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NeoTherm Boilers and Water Heaters
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N
EO
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Boilers and Water Heaters
8.7.4 DHW - Domestic Hot Water
Confi guration
DHW - Domestic Hot Water is used to confi gure the DHW
temperature parameters for water heaters (NTV) and for
indirect water heaters that are used with boiler (NTH) systems.
8.7.5 Warm Weather Shutdown
Confi guration
From this sub-menu you will be able to enable/disable the
Warm Weather Shutdown feature and adjust the set point.
8.7.6 Demand Priority Confi guration
From the Demand Priority Confi guration, the installer can
adjust the priority of the different demand types.
-Central Heat
-Domestic Hot Water
-Lead Lag
The control uses arrows as indicators to point to the loop with
higher priority.
8.7.7 Modulation Confi guration
From this sub-menu the installer has the ability to adjust
the range of modulation for the CH, and DHW demands.
NeoTherm is designed with a 5:1 turn down ratio. Any
change to the minimum and maximum modulation rates
will affect the overall ratio of the boiler. The installer level
password will allow changes to these parameters. Consult
the factory if an adjustment is needed to any of these
parameters.
8.7.8 Pump Connections
The controller in the NeoTherm energizes the pump contacts
when it receives a call for heat. Once the call for heat is
satisfi ed, the pump will remain on for the defi ned pump
overrun time.\
The Boiler Pump terminals (TB5 - max 7.4 FLA) are fed by
120V (violet wire) internally from the main power feed. The
System and DHW contacts are dry contacts. Appropriate
voltage must be supplied to the System and DHW pumps for
proper operation.