Refrigeration Circuit Drawings Ecologic Range - Lennox WA Series Installation, Operating And Maintenance

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