Hitachi RAS-5182CH Service Seite 53

Heating
§ deg down
rature
Set circulation
velocity:
shed.on during OFF timer operation, the OFF timer will be cancelled.
Automatic
* Sleep operation is
executed for each opera-
tion mode.
St
5 deg down
Set circulation
velocity:
£60 minutes _} LO (sleep operation)
switch
shed.on during ON after a timer reservation, sleep operation will be started.
° Sleep operation is ex-
ecuted for each operation.
19" circulation
30sec 30 sec 15sec 30sec 30sec
/stop switch
nostat signal
signal is not given as input, heating operation is started when 3 minutes
cuted at the time of operation start and after completion of defrosting,
2 is no operation, independent of the preheating signal.
30 sec 30 sec
30 sec 60 sec 30.sec 60sec 3 minutes
when the defrosting signal is given as input.
started immediately with input of the defrosting signal.
operation stop.
© The defrostina sianal is no accented at the time of overload innut:
¢ For the time TE after start of heating operation, defrosting will not be executed even
* 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
« Once defrosting has been completed, the defrosting signal is not accepted for the ti
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
¢ Atthe time of heating
operation mode, the same
operation as for heating is
executed.
* Defrosting of each opera-
tion mode is executed.
External fan rela
Table 1 Specifications
Item
Operation
switching
Automatic
Heating
Fan [Yes _|
Sensor
dehumidification
Cooling [Yes |
Yes (automatic) |":
Service switch | Heating
Cooling
Nice temperature reservation
Automatic temperature reservation
Defrosting
Pd cut 3
Heating load reduction | Yess
Reversing valve rela
Reversing vaive lock protection
Sleep circuit
Heater operation at the time of
sensor dehumidification
Automatic blowing direction
Filter sign
Wireless mode
Cooling wireless |
Yes
Yes
Yes
Yes
- Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Table 2 Sensor operation values
ON tempera-
Thermostat | ture (Thermo-
operation | stat relay)
powerrelay Icing
(°C) 27.6
35.6
Differential (°C) 0.33
Low-temperature (T1) ON (° 1.0
defrosting Reset (°C) 12.0
Reset (°C) 17.0
a
Pd cut 1 T3 ON (°
°
15.0
9)
48.0
©
=
OD
a
Reset ..(°
ON (°C
(TY) Reset (°C)
~—
49.0.
63.0
|
Other detailed specifications
4.
When tle room temperature rises
within 3 minutes after thermostat
OFF duing cooling operation with
automate veigcity, the blowing veloc-
ity chanjes in the order of S>L-H
in the sane way as at the time of ther-
: mostat ON.
in caseof Tele. control input during
"stoppedON timer, operation will be
started ¢ that time and the timer will
be. cleard.
In case >f Tele. control input during -
operatinn of the OFF timer, the
operation will be stopped at that time
and the imer will be cleared.
Even..vhen operation stop is
execute( at the time of outside fan
OFF byoverload, automatic fresh
defrostirg will not be executed.
In caseof switching to "Heating"
during "Aitomatic" heating operation,
the opention will be continued as it
is when 'he thermostat is ON. 3 min
delay wil not be entered. However,
the set'oom temperature and the
blowingvelocity will be according to
the rem¢e control signal. The same
applies br switching from "Heating"
to "Autonatic" heating.
In caseof switching from "Sensor
dehumilification" operation to
"Cooling, as it is when the thermo-
stat is CN. 3 min delay will not be
entered However, the set room
temperaure and the blowing veloc-
ity will te according to the remote
control sgnal.
The sane applies for switching from
"Cooling to "Sensor dehumidifica-
tion". Tie same also applies for
"Automaic" sensor dehumidification,
cooling Sensor dehumidification',
"Cooling.
The filte.sign lights after operation
of the inioor fan for 100 hours. The
time is ceared by the filter switch.
10.
11.
12
After entry into trouble mode (when
the indication lamp is flashing), the
rapid feed mode cannot be changed.
When operation by nice temp-
erature reservation is executed
during sleep operation, normal
operation will be continued, and the
advance time becomes the temp-
erature difference between the set
temperature. without sleep shift and
the room.temperature.
The 60 minutes of defrosting prohi-
bition are counted from Thermostat
ON after start/stop switch ON. When
the thermostat is OFF at the time of
start/stop switch ON, the 60 minutes
will be counted from the time of
thermostat ON. The initial OFF time
is not counted. Counting starts when
the thermostat becomes ON, and the
count then continues even if the
thermostat becomes OFF.
In case of switching from "Heating"
the reversing valve is held for 3 min-
utes.
The defrosting signal is not accepted
with overload input, and the opera-
tion becomes as shown below when
the overioad input disappears.
(1) When previously the defrosting
signal existed without over
load input defrosting will start .
immediately.
(2) In cases other than the
above, defrosting will be
executed with a defrosting
signal in the condition without
overload input.
~ RR_