HydroTherm HeaetNet V3 KN-10, Информация пользователя

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OPTIONAL FEATURES HeatNet Control V3 2.x
Page 47
Supply sensor will limit the temperature/firing rate of the
boiler, but may not be sufficient for continuous demand or
speed in heating the tank. It is already available, so no
additional sensor is needed.
Return sensor will allow the boiler to run its supply
temperature up quickly, but may bounce off of the
operating limit band. This would heat the tank in the
shortest time, but may overheat the tank. It is already
available, so no additional sensor is needed.
DHW sensor will allow the placement anywhere needed
to maintain that locations temperature. This is an
additional sensor that needs to be acquired.
A thermostat can be placed in a tank and connected to the
OR OVR input. (
On Member boilers only, The Master
uses OR OVR already with DHW METHOD 4), When
the thermostat contact closes across the input
OR OVR
(J12A .7 & .8) on a Member boiler , the control will sense
this closure and disconnect itself from HeatNet.
DHW METHOD 6: DHW using Direct
Control
If the control‘s 4-20mA input is set to HIGH PRIORITY the
4-20mA signal, once brought above the 4-20mA starting
current can be used to override any other Heat Demand and
direct modulate the boiler.
This can be set in menu: ADVANCED SETUP:4-20mA
INPUT . It allows a member boiler to be taken offline and
directly modulated by an external control.
If the Master is using it for heating and the 4-20mA is set to
HIGH PRIORITY, an external control can now output a 4-
20mA signal which will take over the boiler‘s fire rate and
override all other heating demand inputs. The external control
would also need to open any valves/ or pumps This is
typically used for DHW control.