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heat-timer Mini-Extension Installation And Operations page 30

Sequencing modulating control for hydronic heating systems
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30
Heat-Timer Corp.
MULTIPLE MODULATING BOILERS
EXTERNAL 4-20MA SET POINT
USING 4-20MA EMS INTERFACE
4-20mA EMS Interface
4-20 mA EMS
4-20mA INPUT
RS485
+
Signal GND
EXTENSION
1
2
CONNECTORS
3

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