HAIER CHILLER
2
3
When the there is no or litter water flow in the pipe, the switch will cuts off control circuit to close the
unit, protect the unit and compressor.
e. Overload protection of compressor
There is a crankcase-heater and a thermal overload relay equipped on the compressor.
Crankcase-heater can preheat the lubrication oil to make sure that the compressor is adequately lubricated.
Thermal overload relay can prevent damage of compressor.
12.5 Parameter-setting display and parameter-setting
12.5.1 Parameter display
When the appliance is operating or in standby mode, press “query” key to check the system temp.:
No.
Parameter code
Code number
1
P01
general return water temperature of the system
2
P02
Liquid pipe of 1# system
3
P03
Liquid pipe of 2# system
4
P04
Liquid pipe of 3# system
5 P05
Outdoor
temperature
6
P06
1# coil pipe temperature
7
P07
2# coil pipe temperature
8
P08
3# coil pipe temperature
12.5.2 Parameter-setting method
When the appliance is off, pressing [query] key for 5 seconds until the wired controller gives a beep
then let it go to enter code-setting operation.
12.5.3 System function parameter selection
Parameter name
Unit
number
Original
setup
ON OFF
Defrost option
SA04
OFF
Defrosting
during
compressor operation
Defrosting at intervals of
compressor operation
Mode option
SA07
OFF
Operating mode can be
changed when the
appliance is in stand-by
mode or in operating
mode
Operating mode can not
be changed when the
appliance is in operating
mode
Power-failure
compensation
SA08 OFF
Controller remains the
original mode set after the
power supply is restored.
Controller remains off after
the power supply is
restored.
Combination and
cycling timer
setting option
SA09
ON
Cycling timer setting
(cycling every 24 hours)
Combination timer setting
(timer-setting is valid for
24 hours)
Interlink function
SA10
OFF
Terminal
interlink
is
allowed
Terminal interlink is not
allowed
12.5.4 Temperature sensor compensation parameter