Hitachi RAS-10JH4 - Basic Cooling Operation

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（ＣＭＡＸ）
（ＣＳＴＤ）
０
ＣＭＩＮＨＩ
3000
ＣＭＩＮ
Outdoor fan
Max.
Ultra-Hi
Ultra-Lo
Silent
Rating
Min.
Compressor speed
Med
Lo
Hi
Operation lamp
Start/Stop button
Temperature set for cooling and
dehumiditying (value set by remote
control [+])
Thermo judgment
Start
Fan speed set to "auto"Fan speed set to "auto"
Room temperature
Cool dashed
Stop
Start
Thermo OFF
Stop
Indoor fan
20min.
Lo
15sec.
Lo
15sec.
Lo
15sec.
1min.
1min.
10min.
10min.
CLMXTP
1.33℃
1.33℃
1℃
TCMAX
0.66℃
(Air conditioner runs at the set fan speed other than when fan speed is set to “Auto”.)
(9)
When fan is set to “ Silent ” , compressor speed will be limited to CSZMAX.
Temperature
Calculated
difference
compressor speed
1.66℃
2500
10JH3 14JH3
min
–1
2.00℃
2.33℃
2.66℃
3000 min
–1
3300 min
–1
3300 min
–1
2500 min
–1
3000 min
–1
3500 min
–1
3800 min
–1
(with shift value)
Table 2 Compressor speed
Item
Temperature
Room
temperature
Outdoor
temperature
30℃
32℃
31℃
33℃
Thermo judgment (ON)
Thermo judgment (OFF)
Thermo judgment (ON)
Thermo judgment (OFF)
Table 1 Thermo judgment
Basic Cooling Operation
Notes:
(1) Condition for entering into Cool Dashed mode. When fan set to “Hi” or “Auto mode” and temperature difference between indoor temperature and set temperature has a
corresponding compressor speed (calculated value in Table 2) larger than CMAX.
(2) Cool Dashed will release when i) a maximum 25 minutes is lapsed and ii) room temperature is lower than set temperature –3℃ (thermo off) and iii) when room temperature
has achieved setting temperature –1℃ then maximum Cool Dashed time will be revised to 20 minutes. And iv) indoor fan is set to Lo and Med fan mode and v) change operation
mode.
(3) During Cool Dashed operation, thermo off temperature is set temperature (with shift value) –3℃
. After thermo off, operation continue in Fuzzy control mode.
(4) Compressor minimum “ON” time and “OFF” time is 3 minutes.
(5) During normal cooling mode, compressor maximum speed CMAX will maintain for 60 minutes if indoor temperature is lower than CLMXTP. No time constrain if indoor temperature
is higher than CLMXTP.
(6)
(7) When fan is set to “Med”, compressor speed will be limited to CJKMAX.
(8) When fan is set to “Lo”, compressor speed will be limited to CBEMAX.
(10) During Cool Dashed, when room temperature reaches set temperature –1℃compressor speed is actual speed x DWNRATEC.
When fan speed setting on remote control is “Hi” or “Auto” mode, and both room and outdoor temperatures (data based on out door unit) meet temperature judgment
(Off) shown in the table 1, the compressor speed will be limited to CKYMAX_TY1.
Reversing valve (cooling “on” mode)
2min. 30sec.
2min. 30sec.