HAIER CHILLER
48
a. When the control equipment have been electrified over 5 minutes and the cooling water outlet
temperature is more than (setting value+2
℃
)
【
the setting value is usually 7
℃】
, the chiller will enter
startup.
Note: The unit is started up by Y-
△
type, and the conversion time is 5 second. Please note
the turning direction of the compressor when first start up.
b. The unit will stop upload when the cooling water outlet temperature is between (setting value+2
℃
) and (setting value-2
℃)
.
Download procedure
a. The unit will start download when the cooling water outlet temperature is less than (setting
value-2
℃
) and will keep on download when the outlet temperature is still less than (setting value-2
℃
)
3 minutes later.
b. Unit will download quickly when there is failure occurred in piping system or unit stopped, the
compressor will running in 50% capacity for 1 minute and then stop.
c. The compressor will stop when failure occurs itself and will work again when failure has been
eliminated.
11.2.3.2 Heating type
Press the
【
Start
】
button on the “start/stop chiller” display of touch screen, the cycling pump
starts firstly, 2 minutes later fan motor starts and 1 minute later compressor startup.
Stop directly: Press the
【
Stop
】
button on touch screen,
【
Stop
】
will change to white, confirm and
then stop is available. The master unit stops firstly, 3 minutes later cycling pump stops.
Upload procedure
a. The unit will startup when the control equipment have been electrified over 5 minutes and the
warm water outlet temperature is less than (setting value-2
℃
)
【
the setting value is usually 45
℃】
.
Note: The unit is started up by Y-
△
type, the conversion time is 5 second. The compressor
will running in 25% capacity for 30 seconds and then turn to 50% capacity when startup. Please
note the turning direction of the compressor when first start up.
b. The unit will stop upload when the warm water outlet temperature is between (setting value-2
℃
)
and (setting value+2
℃)
.
Download procedure
a. The unit will start download when the warm water outlet temperature is more than (setting
value+3
℃
) and will keep on download when the outlet temperature is still more than (setting value+3
℃
) 3 minutes later.
b. Unit will download quickly when there is failure occurred in piping system or unit stopped, the
compressor will running in 50% capacity for 1 minute and then stop.
c. The compressor will stop when failure occurs itself and will work again when failure has been
eliminated.
11.2.4 Troubleshooting procedure
PCB classified manage kinds of failure.