Airwell KXV Series, Инструкция по эксплуатации

Страница: 272 / 380

Engineering manual
272
2.4.4 HRV/Fresh Air Setting
(1) HRV or Fresh air is an additional equipment of VRF’s system, the function (VENTILATION) will invalid if no
HRV or Fresh air is installed.
 HRV is controlled like an indoor unit which has its physical address and user address.
 After installing fresh air equipment, set DIP switch DS7 to ON position in indoor PCB, then
fresh air function is valid.
(2) HRV/Fresh air is chose by a dip switch P4 (Fresh air) which hidden in the back of LWC, when dip switch P4
(Fresh air) is in OFF position, VENTILATION button is used to control Fresh air; when dip switch P4 (Fresh air)
is in ON position, VENTILATION button is used to control HRV. Default setting is OFF.
(3) Considering about following rules before change the setting:

If no any unit of a group has this function, VENTILATION setting is invalid.

If some indoor unit has fresh air function, but LWC select HRV, LWC will indicate the
fault by blinking LED but can work as normal.

If some indoor unit has HRV function, but LWC select Fresh air, LWC will indicate the
fault by blinking LED but can work as normal.

Only when all units of the same group have fresh air function, VENTILATION setting is
valid.
2.4.5 Weekday Setting
(1) For some countries, weekday is from Sun to Thu, LWC offer a selection by dip switch P5 (Weekday) which
hidden in the back of LWC.
(2) When DIP switch P5 (Weekday) is in OFF position, weekday is from Mon to Fri; when DIP switch P5
(Weekday) is in ON position, weekday is from Sun to Thu; Default setting is OFF.
(3) It is mainly used for PROGRAM setting.
2.4.6 Easy check function
With this function, technician needn’t remove the back cover to check current running state of the system; it has
part functions of TM as following:
(1) Browse current message for indoor unit and outdoor unit.
(2) Malfunction diagnostic for indoor unit, outdoor unit and LWC itself

How to enter/exit easy check function
 Long press “CLEAR” button more than 5s to enter to easy check function. LCD display: Holiday icon is
shown for indicate entering this special function. Only groups number including ALL and LWC sensor
temperature are shown when enter Easy check function.