Rinnai JSQ20C User Manual

About this manual

This manual covers the key features of the JSQ20C water heater, including its forced‑draft combustion system, multi‑stage heating, and low‑pressure operation. Safety precautions and the functions of each component, such as the temperature controller and water flow sensors, are described in detail.

Installation procedures, first‑use setup, normal operation, and maintenance tasks are explained with diagrams and step‑by‑step instructions. The document also includes troubleshooting tips, fault codes, and specifications such as power range, minimum water pressure, and physical dimensions. This manual is written in Chinese.

What's inside

• Features
• Parts Identification
• Temperature Controller Functions
• First Use Procedure
• Safety Precautions
• Installation
• Troubleshooting and Maintenance
• Dimensions

Specifications

Frequently asked questions

How should the JSQ20C be installed?

Follow the installation section, which describes connecting the water inlet and outlet pipes, ensuring proper water pressure, and securing the unit as shown in the manual.

What is the minimum water pressure required for operation?

The heater can operate at a water pressure as low as 0.025 MPa.

How do I use the temperature controller?

Refer to the temperature controller usage section, which explains the indicator lights and how to adjust settings for desired water temperature.