SolarAttic PCS1, User Manual

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SECTION 3 - INSTALLATION Page S3-7
STEP ONE:
RETROFIT SUPPORT SYSTEM
Retrofitting the support system is the most difficult part of installing the
PCS1. The reason for this is the generally rigid and permanent nature of the typical
pvc type support systemÕs plumbing. This usually means having to carve up the
pvc pipe and not being able to salvage and reuse the fittings and in some cases the
valves also. The good part about pvc type support systems is that pvc pipe, fittings
and general purpose valves are relatively cheap and can be purchased in many
hardware, plumbing and building stores. If you have a pvc support system that
needs to be retrofitted, plan on redoing the entire plumbing layout.
CAUTION : If you are in an area that freezes, it is common to find a gate
valve on all lines going to the swimming pool. These are the poolÕs main drain
line, the poolÕs return line and the poolÕs skimmer line. In some instances, there
may be more than just these three lines [such as two skimmer lines, etc.]. Do not
remove these valves -- they will be needed to winterize your swimming pool. In
some cases, they may have to be removed and later reinstalled.
Plan on connecting the new valves and PCS1 to the valves and pipes leading
to the swimming pool. When it comes to the filter and pump, simply rearrange
these as you reconstruct the support systemÕs plumbing.
In the case where copper pipes and brass valves have been used, they can be
reused. If copper or brass has been used, you will need to mate these to pvc pipe
which is generally done using a metal to rubber ÒmissionÓ coupling that adapts
directly to the outside dimensions of both pipes involved. Example: 1 1/2 inch
copper pipe has a different O.D. [outside diameter] than 1 1/2 inch PVC pipe. The
appropriate union to couple these pipes will have a rubber insert that matches their
different sizes.