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Dux Ecosmart 250DP0, Owner'S Manual

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Dux Ecosmart 250DP0 Owner'S Manual Download Page 1

Electric Boosted Models:

Gas Boosted Models:

Specifications and materials may change without notice.
Effective for the above models of Dux Solar Water Heaters manufactured and sold after 1st November 2018.

Owner’s Manual

250DPM36 | 315DPM36 | 400DPM36

250DP0 | 315DP0 | 400DP0

H3165    029664    Rev. B

For advice, repairs and service, call:
1300 365 115 (Australia) 
0800 729 389 (New Zealand)

Carefully remove all packaging and 
transit protection from the water heater 
before installation. Dispose of the 
packaging responsibly using re-cycling 
facilities where they exist.

Installation Details
Owner’s Information 
Warranty

Solar Water Heaters With Electric Or Gas Boosting

Summary of Contents for Ecosmart 250DP0

Page 1: ...M36 315DPM36 400DPM36 250DP0 315DP0 400DP0 H3165 029664 Rev B For advice repairs and service call 1300 365 115 Australia 0800 729 389 New Zealand Carefully remove all packaging and transit protection from the water heater before installation Dispose of the packaging responsibly using re cycling facilities where they exist Installation Details Owner s Information Warranty Solar Water Heaters With E...

Page 2: ...should be supervised to ensure they do not interfere with the water heater DO NOT store chemicals or flammable materials or spray aerosols near this water heater DO NOT modify this water heater DO NOT operate the water heater with any panels or covers removed Installation Precautions The water heater is intended to be installed by properly trained and licensed tradespersons The installer should ca...

Page 3: ...e or a faulty thermostat Turn off the water heater and contact Dux After Sales and Service Relief Valve Discharge Pipe The discharge pipe connected to the PTR Valve is to be installed in a continuously downward direction and in a frost free environment It is normal for water to drip from the discharge pipe of the PTR Valve during heating cycles The discharge pipe must be left open to be atmosphere...

Page 4: ...ure the wires are kept away from the inner tank thermostats and heating elements The thermostat controlling the electric booster is pre set to 60 C and should not be adjusted Gas Booster Temperature Setting The instantaneous gas water heater must be set to 75 C as described on page 19 A remote controller must not be connected to the water heater Solar Controller Installation and Setting The solar ...

Page 5: ...rson as required by the Victorian Building Act 1993 Only a licensed person will provide a compliance certificate showing that the work complies with all the relevant Standards Only a licensed person will have insurance protecting their workmanship Water Heating System This solar water heater is designed and certified to be installed as part of a water heating system Please read this manual in conj...

Page 6: ...Owner s Manual Solar Water Heaters 1 H3165 029664 Rev B Dux Manufacturing Limited 2020 All rights reserved This page is intentionally blank ...

Page 7: ...e Cover 10 Solar Controller Connection 11 Cold Water Connections 12 Hot Water Connections Electric Boosted Models 13 Hot Water Connections Gas Boosted Models 15 Relief Valve 17 Electric Booster Connection 18 Gas Booster Installation 19 Fill Flush and Drain Storage Tank 20 Fill Flush and Drain Solar Collectors 21 Commissioning 22 System Maintenance 23 Non Continuous Operation 25 Considering a Servi...

Page 8: ...to electric boosted models Those pages that are specific to electric boosted models are clearly identified Electric Boosted Solar Water Heater Models are 250DPM36 315DPM36 400DPM36 Gas Boosted Solar Water Heaters Solar water heaters heat water by pumping it through the solar collectors when conditions are suitable During the winter months or when it is cloudy there may not be enough solar energy g...

Page 9: ... 250L 315L 400L A Overall Height mm 1440 1760 1700 B Overall Diameter mm 730 730 820 C Outlet Height mm 1210 1530 1445 D Solar Return Height mm 640 845 645 E Pump Outlet Height mm 520 520 545 F Inlet Height mm 195 195 220 G Electrical Entry Height mm Electric Boosted Models Only 680 880 695 ...

Page 10: ...age of the water heater if a properly drained safe tray has not been installed Refer to local regulations before installing the storage tank in a roof space Water Heater Support The water heater storage tank must be installed on a flat solid supporting surface The pipework must not be used to support the water heater The installation of the storage tank must not compromise the structural integrity...

Page 11: ...rom your local Dux Supplier Water supplies can also be scaling This results in minerals being deposited in the Pressure and Temperature Relief Valve If the water saturation index is above 0 40 an expansion control valve should be fitted Please consult Dux After Sales and Service for advice if required Solar Collectors The solar collectors are designed for use in areas where the Saturation Index of...

