SiE25-110
Function Details
Function and Operation
85
4.2.9 Compressor step control
Compressor operation frequency is controlled with the following steps in order to make
evaporating temperature constant when cooling and make condensing temperature constant
when heating.
The target temperature of evaporation (Tes) in cooling varies within the range of 2˚C
≤
Tes
≤
20˚C in accordance with
∆
Trs and indoor air conditioning load.
The target temperature of condensation (Tcs) also varies within the range of 42˚C
≤
Tcs
≤
51˚C.
4.2.10 Motorized valve PI control
When cooling/heating, PI control of motorized valve is conducted to make heat exchanger outlet
superheat degree (SH) constant in order to utilize outdoor unit heat exchanger (evaporator)
fully.
SH=R4T-Te
Te: Low pressure equivalent saturation temperature (˚C)
R4T: Suction pipe temperature (˚C)
[When slight wet operation]
Target heat exchanger outlet superheat degree
>
Heat exchanger outlet superheat degree
→
Motorized valve closes
[When slight overheat operation]
Target heat exchanger outlet superheat degree
<
Heat exchanger outlet superheat degree
→
Motorized valve opens
The initial value of target heat exchanger outlet superheat degree is 5˚C, however, it varies
depending on change of discharge pipe superheat degree of inverter compressor, etc.
Step No.
Compressor operation frequency
Model RZP71D
Model RZP100 ~ 140D
1
41Hz
52Hz
2
45Hz
57Hz
3
48Hz
62Hz
4
53Hz
68Hz
5
58Hz
74Hz
6
63Hz
81Hz
7
68Hz
88Hz
8
74Hz
96Hz
9
81Hz
104Hz
10
88Hz
110Hz
11
96Hz
116Hz
12
104Hz
124Hz
13
113Hz
133Hz
14
123Hz
143Hz
15
134Hz
158Hz
16
145Hz(upper limit when heating)
165Hz(upper limit when cooling)
17
156Hz
177Hz(upper limit when heating: RZP100,
125D)
18
172Hz(upper limit when cooling)
189Hz
19
—
202Hz(upper limit when heating: RZP140D)
Summary of Contents for SkyAir Super Inverter 70 D Series
Page 11: ...SiE25 110 2...
Page 15: ...Model Name and Power Supply SiE25 110 6 Model Name and Power Supply...
Page 16: ...SiE25 110 Functions 7 Part 2 Functions 1 List of Functions 8 1 1 Functions 8...
Page 31: ...Specifications SiE25 110 22 Specifications...
Page 35: ...Wired Remote Controller SiE25 110 26 Remote Controller 1 2 Installation...
Page 36: ...SiE25 110 Wired Remote Controller Remote Controller 27...
Page 39: ...Wireless Remote Controller SiE25 110 30 Remote Controller...
Page 63: ...Settings Concerning Maintenance SiE25 110 54 Field Setting FUYP...
Page 64: ...SiE25 110 Settings Concerning Maintenance Field Setting 55 FHYP...
Page 65: ...Settings Concerning Maintenance SiE25 110 56 Field Setting FAYP...
Page 67: ...Settings Concerning Maintenance SiE25 110 58 Field Setting RZP100 125DV1 E RZP100DVAL E...
Page 68: ...SiE25 110 Settings Concerning Maintenance Field Setting 59 RZP125 140DTAL...
Page 107: ...Operation Range SiE25 110 98 Function and Operation 5 Operation Range 5 1 Operation Limits...
Page 133: ...Procedure of Self Diagnosis by Remote Controller SiE25 110 124 Troubleshooting...
Page 238: ...SiE25 110 Piping Diagrams Appendix 229 1 2 Twin System RZP100D RZP125D 3D034162...
Page 241: ...Wiring Diagrams SiE25 110 232 Appendix FUYP71BV1 FUYP100BV1 FUYP125BV1 3D027747...
Page 242: ...SiE25 110 Wiring Diagrams Appendix 233 FAYP71BV1 FAYP100BV1 3D027748...
Page 243: ...Wiring Diagrams SiE25 110 234 Appendix 2 2 Outdoor Units 2 2 1 50Hz RZP71DV1 3D032604...
Page 244: ...SiE25 110 Wiring Diagrams Appendix 235 RZP100DV1 RZP125DV1 3D032603...
Page 245: ...Wiring Diagrams SiE25 110 236 Appendix 2 2 2 60Hz RZP71DVAL 3D032880B...
Page 246: ...SiE25 110 Wiring Diagrams Appendix 237 RZP100DVAL 3D032881B...
Page 247: ...Wiring Diagrams SiE25 110 238 Appendix RZP125DTAL RZP140DTAL 3D032882B...
Page 251: ...SiE25 110 iv Index...