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
INSTALLATION – WATER HEATER
18
HOT WATER DELIVERY
This water heater can deliver water at temperatures which can cause scalding.
It is necessary and we recommend that a temperature limiting device be fitted between an 862 series water
heater and the hot water outlets in any ablution and public areas such as a bathroom, ensuite or public
amenities, to reduce the risk of scalding. The installing plumber may have a legal obligation to ensure the
installation of this water heater meets the delivery water temperature requirements of AS/NZS 3500.4 so that
scalding water temperatures are not delivered to a bathroom, ensuite or other ablution or public area.
The temperature limiting device used with a continuous flow gas water heater should have:
a specified „minimum temperature differential‟ between the hot water inlet and the tempered water outlet
of no greater than 10°C, and
a specified „maximum permitted pressure variation‟ in the supply between the hot water inlet and the
cold water inlet of no less than 15%.
Refer to the specifications of the temperature limiting device.
Where a temperature limiting device is installed adjacent to the water heater, the cold water line to the
temperature limiting device can be branched off the cold water line either before or after the isolation valve
and pressure limiting valve to the water heater.
If a pressure limiting valve is installed on the cold water line to the water heater and the cold water line to a
temperature limiting device branches off before this valve or from another cold water line in the premises,
then a pressure limiting valve of an equal pressure setting may be required prior to the temperature limiting
device.
Two Temperature Zones Using a Temperature Limiting Device
Gas Booster for a Solar Water Heater
The temperature limiting device used with an 862 series in-series gas booster as part of a solar water heater
installation must have the additional capability of receiving a hot water supply temperature of up to 99°C if
the solar water heater does not have an over temperature protection system to limit the water to no greater
than 90°C, such as the Rheem Premier Hiline thermosiphon closed circuit system.
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 is installed because water at a temperature much
higher than the controller setting can be delivered. If a solar water heater has been installed to an existing
water heater installation, then all controllers must be disconnected and removed.
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