Hitachi RAK-15QEF, Service Manual

Page: 37 / 82

70% 40%
Fig.1 Frost Period time Fig.2 Frost Period outdoor Fan Fig.3 The range of indoor/outdoor temperature Fig.4 The range of indoor/outdoor temperature
outdoor Fan [min]
indoor humidity [%]
Fig.5 Frost Period Compressor speed (area A) Fig.6 Frost Period Compressor speed (area B)
Frost Period [min]
C
om
pre
ss
or s
pe
ed
[/min]
C
om
pre
ss
or s
pe
ed
[/min]
Compressor speed [/min] indoor humidity [%]
frz_cmp_otmp_l
outdoor temperature [
℃
] outdoor temperature [
℃
]
outdoor temperature [
℃
]
frz_cmp_otmp_mfrz_cmp_otmp_h
clnfrz_cmpck12 clnfrz_cmpck11
frz_cmp_otmp_l frz_cmp_otmp_mfrz_cmp_otmp_h
1
℃
43
℃
(1)The total hours of air conditioning operation is more than 42 hours(SLEEP
、
ON TIMER operation will take 84 hours
）
,And air conditioner is operated for more than 30 minutes,
(2)Within 2 hours before the ON TIMER designated time,Frost wash(auto) cannot be operate;
(3)ONCE TIMER (ON/OFF TIMER) operation cannot be set ,when Frost wash(auto) is running;
(6)In frost period ,The maximum time is 10 minutes after the heat exchanger temperature ≤ -10
℃
(8)Fan period 1
～
Fan period 2 will not running,when last operation was HEATING;
(9)When device operat Frost wash during ON condition,the device will stop and have blance time(3 minutes)
※
1 According to room humidity, the Frost period time becomes as it is shown in Fig.1.
※
2 According to Compressor rotation speed, the Outdoor fan becomes as it is shown in Fig.2.
The Compressor rotation speed becomes as it is shown in Fig.6.about area B
Meanwhile, the outdoor temperature and indoor humidity are suitable for the Frost Wash(Area A
、
B in Fig.3
、
4),Frost Wash (auto) start;
(4)When the Frost Wash is stopped during Frost Wash operation, the unit automatically restart Frost Wash at the next operation stop.
(5)Before the Frost period start,the outdoor temperature ≥ 16
℃，
Or before the defrosting period finish,the heat exchanger temperature ≥ 0
℃，
The Heating period will not running. Fan period 1
～
Fan period 2 all turn to Fan operation
(10)Before the Frost period start,OH temperature ≥ 60
℃
,Original blance period time will add 3 minutes
※
3 The Compressor rotation speed becomes as it is shown in Fig.5.about area A,
(7)Heating period will finish after the heat exchanger temperature ≥ 35
℃
,remanent time turn to Fan period 2,the total time unchanged
Frost wash
31%
40%
60%
70%
Blance period Frost period
Defros ti ng period
Stop period 1
Operation lamp
Indoor fan
Compressor rotation speed
Cooling
、
Heating
、
Dehumdify operation
Frost wash operation
Heating period 1
Fan period 1
Fan period 2 Heating period 2
Deflector angle
(Vertical)
Shut
Stop period 2
Upward a bit
Downward a bit
※ SS
※ 2
※ 3
※ 1
frzcln_blnce_tm
(AUTO)
frzcln_souf1_tm
(manual)
cln ti m_def1 cln ti m_suf1_frz1 cln ti m_wam1_frz1 cln
ti m_stp1_frz1 cln ti m_wam2_frz1 cln
ti m_stp2_frz1 cln
ti m_suf2_frz1
clncmp_frz
clncmp_frz
gfwfrz_wam_p gfwfrz_wam_p
fcln_frz_wam fcln_frz_wam fcln_frz_suf fcln_frz_suf
frz_cmp_base_l
frz_cmp_base_h
area A
area B indoor humidity [%]
indoor temperature [
℃
]
31%
20
℃
10
℃
32
℃
area A
area B
Prohibited area Prohibited area
28
℃
40%
60%
70%
frz_cmp_base_m
frztm1_long
frztm1_short
gfcfrz11_p
gfcfrz12_p
gfcfrz13_p
frz_cmp_base_lb
frz_cmp_base_mb
frz_cmp_base_hb
Stop button
Frost wash lamp
Outdoor fan
37