Nortec GS - Page 80

ii Appendix-A
2583703_EN_1608 Nortec GS
Water Connections
 Water quality meet the requirements listed in Table 6 on page 18?
 Shutoff valve and union tting installed in supply line?
 Water supply piping to humidier minimum 1/2 in (13 mm) diameter? Plastic or stainless steel pipe,
if using demineralized water?
 5 μm water lter (optional, but recommended) installed in the supply line close to the humidier?
 Water supply temperature 34-77 °F (1-25 °C)?
 Water supply surge-protected and pressure regulated to 30-80 psig (207-550 kPa)?
 Check for leaks in the water supply line?
 Air gap funnel in the oor located away from the control cabinet in the humidier?
 Air gap funnel minimum 2-1/2 in (64 mm) in diameter?
 Drain pipe between air gap funnel and building drain have a minimum internal diameter of 1-1/2 in
(38 mm)? Copper or stainless steel pipe?
 Drain hose from humidier empty into the air gap funnel without touching its sides or bottom? Drain
hose have a minimum constant downslope of 1.2°, and secured with hose clamp? Drain hose rated
for 212 °F (100 °C)?
 Water supply line and drain lines ushed? Strainer in the ll valve free of debris?
 Condensate hose installed (CS/NX models only)? Hose rated for 212 °F (100 °C)?
 Condensate trap inside unit primed with water?
Combustion Air Connection – Space Air Installation
 Fresh combustion air requirements for the room/space (Table 14 on page 40 and all national and local
regulations) satised?
 Elbow installed at the intake air inlet (on Nortec GS 150-600 units)?
Combustion Air Connection – Sealed Combustion Installation
 All relevant national and local regulations for sealed combustion installation satised?
 Intake vent length does not exceed an equivalent length of 100 ft (30 m)? If unit is a Nortec GS 50
using propane gas, is it limited to 50 ft (15 m)? Maximum six bends?
 Vent diameter as listed in Table 15 on page 41, and uniform over the entire run?
 All joints and seams sealed with appropriate sealant?
 Intake vent supported?
 Spacing between air intake terminal and exhaust vent terminal minimum 3 ft (1 m)?
 Intake vent heated and insulated in cold climates?
Exhaust Vent Connection
 Exhaust vent installed to meet all national and local codes, vent manufacturer and Nortec require-
ments?
 Proper clearances maintained between exhaust vent and combustible materials?
 Exhaust vent diameter as listed in Table 16 on page 44, and uniform over the entire run?
 Exhaust vent length does not exceed an equivalent length of 100 ft (30 m)? If unit is a Nortec GS 50
using propane gas, is it limited to 50 ft (15 m)? Maximum six elbows in the exhaust vent?
 Exhaust vent diameter uniform over the entire run?
 Exhaust vent secured properly with hangers or pipe straps?