1 INDOOR UNIT
1a Shown with Optional Hot Gas Re-Heat (HGRH):
Sizes 6 - 35 comprising: Coil, Check Valve & 3 Way
Solenoid Valve
1b Shown with Optional Hot Gas Re-Heat (HGRH):
Sizes 40 - 60 comprising: Coil, Check Valve & 2 x 2 way
Solenoid Valves (1 NC and 1 NO)
1c Shown with Optional Suction Throttle Valve, optional EEV
standard with Suction Throttle Valve selection
2 Evaporator Coil
3 Schrader Point
4 Liquid Expansion Line
5 Thermostatic Expansion Valve (TEV) - Standard
6 Equalisation Line - Standard with TEV - Standard
7 Electronic Expansion Valve (EEV) - Optional in place of
TEV and standard with Suction Throttle Valve option
8 Sight Glass
9 Head Pressure Transducer
10 Filter Drier (Supplied Loose)
11 Discharge Line
12 High Pressure Switch
13 Scroll Compressor
14 Additional Scroll Compressor (Tandem Set), Suction
Throttle Valve not available with Tandem set
15 Low Pressure Switch
16 Suction Pressure Transducer - With Optional EEV
17 Temperature Transmitter - With Optional EEV
18 TEV Bulb - Standard with TEV
19 Suction Line
20 Hot Gas Re-Heat Option
21 Suction Throttle Valve; not available with HGRH and not
available with Tandem Scroll units (Sizes 20X2 - 26X2 &
50X2 - 60X2)
22 Temperature Sensor - Discharge Gas (Sizes 28X - 45X &
50X2 - 60X2)
23 MATCHED OUTDOOR CONDENSER
24 Shut Off Valve (Supplied loose) - Optional with Outdoor
Units
25 Liquid Line
26 Condenser Coil & Fan
System Pipework Schematic
X Type
Design should be in accordance with good refrigeration practice to ensure good oil return to the compressor under all
normal operating conditions to prolong the life of your unit.
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