Hitachi RPC-6.0FSR - Page 74

CONTROL SYSTEM
1-64
TCI-20007-rev.1
n
Heating Operation
3
I.U.: Indoor Unit
O.U.: Outdoor Unit
STOP
Heat
Rejection
Operation
Shorter than
2 min.
After 2 min.
Power to
I.U.: OFF
Power to
O.U.: OFF
I.U. Air
Outlet
Temp.
I.U Air
Outlet
Temp.
Operation
at Slo Fan
Speed
> 50
o
C
> 40
o
C
< 40
o
C
< 50
o
C
Power to I.U. PCB: OFF
Power to O.U. PCB: OFF
RUN Indicator: OFF,
HEAT, Set Air Flow Volume & Set Temp. Indications: Continuously ON
LCD Indication: OFF
Resetting of Timer for Defrosting
Power to CH : OFF
< Set Temp. + 2
o
C
Heating
Operation
> Set Temp. +2
o
C
I.U. Air
Intake
Temp.
A
Thermo-OFF
Inverter: OFF
Power to Y52C or RY
1 : OFF
Temp. at To p
of Compressor
I.U. Air
Intake
Temp.
< Set Temp.
>
Set Temp.
MIF Operation
at Low Fan Speed
Control of MOF Fan Speed
(including Stop)
Control of MC Frequency
(including Stop)
MIF Operation
at Slo Fan Speed
Press
RUN/STOP
Switch
< Td Target Temp. - 15
o
C
> Td Target Temp. - 10
o
C
MIF Operation: OFF
MIF Operation: OFF
MC Operation: OFF
Power to CH : ON
Power to CH : OFF
Power to CMC : OFF