Hitachi RPC-1.5FSR - Standard Operation Sequence

CONTROL SYSTEM
TCI-20007-rev.1
1-59
10.3 Standard Operation Sequence
Each of the following operation sequences is just one example when the unit is combined with DC Inverter
UTOPIA Series Outdoor Unit.
n
Cooling Operation
Power to
I.U.: ON
Press
Temp. Setting
Switch
Press
RUN/STOP
Switch
Press
Fan Speed
Switch
Power to
O.U.: ON
Set
Operation Mode
at “COOL”
Power to
O.U. PCB: ON
I.U.: Indoor Unit
O.U.: Outdoor Unit
Temp. at Top
of Compressor
> 75
o
C
< 75
o
C
Power to
I.U. PCB: ON
Power to YH2
in I.U.: OFF
only for indoor unit
with auto-louver
Auto-Louver
0 Reset
Start of Transmission between
O.U. and I.U.
Start of Transmission between
I.U. and Wired Controller
ON
(Lower than
Activation Level)
OFF
(Higher than
Activation Level)
Power to YH2 in
I.U.: ON
FS
for unit with drain pump
COOL Indication
LOW Indication
Run Indicator Lights.
MEDIUM
Indication
Power to YH2 for 20 sec.
LOW
HIGH
(HIGH 2)
MED
Switch: Increasing Set Temp.
Switch: Decreasing Set Temp.
Fan Speed
Switch
Cooling
Operation
> Set Temp.+1
o
C
> -5
o
C
< -5
o
C No
Yes
< Set Temp.
I.U. Air
Intake
Temp.
Outdoor
Temp.
Elapsed Time:
1 sec.
to 1
Press
AUTO-LOUVER
Switch
< Alternately >
Start of
Auto-Louver
Stop of
Auto-Louver
only for Air Panel
or Indoor Unit
with Auto-Louver
Indication
of Set Temp.
HIGH (HIGH 2)
Indication
Power to
YH2 : ON
for unit with drain pump
Power to
Y52C
RY
1 : ON
MIF Operation at
Set Fan Speed
Power to
CMC :
ON
Power to CH : ON
Power to CH : OFF
MD Operation: ON
MC Operation: ON
MOF Operation: ON
MD Operation: ON