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Kaysun KEM-12 DTN Manual

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7.2.3 Functions of combination key
1. Force cooling
Press “ ” and “ ” simultaneously for 3s in the main
interface to enter into force cooling mode. The force cooling mode
icon will be constantly light.
Press “ ” button and “ ” button simultaneously for 3s to
quit force cooling mode. The unit will enter power off mode
automatically when quitting force cooling mode.
2. Parameter query function
①To enter parameter query function.
Press “ ” and “ ” simultaneously for 3s to enter the
interface of parameter query function. At this moment, first 2 digits
of the nixie tube will display sequence number and the
last 2 digits is specific parameters.
Press “ ” or “ ” to query the relative parameters.
See query orders in Table 11-1.
②Quit parameter query function If there’s no operation in 20s
when enter the parameter query, it will quit automatically and
return to the main interface.
Press “ ” and “ ” simultaneously to quit parameter query
manually.
3. Auto-lock(unlock) function
If don’t operate the controller in 60s, the keyboard will lock
automatically. Press “ ”and “ ” simultaneously for 3s
to unlock.
4. Factory Reset:
In main interface, long press “ENTER” for 3s, the unit will close and
recovers to factory default mode.
Display panel will display “OFF”.
7.2.4 Shutting down for long periods
If it is previewed not to use the machine for long periods After
deactivating the chiller:
-Make sure the model is in the Power off model " ", or
alternatively disconnect the unit from the power supply.
-Make sure the remote control switch is closed (if present) .
-Close the water valves.
Table.11-1 Query orders
No.
Content
Remark
1
Frequency
Display operating frequency when the unit is in cooling mode and heating mode.
2
Mode
0-Power off，1-water pump，2-cooling，3-heating，4-force cooling，5-force heating
3
Wind speed level
0-Power off (1-7)
4
Total capacity requirements
Capacity before revised (Force cooling displays 5)
5
Capacity requirements after revised
Capacity after revised (Force cooling displays 5)
6
Temp. set
Cooling/heating temp. set
7
T3
Condenser temperature sensor
8
T4
Outdoor ambient temperature sensor
9
Tp
Comp. Discharge temperature sensor
10
Tin
Inlet water temperature sensor of plate heat exchanger
11
Tout
Outlet water temperature sensor of plate heat exchanger
12
Tb1
Plate heat exchanger anti-freezing temperature sensor 1
13
Tb2
Plate heat exchanger anti-freezing temperature sensor 2
14
T6
Radiator surface temperature(reserved)
15
Unit operation current
Unit operation current
16
Power supply voltage AD value
Power supply voltage AD value
17
Opening of EXV
Step number *8
18
Model
(Operation panel has no such function)
19
Version number
(Operation panel has no such function)
20
Err1
21
Err2
(PCB has no such function)
22
Err3
(PCB has no such function)
… 32 …


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