Multiple Installations - Rheem 613050 Owner's Manual And Installation Instructions

Electric heavy duty water heater

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Service instructions manual (27 pages)

Table Of Contents

Table of Contents

A multiple installation of Rheem water heaters on a single manifold or multiple manifolds is possible, using

the Rheem Equa-Flow

principle will function with water heaters in line, around a corner or in rows back to back

diagrams on page

25).

The cold water and hot water manifolds must be designed to balance the flow from each water heater. To

achieve this, there are basic installation requirements and principles which must be followed:

The maximum number of water heaters in a bank should be 8, however several banks of water heaters

can be installed.

The hot water line from the manifold must leave from the opposite end to which the cold water line

enters the manifold.

The water heaters must be of the same model.

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.

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.

A full flow gate valve or ball valve (not a stop tap, as used on a single water heater installation) must be

installed on both the cold water branch and hot water branch of each water heater.

Non-return valves or pressure limiting valves must not be installed on the branch lines to the water

heaters.

All fittings, valves and branch lines must be matched sets all the way along the manifold.

Sufficient space must be left to enable access, servicing or removal of any water heater.

10. The temperature pressure relief valve drain line from each water heater 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