2-4-2 Compressor speed control
(1) Speed range and controlling
- On operation range: 20 - 115 rps *
- Changing interval: 60 sec.
- When the multi connection outdoor unit has the same type of compressor, all of compressors rotational speed are controlled with the
same speed at the normal operating condition.
- All of the outdoor unit compressors must start at the start-up process.
[rps]
[sec]
60
60
120
180
90
Hold 60 seconds
Normal control starts
- The lower limit speed at start-up changes depending on the outdoor temperature
[rps]
[ ]
- 10
24(20)
7
21
74(60)
37(30)
3.80MPa
Maximum speed: 80rps
Maximum speed: 90rps
Outdoor temperature
- Cold Start start process
Condition: Outdoor temperature below 21 (69.8 F) and the system stopped for more than 1 hour]
[rps]
[sec]
1 min or Max.15 min.
Normal control starts
- The Normal start process (Except the condition of Cold start)
The first target speed is decided by indoor unit capacity demand.
The upper limit speed at starting is made 60 rps and is raised in 30 rps to 90 rps after 60 seconds.
(The upper speed limit depends on the operating high pressure value)
30 sec.
10 sec.
Hold
Control HP*
Process 1
Process 2
Process 3
Control HP*: Change the rps so that high pressure does not reach to protection condition
65cc (79cc) type compressor
(551psi)
115
* The maximum speed: 115 rps
Cooling (Cooling main) 100rps
Heating (Heating main) 115rps
3. MPa
(471psi)
02-04
Summary of Contents for Airstage UTP-RU01AH
Page 1: ...SERVICE MANUAL 208 230V 60Hz ...
Page 5: ...1 TEST RUN ...
Page 6: ......
Page 34: ...2 OUTDOOR UNIT OPERATION CONTROL ...
Page 59: ...3 INDOOR UNIT OPERATION ...
Page 60: ......
Page 82: ......
Page 83: ...4 TROUBLE SHOOTING ...
Page 84: ......
Page 186: ...04 96 0 24 AOUA120 208 230 AOUA72 90 0 19 RED WHITE BLACK U V W ...
Page 208: ...5 APPENDING DATA UNIT ...
Page 209: ......
Page 215: ...CASSETTE TYPE MODELS AUUB18TLAV AUUB24TLAV AUUB30TLAV AUUB36TLAV 05 06 ...
Page 217: ...MEDIUM STATIC PRESSURE DUCT TYPE MODEL ARUM24TLAV 05 08 MODEL ARUM30TLAV ARUM36TLAV ...
Page 218: ...HIGH STATIC PRESSURE DUCT TYPE MODELS ARUH36TLAV ARUH48TLAV ARUH60TLAV 05 09 ...
Page 219: ...FLOOR CEILING TYPE MODELS ABUA12TLAV ABUA14TLAV ABUA18TLAV ABUA24TLAV 05 10 ...
Page 220: ...CEILING TYPE MODELS ABUA30TLAV ABUA36TLAV INDOOR UNITS INDOOR UNITS 05 11 ...
Page 221: ...WALL MOUNTED TYPE MODELS ASUA7TLAV ASUA9TLAV ASUA12TLAV ASUA14TLAV 05 12 ...
Page 222: ...MODELS ASUB18TLAV ASUB24TLAV 05 13 ...
Page 224: ...MODEL UTP RU01AH MODEL UTP RU01BH 5 2 3 RB Unit 05 15 ...
Page 225: ...MODEL UTP RU01CH 05 16 ...
Page 226: ...MODEL UTP RU04BH 05 17 ...
Page 227: ...MODELS AAUA48TLAV 5 2 4 Outdoor Air Unit 05 18 MODELS AAUA72TLAV ...
Page 228: ...MODELS AAUA96TLAV 05 19 ...
Page 230: ...6 DISASSEMBLY PROCESS ...
Page 245: ......