TABLE OF CONTENTS

 

I) INTRODUCTION

. . 4

VII) COMBO HEATING

. 21

User Responsibilities

4

System Requirements

21

II) SAFETY

. . 4

VIII) TROUBLESHOOTING GUIDE

. 22

For Installations in Canada

4

IX) REPAIR PARTS ILLUSTRATION

. 24

For Installations in the United States

4

LIMITED WARRANTY

. 25

Safety Warning (Flammable Vapours)

5

 

 

Safety Warning (Scalding)

5

 

 

Safety Warning (Carbon Monoxide)

5

 

 

Relief Valves (T&P)

5

 

 

Backflow Prevention

5

 

 

III) INSTALLATION

. . 6

 

 

Unpacking the Water Heater

6

 

 

Location Requirements

6

 

 

In Earthquake Zones

 

 

 

Clearances and Accessibility

6

 

 

Gas Supply

7

 

 

Gas Pressure

 

 

 

Gas line purging

 

 

 

Gas Leak Testing

 

 

 

Air Requirements

9

 

 

Confined Space Air Requirements for Canadian

 

 

 

Installations

9

 

 

Confined Space Air Requirements for U.S.

 

 

 

Installations

10

 

 

Exhaust Venting

11

 

 

Vent Pipe System

 

 

 

Drafthood Installation

 

 

 

Water Supply

11

 

 

Piping Installation

 

 

 

Closed System/Thermal Expansion

 

 

 

Temperature and Pressure (T&P) Relief Valve

12

 

 

The Temperature And Pressure Relief Valve:

 

 

 

The Discharge Line:

 

 

 

Installations Check

13

 

 

IV) OPERATING INSTRUCTIONS

. 14

 

 

Water Temperature Regulation

14

 

 

Temperature Adjustment

 

 

 

Lighting Instructions (Robertshaw 110R)

15

 

 

Lighting Instructions (Robertshaw 220R)

16

 

 

Lighting Instructions (White-Rodgers 37C)

17

 

 

V) OPERATION

. 18

 

 

Burner Flames

18

 

 

Emergency Shut Down

18

 

 

Checking the Draft

18

 

 

Operating Conditions

18

 

 

Condensation

 

 

 

Water Heater Sounds

 

 

 

Safety Shut-off

 

 

 

Anode/Water Odour

 

 

 

VI) MAINTENANCE

. 19

 

 

Draining and Flushing

19

 

 

Periodic Inspection

19

 

 

External Cleaning of the Flame-arrester

20

 

 

Resetting and Replacing the Safety (TCO) Switch20

 

 

Temperature and Pressure Relief Valve

20

 

 

RETAIN THESE INSTRUCTIONS IN A SAFE LOCATION FOR FUTURE REFERENCE

– 3 –

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GSW 72090 manual Viii Troubleshooting Guide, IX Repair Parts Illustration, Limited Warranty

72090 specifications

The GSW 72090 is a remarkable addition to the world of modern heating solutions, designed to provide efficient and effective space heating. It epitomizes advanced technology, reliability, and user-centric design, making it an ideal choice for homes and commercial spaces alike.

One of the main features of the GSW 72090 is its impressive heating capacity. Engineered to deliver optimal warmth, it can efficiently heat larger areas, ensuring that spaces remain comfortable even during the coldest months. The unit’s high-grade alloy construction enhances durability and helps maintain consistent performance over time.

A vital technology integrated into the GSW 72090 is its modulating control system. This system intelligently adjusts the temperature output based on the current heating demand, optimizing energy usage and contributing to lower utility bills. This efficiency not only benefits the consumer but also has a positive impact on the environment by reducing greenhouse gas emissions.

The GSW 72090 also boasts a sleek and modern aesthetic, making it an attractive addition to any space. Its design allows for easy installation and maintenance, ensuring that users can focus on comfort without worrying about the complexities of upkeep. The unit operates quietly, providing a peaceful environment without the disruptive noises often associated with traditional heating systems.

Incorporating safety features is another key characteristic of the GSW 72090. It includes overheat protection, which automatically turns the unit off if it detects excessive temperatures, ensuring a safe environment for occupants. Additionally, the product is constructed with materials that are resistant to corrosion and wear, enhancing longevity.

As an environmentally conscious option, the GSW 72090 is designed to comply with stringent energy efficiency regulations. Its performance not only meets but often exceeds the required standards, making it a smart choice for those looking to reduce their carbon footprint.

Overall, the GSW 72090 stands out due to its combination of advanced technologies, user-friendly features, aesthetic appeal, and commitment to safety and efficiency. Its multi-faceted capabilities make it a prime option for anyone seeking reliable and effective heating solutions in their home or business.