & SLN
09
Fan motor
16
Electronic expansion valve
03
High pressure switch
10
Manual isolating valve
17
Evaporator heat
exchanger
04a 04b
Pressure transducers HP & BP
11
Filter drier
18
Suction temperature
sensor
05a 05b
Low and High pressure manometer
12
Solenoid valve
19
External temperature
sensor
06a 06b
Suction and discharge isolation
valves
13
Sight glass
Heating resistance (option)
07a 07b
Safety valve CE or UDT
14
Thermostatic expansion valve
VARIANTS EXPANSION DEVICE OPTIONS
BASIC UNIT
Size 370
STD/LN/H
E/SLN
WA unit
CE or UDT
Thermosta
tic
expansion
valve
Thermosta
tic
expansion
valve + low
ambient
Electronic
expansion
valve
HP/LP
pressure
gauges
Suction
and
discharge
isolating
valve
Sight glass
01/03/04a/04b08/0
9/10/11/17/19
Add 02 07a or 07b
Add 14 &
12
Add 14, 12
& 15
Add 16 &
18
Add 05a &
05b
Add 06a &
06b
Add 13

Lennox WA Series Specifications

General

Brand	Lennox
Model	WA Series
Category	Chiller
Language	English