Features & Specifications; Standard Features Overview - HydroTherm HeatNet KN -6 User Information

FEATURES & SPECIFICATIONS
Features & Specifications
HeatNet Version 3.x Discontinued
Features from Version 2.x Control
1. With this hardware release the service power,
switched power, and the power switch connector
have been removed. These were available on
prior versions of the HeatNet control. Upgrading to
this control from prior versions will require some
wiring changes using an upgrade kit.
2. The J10B input is no longer supported for proving
the damper. Damper proving switches will need to
be wired to J12B. J10B wires from the prove
switch should now be connected to J12B.
3. If a stack sensor is used with this version, the
alarm silence switch can not be connected and the
disconnected wires should be terminated
appropriately.
Silencing the alarm can be done by holding the
BACK and SELECT keys down at the same time.
Hardware Version 3.x Control
Additional Features
(Identified by circuit board color: BLACK)
1. Support for (2) Circulator pumps. Two rotation modes
are provided: Based on system runtime or system pump
runtime hours. Pump failure switchover/retry mode.
2. Warm weather shutdown, (2) pump jog and local pump
jog to keep pumps from seizing.
3. The Modbus, BACnet or LonWorks communications
port can be accessed concurrently with the USB port
(HeatNet Control Pro). The BACnet, LonWorks, or
Modbus connections do not need to be disabled to use
the USB ports.
4. The DHW pump and the Local Pump relay connections
now provide a normally closed contact. This allows for
the use of a power open/power close valve.
5. Support for 5ma 0-10v control signals using third party
controls.
6. Support for (2) display types: Vacuum Florescent and
Color LCD using the same 20 pin ribbon cable.
7. System Return sensor input.
8. Enhanced bootloader and firmware storage. One
firmware storage location for user updates. One
firmware program that always remains resident so that a
factory program can be restored. Primary loading is
with a flashdrive.
9. Support for High Efficiency Ametek blowers.
10. 32 bit Microcontroller operating @64Mhz with 5-stage
pipeline, and prefetch cache.
11. (3) stage control relay outputs for TBD applications.
12. Backwards compatible with existing HeatNet versions
1.x and 2.x controls and applications.
13. Support for 135 Ohm control actuators.
14. 1k Platinum Stack sensor
15. Flow meter input or BMS GPM input/control
16. On-board HeatNet Online network module.
17. Dual PID controls. One for space heating and one for
DHW heating. Allows for simultaneous DHW/Space
heating.

Standard Features Overview

1. Five levels of external control inputs, including
modulation and staging that provide application
flexibility.
2. Digital Communications Control (analog 4-20ma and 0-
10vdc control supported, but not required).
a. Boiler to Boiler : HeatNet (H-Net)
b. Building Management System (MODBUS,
Optional BACnet or LonWorks) to Boiler
3. Distributed control using the HeatNet (H-Net) protocol
for up to 16 boilers. Eliminates the need for ―wall
mounted‖ controls.
4. Analog Control 4-20ma and 0-10vdc (5mA minimum
current) signals supported.
5. System/Boiler operating status text display
6. Interlock, Event, and System logging with a time
stamp.
7. Advanced PID algorithm optimized for the KN-Series
boilers.
8. (4) Dedicated temperature sensor inputs for: Outside
Air Temperature, Supply (Boiler Outlet) Temperature,
Return (Boiler Inlet) Temperature, and Header
(Common System Supply) Temperature.
9. Automatically detects the optional temperature sensors
on power up.
HeatNet Control V3 2.x
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