Unicla UWX440, Руководство по установке

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12. Unicla oil injector part no. OIRA803
Unicla oil injector can be used to
add additional system oil during the
evacuation or refrigerant charging
process. Or alternatively any similar
injection device can be used.
13. Discharge line analysis - pressure and temperature
After commissioning a Unicla compressor for the first time, some basic pressure and thermal
loading checks will determine if the operating environment for the compressor is within Unicla
specifications, and whether compressor durability is being maximised. The following chart should
be used as a guide for UWX550 and UWX440 compressors to analyse normally acceptable high
side (discharge/head) pressures and discharge line temperatures for given ambient conditions.
Discharge Line Pressure - Temperature Chart - Unicla UWX compressors
Ambient Ideal Discharge Pressure Discharge Line Temp ˚C Temp ˚C
Note: Allow 20% tolerance for humidity above 60% relative humidity.
If the system high side pressure or discharge line superheat range is not within these parameters,
reference to the Unicla Service Manual is required, or reference to additional technical information
for specifications and faults regarding condensing to air differentials.
• NR
= not recommended as a continuous running phase, superheat may exceed 40°C, however
specific system design may allow for higher condensing capacity to maximise compressor
durability and performance.
• • NR
= not recommended in most instances, superheat may exceed 50°C, however if condensing
capacity allows for < 50°C superheat, momentary running in this phase may be considered.
If any further assistance or information is required please go to www.unicla.hk
or contact your nearest Unicla dealer.
˚C ˚F kPa PSI 1800rpm 2200rpm 3500rpm Discharge line
Superheat range
15 60 600 - 800 90 - 115 37 - 42 42 - 47 50 - 56 7 - 26
18 65 750 - 950 110 - 135 43 - 52 47 - 58 56 - 70 9 - 34
21 70 900 - 1100 130 - 160 50 - 57 55 - 64 66 - 76 10 - 36
24 75 1050 - 1300 155 - 190 58 - 64 66 - 73 77 - 83 12 - 37
27 80 1200 - 1550 185 - 220 65 - 72 73 - 80 75 - 89 13 - 37
30 85 1400 - 1750 200 - 250 68 - 77 75 - 86 79 - 92 14 - 38
33 90 1500 - 1900 215 - 275 72 - 85 80 - 94 89 - 97 14 - 39
35 95 1700 - 2100 245 - 300 77 - 90 86 - 98 93 - 102 15 - 40
38 100 1850 - 2250 265 - 325 85 - 92 94 - 102
• NR 17 > 40
41 105 200 - 2400 290 - 350 88 - 97 97 - 108
• NR 18 > 40
44 110 2250 - 2650 325 - 385 92 - 102
• NR • • NR 18 > 50
47 115 2500 - 2900 370 - 420 102 - 110
• NR • •NR 20 > 50
8.