MULTI VRF-Ⅱ INDOOR UNIT SERVICE MANUAL EUROPEAN/LATIN AMETICA (R410A)
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Engineering parameters can be queried in power-on or power-off status.
(1) Press and hold the “MODE” and "SWING" button simultaneously for five seconds to enter the
engineering parameter query interface. The temperature area displays “C00” and “VIEW” is on.
(2) In "C00" status, continuously press the “MODE” button for three times to enter engineering
parameter query.
(3) Select a parameter code by pressing “ ” or “ ”.
(4) Press the “SWING” button to return to the upper-level menu till quitting parameter query.
(5) For the engineering parameter query list of the XK49 wired controller, refer to the engineering
parameter query list in XK46 engineering parameter query.
(6) Note: In parameter query, the function of "SWING" on the XK49 wired controller is equivalent to the
function of “ENTER/CANCEL” on the XK46 wired controller.
5.2.5 Engineering Parameter Settings
Engineering parameters can be set in power-on or power-off status.
(1) Press and hold the “MODE” and "SWING" button simultaneously for five seconds. The temperature
area displays “C00”. Continuously press the “MODE” button for three times, and then press and
hold the “MODE” button and "SWING" simultaneously for another five seconds to enter the wired
controller engineering parameter setting interface. The temperature area displays “P00”.
(2) Select a parameter code by pressing “ ” or “ ”. Press the “MODE” button to switch to parameter
value settings. The parameter value blinks. Adjust the parameter value by pressing “ ” or “ ” and
then press the “SWING” button to complete settings.
(3) Press the “SWING” button to return to the upper-level menu till quitting parameter settings.
For the engineering parameter setting list of the XK49 wired controller, refer to the engineering setting
query list in XK46 engineering parameter settings.
Note: In parameter settings, the function of "SWING" on the XK49 wired controller is equivalent to the
function of “ENTER/CANCEL” on the XK46 wired controller.
5.3 Engineering Application Functions Operated through the YV1L1 Remote Controller
The YV1L1 remote controller provides all engineering application functions. It is set to common type by
default upon factory departure. It can use engineering application functions only after being set to
professional type. The following only describes engineering application functions. For other user
operation functions, refer to the "Remote Controller Operating Instructions".
Method for setting the professional remote controller: Press "
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