22
Service Manual
VMH SerieS
Heat Controller, Inc.
8.4.4Number of indoor units – displays how many indoor units the outdoor unit is communicating with.
Display
Quantity of indoor unit
1
1
2
2
3
3
4
4
8.4.5 Opening degree of electronic expansion valve:
Actual opening degree value equals the display data divided 8
8.5 Protection
8.5.1 Three minutes delay at restart for compressor.
8.5.2 Temperature protection of compressor discharge.
When the compressor discharge temp. is getting higher, the running frequency will be limited as below rules:
----If 216°F<T5< 239°F (102°C<T5<115°C), the frequency or the compressor will decrease to a lower level
every 2 minutes until it reaches F1.
---If T5>239°F(T5>115°C) for 10 seconds, the compressor will stop and restart till T5<194°F (T5<90°C).
8.5.3 Low voltage protection
VOLLIMT1
VOLTAGE
No limit
VOLLIMT2
VOLLIMT3
Off
VOLFRE2
VOLFRE1
VOLREL1
VOLREL2
VOLREL3
Model
VOLLIMT1 VOLLIMT2
VOLLIMT3
VOLREL1
VOLREL2
VOLREL3 VOLFRE1 VOLFRE2
A-VMH18DC-1
230
200
120
260
210
135
62
54
A-VMH27TC-1
245
220
120
265
240
135
78
45
A-VMH36QC-1
200
185
120
210
195
135
54
42
Note: if the low voltage protection occurs and does not resume within 3min, it will keep the protection after
the machine is restarted.
Содержание A-VMH18DC-1 Service
Страница 6: ...6 Service Manual VMH Series Heat Controller Inc 4 Wiring Diagram 4 1 A VMH18DC 1 4 2 A VMH27TC 1 ...
Страница 7: ...7 Heat Controller Inc VMH Series Service Manual 4 3 A VMH36QC 1 ...
Страница 47: ...47 Heat Controller Inc VMH Series Service Manual Appendix 4 ...
Страница 50: ...04 2009 10 2012 ...