Ra Range - Lennox WA Series Installation, Operating And Maintenance

RA - REFRIGERATION CIRCUIT
REFRIGERANT DRAWING
RA 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
Pressure transducers HP & BP
04b
05a
Low and High pressure
05b manometer
06a Suction and discharge isolation
06b valves
VARIANTS
BASIC UNIT STD/LN/HE/
01/03/04a/04b/08
/09/10/11/12/18/
19
Installation - Operation - Maintenance manual (IOM) • AIR COOLED CHILLERS & SPLIT UNITS - 0105-E
07a
07b
08
09
10
11
Size 370
WA unit
CE or UDT
SLN
Add 02 07a or 07b
Safety valve CE or UDT
Air cooled condenser
Fan motor
Manual isolating valve
Filter drier
HP/LP
pressure
gauges
Add 05a & 05b
12 Solenoïd valve
13 Sight glass
18 Suction temperature sensor
19
External temperature sensor
Heating resistance (option)
OPTIONS
Suction and
discharge Sight glass
isolating valve
Add 06a & 06b Add 13
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