9.Air Intake Connections for Direct Vent and Sealed Combustion Appliances*:

The Air Intake Tee may be used on approved direct vent and sealed combustion appliances that have separate (non- concentric) air intake and flue exhaust collars. The male end of the tee connects to EZ Seal appliance adapters and the tee takeoff/snout connects to the appliance air intake.

Insert the male end of the Air Intake Tee into the female end of the EZ Seal vent section or appliance adapter and complete the ring and tab connection.

Insert the male end of the next SC section into the female end of the Air Intake Tee and secure as described elsewhere in this manual.

Connect the tee takeoff to the appliance combustion air inlet using appropriate hose or pipe.

*Direct Vent Appliances are constructed and installed so that all air for combustion is supplied directly from the outside atmosphere. The passage for the combustion air is allowed a small amount of leakage in the building environment. No special installation considerations are required to use Saf-T

Vent SC on Direct Vent appliances unless specified by the appliance manufacturer. Sealed Combustion appliances are similar to Direct Vent except the combustion air passage must be sealed to prevent leakage within the building envelope. When Saf-T Vent SC is used on approved Sealed Combustion appliances the joints of the outer jacket must be sealed with a foil tape (example: 3M 425), or approved silicone sealant (example: Dow Corning 732).

10.Condensate Drains:

When An Internal Condensate Drain is NOT Part of the Appliance:

A Saf-T Vent SC In-Line Drain Section is strongly recommended. Install this drain fitting as close to the appliance flue collar as possible.

A condensate drain is required for every 30 feet of horizontal vent and at/near the bottom of a vertical stack.

Use the In-Line Drain Section for a straight horizontal or vertical run. When used horizontally, rotate the fitting so that the drain tube is as vertical as possible.

A Condensate Drain Tube Kit is available to direct the condensate to an appropriate location, i.e. floor drain or vented sanitary sewer connection. A trap loop must be formed into the drain hose and must be a diameter that is at least four (4) times the appliance’s rated stack pressure in inches of water column or 3 inches, whichever is greater. Secure the loop with a cable tie.

Prior to final assembly the trap loop must be ‘primed’ by pouring a small quantity of water into the drain hose. Inspect at least annually to verify the trap is ‘primed’.

Follow all local and national codes and regulations for the draining of acidic condensate.

In cold climates do not install a condensate drain on the exterior of the building. Doing so may result in dangerous icy conditions on surfaces near the drain and may cause damage to the vent system and/or the building exterior.

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Burnham 1100-H4 manual Condensate Drains