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.
Summary of Contents for UWX440
Page 1: ...UWX550 and UWX440 Installation Guidelines...
Page 13: ...Notes...
