Hitachi RAF-25NH4 Données Techniques page 139

When one unit is operated for heating:
Unit 1
Unit 2
Cooling output
Heating output
Turns on
for cooling
Turns on
for heating
Outdoor fan
97¼C
OH
94¼C
temperature
Compressor
rotation speed
520
480
Unit 1
0
520
480
Unit 2
250
PCLOSH
0
When one unit is operated for cooling:
Unit 1
Unit 2
Cooling output
Heating output
Turns on
for cooling
Turns on
for heating
Outdoor fan
97¼C
OH
94¼C
temperature
Compressor
rotation speed
520
480
Unit 1
0
520
480
Unit 2
0
¥ PCLOSCH is EEPROM data.
※
¥ See other sections for details of expansion valve TD control, ÆN correction and distribution control.
30s 30s
Decreases by 100 min -1
Target speed decreases
20s 20s
Hold
Hold 500ms
Opens by 20 pulses / 20s
30s 30s
Decreases by 100 min -1
Target speed decreases
20s
Hold
Hold 500ms
30s
/30s
OH ≦ 97℃, current speed ≦ previous speed
30s
/30s
OH ≦ 97℃, current speed ≦ previous speed
158
30s 30s 30s
Increases by 50 min -1 /30s
20s 20s 20s
PCLOSH
30s 30s 30s
Increases by 50 min /30s
-1
20s 20s