Installation & Operation Manual -
VFH-B 30/36/42 Series
Preface
(1) To
guarantee personal safety when operating this system, please strictly follow the
instructions listed in the manual.
(4) The total capacity of the indoor units which run at the same time can not exceed that of the
outdoor units; otherwise, the cooling (heating)
capacity
of each indoor unit
will be reduced
.
Model
A-VFH30QB-1
A-VFH36QB-1
A-VFH42PB-1
Minimum number of
connectable indoor units
2
2
2
Maximum number of
connectable indoor units
4
4
5
Minimum capacity of
connectable indoor units
18KBtu
18KBtu
18KBtu
Maximum capacity of
connectable indoor units
42KBtu
48KBtu
56KBtu
(5) Switch the main power on 8 hours before starting the unit, helpful for a successful startup.
(6) It is a normal phenomenon that the indoor unit fan will still run for 20~70 seconds after the
indoor unit receives the “stop” signal so as to make full use of after
-heat for the next operation.
(7) When the running modes of the indoor and outdoor units conflict, it will be indicated on the
display of the wired controller in five seconds and then the indoor unit will stop. In this case, they can
return
to normal condition by harmonizing their running modes: the cooling mode is compatible with the
dehumidifying mode and the fan mode can go with any other mode. If the supply power fails when
the
unit is running, then the indoor unit will send the “start” signal to the outdoor unit three minutes
after power recovery.
(8)
Cautions for the
repair
and Maintenance Personnel:
During
repair
and maintenance, prior to the startup of the compress
or
make sure the
crankcase
heater has been energized for at least eight hours! Once the compressor is started, it should be be
observed for at least 30 minutes
to confirm satisfactory operation.
Preface
