Hitachi RAS-5182CH Service Seite 52

Operation mode
Control function
¢ The set termperature
after sleep shift in
sensor deh umidificaton
operation is limited
by 16°
Preheating
operation
Defrosting
(including automatic
fresh defrosting)
Fan
¢ The operation is
switched OFF at
the set time.
Cooling Sensor dehumidification
Set circulation velocity LO (sleep operation)
Set
temperature
i 60 minutes _:
Start /stop switch : :
Sleep key : | :
Operation lamp i
Timer lamp <
Notes:
* 60 minutes after the sleep key is switched on, sleep operation
is started.
¢ When the sleep key is switched on during OFF timer operation,
the OFF timer will be cancelled.
Indoor heat exchanger
7 thermistor temperature
Th
ae
Fan relay H
2 Power rela aera
| TIALS & Stick relay
= Outside fan rela ana
3 External eek eo a
6 ES RTE TRSE
© Operation lamp :
im
£
3 FanrelayS one
3
E Power rela =a
ry EERE & Stick rela
5 Outside fan rela js
2 Extemal aaa
AE ® Operation lamp
Heating
5 deg down
:. 60 minutes
Set temperature
Set circulation
velocity-
Sleep ke. i
¢ When the sleep key is switched on during OFF timer operation, the OFF timer will be cancelled.
7
§ deg down
Set temperature
Set circulation
velocity:
i 60 minutes: LO (sleep operation)
Start /stop switch
* When the sleep key is switched on during ON after a timer reservation, sleep operation will be started.
"Strong" circulation
30 sec 30 sec
15sec 30 sec 30sec
Start /stop switch
Thermostat signal
Notes:
¢ Even when the preheating signal is not given as input, heating operation is started when 3 minutes
have passed for T.
* Preheating operation is executed at the time of operation start and after completion of defrosting,
and at all other times, there is no operation, independent of the preheating signal.
Defrosting
Te start Completion
15 minutes-TE
30 sec 30 sec 30 sec 30 sec
Start /stop switch
Defrosting signal
|_{|| ee ee
Preheating signal MM | ||
Fan relay H fp aaa
Fan relay L | im 15 seo LT eee |
Fan relay S i ee | i Rn
.Powerrelay 2 sec . eS tf _
Stick rela =a = ex,
External fan rela'
Reversing valve relay
Heater relay 10 sec rg
Operation lamp ee ii |
Hotkeep lamp i || | neem a
i ae Lk itd
30 sec 60 sec 30sec60sec 3minutes
TA in. ¢ For the time TE after start of heating operation, defrosting will not be executed even
when the defrosting signal is given as input.
¢ When the reserve cycle defrosting TA has continued for the time shown in the table on
the left, the operation advances to TB and TC independent of the defrosting signal.
* When the power relay becomes ON after expiration of the time TE defrosting will be
started immediately with input of the defrosting signal.
* Once defrosting has been completed, the defrosting signal is not accepted for the time
TE.
« When a defrosting signal has been given as input at the time of stop by means of the
start/stop switch or at the time of OFF timer count-up, defrosting is executed before
operation stop.
¢ The defrosting signal is no accepted at the time of overload input.
(Reverse cycle defrosting)
TB
(Silencing period)
Tc
(Cycle balancing time)
TE f s
(Defrosting prohibition time) min.
Automatic
* Sleep operation is
executed for each opera-
tion mode.
¢ Sleep operation is ex-
ecuted for each operation.
¢ Atthe time of heating
operation mode, the same
operation as for heating is
executed.
¢ Defrosting of each opera-
tion mode is executed.