5.Funcitions and Control
5.1 Main functions and control specification of indoor unit
This specification use for HSU-18/22HVA103/R2(DB)frequency conversion air condition are
manufactured by Haier air condition parent company. "Setting value" (express in parameter) in
this specification means is a parameter that is stored in EEPROM. Refer to [EEPROM parameter
table].
5.1.1 Temperature Adjusting function
5.1.1.1 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 & moisture
removing
Heating Frequency kept
60 seconds 60 seconds 58 Hz/88Hz
5.1.1.2 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.
5.1.1.3 Temperature adjusting of different levels.
(DASH operation conditions under different modes)
COOL
4.0
2.7
2.0
0.7
3.3
1.3
HEAT DASH
4.7
6.34.74.7
B
4.0
2.7
3.3
1.3
2.0
3 MINUTES PROTECTION
COOL DASH
DRY DASH
T
3.7 2.0
1.3
3.0
0.7
1.3
4.3
5.0
5.7
3.3
2.7
4.0
0
COMP. STARTS AGAIN
E
G
F
H
D
C
0.7
3.3
4.0
2.0
2.7
3.7
3.0
1.3
5.0
4.3
5.7
COOLDRY HEAT
E
BLOCK
A
HEAT
5.3
DRY
<120s
20
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