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Neptronic SKE4-E Series - Installation Menu (Continued); Physical IO Configuration

Neptronic SKE4-E Series
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SKE4-E Steam Humidifier
Installation Instructions and User Manual
www.neptronic.com
Page | - 52 -
Menu - Installation [Level 4 - Requires level 4 (or higher) password in order to access]
Sub-Menu
Setting
Default
Range
Description/Notes
Quick Config
DrainInterval:
6hr
min: 0hr, max: 24hr
Set the frequency of the drain cycle. In general, a more frequent drain cycle is
required as the water hardness level rises. The drain cycle setting does not affect the
AFEC system.
IdleTime:
24hr
min: 0hr, max: 72hr
Set the amount of time the humidifier can remain in standby mode until an automatic
drain cycle is performed.
BlowdownRate:
0%
min: 0%, max: 100%
Define the rate of boiler blowdown or water dilution, in order to minimize water
impurities.
ServInterval:
1000hr
min: 1000hr, max: 3000hr
Set the time of operation before the humidifier calls for servicing.
ServOperation:
Allowed
Not Allowed, Allowed
Select whether to enable the unit to continue producing steam, even when it is due
for servicing.
When set to Allowed, the unit will continue operating even when a service alarm is
active.
FillMode:
Pulsed
OneShot, Pulsed
Select the water filling method for the fill valve:
When set to OneShot, water will continuously flow.
When set to Pulsed, water will flow in short bursts.
Control
ControlProfile:
ExternAnalog
ExternAnalog, ExternNetwork, InternAnalog,
InternNetwork, HRL, Custom
Select a preconfigured control mode profile for the modulating humidity demand.
Select the Custom option to configure individual settings.
(Network option only applicable for BACnet models.)
ModHLProfile:
Disabled
Disabled, ExternAnalog, ExternNetwork,
InternAnalog, InternNetwork, Custom
Select a preconfigured control mode profile for the modulating high limit demand.
Select the Custom option to configure individual settings.
(Network option only applicable for BACnet models.)
RoomDemandLoop [2]
Only appears if ControlProfile is set to an internal control mode or
HumCntrlDemandSrc is set to RoomDemand.
RoomRHSrc:
None
None, RoomRH, Network
Select the reading source for the room demand.
(Network option only applicable for BACnet models.)
RoomRHStptSrc:
None
None, Internal, ControlInput
Select the room demand setpoint source.
SupplyHLLoop [2]
Only appears if ModHLProfile is set to an internal control mode or
HumCntrlHLSrc is set to SupplyHLDemand.
SupplyHLReadingSrc:
None
None, SupplyHLRH, Network
Select the reading source for the supply high limit demand.
(Network option only applicable for BACnet models.)
SupplyHLStpntSrc:
None
None, Internal, ControlInput
Select the supply high limit demand setpoint source.
HumidityControl [5]
HumLowDeadBand:
1.00%
min: 0.00%, max: 100.00%
Set the lower limit deadband value for the humidity demand.
NtwkTimeout:
900sec
min: 1sec, max: 900sec
Define the amount of time the humidifier may attempt to connect to the BACnet or
Modbus network before it stops operating due to a communication error.
(Only appears if ControlProfile or ModHLProfile are set to InternNetwork or
ExternNetwork.)
HumCntrlDemandSrc:
ControlInput
None, ControlInput, RoomDemand, Network
Select the humidity control demand source for modulating humidifiers.
(Network option only applicable for BACnet models.)
HumCntrlHLSrc:
None
None, ControlInput, SupplyHLDemand,
Network
Select the humidity control high limit source for modulating humidifiers.
(Network option only applicable for BACnet models.)
HumCntrlBinDemandSrc:
None
None, BinaryExtDemand
Select the humidity control demand source for On/Off humidifiers.
Physical IO
AlwaysRoomRH:
Off
Off, On
Select whether to always display the RoomRHSigType setting, regardless of the
configuration selected in the ControlProfile setting.
AlwaysSupplyRH:
Off
Off, On
Select whether to always display the SupplyRHSigType setting, regardless of the
configuration selected in the ModHLProfile setting.
CntrlSigType:
0-10Vdc
0-10Vdc, 2-10Vdc, 4-20mA, 0-20mA
Select the signal type for the control demand analog input.

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