HydroTherm HeatNet KN -6 User Information page 53

WIRING CONNECTIONS
Figure 33 Relays, Interlocks and Boiler Status
Low Voltage
Interlocks, 24VAC
Remote 120 VAC
Operator
JUMPER
WIRE if
not used
Stage Control
Damper Control
Local Pump or
Power Open/ Power Close Valve
The Highest priority
Alarm
SYSTEM FLOW PROVE ---------
Low Water Cutoff-------------------
Variable Frequency Drive --------
Gas Pressure (High & Low) -----
Spare for user or Factory ------
Operator------------------------------
Water Flow Switch-----------------
Factory ------------------------------
DHW Pump or
Power Open/ Power Close Valve
HeatNet Control V3 2.x
1
2
3
4
5
6
7
8
USB and Flashdrive Ports:
Used by HeatNet Pro and
updating firmware.
Low Fire Hold: Fires the boiler at
the minimum rate while in
Calibrate. This functions exactly
as the T1 input
Calibrate: Allows adjustment of
the Minimum Fire, Maximum
Fire, and Pilot Ignition settings.
Combustion proving switch
from Combustion Air Damper.
Page 53