User Guide

31
Read instruction manual before
installing, using or servicing
water heater.
• Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
• Avoid all ignition sources if you smell gas.
• Do not expose water heater control to excessive gas
pressure.
• Use only gas shown on rating plate.
• Maintain required clearances to combustibles.
• Keep ignition sources away from faucets after extended
period of non-use.
Fire or Explosion Hazard
WARNING
Primer:
It is recommended that Tetrahydrofuran (THF) be
used to prepare the surfaces of pipe and fi ttings for
solvent welding. Do not use water, rags, gasoline
or any other substitutes for cleaning PVC or CPVC
surfaces. A chemical cleaner such as MEK may be
used.
Cement:
PVC Materials should use ASTM D-2564 Grade
Cement; CPVC Materials should use ASTM F-493
Grade Cement and ABS Materials should use ASTM
D-2235 Grade Cement. Select the proper cement;
Schedule 40 cement should be used for Schedule 40
pipe. Never use all-purpose cements, commercial
glues and adhesives or ABS cement to join PVC or
CPVC pipe and fi ttings.
.
• Primers and cements are
extremely flammable, and must
not be stored or used near heat
or open flame.
• Also, use only in a well venti-
lated area.
Fire Hazard
WARNING
Applicators:
Select a suitable pure bristle type paint brush. Use
a proper width brush or roller to apply the primer
and cement (see chart below). Speedy application
of cement is important due to its fast drying
characteristics. IMPORTANT NOTE: A dauber type
applicator should only be used on pipe sizes 2” and
below. For larger diameter pipe, a brush or roller
must be used.
RECOMMENDED BRUSH* SIZE FOR
PRIMER AND CEMENT APPLICATIONS
Nominal
Pipe (IPS)
Brush Size
3 1.5” - 2.5”
*USE ONLY NATURAL BRISTLE
Table 4
3. MAKING THE JOINT
A. Cutting
Pipe must be squarely cut to allow for the proper
interfacing of the pipe end and the fi tting socket
bottom. This can be accomplished with a miter box
saw or wheel type cutter. Wheel type cutters are not
generally recommended for larger diameters since
they tend to fl are the corner of the pipe end. If this
type of cutter is used, the fl are on the end must be
completely removed.
Note: Power saws, if used, should be specifi cally
designed to cut plastic pipe.
Figure 31
B. Deburring
Use a knife, plastic pipe deburring tool, or fi le to
remove burrs from the end of small diameter pipe.
Be sure to remove all burrs from around the inside
as well as the outside of the pipe. A slight chamfer
(bevel) of about 10°-15° should be added to the end
to permit easier insertion of the pipe into the end of
the fi tting. Failure to chamfer the edge of the pipe
may remove cement from the fi tting socket, causing
the joint to leak.
Figure 32