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Finned copper tube gas boilers & water heaters – Boiler Manual
26
F
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NOTES:
1. Remove jumper “A” when using a low water
cutoff interlock.
2. For multiple boilers utilizing a system air damper
when in a master/member confi guration consult
the factory or reference wiring diagram 42-0505
sheet 2 for wiring connections.
3. For single boilers or multiple boilers with
individual dampers connect the end proving
switch to terminal block 15 and 16. Terminals
17 and 18 provide 120V power to the damper
motor.
4. There are (2) methods in which a 4-20mA signal
can be used to control HeatNet equipped
boilers.
Method 1
A 4-20mA signal can be used to directly
modulate each boiler from a remote panel or
building management system. On multiple
boiler installations, there is no communication
between boilers, no HeatNet system sensor;
therefore no master/member relationship exists.
(Use Menu: Setup: Setpoints: Setpoint Source:
Auto)
Method 2
A 4-20mA signal can be used to change
the setpoint temperature the HeatNet is
maintaining. This can be used on single
or multiple boilers with a master/member
relationship.
(Use Menu: Setup: Setpoints: Setpoint
Source: 4-20, then set the parameters for the
temperature and boiler start point.)
Figure 18
RBI HeatNet Field Wiring to Terminal Block (BoardRevision 2.0 and Greater)
