Hitachi RPC-1.5FSR - Protection And Safety Control; Protection and Safety Control; Safety And Control Device Setting; Safety and Control Device Setting

CONTROL SYSTEM
1-74
TCI-20007-rev.1
< Indoor Unit >
Model
RPC-1.5FSR, RPC-2.0FSR, RPC-2.5FSR, RPC-3.0FSR,
RPC-4.0FSR, RPC-5.0FSR, RPC-6.0FSR
For Evaporator Fan Motor
Internal Thermostat Automatic Reset, Non-Adjustable (each one for each motor)
Cut-Out
o
C -
Cut-In
o
C -
Chip Ceramic PTC
Thermistor
o
C 100
For Control Circuit
Fuse Capacity A 5
Freeze Protection
Thermostat Cut-Out
o
C 0
Cut-In
o
C 11
Thermostat
Di󰀨erential
o
C 2
10.4 Protection and Safety Control
Compressor Protection
The compressor is protected by the following
devices and their combinations.
High Pressure Switch - This switch cuts out the
operation of the compressor when the discharge
pressure exceeds the setting.
Crankcase Heater - This band type heater protects
against oil Carry-over during cold starting, as it is
energized while the compressor is stopped.
Chip Ceramic
PTC Thermistor (POSISTOR
R
) in the DC fan
motor controls the fan motor revolution when the
fan motor internal temperature exceeds the setting.
10.5 Safety and Control Device Setting