Rinnai E75CN User Manual

8W.52.4000/11.09 Changes reserved
User information manual
Pictured: Q85SN, Q130SN
Q85SP, Q130SP
Notice! This manual must be retained for future reference.
- Donotstoreorusegasolineorotherammable
vapors and liquids in the vicinity of this or any other
appliance.
- WHAT TO DO IF YOU SMELL GAS
- Do NOT try to light any appliance.
- Do NOT touch any electrical switch.
- Do NOT use any phone in your building.
- Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
- Ifyoucannotreachyourgassupplier,callthere
department.
WARNING!
Ifyoudonotfollowtheseinstructionsexactly,areor
explosion may result causing property damage, personal
injury or loss of life.
Highefciencycondensinggasboiler
Q85SN/Q130SN/Q175SN/Q205SN/Q175CN
Q85SP/Q130SP/Q175SP/Q205SP/Q175CP
Address: 103 International Drive, Peachtree City, GA, 30269
Toll-free: 1-800-621-9419 • Fax: 678-829-1666 • www.rinnai.us
WARNING!
Installation and service must be
performedbyaqualiedinstaller,
service agency or the gas supplier.
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Rinnai E75CN Specifications

General

Brand	Rinnai
Model	E75CN
Category	Boiler
Language	English

Summary

Safety and General Instructions

Designated Use

Defines the boiler's intended purpose for central heating and domestic hot water.

Hazard Definitions

Explains safety symbols and terms like DANGER, WARNING, CAUTION, and NOTICE.

Safety and Operation

Pre-Operation Safety Checks

Critical safety warnings and instructions to follow before operating the boiler.

Operating Instructions

Step-by-step guide on how to start and operate the Rinnai Q-Series boiler.

Emergency Gas Shut-off

Procedure for safely shutting off the gas supply to the appliance.

Corrosion Prevention and Water Pressure

Corrosion Prevention

Guidance on avoiding substances and environments that can cause boiler corrosion.

Water Pressure Checks

Instructions on monitoring and maintaining the central heating system's water pressure.

Boiler Description and Controls

Boiler Overview

Details the Rinnai Q boiler's features as a condensing, modulating heating unit.

Control System and Thermostats

Explains the integrated control system, outdoor sensor, and RS100 thermostat integration.

Function Button Explanations

Control Panel Buttons

Detailed explanation of the function and purpose of each button on the boiler control panel.

Important Warnings

Repair and Adjustment Warning

Warns against attempting repairs or panel removal, advising to contact qualified service personnel.

Boiler Display Information

Display Modes

Explains the 'Good' and 'Technical' display modes and how to switch between them.

Operation Indication Codes

Lists and explains codes indicating the boiler's operational status.

Water Pressure Management

Interpreting Pressure Messages

Explains display messages like FILL and HIGH related to water pressure issues.

Checking Water Pressure

Instructions on how to retrieve and check the water pressure reading on the display.

Replenishing the Central Heating System

Filling Procedure

Detailed step-by-step guide for filling and topping up the central heating installation.

Boiler Shutdown and Holiday Mode

Automatic De-aeration

Explains the automatic de-aeration program that runs after replenishment.

Holiday Period Operation

Instructions for setting the boiler to holiday mode using the thermostat.

Troubleshooting and Maintenance

Error and Blocking Codes

Explains fault codes and how to reset the boiler.

Condensate Trap Cleaning

Guide on cleaning the condensate collection and disposal system.

Maintenance and Warranty

Qualified Technician Requirement

States that appliance maintenance and changes must be done by a qualified technician.

Warranty Conditions

Informs where to find warranty conditions, typically on a supplied card.