(2) Target low-pressure and high-pressure control
In order to make the evaporation pressure of the indoor unit at the proper pressure on a variety of operations,
capacity of the compressor will be controlled by low-pressure sensor of the outdoor unit.
In order to make the condensation pressure of the indoor unit at the proper pressure on a variety of operations,
capacity of the compressor will be controlled by high-pressure sensor of the outdoor unit.
Target low-pressure and high pressure temperature depends on system capacity, capacity of compressor operation,
pipe length, and capacity shift switch settings.
<Cooling>
<Heating>
02-03
2-2-3
Speed Range of Start, Stop, And Operation
On stop mode : 0 rps
On operating mode : 20 - 100 rps
(1) Cooling starting process
For cooling operation only, the upper limit speed at starting is made 50rps and is raised in
+10rps increments every 60 seconds.
S
pe
ed
Time
0
50rps
60sec
Target speed
60
sec
60sec
60rps
70rps
80rps
60sec
120
sec
180
sec
240
sec
90rps
10rps
10rps
The compressor operates at the upper limit speed if the target speed is higher than the upper limit speed.
The compressor operates at the target speed if the target speed is lower than the upper limit speed.
60sec
10rps
Summary of Contents for ARXB07LALH
Page 1: ...Small VRF system for light commercial and home use SERVICE MANUAL...
Page 2: ......
Page 6: ......
Page 7: ...1 TEST RUN...
Page 8: ......
Page 27: ...2 OUTDOOR UNIT OPERATION CONTROL...
Page 28: ......
Page 42: ......
Page 43: ...3 INDOOR UNIT OPERATION...
Page 44: ......
Page 63: ...4 TROUBLE SHOOTING...
Page 74: ......
Page 171: ...5 APPENDING DATA UNIT...
Page 172: ......
Page 174: ...05 02 5 2 WIRING DIAGRAM 5 2 1 Indoor Unit MODELS AUXB07 09 12 14 18 24LALH...
Page 175: ...05 03 MODELS AUXD18 24LALH AUXA30 36 45 54LALH...
Page 176: ...05 04 MODELS ARXB07 09 12 14 18LALH...
Page 177: ...05 05 MODEL ARXB24LATH MODELS ARXB30 36LATH...
Page 178: ...05 06 MODEL ARXB45LATH...
Page 179: ...05 07 MODEL ARXA24LATH MODELS ARXA30 36 45LATH...
Page 180: ...MODELS ARXC36 45LATH 05 08...
Page 181: ...05 09 MODELS ARXD07 09 12 14 18 24LATH...
Page 182: ...MODELS AB A12 14 18 24LBTH 05 10...
Page 183: ...05 11 MODELS AB A30 36 45 54LBTH...
Page 184: ...MODELS AS A07 09 12 14LACH 05 12...
Page 185: ...MODELS AS E07 09 12 14LACH 05 13...
Page 186: ...MODELS AS A18 24 30LACH 05 14...
Page 187: ...05 15 MODELS AJ A36 45 54LALH 5 2 2 Outdoor Unit...
Page 192: ......
Page 193: ...6 DISASSEMBLY PROCESS...
Page 194: ......