User Manual
Table Of Contents
- Contents
- About Your Water Heater
- Water Heater Application
- Model Type
- Mains Pressure
- Water Heater Operation
- Reduced Hot Water Flow When Heat Exchanger Is Cold
- Gas Boosting For A Solar Water Heater
- How Hot Should The Water Be?
- Hotter Water Increases The Risk Of Scald Injury
- Safety
- Warnings
- Precautions
- General Maintenance
- Minor Maintenance Every Six Months
- Major Service Every Five Years
- Circulated Hot Water Flow And Return System
- Going On Holidays
- To Turn Off The Water Heater
- To Turn On The Water Heater
- 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?
- Temperature Control
- Temperature Control – Standard
- Temperature Control – Deluxe
- Deluxe Controller Functions
- Deluxe Controller
- Voice Prompt And Operating Tone
- Assistance Call Function
- Temperature Settings – Deluxe Controllers
- Temperature Adjustment – Deluxe Controllers
- Kitchen Controller – Deluxe
- Bathroom Controllers – Deluxe
- Bath Fill Function
- Bath Fill Function – Brief Guide
- Bath Fill Function – Explanatory Notes
- Turning Off Bath Fill Function During Its Operation
- Notes on the Bath Fill function:
- Opening a Second Hot Water Tap During Bath Fill Operation
- Early Completion of Bath Fill Operation
- Interrupting Bath Fill Operation
- Operation of the Bath Fill function whilst a Deluxe Controller has priority
- Water Supplies
- Save A Service Call
- No Display On The Controller
- Cold Water From The Hot Tap
- Water Is Too Hot Or Not Hot Enough
- Reduced Hot Water Flow When Heat Exchanger Is Cold
- No Water From The Hot Tap
- Water Flow Fluctuates
- Gas Booster Operating Too Frequently
- Fan Continues To Run After Water Heater Operation Stops
- 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
- Installation Within A Covered Area
- Pipe Cover
- Recess Installation
- Frost Protection
- Mains Water Supply
- Hot Water Delivery
- Circulated Hot Water Flow And Return System
- Reducing Heat Losses
- Water Temperature Diagrams
- Technical Data
- Dimensions – Water Heater
- Dimensions – Standard Controllers
- Dimensions – Deluxe Controllers
- Typical Installation – Outdoor Location
- Connections – Plumbing
- Connections – Electrical
- EZ LINK System Dual Installation
- Installation – Controllers
- Commissioning
- Draining The Water Heater
- Rheem Continuous Flow Gas Water Heater Warranty – Australia and New Zealand 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
COMMISSIONING
79
PRESET OUTLET TEMPERATURE SETTING
The factory preset outlet temperature setting of the water heater is:
874 series 60°C – AU, 55°C – NZ
876 series 50°C
If a temperature controller is connected to the water heater, this will override the preset outlet temperature
setting and the maximum temperature setting will be:
Maximum Outlet Temperature
874 series
876 series
Kitchen controller connected
60°C – AU, 55°C – NZ
50°C
Bathroom controller only connected
50°C
50°C
It is usually not necessary to adjust the factory preset outlet temperature setting of the water heater, unless
the customer has a particular requirement for this to be done or it is to be installed as an in-series gas booster
to a solar water heater.
Refer to “To Check or Adjust the Preset Outlet Temperature Setting” on page 79 to check or if required to
adjust the preset outlet temperature setting of the water heater.
Gas Booster for a Solar Water Heater
Note: Australian Standard AS 3498 and New Zealand Building Code Clause G12 requires that a water heater
provides the means to inhibit the growth of Legionella bacteria in potable water. When this water heater is
used as an in-series booster for a solar water heater it can satisfy these AS 3498 and Clause G12 requirements
provided it is energised, the booster preset outlet temperature setting is 70°C, and that a remote temperature
controller is not used.
It will be necessary to check and if required to adjust the preset outlet temperature setting of the continuous
flow water heater when:
it is installed as an in-series gas booster to a solar water heater
it is an existing continuous flow water heater and a solar water heater is then installed.
Notes:
Consideration must be given to the delivery temperature to any ablution and public areas such as a
bathroom, ensuite or public amenities. Refer to “Hot Water Delivery” on page 49 and to “Schematics of
Two Temperature Zones Using A Temperature Limiting Device” on page 50.
The 876 series water heater, marked “THIS APPLIANCE DELIVERS WATER NOT EXCEEDING 50°C IN
ACCORDANCE WITH AS 3498” on the front panel, must not be installed as an in-series gas booster to
a solar water heater, as water temperature greater than 50°C can be delivered from the water heater
contravening its compliance to AS 3498.
TO CHECK OR ADJUST THE PRESET OUTLET TEMPERATURE SETTING
The temperature setting will be displayed on the LED display. The preset outlet temperature settings are:
874 series 38°C, 40°C, 42°C, 43°C, 45°C*, 48°C, 50°C, 55°C, 60°C**, 65°C, 70°C, 75°C
* NZ – 45°C is a preset outlet temperature setting for New Zealand models only.
** AUS – 60°C is a preset outlet temperature setting for Australian models only.
876 series 38°C, 40°C, 42°C, 43°C, 45°C, 48°C, 50°C
It is necessary to have the electrical supply to the water heater switched on during stages of checking or
adjusting the preset outlet temperature setting procedure.