Raypak RAYTHERM 133-4001 - Manual (Page 2)

2
Rev. 33 reflects the following:
Changes to: Model Identification on page 5, Boiler Types on page 6, floor shield information on page 7, Single Boiler
Primary/Secondary Piping diagram on page 19, Multiple Boiler - Reverse Return Hook-Up diagram on page 20, Low Water
Cut-Off and High and Low Gas Pressure Switch instructions on page 23.
Additions: Expanded “Operating Controls” section on pages 21-23 to cover all modes, Manual and Auto Reset High Limit
instructions on page 23,.
Deletions: Diaphragm Tank System diagram on page 19, Multi-zone Heating Systems diagram on page 20.