Split Type Installation Manual
33
EN
PCB Explanation 9
9 PCB Explanation
9.1
Functions and Control
9.1.1 Main functions and control specification of
indoor unit
“Setting value” (express in parameter) in this
specification means is a parameter that is stored in
EEPROM. Refer to [EEPROM parameter table].
9.1.2 Temperature Adjusting function
The frequency kept when the frequency rises.
When the operation enters into the work mode, in order
to insure the full oil-returning, some frequency should
be kept for some time.
Indication time
Indication
frequency
Cooling & mois-
ture removing
Heating
Frequency kept
60 seconds
60 seconds
58 Hz/88Hz
DASH operation
When the operation starts or the operation mode
changes (except when the compressor is switched on
after being off), the compressor is on and the indicated
maximum frequency should be as follows:
Cooling
deviation to zero
Moisture removing
deviation to level G
Heating
deviation to level F
There will be no DASH operation under trial operation,
emergency operation and silent operation modes.
Temperature adjusting of different levels
(DASH operation conditions under different modes)
Select the wind volume when it is set automatic
When the wind volume is automatic, it can be switched
between strong, medium and weak according to the
temperature adjusting levels. Wind volume under the
automatic wind volume mode.
Temperature adjusting levels
A
B
C
D
E
F
G
H
I
Heating Strong Strong Strong Strong Strong Medium Weak Weak SLO
Cooling
Strong Strong Strong Medium Medium Weak Weak Weak
Moisture
Removing
Strong Medium Medium Medium Weak Weak SLO
SLO
Wind volume limit
When the compressor is working and the max setting for
indoor fan motor is medium or weak, the upper limit of
indicated frequency is as follows:
Frequency control form for wind volume
Limited frequency
variables
Limited
frequency
Medium wind volume
FQLIMMD
80Hz
Weak wind volume
FQLIMLO
52Hz
Limited frequency for
up/down health wind
FUPHEAL
40Hz
9.1.3 Main functions
Warm boot
When the heat running starts or the frost removing ends
and the compressor starts again, in order to avoid cold
wind, warm boot wind volume control should be done.
Heat exchange temperature
• To control the indoor fan motor as shown in the
table above according to the heat exchange temperature.
• The fan motor stops when the heat exchange tem-
perature is below 28 ºC.
• The fan motor is working slightly weak when the
heat exchange temperature is above 28 ºC and below
35 ºC.
• The fan motor is working weak if the he heat
exchange temperature remains 35 ºC for less than 4
minutes.
Содержание V 10-025 NHI
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