12-2
CONTROL SYSTEM
SM PNXDCI 1-A.1 GB
Target frequency limits as a function of outdoor air temperature (OAT):
OAT Range
Cooling Mode limits
Heating Mode limits
OAT < 6
MaxFreqAsOATC
No limit
6
≤
OAT < 15
MaxFreqAsOAT1H
15
≤
OAT < 28
MaxFreqAsOAT2H
28
≤
OAT
No limit
12.1.3.2 Target Frequency Setting for GC 24 / 30
The compressor Target Speed is calculated according to the following formula:
127
,
max
arg
ODUNload
MaxSpeed
MinSpeed
Speed
et
T
load
MiniSpeed, MaxSpeed
are defined as following:
When the unit is in the cool mode,
MiniSpeedC =
15
Hz, MaxSpeed =
75
Hz
When the unit is in the heat mode,
MiniSpeedH =
20
Hz, MaxSpeed =
95
Hz
ODU NLOAD
is caculated according to the IDU NLoad:
127
,
*
3
min
ODUCode
IDUNLOAD
NLOAD
ODU
OAT
ODUCodeC
ODUCodeC
IDUNLOAD
≤-5
3
3
Refer to sect.112.1.2.1
≤-5
3.8
3
12.1.4
Frequency Changes Control
When the unit is running normally , the compressor frequency change rate is 1 Hz/sec.
12.1.5
Compressor Starting Control
12.1.5.1 Compressor starting control for GC 18 / 21 / 24 Z
Time
Step1
Step2
Step3
Min 10 Minutes
1
Minute
1
Minute
CONTENTS
Содержание PNX 12 DCI
Страница 16: ...4 3 OUTLINE DIMENSIONS SM PNXDCI 1 A 1 GB 4 5 Outdoor Unit GC 24 Z DCI CONTENTS...
Страница 108: ...14 4 EXPLODED VIEWS AND SPARE PARTS LISTS SM PNXDCI 1 A 1 GB 14 4 Outdoor Unit GC 9 12 DCI CONTENTS...
Страница 110: ...14 6 EXPLODED VIEWS AND SPARE PARTS LISTS SM PNXDCI 1 A 1 GB 14 6 Indoor Unit PNX 18 21 24 DCI CONTENTS...
Страница 114: ...14 10 EXPLODED VIEWS AND SPARE PARTS LISTS SM PNXDCI 1 A 1 GB 14 10 Outdoor Unit GC 18 DCI CONTENTS...
Страница 116: ...14 12 EXPLODED VIEWS AND SPARE PARTS LISTS SM PNXDCI 1 A 1 GB 14 12 Outdoor Unit GC 21 DCI CONTENTS...
Страница 118: ...14 14 EXPLODED VIEWS AND SPARE PARTS LISTS SM PNXDCI 1 A 1 GB 14 14 Outdoor Unit GC 24 Z DCI CONTENTS...
Страница 121: ...16 1 APPENDIX A SM PNXDCI 1 A 1 GB APPENDIX A INSTALLATION AND OPERATION MANUALS CONTENTS...