Protection And Safety Control; Safety And Control Device Setting - Hitachi FSG1 Series Technical Catalogue

CONTROL SYSTEM
9
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9.4.

PROTECTION AND SAFETY CONTROL

Compressor Protection
The compressor is protected by the following devices and
their combinations:
High Pressure Switch
Oil Heater
Fan Motor Protection
9.5.

SAFETY AND CONTROL DEVICE SETTING

Safety and Control Device Setting for Indoor Units
Model
For Evaporator Fan Motor
Internal Thermostat
Cut-Out
Cut-In
For Control Circuit
Fuse Capacity
Freeze Protection
Thermostat
Cut-Out
Cut-In
Thermostat Differential
Safety and Control Device Setting for Outdoor Units
Model
For Compressor
Pressure Switches
High Cut-Out MPa
Cut-In MPa
Fuse
3~, 380/415,
50Hz
FSG
Oil Heater
Capacity
FXG
CCP Timer
Setting Time
For Condenser Fan Motor
Internal Thermostat
Cut-Out
Cut-In
For Control Circuit
Fuse Capacity on PCB
CCP Timer: Enforced 3 minutes operation and stoppage.
This switch cuts out the operation of the compressor when the discharge pressure exceeds the
setting.
This band type heater protects against oil carry-over during cold starting, as it is energized while
the compressor is stopped.
Internal Thermostat-Embedded in the fan motor winding, this internal thermostat cuts out the
operation of the fan motor when the fan motor winding temperature exceeds the setting.
RCI RCD
°C 145±5 130±5 135±5
°C 90±15 83±15 90±15
A
°C
°C
°C
RAS-8FSG
RAS-5FSG
RAS-8FXG
A
20 20
97
97 (Const. Comp.)
(Inv. Comp.) 97
(Oil Separator)
W
97x2
(Const. Comp.)
97
(Oil Separator)
min
3 3
ºC
130 130
ºC
83 83
A
10 10
RPC RPI RPK
140±5 130±5
90±15 83±15
5
0
14
2
RAS-10FSG
RAS-16FSG
RAS-10FXG
Automatic Reset, Non-Adjustable
(each one for each compressor)
- . 0 05
3.3
- . 0 15
2.7 ± 0.15
20 32
97 97x2
(Const. Comp.) (Const. Comp.)
97 97
(Oil Separator) (Oil Separator)
97x2
(Const. Comp.)
97
(Oil Separator)
Non-Adjustable
3 3
Automatic Reset, Non-Adjustable
(each one for each compressor)
130 130
83 83
10 10
RPF RPFI Remarks
Automatic Reset,
Non-adjustable
(each one for each
130±5 130±5
motor)
83±15 83±15
RAS-20FSG RAS-24FSG1 RAS-30FSG1
RAS-20FXG1
32 (FSG)
20´2 + 32´6
32x4+40x2
(FXG1)
97x3 40x3
(Const. Comp.) (Inv. Comp.)
97 40+60x2
(Oil Separator) (Const. Comp.)
40
(Inv. Comp.)
40+60
(Const. Comp.)
3 3
130 130
83 83
10 10
RAS-30FXG1
20´2 + 32´2
+ 40´4
40x3
(Inv. Comp.)
40+60x2
(Const. Comp.)
40´3
(Inv. Compr.)
40+60x2
(Const. Comp.)
3
130
83
10