Bradford White 120T400, Руководство по установке и эксплуатации

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VENT PIPE PREPARATION
WARNING
DO NOT attempt to start this water heater until vent pipe solvent fumes completely clear from the room and inside the
vent piping.
Vent Pipe Preparation and Joining
Most failures in vent systems result from improper preparation and joining of pipe and fittings. The guidelines below must be followed
when installing the venting system. If you have any question about the application or installation of the venting system, contact the vent
pipe manufacturer, supplier, or your plumbing professional.
1) Specific cleaners, solvents, primers and cements are available for PVC, CPVC, and ABS pipe. Be sure these materials match the
type of pipe to be installed. The vent pipe manufacturers joining instructions must be followed in all cases. Never use all-purpose
cements, commercial glues and adhesives or ABS cement to join PVC or CPVC pipe and fittings. Refer to the table at the
beginning of the “Venting” section for approved primers and cements.
a) CLEANERS, SOLVENTS, PRIMERS AND CEMENTS ARE FLAMMABLE. Do not store or use these materials near heat
or open flame, or in the vicinity of other appliances.
2) Use proper cutting, deburring and applicator tools to ensure proper preparation and joining of pipe and fittings.
a) Cutting Tools
i) A square cut must be achieved with a miter box saw or pipe cutter to ensure a proper mating with the female. If a pipe
cutter is used, the burr created at the outer edge of the pipe must be removed.
b) Deburring Tools
i) A file, knife or plastic deburring tool can be used to remove burrs. Burrs must be removed from the inside and outside
edges of the pipe to ensure a proper seal.
c) Applicator Tools
i) A natural bristle paintbrush or roller may be used to apply cement. Prompt application of the cement is important due its
fast drying properties.
3) Inspection, Cleaning, Priming and Cementing
a) Inspect the pipe inside and out for dirt, dust, moisture or grease etc. Check pipe and fittings for splits or cracks and replace if
found.
b) Clean pipe and fittings are imperative for proper joining. Following cutting and deburring, wipe away any foreign material with
a clean dry rag. If wiping fails to thoroughly clean surfaces, chemical cleaning is necessary.
c) Primer must be applied to the pipe surface and fitting socket with a natural bristle brush. This serves to soften and prepare the
pipe for cementing.
d) Cementing must be done quickly to avoid over-drying before joining.
i) Apply one coat to the outside end of the pipe at a width slightly greater than the depth of the socket.
ii) Apply a coat around the inside of the fitting socket.
iii) Apply a second coat around the end of the pipe.
4) Joining
a) Joints should be made immediately after cement is applied.
b) After fully inserting pipe into fitting socket, hold joint together for about 15 to 20 seconds.
c) Remove excess cement from around pipe and fitting with a clean rag.
d) Cement drying times may vary. Be sure to allow for the recommended drying time before disturbing joints.
For more specific and detailed information about the above, contact the vent pipe manufacturer, supplier, or competent professional.
SAFETY PRECAUTION: PRIMERS AND CEMENTS ARE EXTREMELY FLAMMABLE, AND MUST NOT BE STORED
OR USED NEAR HEAT OR OPEN FLAME. ALSO, USE ONLY IN A WELL VENTILATED AREA.
NOTICE
Use of cellular core PVC (ASTM F891), cellular core CPVC, or Radel ® (polyphenosulfone) in non-metallic
venting systems is prohibited and covering non-metallic venting with thermal insulation is prohibited.
For installations in the US only
 PVC DWV (ASTM D-2665)
 PVC Sch. 40, 80, 120 (ASTM-D1785)

CPVC Sch. 40, 80 (ASTM-F441)
 CPVC (ASTM D2846)

ABS Sch. 40 DWV (ASTM D2661)
For installations in CANADA
 ULC S636 approved PVC for flue gas venting
rated Class II, 65°C

ULC S636 approved CPVC for flue gas
venting rated Class II, 65°C
For installations in the US only
 PVC and CPVC Primer (ASTM-F656)
 PVC Cement (ASTM D-2564)

CPVC Cement (ASTM F493)
 ABS Primer and Cement (ASTM D-2235)
For installations in CANADA
 ULC S636 approved Primer and Cement for
flue gas venting rated Class II, 65°C
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