4/8/2008R series service manual
PAGE 2 OF 20
1. Features
1.1 Universal outdoor unit and indoor unit design
1.2 R410a refrigerant; Cooling & heating units
1.3 The indoor unit combination is as follow list:
OUTDOOR UNIT MODEL
INDOOR UNIT COMBINATION
MSM-18HRN1
9K
×
2
MSM-21HRN1
9K+12K
MSM-27HRN1
9K
×
3
MSM-30HRN1
9K
×
2+12K
1.4
Working Temperature Range
Cooling
Heating
Models
Indoor Low
Indoor Hi
Outdoor Low Outdoor Hi Indoor Low Indoor Hi
Outdoor Low
Outdoor Hi
multi
on/off
17
/
5
43
/
30
-7
24
2.Function
The function will be
operate in any operation
mode.
Indoor unit
Operation ON/OFF by remote controller
Room temperature sensor.
Pipe temperature sensor.
Sensing by room temperature
Maintain the room temperature in accordance with the setting temperature.
Room temperature control
Indoor fan is delayed for 5 sec at the starting.
Starting temperature control
high, med, low, breeze.
Indoor fan speed control
Light up in the VLED for each operation mode.
The unit will decide the louver direction according to operation mode.
Two-direction air vane
The fan is turn to low speed (cooling/heating).
The unit will be turn off at the seventh hour.
Sleep mode auto control
The function is usually used in rainy days in
springtime or damp areas.
Independent dehumidification
Operation indication Lamps (VLED)
Air flow Direction control
Self-diag. function
Defrost mode
Prevent the cold wind at
the beginning of unit start.
Anti-cold function
Auto-restart function
Turbo mode
