Instructions / Assembly

9
<5> Flow alarm and output ports
In order to guarantee the equipment will not be damaged while cooling
water circulation is out of control, 5000/5200series chillers possesses an
unique low flow alarm protection.
Flow alarm output ports and the wiring diagram
(1)
(2) Flow alarm causes of circulating cooling water and working state
Normal
flow
indicator
Flow
alarm
indicator
Buzzer
Output ports
H1, H2
Output ports
H1, H3
Circulating
pump works
properly
ON OFF
NOT
RING
DISCONNECTION BREAKOVER
Blocked cooling
water
circulation loop
OFF ON RING BREAKOVER DISCONNECTION
Alarm of water
shortage
OFF ON RING BREAKOVER DISCONNECTION
Faulted
circulating
pump
OFF ON RING BREAKOVER DISCONNECTION
Power interruption BREAKOVER DISCONNECTION
Note: The flow alarm is connected to the normally open relay and normally closed
relay contacts, requiring operating current less than 5A, working voltage less
than 300V.