Chapter 2: Pre-Installation Planning
• Do not connect both the opening and the closing of an inlet machine to normally closed (NC) con-
tacts of two different relays
• The open and close outputs of a given inlet must be on the same board
• Heaters must not be connected to the normally closed contact of a relay
• Both outputs on dual capacity heaters (low and high fire) must be connected to the same module
• Both outputs (0-10V and relay) on variable heaters with a starter signal must be connected to the
same module
• It is not possible to assign more than one variable output module to a 0-10V output (with their associ-
ated current sensor)
• Alarm relays related to temperature should be on the same module as at least 1 of the inside tem-
perature probes
• Alarm relays related to static pressure should be on the same module as static pressure sensors
• Water meter alarm relays used for water shut-off valves should be on the same module as water
meters
• Auger run time input and relay should be on same module
Power Supply
The power consumption of EDGE 2 Controllers are similar to the previous EDGE Main Controller. To
upgrade an EDGE system, swapping out the Main Controllers is very easy if no new hardware features
are implemented.
For example, new cellular bases are installed to a current system. This new feature could overload the
power consumption of Expansion Boxes. To solve this problem, use an EDGE PSU 24V 36W close to the
problematic EDGE 2 Controller and supply it directly. This solution can also be used in the case of voltage
drop on an EDGE network that may be too long.
890–00687 EDGE 2
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