Installation & Operation Manual

3General venting

6.Priming and Cementing:

a.Handle fittings and pipes carefully to prevent contamination of surfaces.

b.Apply a liberal even coat of primer to the fitting socket.

c.Apply a liberal even coat of primer to the pipe end to approximately 1/2" beyond the socket depth.

d.Apply a second primer coat to the fitting socket.

e.While primer is still wet, apply an even coat of approved cement to the pipe equal to the depth of the fitting socket.

Table 3A Vent Pipe, and Fittings

f.While primer is still wet, apply an even coat of approved cement to the fitting socket.

g.Apply a second coat of cement to the pipe.

h.While the cement is still wet, insert the pipe into the fitting, if possible twist the pipe a 1/4 turn as you insert it. NOTE: If voids are present, sufficient cement was not applied and joint could be defective.

j.Wipe excess cement from the joint removing ring or beads as it will needlessly soften the pipe.

All vent pipe materials and fittings must comply with the following:

Item

 

Material

Standards for installation in:

 

 

 

 

 

 

United States

Canada

 

 

PVC schedule 40

ANSI/ASTM D1785

CPVC and PVC venting must be ULC-

 

 

 

 

S636 Certified. IPEX is an approved

 

 

PVC-DWV

ANSI/ASTM D2665

Vent pipe and fittings

 

manufacturer in Canada supplying vent

 

CPVC schedule 40

ANSI/ASTM F441

 

 

material listed to ULC-S636.

 

 

 

 

 

 

 

AL29-4C

UL1738

ULC-S636

Pipe cement/primer

 

PVC

ANSI/ASTM D2564

IPEX System 636

 

CPVC

ANSI/ASTM F493

Cements & Primers

 

 

 

 

NOTICE: DO NOT USE CELLULAR (FOAM) CORE PIPE

 

 

 

 

 

Approved Stainless Steel Vent Manufacturers

 

 

 

 

 

 

 

Make

 

Model

 

 

 

ProTech Systems (Simpson Dura-Vent Co.)

 

FasNSeal Vent

 

 

 

 

Z-Flex (Nova Flex Group)

 

 

Z-Vent

 

 

 

Heat Fab (Selkirk Corporation)

 

Saf-T Vent

 

 

 

 

 

PVC/CPVC air intake/vent connections

1.Combustion Air Intake Connector (FIG.’s 3-9 and 3-10) - Used to provide combustion air directly to the unit from outdoors. A fitting is provided on the unit for final connection. Combustion air piping must be supported per guidelines listed in the National Mechanical Code, Section 305, Table 305.4 or as local codes dictate.

2.Vent Connector (FIG.’s 3-9 and 3-10) - Used to provide a passageway for conveying combustion gases to the outside. Transition fittings are provided with the unit for final connection. Vent piping must be supported per the National Building Code, Section 305, Table 305.4 or as local codes dictate.

Figure 3-9Near Boiler PVC/CPVC Venting - Models 399 - 600

AIR

VENT

*

* 4” CPVC STREET ELBOW MAY BE SUBSTITUTED

4" CPVC PIPE SUPPLIED WITH

BOILER MUST BE USED FOR VENT CONNECTION

NOTE: CPVC VENT PIPE AND VENT FITTINGS MUST BE USED IN CLOSET AND ALCOVE INSTALLATIONS.

18

Figure 3-10Near Boiler PVC/CPVC Venting - Models 700 - 800

VENT

AIR

6” COUPLING

(FIELD SUPPLIED)

6” CPVC

STARTER

PIECE

(FACTORY SUPPLIED)

THE 6” STAINLESS STEEL ADAPTER SUPPLIED

WITH THE BOILER MUST BE USED FOR VENT

CONNECTION TO PVC/CPVC. THE 6” CPVC

STARTER PIECE MUST BE USED FOR PVC ONLY.

Page 18
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Lochinvar 800 operation manual PVC/CPVC air intake/vent connections, Approved Stainless Steel Vent Manufacturers, Make

800 specifications

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