Specifications
Table Of Contents
- Contents
 - About Your Water Heater
- Water Heater Application
 - Model Type
 - Water Heater Operation
 - Gas Boosting For A Solar Water Heater
 - Mains Pressure
 - How Hot Should The Water Be?
 - Hotter Water Increases The Risk Of Scald Injury
 - Warning
 - Safety
 - Precautions
 - General Maintenance
 - Minor Six Month Maintenance
 - Annual Service
 - To Turn Off The Water Heater
 - To Turn On The Water Heater
 - Going On Holidays
 - Frost Protection
 - Draining The Water Heater
 - How Do I Know If The Water Heater Is Installed Correctly?
 - Victorian Customers
 - Does The Water Chemistry Affect The Water Heater?
 - How Long Will The Water Heater Last?
 
 - Water Supplies
 - Save A Service Call
- No Display On The Controller (If Fitted)
 - Cold Water From The Hot Tap
 - Water Is Too Hot Or Not Hot Enough
 - No Water From The Hot Tap
 - Water Flow Fluctuates
 - Gas Booster Operating Too Frequently
 - Fan Continues To Run After Water Heater Operation Stops
 - Smell Of Flue Gases
 - Clouds Of White ‘Vapour’ From The Flue Terminal
 - Pressure Relief Valve Discharging
 - Error Code
 - Higher Than Expected Gas Bills
 
 - Installation – Water Heater
- Installation Standards
 - Water Heater Application
 - Water Heater Location
 - Ventilation
 - Secondary Flue
 - Safe Tray
 - Pipe Cover
 - Frost Protection
 - Mains Water Supply
 - Preset Outlet Temperature Setting
 - Hot Water Delivery
 - Circulated Hot Water Flow And Return System
 - Reducing Heat Losses
 - Dimensions And Technical Data
 - Typical Installation – Indoor Location
 
 - Connections – Plumbing
 - Flueing
 - Connections – Electrical
 - Multiple Installations
 - Commissioning
 - Draining The Water Heater
 - Rheem Continuous Flow Gas Water Heater Warranty – Australia Only
 - 1. The Rheem Warranty – General
 - 2. Terms Of The Rheem Warranty And Exclusions To It
 - 3. What Is Covered By The Rheem Warranty For The Water Heaters Detailed In This Document
 - 4. Entitlement To Make A Claim Under This Warranty
 - 5. How To Make A Claim Under This Warranty
 - 6. The Australian Consumer Law
 

ABOUT YOUR WATER HEATER 
10 
HOW DO I KNOW IF THE WATER HEATER IS INSTALLED CORRECTLY? 
Installation requirements are shown on pages 15 to 23. The water heater must be installed: 
  by a qualified person, and 
  in accordance with the installation instructions, and 
  in compliance  with  Standards  AS/NZS 3500.4,  AS 5601  or  AS/NZS 5601.1,  as  applicable  under  local 
regulations, and all local codes and regulatory authority requirements. 
 Warning: Temperature controllers must not be fitted to this water heater (862 series) if it is installed as 
an in-series gas booster with a solar water heater system or if a Water Star water heater is installed because 
water at a temperature  much  higher  than the controller setting can be  delivered. If a solar  or Water  Star 
water  heater  has  been  installed  to  an  existing  water  heater  installation,  then  all  controllers  must be 
disconnected and removed. 
The  pipe  work  between  the  solar  storage  tank  (if  one  is  installed)  and  the  in-series  gas  booster  has  a 
minimum recommended pipe size of DN20, MUST BE of copper and be fully insulated in accordance with 
the requirements of AS/NZS 3500.4. The insulation must be weatherproof and UV resistant if exposed. The 
insulation must be fitted up to the connections on both the solar storage tank and the in-series gas booster. 
VICTORIAN CUSTOMERS 
Notice to Victorian Customers from the Victorian Plumbing Industry Commission. This water heater must be 
installed by a licensed person as required by the Victorian Building Act 1993. 
Only a licensed person will give you a Compliance Certificate, showing that the work complies with all the 
relevant  Standards.  Only  a  licensed  person  will  have  insurance  protecting  their  workmanship  for  6 years. 
Make sure you use a licensed person to install this water heater and ask for your Compliance Certificate. 
DOES THE WATER CHEMISTRY AFFECT THE WATER HEATER? 
The  water  heater  is  suitable  for  most  public  water  supplies,  however  some  water  chemistries  may  have 
detrimental effects on the water heater, its components and fittings. Refer to “Water Supplies” on page 11. 
If you are in a known harsh water area or you are not sure of your water chemistry, have your water checked 
against the conditions described on page 11. 
HOW LONG WILL THE WATER HEATER LAST? 
The  water  heater  is  supported  by  a  manufacturer‟s  warranty  (refer  to  page 55).  There  are  a  number  of 
factors that will affect the length of service the water heater will provide. These include but are not limited to 
the  water  chemistry,  the  water  pressure, the  water temperature  (inlet  and  outlet) and  the water  usage 
pattern. Refer to “Precautions” on page 7. 










