Basic Mode - Hitachi RAS-EH36PHLAE Service Manual

BASIC MODE

Fan
Basic operation of
start/stop button
Off-timer
rJ)
C
C
<ii
E
F
On-timer
Changes from "Hi" to "Med" or
"Lo" depending on room
temperature.
Auto
Setting temperature
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":.
� �
Th,�o j<,dgme,t
1. Runs at "Hi" until room temperature reaches to
setting temperature-SFTDSC" after operation is
started.
0
2. Runs at "ultra-Lo" when thermo is off.
C
Cl)
Hi Operates at "Hi" regardless of the Set to "ultra-Hi" when the compressor runs at
-0
0
room temperature. cold dash mode speed, and to "Hi" in other
E
modes. Runs at "ultra-Lo" when thermo is off.
-0
Cl)
Cl)
rJ)
C
Operates at "Med" regardless of
Med
Operates at "Med" regardless of the room temperature.
the room temperature.
Runs at "ultra-Lo" when thermo is off.
Lo Operates at "Lo" regardless of the
Operates at "Lo" regardless of the room temperature.
room temperature.
Runs at "ultra-Lo" when thermo is off.
Silent
Operates at "Silent" regardless of the
Operates at "Silent" regardless of the room temperature.
room temperature.
Runs at "ultra-Lo" when thermo is off.
Basic operation of Performs only fan operation at the See page 55
set speed regardless of the room
temperature controller '-- :._ ===
� • all - �fili' · �
temperature .
�1
Hi Med Lo Si
I
Cooling
Dehumidifying
;:, �' Room temperature
/
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� �
ON=t:�-=
o ON
OF'�
Com ressor
Lo - -
I I {Compressor stopped
3'
-----IE- forcibly for 3 minutes)
�
Set to "Lo" in modes other than when the
compressor stops.
Set to "Silent" in modes other than when the
compressor stops.
See page 57
□
■ ■ ■ ■ ■
□
■
I
Heating
r r r
Start Stop Start Stop
■
s : r11stop button
I
0 eration lamp
- - - -
- - - -
Startlsto button •
-
Reserve button
I I I
ancel hutton
Ooeration lam
nmer lamp
____,,,. .J---: -··
____,,,.
nmer memory
(Off-timer during stop) (Change in reserved time)
- - -
-
- -- --
-
Start/stop button
- -
I I I
Reserve button -
Cancel button I I I
□ □ I
O eration lam
Timerlamn -- -�
--·· 1111111 __l-··;
Timer memory ---- ___..J
(Change in reserved time) (On-timer during operation)
Set to "ultra-Lo","Silent","Lo","Med","Hi"," ultra-Hi" or " stop" depending on the room
temperature, time and heat exchanger temperature. Set to "stop" if the heat exchanger
temperature is "DNZKOF" during Thermo OFF.(When reach at "DNZKON", fan speed set
to "ultra-Lo" again.)
In modes other than left
When the compressor is running at maximum
speed
Heat exchanger temperature
NORU� �
t
defrosting. �
during hot-dash or when recovered from
DASUPHH
r-
NORUPL
DASUPH
DASDNH NOR�� --,t-- NORDNS -
' _/
/ -s: ,- �
DASUPL
1-
DASDNH
DASUPS /
� □
ASDNL
/ - - □
DNZKON
/ '\_DAS NS
DNZKOF
- -
- -
- - -
Ultra Hi..-h
Hiim
---
Med
Low ----
Silent
90" Fan speed UP/DOWN delay time 90" Fan speed UP/DOWN delay time
Set to "ultra-Lo","Silent","Lo","Med",''Hi","ultra-Hi" or "stop" depending on the room
temperature, time and heat exchanger temperature. Set to "stop" if the heat exchanger
temperature is "DNZKOF" during Thermo OFF.(When reach at "DNZKON", fan speed set
to "ultra-Lo" again.)
Set to" ultra-Hi" when the compressor is running at maximum speed during hot dash or when
recovered from defrosting.
Set to "ultra-Lo","Silent","Lo","Med","Hi","ultra-Hi" or "stop" depending on the room
temperature, time and heat exchanger temperature. Set to "stop" if the heat exchanger
temperature is "DNZKOF" during Thermo OFF.(When reach at "DNZKON", fan speed set
to "ultra-Lo" again.)
Set to "ultra-Lo","Silent","Lo","Med","Hi","ultra-Hi" or "stop" depending on the room
temperature, time and heat exchanger temperature. Set to "stop" if the heat exchanger
temperature is "DNZKOF" during Thermo OFF.(When reach at "DNZKON", fan speed set
to "ultra-Lo" again.) The fan speed is controlled by the heat exchanger temperature; the
overload control is executed as in the following diagram:
Heat exchanaer tem□erature
t1 - ,
PDCIN2
LJ LJ
PDCOF2 ,, /I ' /I ' /I
"Med","Lo""Silent"X108% L
"Med","Lo""Silenf·
____. ..______ 1......1
See page 59
54
Operating mode is judged by room temperature.
(1) Judging by room temperature (Initial judgement)
(a) Condttions for judgment (any of the followings).
When auto operation is started after the previous auto mode operation.
When auto operation is started after the previous manual mode operation.
When the operating mode is switched to auto while operating at manual mode.
(b) Judging method
NORDPH
NORDNL
[ Cooling ]: Room temperature � Remote controller setting
I" [ Heating ] : Room temperature <
------+----------- ---1
[ Room temperature setting of
remote controller ]
(2) Judging by room temperature (continuous judgement)
(a) Judging condition
• Operating mode will be judge again after auto mode interval time
(1)
1st interval [auttmn1_8u]
(2) 2nd interval [auttmn2_8u]
(3) 3rd and next interval [auttmn3_8u]
(b) Judging method
• Judging method will follow as below
• Final set temperature is remote controller setting including shift value
[Current operation is COOLING]
• Room temperatures Final set temperature - [nwautw_Bu], change to HEATING
• Room temperature> Final set temperature - [nwautw_Bu], continue in COOLING
[Current operation is HEATING]
• Room temperature:. Final set temperature+ [nwautc_Bu], change to COOLING
• Room temperature> Final set temperature+ [nwautc_Bu], continue in HEATING
Follow basic cooling or heating operation
Auto
Remote controller setting
Cooling
Heating