Distech Controls ECL-PTU Series User Manual

19ECL-PTU-207 Preloaded Applications
nviAuxHeatEnable (nviFP08)
This input is used to disable auxiliary heat operation.
This input is typically sent from a system supervisor panel. For example, during peak electrical de-
mand periods, electric heat operation could be disabled.
It is also possible to have a hardwired input to a unit controller to be used for auxiliary heat enable.
In instances where both a hardwired input and network input are present, the network variable has
precedence over the physical input.
This input can be used for simple enable/disable functions, or can be used to enable a portion of the
unit’s auxiliary heat capacity. Values less than 100% are used to limit the electric heater operation to
the specified level.
State Value Equivalent percent Auxiliary Heat Operation
0 N/A 0% Limited 0% (disabled)
1 0 0% Limited 0% (disabled)
1 0,5 to 99,5 0,5 to 99,5% Limited (Enabled)
1 100% 100% Not limited (Enabled)
-1 N/A N/A Not limited (Invalid)
ID Units Default Value
nviFP08 SNVT_switch 0% / -1
nviEnergyHoldOff (nviFP09)
This input is used to stop heating and cooling while allowing the unit to protect the space from extreme
temperatures.
When the unit is in Energy Hold Off, the unit will not operate unless the space temperature exceeds
the frost protection setpoint (nciMiscConfig.FrostProtSp (nviFP44)).
This input is usually associated with a device such as a window contact sensor.
If a physical sensor is connected and the network variable is present, the network variable as priority
over the physical input.
State Value Energy Hold Off State
0 N/A Normal 0
1 0 Normal 1
1 1 to 100 Energy Hold Off 1
-1 N/A Normal (Invalid) -1
ID Units Default Value
nviFP09 SNVT_switch 0% / -1
nviSourceTemp (nviFP10)
This input network variable is used to indicate the temperature of water being supplied to the unit for
heating and/or cooling capacity.
Valid values of nviSourceTemp have priority over local sensor values.
When using 2 pipes change-over systems, this value will be used to determine the heat/cool mode.
See nvoChgOver (nvoFP21) for more information about the heat/cool management.
ID Units Valid Range Default Value
nviFP10 SNVT_temp_p (°C) 0 to 100¨C 327,67°C
Variables

Distech Controls ECL-PTU Series Specifications

General

Brand	Distech Controls
Model	ECL-PTU Series
Category	Controller
Language	English