Rheem RS80-42BP - Manual (Page 16)

16
Installing the water heater.
Typical Installation
Choose the installation type from the
following;
1. As a replacement for an existing
water heater (Preferred).
2. As the stand alone source of hot
water for new construction or
locations without a previous water
heater.
3. As a pre-heater to an existing water
heater.
NOTICE: Using the system as a pre
heater to an electric water heater is
less efficient than a stand alone
system. (Not Recommended). Do not
perform this installation unless
specifically requested by the customer.
All plumbing installation must conform
to local codes.
All piping must be adequately
supported; supports must conform to
local codes.
All piping must be sloped to a drain.
Plumbing must be installed so that the
performance of any fire rated assembly
is not reduced.
WARNING: Heat
trace will not protect
against pipe freezing in
the event of power loss.
!
NOTICE: The closed
loop piping between the
storage tank and solar
collectors does not
require insulation and is
rated up to 30°F.
Type of Installation
WARNING:
Burns from
Collector Fluid or
Downpipe and Hot
Pipe - Cover the
solar collectors with
an opaque (no light
can penetrate)
material and allow
plumbing and fluid
to cool before
attempting any
maintenance.
!
A new combination temperature and pressure relief valve, complying with the Standard for Relief Valves
and Automatic Gas Shut-Off Devices for Hot Water Supply Systems, ANSI Z21.22, is supplied and must
be installed in the opening provided and marked for the purpose on the water heater. No valve of any
type should be installed between the relief valve and the tank. Local codes shall govern the installation of
relief valves.
Storage Tank
Collectors
Jacket Relief Valve
T&P Valve
Tempering
Valve
Cold Water
Expansion
Valve
Collector Down Pipe
Collector
Hot Pipe
Tee
Adapter