Hitachi RAS-5101CH Servicehandbuch Seite 54

Heating
Automatic
5 deg down
ulation cy
i 60 minutes, LO (sleep operation) i
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on during OFF timer operation, the OFF timer will be canceled.
5 deg down
diation at
160 minutes, f LO (sleep operation) ,
a
©
during ON after a timer reservation, sleep operation will be started.
+ Sleep operation is executed
for each operation mode.
sas
« Sleep operation is executed
for each operation mode.
A
15sec 30 sec 30 sec
30 sec 30 sec
not given as input, heating operation is started when
the time of operation start and after completion
there is no operation, independent of the preheating signal.
« At the time of heating
operation mode, the same
operation as for heating
is executed.
Jefrosting
start Completion
15 minutes-TE
30 sec 30 sec
30sec 60 sec 30 sec 60 sec 3 minutes
- 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 not accepted at the time of overload input.
- Defrosting of each operation
mode is executed.
Table 1 Specifications
Item
Operation switching | Automatic Yes
Heating Yes
Sensor
dehumidification
Cooling
Temporary switch —- = Yes (automatic)
Service switch Yes
Yes
Yes
Automatic fresh defrosting
| Detrasting
Pd cut 1 Yes
Pd cut 2 Yes
Pd cut 3 Yes
Heating load reduction Yes
[ External fan relay Yes
Reversing vaive relay Yes
Reversing valve lock protection Yes
Sleep circuit Yes
Heater operation at the time of sensor No
dehumidification
Automatic blowing direction Yes
Filter sign Yes
Wireless mode Cooling wireless
Table 2 Sensor operation values
Cooling, Sensor
dehumidification ON temperature
(Thermostat relay)
power relay
('C)
Thermostat
operation
Low-temperature (T1)
defrosting Reset (°C)
Preheating (T2) Reset (°C)
ON (°C)
(T3) ON (°C)
Pd cut 3 (T8) ON (°C)
{T9) Reset (°C) 55.0
Pd cut 1
Other detailed specifications
1: When the room temperature rises
within 3 minutes after thermostat
OFF during cooling operation with
automatic velocity, the blowing
velocity changes in the order of S
—- L — H in the same way as at
the time of thermostat ON.
in case of Tele. control input during
stopped ON timer, operation will be
started at that time and the timer
will be cleared.
In case of Tele. control input during
operation of the OFF timer, the
operation will be stopped at that time
and the timer will be cleared.
Even when operation stop is
executed at the time of outside fan
OFF by overload, automatic fresh
defrosting will not be executed.
In case of switching to "Heating"
during "Automatic" heating
operation, the operation will be
continued as it is when the
thermostat is ON. 3 min delay will
not be entered. However, the set
room temperature and the blowing
velocity will be according to the
remote control signal. The same
applies for switching from "Heating"
to "Automatic" heating.
In case of switching from "Sensor
dehumidification" operation to
"Cooling", as it is when the
thermostat is ON. 3 min delay will
not be entered. However, the set
room temperature and the blowing
velocity will be according to the
remote control signal.
The same applies for switching from
"Cooling" to "Sensor dehumidifica-
tion'. The same also applies for
"Automatic" sensor dehumidification,
cooling "Sensor dehumidification",
"Cooling".
The filter sign lights after operation
of the indoor fan for 100 hours. The
time is cleared by the filter switch.
10.
11.
12.
~A7 -
After entry into trouble mode (when
the indication lamp is flashing), the
rapid feed mode can not be
changed.
When operation by nice temperature
reservation is executed during sleep
operation, normal operation will be
continued, and the advance time
becomes the temperature difference
between the set temperature without
sleep shift and the room
temperature.
The 60 minutes of defrosting
prohibition 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
minutes.
The defrosting signal is not
accepted with overload input, and
the operation becomes as shown
below when the overload input
disappears.
(1) When previously the
defrosting signal existed
without overload 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.