Raypak B0507 Owner's Manual And Installation Instructions page 22

CONNECTIONS – PLUMBING
Mechanical, Hydronic and Process Heating Applications
For these applications, storage tanks are normally not required. Connect the water heaters and pumps in
accordance with the principles shown in the diagram below with the following in mind:

Install the water heaters according to

A disconnection union must always be provided at the cold water inlet and hot water outlet on the water heater
to allow for disconnection of the water heater.

Each high point of the system should be fitted with an air bleed valve or automatic air eliminator.

On radiator or heating systems where thermostatic or zone valves will vary the water flow through the load, a
by-pass with a suitable control valve must be installed to control the system water flow rate. BYPASS
VALVES must be installed at the end of the system furthest from the water heater.
"Equa-flow®
Typical Installation – Raypak Mechanical Heating System
principles" detailed on page 20.
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