NTI VM110P - Gasket Identification and Pipe Insertion Depth; Proper Exhaust Vent Connection; Stainless Steel Piping

General Venting │ Vmax I&O Manual
12
Stainless Steel Piping – The Vmax universal appliance adapter is designed to connect directly to DuraVent –
FasNSeal AL29-4C Stainless Steel Special Gas Vent. Ensure the lower gasket of the universal appliance
adapter is in place and properly positioned prior to installation. Ensure the venting system does not apply a
load or strain on the boiler flue outlet adapter; recommend using two elbows to create a “swing joint” to
reduce potential strain on vent piping and cemented joints. See Figure 4-3(d).
Exhaust venting must be supported to reduce strain on piping joints. Failure to follow
these instructions may result in result in damage, serious injury or death.
In Canada, the first 3 ft (915 mm) of vent piping must be readily accessible for inspection.
Figure 4-2 (a) Universial Exhaust-vent & Air-inlet Appliance Adapter
Gasket Identification and Pipe Insertion Depth
Figure 4-2 (b) Universial Exhaust-vent & Air-inlet Appliance Adapter
Proper Exhaust Vent Connection
Lower Gasket – 3” OD Seal
use with Stainless Steel
Middle Gasket – 3.14” OD Seal
use with Polypropylene
Upper Gasket – 3.5” OD Seal
use with CPVC (PVC for Air-inlet)
2.36” (CPVC/PVC)
3.46” (PP)
4.17” (SS)
CPVC/PP/SS Exhaust Pipe
With 1/8” bevel to prevent
damage to gasket. When venting
with PVC, use 5” long CPVC
Transition Pipe (factory supplied)
Exhaust-Vent
Air-Inlet
Tighten Gear Clamp after
fulling inserting piping