Hitachi SAMURAI Series Service Manual page 39

Condenserless water chillers
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2. Control Functions
Control functions on the module

Pulse input type 2 (external DC24V source)
a. Signal aspect and basic sequence
For wiring
Remove
Time chart
b. Setting method
Since it applies remote control, it is not required to change any settings at the LCD screen.
N O T E
• Do not bundle the additional wiring together with other control circuits, and in particular with wiring for 230V or 400V.
• Put the additional wiring separately inside a metallic pipe, or use a shielded wire.
32
SMGB0097 rev.0 - 07/2015
(OFF)
(ON)
Local works - parts to be arranged locally 
ON
OFF
Run
More than 5 min
ON
OFF
Run
Unit
Stop
(ON) signal
(OFF) signal
(field supplied)
ON
More than 200 ms
ON
Stop

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