Z series combination household (townhouse)central air conditioning unit
4
4. Operation Instruction to Control
4.1 Display function on display panel
17
16
15
13
12
11
2 1
4
6
7
8
9 10
5
3
14
OFF
ON
EXIT
MODE
CHECK
PARAMETER SET PASSWORD
DEFROST ABC TEST
4.2 LCD displaying panel
1)
HEAT:
It displays when unit is heating, otherwise it would not display
2)
ERROR CODE:
It shows the error code displayed on
Main Display Area
. It displays when there is
error at system or communication.
3)
COOL:
It displays when cooling is running, otherwise it would not display.
4)
TEMP:
It shows temperature value displays at
main display area
.
5)
Auxiliary display area:
It contains 2 numbers and a comma, for showing temperature and number of
parameter at main display area. It only displays when under
Check mode
and
Parameter checking mode
.
6)
Main display area:
It contains a minus, 2 numbers and 1 temperature unit, for displaying value of
temperature and parameter (temperature or time value) and error code. When temperature value is displayed,
it shows value in algorism and temperature unit; when time is displayed, it shows algorism value but no
temperature unit (default unit is min); when it is code, it displays specific error (refer to
Malfunction Error
List
) but no temperature unit. Individual temperature or parameter may exceed 99, then adopt AX for 100
～
109, bX for 110
～
119, CX for 120
～
129, dX for 130
～
139, EX for 140
～
149, FX for 150
～
159, and X
stands for a number between 0
～
9. Under normal state, it shows temperature for back water.
7)
Parameter list:
It means the value shown at present main display area is parameter. It shows onlyunder
Parameter Check mode.
8)
DEFROST:
It displays when defrosting, otherwise it doesn’t displays.
9)
ABC:
It displays when system or compressor orders, for showing which system is defrosting.
10)
TEST:
For testing, it displays under compel operation. 11
～
17. Buttons: Functions and contents are
shown in instructions for buttons function below.
When unit is off, it displays only temperature of out water. When unit is on, under normal state, if there is
no error, it displays temperature of out water, if there is error, it displays error code; when there is no operation
after 60s of pressing the button, it quit back to normal state display automatically.
Auto antifreeze operation display (only for heat pump unit)
When auto antifreeze function is started and relevant conditions are satisfied, unit begins auto antifreeze
operation. At this time, LCD main displaying area displays code d2 (if there is error it displays error code).
