11-6
CONTROL SYSTEM
SM BS DCI 1- A.1 GB
Model
J2 Shorted
J2 Opened
Wall mounted
Compensation Disabled
Compensation Enabled
Cassette Compensation
Enabled
Compensation
Disabled
Ducted
Compensation Enabled
Compensation Disabled
Floor/Ceiling Compensation
Disabled Compensation
Enabled
11.16 Indoor Fan Control in Heat Mode
Indoor fan speed depends on the indoor coil temperature:
11.17 Auto Cool/Heat Mode
When in auto cool heat mode unit will automatically select between cool and heat
mode according to the difference between actual room temperature and user set
point temperature (T).
Unit will switch from cool to heat when compressor is off for 3 minutes, and T <
-3.
Unit will switch from heat to cool when compressor is off for 5 minutes, and T < -3.
11.18 Dry Mode
As long as room temperature is higher then the set point, indoor fan will work in low
speed and compressor will work between 0 and
MaxNLOADIF1C
Hz.
When the room temperature is lower than the set point, compressor will be
switched OFF and indoor fan will cycle 3 minutes OFF, 1 minute ON.
11.19 Protections
There are 5 protection codes.
Normal (Norm) – unit operate normally
.
Stop Rise (SR) – compressor frequency can not be raised but does not have to be
decreased.
HzDown1 (D1) – Compressor frequency is reduced by 2 to 5 Hz per minute.
HzDown2 (D2) – Compressor frequency is reduced by 5 to 10 Hz per minute.
Stop Compressor (SC) – Compressor is stopped.
ICTVL ICTH
ICTL
ICTST
ICTT
CONTENTS
