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Humidifier Mandatory Pre-Start-up Checklist (p.1 of 2)
Unit Serial #: ________ # of humidifiers: _____ Tag:_____________
Unit type: NHSC / NHDI
Voltage: _____V/___ph Steam output: ____lbs./hr
Customer/Job:_______________ Address: __________________________________________________
Inspected by: _____________ Date of inspection: ___/___/___
______________________________________________________________________________________________
W
WATER QUALITY:
- Well water r -City water r -Softened water r
- Conductivity: _______mhmos - Hardness: _____gr. –Silica____ppm
HUMIDIFIER MOUNTING:
Clearances around the unit Acceptable Obstruction
- Front (door opens freely?) 3ft min
r _______________
- Top (steam lines) 1ft min r ____________________
- Bottom (fill, drain, controls) 1ft min
r ____________________
- Right (main pwr) 3ft min
r ____________________
- Left (main pwr) 2” min
r ____________________
- Ensure the scale tank bracket is locked in place
r
STEAM LINES: CONDENSATE LINES:
- Slope up 2” per 12” r - Slopped back to drain r
- Slope down ½” per 12” r - Trapped 2” more than static duct pressure r
- Traps r - Size _______
- Insulated
r
- Length/Size ____________
- 90 deg. elbows qty: ____ - 45 deg. Elbows qty: ____
- Can condensate be trapped anywhere in the steam line? Yes
r no r
WATER LINES:
-½” at max 4ft from the unit - 3/8” connection at fill
-water pressure: 30-80psig
DRAIN LINES:
-Air gap located within 3ft of the unit r - Slopped to drain r -Size:________
WIRING:
No loose wires around the unit or on the PC board? Yes r no r
CONTROLS:
Installed Location / Wiring /Setting
- High limit:
r _____________________
- Air proving:
r _____________________
- Mod controller:
r _____________________
- Other:
r _____________________
POWER
- Voltage, amperage rating and fuse corresponds to Spec Label r
- Disconnect switch located close to humidifier r
Field contact:___________________________ Signature:_______________________________
NHSC / NHDI Electric Steam Humidifier