Burnham 81433101R16-1/10 manual Air Intake Installation Direct Vent only See Figure

e.Secure the inside trim plate to inside wall.

f.Tighten the gear clamp to the terminal pipe.

g.Seal all external joints with a weatherproof caulk.

2.Cut vent pipe to length with a hack saw.

3.Install Vent Connector/Appliance Adaptor. See Figures 11 and 12.

a.Apply a continuous bead of high temperature adhesive/sealant (supplied with boiler) around outside of corrugated pipe of vent connector.

b.Twist vent connector into end of vent pipe. Turn the connector counter-clockwise until it is engaged approximately 4 inches into the inner vent pipe and the outer collar of the connector overlaps the outside of the vent pipe.

c.Tighten the gear clamp on the outer collar of the connector.

d.Repeat steps a. through c. with the appliance adapter.

4.Connect vent pipe to boiler.

a.Apply a continuous bead of high temperature adhesive/sealant (supplied with boiler) to inside of appliance adapter (approximately ½ inch from end).

b.Slip appliance adapter over boiler flue collar and tighten gear clamp.

5.Connect vent pipe to terminal.

a.Carefully slide insulation sleeve over vent connector and vent pipe until gear clamp on small end of connector can be accessed.

WARNING

Do not operate LEDV with barometric damper in vent. Do not connect venting to chimney.

b.Apply a continuous bead of high temperature adhesive/sealant (supplied with boiler) on inside of cent connector (approximately ½ inch from end).

c.Clip connector over vent terminal until it is fully engaged. Then tighten gear clamp.

d.Slide insulation sleeve over terminal connection so that connector is completely covered.

e.Secure each end of insulation sleeve with the gear clamps provided.

6.Secure vent pipe in position with pipe straps.

a.All horizontal runs must rise at least ¼ inch per foot toward vent terminal.

b.Avoid any sags or dips in vent pipe.

C.Air Intake Installation (Direct Vent only) See Figure 13.

WARNING

Do not reduce size of air intake pipe.

Read, understand and follow combustion air instruction restrictions contained in the Pre- Installation Section of this manual.

1.General

a.Use 4 inch diameter single wall metal pipe and fittings available at most heating distributors.

Maximum allowable air intake length is 40 equivalent feet. Each elbow is equal to 6 equivalent feet.

b.Start at Burner. Work toward air intake terminal.

c.Maintain minimum of ¼ inch per foot slope in horizontal run to air intake terminal. Slope down toward air intake terminal.

d.Seal all joints gas-tight, using silicone caulk or self-adhesive aluminum tape.

2.After determining location, cut a hole in the wall to accept 4 inch air intake pipe.

3.Remove the black plastic inlet cover from the right side of the Beckett AFII burner.

4.Mount the vacuum relief valve tee assembly or 90° elbow into the burner inlet ring. See Figure 13.

a.Secure with at least three (3) sheet metal screws evenly spaced around the burner inlet ring.

b.Assemble the vacuum relief valve balance weight onto the gate. Refer to the vacuum relief valve manufacturer's instructions.

c.Mount the vacuum relief valve into the tee and fasten with a screw and nut in collar tabs. To ensure proper operation, the gate must be level across the pivot point and plumb. Refer to vacuum relief valve manufacturer's instructions.

5.Install remainder of air intake, securing each joint with at least three (3) sheet metal screws evenly spaced.

WARNING

Do not locate air intake termination where natural convention or wind conditions may cause the boiler exhaust gases to be drawn into the air intake.

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