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

CONTROL SYSTEM

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.

10.5 Safety and Control Device Setting

< Indoor Unit >
Model
For Evaporator Fan Motor
Internal Thermostat
Cut-Out
Cut-In
Chip Ceramic PTC
Thermistor
For Control Circuit
Fuse Capacity
Freeze Protection
Thermostat Cut-Out
Cut-In
Thermostat
Differential
1-74
RPC-1.5FSR, RPC-2.0FSR, RPC-2.5FSR, RPC-3.0FSR,
RPC-4.0FSR, RPC-5.0FSR, RPC-6.0FSR
Automatic Reset, Non-Adjustable (each one for each motor)
o
C
o
C
o
C
A
o
C
o
C
o
C
Chip Ceramic
PTC Thermistor (POSISTOR
motor controls the fan motor revolution when the
fan motor internal temperature exceeds the setting.
-
-
100
5
0
11
2
) in the DC fan
R
TCI-20007-rev.1