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AER.MIU.HWN2EC.01.03/14
Hold down
CANCEL
and
FAN
buttons for 3 seconds to enter into operation parameters browsing mode. Unit’s display area
shows the address of the slave unit being viewed. Slave unit selection method is the same as in networking control above.
Press
or
to browse various parameters as follow:
Wall pad display temperature area
Wall pad display time area
C0
Return air temperature displayed
C1
Indoor coil temperature displayed
C2
DIP switch setting displayed
C3
Indoor coil 2 temperature
Press
CANCEL
button to exit.
o)
Error indication
When faulty slave unit is detected, the master unit’s display area shows the faulty unit address, the time area
shows the error code and the wall pad backlight changes to the color red. Should there be multiple units having
problems, addresses and error codes will be shown one after another.
Error code definition:
Error
Error code
Electrical heater faulty
E1
Indoor coil sensor 2 faulty
E2
Return air sensor faulty
E3
Indoor coil sensor 1 faulty
E4
Indoor coil low temperature protection
E5
Indoor coil over heat protection
E6
Float switch alarm
E7
Local communication error
E8
For units without master-slave settings, the wall pad will indicate unit error codes as above.
4) Wired wall pad LCD will display the following;
5) After selecting the RPM setting, turn the DIP switch 1 to the “OFF” position. The wired wall pad display will resume its normal
appearance.
A.
This is the motor RPM sett
Check for presence of voltage
B.
Check fuse on board PM step.
This is the speed level setting.
d0 means low speed
d1 means medium
Press PAR / - button to select.
