Hitachi RAS-10FSXNPE, Instruction Manual

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remote Control
switch indication
Wrong Portions inspection Points after Power source off
No indication
The power source of Outdoor Unit is not turned ON.
The connection of the remote control cable is
incorrect.
1
Connecting Points of Remote Control Cable terminal board of
Remote Control switch and indoor unit.
2
Contact of Terminals of Remote Control Cable
The connecting wires of power supply line are
incorrect or loosened.
3
Connection Order of each Terminal Board
4
Screw Fastening of each Terminal Boards.
Counting number of
connected units is
incorrect
The power source of Outdoor Unit is not turned ON.
The operating line wiring between indoor unit and
outdoor unit is not connected.
The connection of control cables between each
indoor units are incorrect. (When one remote control
switch controls multiple units)
5
Dip Switch Setting on Printed Circuit Board
6
Connecting on the PCB
7
This is the same as item 1, 2 , and 3.
Instructions fot the recovery when the fuse of the transmission circuit is blown out:
1
Correct the wiring to the terminal board.
2
Set the 1st pin of DSW7 on the indoor unit PCB to ON.
12 main safetY DeViCes
Compressor protection
The compressor is protected by the following devices and their combinations:
1
Pressure switch: this switch stops the compressor when the discharge pressure exceeds the set value.
2 Oil heater: this band-type heater protects against the formation of foam on the oil during cold starts and remains enabled when
the compressor is at a standstill.
model ras-8fsXnse ras-10fsXnse ras-12fsXnse ras-14fsXnse ras-16fsXnse
for Compressor
Pressure Switches
Automatic Reset, Non-Adjustable
(each one for each compressor)
High
Cut-Out MPa 4.15
-0.05
-0.15
4.15
-0.05
-0.15
4.15
-0.05
-0.15
4.15
-0.05
-0.15
4.15
-0.05
-0.15
Cut-In MPa 3.20
+0.15
3.20
+0.15
3.20
+0.15
3.20
+0.15
3.20
+0.15
Fuse Capacity 3N~ 400V 50Hz A 50 50 50 50 50
Oil Heater Capacity W 37.3 x 3 37.3 x 3 37.3 x 3 37.3 x 3 37.3 x 6
CCP Timer Non-Adjustable
Setting Time min. 3
for DC fan module
Fuse Capacity 3N~ 400V 50Hz A 5 5 5 10 5
model ras-18fsXnse ras-20fsXnse ras-22fsXnse ras-24fsXnse
for Compressor
Pressure Switches
Automatic Reset, Non-Adjustable
(each one for each compressor)
High
Cut-Out MPa 4.15
-0.05
-0.15
4.15
-0.05
-0.15
4.15
-0.05
-0.15
4.15
-0.05
-0.15
Cut-In MPa 3.20
+0.15
3.20
+0.15
3.20
+0.15
3.20
+0.15
Fuse Capacity 3N~ 400V 50Hz A 50 50 50 50
Oil Heater Capacity W 37.3 x 6 37.3 x 6 37.3 x 6 37.3 x 6
CCP Timer Non-Adjustable
Setting Time min. 3
for DC fan module
Fuse Capacity 3N~ 400V 50Hz A 5 5 5 5
ENGLISH
MAIN SAFETY DEVICES
PMML0479 rev.4 - 11/2018 47