Multiple Installations - Rheem 610340 Owner's Manual And Installation Instructions

A multiple installation of Rheem storage tanks on a single manifold or multiple manifolds is possible, using
the Rheem Equa-Flow ®
principle will function with storage tanks in line, around a corner or in rows back to back
on page 25).
The cold water and hot water manifolds must be designed to balance the flow from each storage tank. To
achieve this, there are basic installation requirements and principles which must be followed:
1. The maximum number of storage tanks in a bank should be 8, however several banks of storage tanks
can be installed.
2. The hot water line from the manifold must leave from the opposite end to which the cold water line enters
the manifold.
3. The storage tanks must be of the same model.
4. The cold water line, cold and hot headers and hot water line must be sized to meet the requirements of
both AS/NZS 3500.4 and the application.
5. The primary flow and return lines must be sized to meet the requirements of AS/NZS 3500.4 and suit the
primary heating source. Refer to the literature supplied with the primary heating source.
6. A non-return valve, isolation valve and if required a pressure limiting valve and expansion control valve,
must be installed on the cold water line to the system.
7. A full flow gate valve or ball valve (not a stop tap, as used on a single storage tank installation) must be
installed on the cold water branch, primary flow /return branch and hot water branch of each storage
tank.
Non-return valves or pressure limiting valves must not be installed on the branch lines to the storage
8.
tanks.
All fittings, valves and branch lines must be matched sets all the way along the manifold.
9.
Sufficient space must be left to enable access, servicing or removal of any storage tank.
10.
11. The temperature pressure relief valve drain line from each storage tank can terminate at a common
tundish (funnel) with a visible air break at each drain discharge point (refer to the
"Relief Drain Line"
and to
Refer to the diagrams on pages

MULTIPLE INSTALLATIONS

manifold system, where large volumes of hot water is required. The Equa-Flow
on page 21).
25 to 31 for installation and plant layout details.
24
(refer to the diagrams
diagram on page 25