Nortec NHDI, Installation & Operation Manual

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Low Voltage
Controls Wiring
24 Vac
Primary Wiring
Copper Funnel
Drain (by others)
LCD Keypad
Display with
LED Status
Scale
Collector
Tank
NHSC
Air
Gap
Drain Line
1.75" O.D.
Humidistat
Steam Line
Connection
NHSC
NHDI
uses Nortec steam
hose 1.75” O.D. Or Med.
L Copper Insulated
uses Nortec steam
hose 1.75” O.D. or
stainles steel pipe.
Do not exceed 10 ft
when using steam hose.
Condensate trap
must be 2” greater
than duct static
pressure.
NOTE: NHDI does not have the scale management system.
Steam
Inlet
Min
24”
Water
Supply 3/8”
Figure #10
Typical Duct Application using Standard Distributor
Low Voltage
Controls Wiring
24 Vac
Primary Wiring
Copper Funnel
Drain (by others)
LCD Keypad
Display with
LED Status
Scale
Collector
Tank
NHSC
Air
Gap
Drain Line
1.75" O.D.
Humidistat
Steam Line
Connection
NHSC
NHDI
uses Nortec steam
hose 1.75” O.D. Or Med.
L Copper Insulated
uses Nortec steam
hose 1.75” O.D. or
stainles steel pipe.
Do not exceed 10 ft
when using steam hose.
Condensate return
to floor drain, sump
pump or back to the
humidifier
NHSC using a Short Absorption Manifold (SAM-e) in Duct/AHU
Steam
Inlet
SAM-e
Min
24”
Trap depth
2” greater
than duct
static pressure
Water
Supply 3/8”
Figure #9
Typical AHU / Duct Application using a SAM-e