Hitachi RCUE40AG2 Service Manual page 92

Air cooled water chillers, cooling only and heat pump, cooling capacity 106/112 kw - 585/556/1030 kw
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Troubleshooting
DSW5-6: Pulse width in Seconds for Load Up Slide Valve in compressor in LOAD UP1 Mode.
(SVn-UP: Coil energizing)
Figure
Location
ON
Time (minute)
12
DSW5-7,8: Pulse width in Seconds for Load Up Slide Valve in compressor in LOAD UP2 Mode.
(SVn-UP: Coil energizing)
Figure
Location
ON
Time (minute)
DSW5-9,10: Frequency of Load Up Slide Valve in compressor.
(SVn-UP: Coil energizing)
Pulse width [DSW5-6]
Frequency
Pulse width [DSW5-9,10]
PCB
DSW6: Optional Function B
B1
(PCB
DSW6: No function. Keep DSW6-4 in OFF)
B2
DSW6-2: ON: Pump freeze protection activated (T
DSW6-2: ON: Pump freeze protection activated (T
DSW6-2: ON: Pump freeze protection activated (T
OFF: Pump freeze protection disabled
[DSW6-1,3,4:
OFF; Not available]
Pulse width [DSW5-6]
Frequency
Pulse width [DSW5-9,10]
PCB
DSW7: Optional Function C
B1
(PCB
DSW7: No function)
B2
DSW7-1,2: Temperature Range for Brine Opt.
[DSW7-1,2: Both in ON; this function is not available)
Figure
Location
OFF
Time Range
DSW7-3: ON; Thermo OFF is delayed after Outlet Temperature is below Thermo OFF setting for 3 min.
DSW7-4: ON: Used only in case of remote control through H-LINK (e.g.:CSC-5S, HARC)
pag. 90
SMGB0003 rev.0 - 01/2007
6
6
OFF
24
7
8
7
ON
ON
2
4
1
2
1
OFF
ON
Standard
-5~5 ºC
8
7
8
OFF
OFF
ON
6
= 2ºC)
ambient
ambient
2
1
2
OFF
OFF
ON
-10~6 ºC
7
8
OFF
OFF
8

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