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Dux Readyhot 11.007 V2 - 28/9/11
VALVES (Fig. 3)
•
Approved isolation and non return valves must be fitted to the cold water inlet.
•
A combination isolating and non return valve may be used. Approved pressure limiting and expansion control
valves must also be fitted. A combination pressure limiting and expansion control valve may be used. The
pressure limiting valve must be rated at 500 kPa.
•
The Expansion Control valve must be rated at 700 kPa.
OTHER RATING COMBINATIONS ARE NOT
SUITABLE!
•
Valves must not be connected directly to the Readyhot module or Dux Endurance water heater.
•
It may be necessary to fit a temperature limiting device for delivery to areas used primarily for the purposes of
personal hygiene. Refer to the ‘Heated Water Delivery Temperature’ section of this document.
PIPEWORK (Fig. 3)
•
All hot water pipework should be insulated to optimise performance and minimise energy wastage. This may
also be required by local regulations.
•
The flow section of the pipework should be 20mm (¾") type B copper or equivalent. The return section of the
pipework should be 20mm (¾") type B copper or equivalent. Total combined length of the flow and return pipe
should not exceed 60 meters.
•
The branch lines from the flow and return pipework to the hot water outlets should be sized in accordance with
AS/NZS 3500.
MOUNTING THE READYHOT MODULE (Fig. 3)
The Readyhot module is usually located below the Dux Endurance water heater. However, it can be mounted
anywhere within a 1.5 metre distance from the water heater. These instructions assume it is located below the
water heater.
1. Draw a line vertically down from the cold water inlet connection of the Dux Endurance water heater.
2. Mount the Readyhot module so the top edge of the enclosure is approximately 300 mm below the Dux
Endurance water heater with the water outlet connection of the Readyhot module in line with the water inlet
connection of the Dux Endurance water heater as shown in (Fig. 3).
3. Fasten the Readyhot module to the wall or supporting structure. The top bracket has a keyhole slot so that the
Readyhot module can be positioned by hanging it on one screw, then the other screws can be secured.
4. Connect a piece of 20mm (¾") type B copper or equivalent between the outlet of the Readyhot module and
the cold water inlet of the Dux Endurance water heater.
5. Connect the isolating, non return, pressure limiting and expansion control valves and an adequately sized cold
water supply pipe to the cold water inlet of the Readyhot module.
6. Plan the route of the 'flow and return' pipework to ensure the shortest distance between the pipework and the
hot water outlets.
7. Connect the 'flow and return' pipework between the hot water outlet of the Dux Endurance water heater and
the heating loop return connection on the Readyhot module. Insulate pipework. The 'return' section of the
pipework should be connected after the branch line furthest away from the water heater.
8. Install branch lines from the pipework to hot water outlets.
COMMUNICATION CABLE
•
Electronic signals are communicated between the Readyhot module and the Dux Endurance water heater via
the communications cable already connected to the Readyhot module.
•
The communications cable is connected to the remote control connection terminals on the Dux Endurance
water heater in the same way as cables from the remote controller(s). Refer to the ‘WATER CONTROLLERS’
section of the ‘Operation / Installation Manual’ supplied with the Dux Endurance water heater for details.
Do not remove the front cover of the Readyhot or the water heater unless the power supply is
isolated. It is not necessary to remove the front cover of either appliances for the purposes of
mounting the Readyhot module.
Install temperature limiting device in accordance with the ‘Heated Water Delivery Temperature’
section of this document.
WARNING
WARNING
