15
When power is failure
When power is failure in running, all the operations will stop.
After being electrified again, if with re-satrt up function, the unit can resume to the state before
power off automatically; if without re-satrt up function, the unit needs to be switched on again.
When abnormal occurs in running because of the thunder, the lightning, the interference of car
or radio, etc, please cut off the power source, after eliminating the failure, press "ON/OFF" button
to start up the unit.
Heating capacity
The heating mode adopts the heat pump type that absorbs outdoor heat energy and releases
into indoor. So if outdoor temperature goes down, the heating capacity will decrease.
indoor model:
Room No.
e.g. Indoor A, system 1, Floor 2 2F-1A
System marks
On the condition that multi systems are installed, in order to confirm the relationship
between outdoor and indoor, please make marks on outdoor electric control box cover to indicate
the connected indoor unit. As the below figure:
Trial operation
Trial operation
In trial operation, refer to the information of performance section. When the unit can not start
up at the room temperature, make trial operation for outdoor.
Confirm the compressor bottom getting hot.
Except for the condition that there is only one master unit connected (no slave unit), under the
other conditions, open fully the outdoor operating valves (gas side, liquid side). If operating the
unit without opening the valves, compressor failure will occur.
Confirm all indoor units being electrified. If not, water leakage will occur.
Measure the system pressure with pressure gauge, at the same time, operate the unit.
Before trial operation:
Before being electrified, measure the resistor between power terminal block (live wire and neutral
wire) and the earthed point with a multimeter, and check if it is over 1M . If not, the unit can
not operate.
To protect compressor, electrify the outdoor unit for at least 12 hours before the unit runs.If the
crankcase heater is not electrified for 6 hours, the compressor will not work.
Trial operation and the performance
