12-10
CONTROL SYSTEM
SM PNXDCI 1-A.1 GB
12.7.5.2 Heat Sink Overheating Protection For GC 24 / 30
HST
Delta HST
<-2
-2
-1,0,1
2
>2
HST
≥
81
SC
SC
SC
SC
SC
79
≤ HST <
81
D1
D1
D2
D2
D2
75
≤ HST <
79
SR
SR
D1
D2
D2
73
≤ HST<
75
SR
SR
SR
D1
D1
71
≤ HST ≤
73
Norm
Norm
Norm
SR
SR
HST <
71
Norm
12.7.6
System Over Power Protection Only For
GC 24 / 30
Power
Delta PWR
< -2000
[-2000,0)
0
(0,2000]
> 2000
PWR1
PWR2
PWR ≥
3500
PWR ≥
2900
SC
SC
SC
SC
SC
3300
≤PWR <
3500
2750
≤PWR <
2900
D1
D1
D2
D2
D2
3100
≤PWR <
3300
2600
≤PWR <
2750
SR
SR
D1
D2
D2
3000
≤PWR <
3100
2450
≤PWR <
2600
SR
SR
SR
D1
D1
2950
≤PWR ≤
3000
2300
≤PWR ≤
2450
Norm
Norm
Norm
SR
SR
PWR <
2950
PWR <
2300
Norm
There are two sets of OVRPWR values, the selection of the values are set according to the state of
the Power-Shed input.
Power-Shed input open Set values 1
Power-Shed input sort Set values 2
12.7.7
Outdoor Coil Deicing Protection
12.7.7.1 Outdoor coil Deicing Protection For GC 18 / 21 / 24 Z
►
Entering
Deicing
Conditions
Deicing operation will start when either one of the following conditions exist:
Case 1: OCT < OAT – 8 AND TLD > DI
Case 2: OCT < OAT – 12 AND TLD > 30 minutes.
Case 3: OCT is Invalid AND TLD > DI
Case 4: Unit is just switched to STBY AND OCT < OAT – 8
Case 5: NLOAD = 0 AND OCT < OAT -8
Case 6: OCT<-
19
AND TLD>
60
minutes
All this condition will exist during 10 seconds
OCT – Outdoor Coil Temperature
OAT – Outdoor Air Temperature
TLD – Time from Last Deicing
DI – Deicing Interval (Time Interval Between Two Deicing)
Deicing interval time when compressor is first started in heat mode, is 10 minutes if OCT < -2, and
is 40 minutes in other cases.
Deicing interval time is changed (increased/ decreased in 10 minutes steps) as a function of deicing
time. If deicing time is shorter then former deicing time, the deicing interval time will be increased. If
deicing time is longer then former deicing time, the deicing interval time will be decreased.
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...