Technibel MCW1B5XAB - Dry Mode Operation; Fan Mode Operation; Auto Fan Speed

4-4 Dry Mode Operation
Dry operation remove moisture from indoor air running, in cooling mode, at a low level without reducing the
ambient temperature. This is done cycling ON and OFF indoor and outdoor units according to below.
ROOM DRY LEVEL JP4 OPEN JP4 CLOSED
TEMP
Operation according to Operation according to
≥ SPT+2°C LEVEL 0 COOLING mode COOLING mode
CM off CM off
< SPT+2°C LEVEL 1 FMO on FMO off
≥ SPT-1°C FMI runs at LOW speed FMI runs at LOW speed
RV off RV off
CM off CM off
< SPT-1°C LEVEL 2 FMO switches 3 minutes FMO off
≥ 15°C
on and 9 minutes off
FMI switches LL and L FMI switches LL and L
during FMO operation
(3 MIN. on and 9 OFF)
RV off RV off
CM off CM off
< 15°C DRY OFF ZONE FMO off FMO off
FMI off FMI off
RV off RV off
SPT = Set Point Temperature
4-5 Fan Mode Operation
With this mode, the indoor fan is turned on while cooling and heating valve stay off all the time. The user can
select between 3 speeds: HIGH, MEDIUM and LOW.
4-6 Auto Fan speed
With this option selected, the indoor fan speed changes automatically according to the difference between
the detected air temperature (RAT sensor) and the set point (SPT):
COOLING MODE
2 ≤ (RAT – SPT):
HIGH speed
1 ≤ (RAT – SPT) < 2: MEDIUM speed
(RAT – SPT) < 1: LOW speed
HEATING MODE
2 ≤ (SPT - RAT):
HIGH speed
(SPT - RAT) < 2: MEDIUM speed
NOTE
SPT = Set Point Temperature
21