Blower Exhaust Direction; Vent Pipe Preparation - Lochinvar POWER VENTED GAS HEATERS Installation And Operating Manual

CONFIGURATION
FOR HI-INPUT
HEATER
CONNECTED TO
4" VENTING.
3" RUBBER
COUPLING
(SUPPLIED)
BLOWER
Figure 42

BLOWER EXHAUST DIRECTION

The blower assembly may be rotated 90 degree clockwise
or counterclockwise to allow horizontal venting in areas
having restricted space above the water heater. To rotate
the blower outlet, remove the four nuts (with 11/32" nut
driver) (see Figure 43), securing the fl ue collector to the
blower housing. Pull the blower assembly forward to free
it from the mounting studs. Rotate the blower housing
clockwise or counter-clockwise and align the four holes
and screws together. Reattach the blower housing to the
fl ue collector.
Note: Coupling to vent system
not shown for clarity.
Figure 43

VENT PIPE PREPARATION

1. INITIAL PREPARATION
• Make sure the solvent cement you are planning to
use is designed for the specifi c application you are
attempting.
•
Know the physical and chemical characteristics and
limitations of the PVC and CPVC piping materials
that you are about to use.
•
Know the reputation of your manufacturer and their
products.
4" VENT
PIPE
3"-4"
ADAPTER
(FIELD
SUPPLIED)
3" VENT PIPE,
75mm (3 in.)
MAX LENGTH
11/32" nut
www.lochinvar.com
•
Know your own qualifications or those of your
contractor. The solvent welding technique of joining
PVC and CPVC pipe is a specialized skill just as any
other pipe fi tting technique.
•
Closely supervise the installation and inspect the
fi nished job before start-up.
•
Contact the manufacturer, supplier, or competent
consulting agency if you have any questions about
the application or installation of PVC and CPVC
pipe.
•
Take the time and effort to do a professional job.
Shortcuts will only cause you problems and delays
in start-up. By far, the majority of failures in PVC and
CPVC systems are the result of shortcuts and/or
improper joining techniques.
2. SELECTION OF MATERIALS (PCV and CPVC
VENTING)
•
Cutting Device - Saw or Pipe Cutter
•
Deburring Tool, Knife, File, or Beveling Machine (2"
and above)
•
Brush - Pure Bristle
•
Rag - Cotton (Not Synthetic)
•
Primer and Cleaner
•
Solvent Cement - PVC for PVC Components and
CPVC for CPVC Components only
•
Containers - Metal or Glass to hold Primer and
Cement. Select the type of PVC or CPVC materials
to be used on the basis of their application with
respect to chemical resistance, pressure rating,
temperature characteristics, etc.
•
Insertion Tool - Helpful for larger diameter pipe and
fi ttings 6" (152mm) and above.
WARNING
Fire or Explosion Hazard
• 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.
Read instruction manual before
installing, using or servicing
water heater.
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.
35