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Rheem 627 series User Manual

Rheem 627 series
100 pages
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This water heater must be installed and serviced by a qualified person.
Please leave this guide with the householder.
Owner’s Guide
and
Installation Instructions
Continuous Flow
Gas Indoor Water Heater
864, 866 series
627 models
INSTALLER:
The ONLY suitable flue parts are certified Rheem coaxial flue components
carrying the following label:
DO NOT use any other type of flue parts.
Carefully follow the Installation Instructions.
OPERATOR:
DO NOT OPERATE THIS WATER HEATER:
Unless a certified Rheem coaxial flue system, venting to the outside through a certified Rheem
terminal, is installed in accordance with the Installation Instructions.
If a loud continued vibration occurs during operation
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Rheem 627 series Specifications

General IconGeneral
CategoryWater Heater
BrandRheem
Fuel TypeElectric
TypeTank
Energy Factor0.95
Voltage240V
Series627 Series
Capacity50 gallons

Summary

About Your Water Heater

General Operation and Safety

Covers water heater application, model types, operational principles, gas boosting, and essential safety information.

System Types and Maintenance

Details on circulated systems, safety precautions, general maintenance, condensate traps, and scheduled servicing.

Operational Procedures and Protection

Instructions for turning the water heater on/off, holiday operation, frost protection, and draining procedures.

Installation Check and Water Quality

Guidance on verifying correct installation, regional specifics, water chemistry effects, and expected lifespan.

Temperature Control

Controller Overview and Types

Introduces Rheem controllers, detailing standard and deluxe models and their compatibility.

Standard Controller Functions

Controller Interface and Operation

Explains the functions of standard controller buttons, lights, and display panel elements.

Controller Settings and Adjustments

Details temperature settings for different controller types and the procedure for adjusting them.

Kitchen and Bathroom Controller Use

Provides specific operating instructions for standard kitchen and bathroom controllers.

Water Volume Function

Explains the water volume function for standard controllers, including setting and alarm operation.

Deluxe Controller Functions

Deluxe Controller Overview and Features

Details deluxe controller functions, interface elements, and special features like assistance calls.

Voice Prompts, Volume, and Assistance

Covers voice prompts, operating tones, volume adjustment, and the assistance call function.

Deluxe Controller Settings and Adjustment

Explains temperature settings and the procedure for adjusting them on deluxe controllers.

Deluxe Kitchen and Bathroom Operation

Provides specific operating instructions for deluxe kitchen and bathroom controllers.

Bath Fill Mode Operations

Comprehensive guide to setting up and operating the Bath Fill mode on deluxe controllers.

Water Supplies

Water Supply Requirements and Saturation Index

Details requirements for water supply, including effects of water chemistry and saturation index.

Save a Service Call

Troubleshooting Controller and Water Flow

Guides users through common issues like no display, cold water, and fluctuating flow rates.

Troubleshooting Flue, Booster, and Gas Issues

Addresses frequent gas booster operation, fan issues, flue smells, and vapour from the flue terminal.

Troubleshooting Pressure, Errors, and Bills

Covers pressure relief valve discharge, error codes, and causes of higher than expected gas bills.

Installation - Water Heater

Installation Standards and Location

Defines installation standards, application suitability, and recommended water heater location.

Installation Details: Ventilation, Flue, and Tray

Covers requirements for ventilation, secondary flue, safe tray, and pipe covers.

Frost Protection and Mains Water Supply

Details frost protection systems and requirements for the mains water supply pressure.

Hot Water Delivery and Solar Booster Integration

Discusses hot water delivery temperatures, scald risks, and integration with solar water heaters.

Circulated Systems and Temperature Limiting

Explains circulated hot water systems and the use of temperature limiting devices.

Water Temperature Diagrams and Dimensions

Provides diagrams illustrating temperature zones and technical data including dimensions.

Installation - Controllers

Controller Dimensions

Provides dimensional specifications for standard and deluxe controllers.

Controller Installation and Wiring

Details controller types, compatibility, installation locations, wiring, and connection procedures.

Connections – Plumbing

Connection Sizes and Water/Gas Lines

Specifies connection sizes for plumbing, water inlet/outlet, and gas inlet details.

Pipe Sizing and Gas Inlet Details

Covers pipe sizing recommendations, in-series booster connections, and gas inlet procedures.

Flueing

Secondary Flue and Components

Details requirements for secondary flue installation and lists available flue system components.

Flue Terminal and Length Requirements

Specifies flue terminal location clearances and maximum flue run lengths.

Condensate Management

Explains flue condensate formation, draining, and the installation of condensate traps.

Horizontal and Vertical Flue Installation

Provides detailed instructions for installing horizontal and vertical flue runs.

Multiple Heater Flue and Condensate Installation

Covers flue terminal clearances and condensate drain line installation for multiple water heaters.

Connections - Electrical

Electrical Work and Power Consumption

Outlines electrical work requirements, wiring rules, and the water heater's power consumption.

EZ-Link System Dual Installation

System Overview, Requirements, and Labels

Describes the EZ-Link system, its requirements, notes on dual installation, and label placement.

Ez-Link Cable Connection and Setup

Provides step-by-step instructions for connecting the EZ-Link cable between water heaters.

Installation - Controllers

Controller Types and Specifications

Details standard and deluxe controller types, their specifications, and installation location guidelines.

Controller Installation and Wiring

Covers the wiring installation process for kitchen and bathroom controllers, including exposed wiring.

Commissioning

Initial Setup and Gas Pressure Checks

Guides through turning on the water heater and checking gas inlet and test point pressures.

Burner Pressure and Error Code Management

Details checking and adjusting burner gas pressure and managing error codes.

Preset Temperature Settings and Adjustments

Explains preset outlet temperatures, solar booster integration, and temperature adjustment procedures.

866 Series Temperature Compensation

Specific instructions for outlet temperature compensation adjustment on the 866 series model.

Final Shutdown and Draining Procedures

Instructions for turning off the water heater and draining it for protection or storage.

Rheem Warranty

Warranty Terms and Exclusions

Details the general terms of the Rheem warranty and specific exclusions.

Warranty Coverage and Claim Process

Outlines what components are covered, warranty periods, and how to make a claim.

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