Rinnai E75CP 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 E75CP Specifications

General

Category	Boiler
Heating Capacity	75, 000 BTU
Efficiency	95% AFUE
Water Connections	3/4" NPT
Vent Type	Direct Vent
Modulation Ratio	5:1
Fuel Type	Natural Gas
Venting	PVC, CPVC
Warranty	5-year limited on parts

Summary

Safety and General Instructions

Designated Use

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

Hazard Definitions

Explains DANGER, WARNING, CAUTION, and NOTICE symbols used in the manual.

Safety and Operating Procedures

Critical Pre-Operation Warnings

Emphasizes vital safety steps before operation, including gas leak response.

Operating Instructions

Step-by-step guide for safe boiler operation.

Turning Off Gas Supply

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

Boiler Description and Components

Boiler Overview

Introduces the Rinnai Q boiler, its features, and integrated control system.

Control Panel and Functions

Explains the function buttons and display elements of the boiler control.

Boiler Display and Indicators

Understanding Boiler Displays

Details the "Good" and "Technical" readouts and operation indications.

System Pressure Management

Water Pressure Guidelines

Explains optimal, low, and high water pressure levels and their display indications.

Heating System Maintenance

Refilling the System

Step-by-step guide for refilling the central heating installation with potable water.

Boiler Shutdown and Holiday Operation

Holiday Period Settings

How to set the boiler for a holiday period using the thermostat.

Resetting the Heating System

Procedures for switching off and resetting the central heating system.

Troubleshooting and Warranty

Error Codes and Resetting

Explains fault displays (E, BL codes) and how to attempt a reset.

Maintenance Procedures

Details cleaning the condensate trap and general casing care.

Warranty Information

Mentions warranty conditions found on the supplied card.

Installer and Distributor Information

Installer Contact Details

Section to record installer's name, address, and contact information.