Carrier XCT7 Installations- Und Benutzerhandbuch Seite 28

(6) Jumper explanation
a) EEV operation manually(CN27, CN29)
CN27: short circuit CN27 2 seconds continuously, EEV is opened fully.
CN29: short circuit CN29 2 seconds continuously, EEV is closed fully.
b) time-short and self-check (CN28)
Short circuit CN28 2 seconds after power ON, process into time-short
Short circuit CN28 before power ON, process into self-check.
Code setting of wired controller
Function switches
Code Switch
status
ON
SW1
OFF
ON Common wired controller
SW2
OFF New fan-only has refrigerating,
heating, and air supplying modes
ON Display ambient temperature
SW3
OFF Do not display ambient temperature
ON
SW4
OFF
ON Collect ambient temperature of
SW5
OFF Collect ambient temperature of PCB
ON Power failure memory disabled
SW6
OFF Power failure memory enabled
ON Temperature sensor 4k7 enabled
SW7
OFF Temperature sensor 4k7 disabled
ON Temperature sensor 5k1 enabled
SW8
OFF Temperature sensor 5k1 disabled
Note: ON indicates short circuit; OFF indicates disconnection.
Function description
Sub wired controller
main wired controller
26 lock disabled
26 lock enabled
wired controller
The difference between main and
sub wired controller
Default Remarks
setting
OFF
ON
OFF
ON
ON
OFF
Between SW7
ON and SW8,one
and only one
OFF
must be ON
for any given
period
20
Topic main sub controller
controller
Function all function ON/OFF, Mode,
Fan speed,
Temp, Swing
function only.