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Installation
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EN-RaychemHWATECOcontroller-IM-H57340 03/13
Alarms and Troubleshooting” for more information
about alarm conditions.
The alarm contact is designed as a fail safe mode
and can be wired for normally open (NO) or normally
closed (NC) operation. The following table summa-
rizes the relay positions in the different controller
states:
Position
NC
NO
Power Off
Open
Closed
Power On
Closed
Open
Alarm Mode
Open
Closed
Network
The Master/slave function allows one HWAT-ECO to
control up to eight additional HWAT-ECO controllers.
Connect all HWAT-ECO controllers to each other in
parallel using the A and B inputs on terminal (PL3).
This means that several controllers will have two
wires in one hole. The wire should be a twisted pair
and be rated for 300 V. The total maximum length
of this cable between all controllers is 328 ft (100
m). Be careful not to mix A and B connections. To
connect a wire, use a screwdriver to push down the
orange tab on the side of the terminal. Put the wire
into the hole and release the orange tab.
