CONTENTS

3PART ONE - Owner's Operating Instructions

3SECTION 1 / START-UP PROCEDURES

3Before Start-Up

4Lighting Instructions & Shut-Off Procedures (Manually Lighted Pilot MV)

5Operating Instructions & Shut-Off Procedures (Automatically Lighted Pilots IID)

6After Start-Up

6SECTION 2 / CAUTION

7SECTION 3 / MAINTENANCE & CARE PROCEDURES

7Pool & Spa Water Chemistry

8Cold Weather Operation

8Winterizing The Pool And Spa Heater

9PART TWO - INSTALLATION/SERVICE INSTRUCTIONS

9SECTION 1 / RECEIVING EQUIPMENT

9SECTION 2 / GENERAL SPECIFICATIONS

9SECTION 3 / INSTALLATION INSTRUCTIONS

7Code Requirements

9 Base Installation

10 Clearances

12 Combustion Air

12 Venting Connections

14Gas Supply Connections

15Plumbing For Water Connections

17Electrical Wiring

21SECTION 4 / SERVICING INSTRUCTIONS

21General Location Of Controls

21Control Adjustments / Replacements

22Pressure Switch

22 High Limit Removal

22Flame Roll-Out Safety Switch

23Pilot Safety (MV Units)

23Pilot Safety (IID Units)

23Gas Valve Removal

23Main Burner & Orifice Removal

23Pilot Removal & Cleaning

24Heat Exchanger Removal

24Control Immersion Well Replacement

24Tube Cleaning Procedure (Typical)

25Tube Replacement Procedure

25 Desooting Procedure

25Combustion Chamber Removal

26SECTION 5 / TROUBLESHOOTING GUIDE

26Mechanical

28Electrical IID Units

30SECTION 6 / REPLACEMENT PARTS 2

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Raypak 155C installation instructions Contents, Part TWO INSTALLATION/SERVICE Instructions

155C specifications

The Raypak 155C is a versatile and efficient heater designed for both residential and commercial applications. Renowned for its robust construction and reliable performance, this unit is an excellent choice for pool and spa heating as well as for providing comfortable ambient temperatures in enclosed or outdoor spaces.

One of the standout features of the Raypak 155C is its innovative copper heat exchanger, which is designed for maximum heat transfer efficiency. This technology allows for rapid heating capabilities, ensuring that water reaches the desired temperature quickly and effectively. The heat exchanger is also resistant to corrosion, thanks to its durable design, prolonging the unit's life and maintaining performance over time.

Designed with user convenience in mind, the Raypak 155C features an intuitive digital control system. This user-friendly interface allows for easy temperature adjustments and monitoring, giving users precise control over their heating requirements. An integrated diagnostic system is also included, providing real-time feedback on the heater's performance and alerting users to any potential issues, which helps in proactive maintenance.

Incorporating advanced safety features, the Raypak 155C includes a high limit switch and a water flow switch, ensuring safe operation at all times. These safety mechanisms prevent overheating and dry firing, protecting both the heater and the connected plumbing system.

The Raypak 155C is engineered for energy efficiency, meeting and exceeding industry standards. With a compact design, it ensures easy installation and integration into existing setups, making it a favorable choice for various applications. Its quiet operation adds to user comfort, allowing it to be installed in residential settings without causing disturbances.

With a heating capacity of 155,000 BTU, the Raypak 155C is capable of effectively heating larger pools and spas, making it ideal for homes with extensive water features. The heater is designed to run on natural gas or propane, providing flexibility based on user preferences and availability.

Overall, the Raypak 155C combines state-of-the-art technology with practical features, making it one of the top choices for those looking to enhance their pool experience or improve comfort levels in their outdoor areas. Its reliability, efficiency, and user-friendly features make it a valuable investment for any property.