Page 12: ...s to prevent the water inside the pipes freezing Failure to insulate the pipes correctly may affect the warranty Solar Return Connection The following fittings are supplied in the Accessories Kit 2 x Ball Valves 1 x Tee 1 x Reducing Union 2 x Compression Fittings The ball valves tee union and compression fittings are to be connected into the RP DN20 socket marked SOLAR RTN on the right hand side o...

Page 13: ...Owner s Manual Solar Water Heaters 8 H3165 029664 Rev B Solar Collector Pipework ...

Page 14: ...r may be discharged from the drain pipe Ensure the drain pipe discharges away from the person operating the drain valve Solar Flow Pipe Installation The solar flow pipe runs from the outlet of the pump to the inlet of the solar collector 1 Remove the retaining screw from the Solar Module Cover and remove the cover 2 Connect the solar flow pipe to the DN15 compression fitting on the pump and tighte...

Page 15: ...ing The Solar Controller is not weatherproof and must be protected by the Solar Module Cover Cover Removal To remove the cover 1 Remove the crosshead screw located on the right hand side of the cover above the solar pump 2 Flex the sides of the cover outward to disengage four clips 3 Remove the cover Cover Replacement Reverse the sequence used to remove the cover The crosshead screw must be replac...

Page 16: ...f protection of IP33 Refer to AS NZS 3000 for further information The GPO must be connected to a single phase 240V a c continuous tariff supply The GPO is not to be switched on until the entire installation is complete Solar Collector Temperature Sensor The solar collector temperature sensor is supplied with the solar collectors Please refer to the Solar Collector Installation Guide The solar coll...

Page 17: ...cations that an expansion control valve be fitted on the cold water supply line between the non return valve and the water heater Cold Water Connection The required valves must be fitted between the water supply main and the RP DN20 socket marked INLET on the left hand side of the water heater towards the bottom The cold water supply valves must be installed in the following sequence Isolating val...

Page 18: ...ked OUTLET on the left hand side of the water heater towards the top Temperature Protection Solar water heaters can produce very hot water To reduce the risk of scald injury AS NZS 3500 4 requires that an approved temperature control device is fitted to the hot water supply to outlets used primarily for personal hygiene This device should be checked at regular intervals to ensure its operation and...

Page 19: ...Owner s Manual Solar Water Heaters 14 H3165 029664 Rev B Hot Water Connections This page only applies to Electric Boosted Solar Water Heater Models ...

Page 20: ...de of the water heater towards the top The length of this pipe must not exceed 2 metres Gas Booster Outlet Connection The hot water pipe that supplies the building is to be connected to the Hot Water Outlet of the instantaneous gas water heater Temperature Protection Solar water heaters can produce very hot water To reduce the risk of scald injury AS NZS 3500 4 requires that an approved temperatur...

Page 21: ...Owner s Manual Solar Water Heaters 16 H3165 029664 Rev B Hot Water Connections This page only applies to Gas Boosted Solar Water Heater Models ...

Page 22: ...s drain line must not be sealed or blocked It is normal for water to drip from the discharge pipe of the PTR Valve during heating cycles Relief Valve Discharge Pipe The discharge pipe from the PTR Valve must be made of copper and run in accordance with the requirements of AS NZS 3500 4 It must be installed in a continuously downward direction in a frost free environment Generally a separate drain ...

Page 23: ...g the two screws at the bottom of the cover and sliding the cover downwards to disengage the top edge Connections The cable entry is a pre punched hole designed to accept a 20 mm conduit gland It is located adjacent to the terminal block To prevent damage to the wiring the cable entry must be fitted with a gland prior to feeding the wiring through the hole Ensure the conduit entry is sealed correc...

Page 24: ...ded a double GPO is installed to provide power to the solar controller and the instantaneous gas water heater Installation An Installation Manual and Owner s Guide is supplied with the instantaneous gas water heater Please refer to these documents for installation instructions Temperature Setting To inhibit the growth of Legionella bacteria the instantaneous gas water heater must be set at 70 C or...

Page 25: ... models turn off the electricity supply to the electric booster 3 For gas boosted models close the gas supply valve and turn off the electricity supply to the gas booster 4 Close the isolating valve at the cold water inlet Draining the Storage Tank 1 Turn off the water heater as described at left 2 Gently operate the easing lever on the Pressure Temperature Relief PTR Valve to release the pressure...

Page 26: ...llector drain pipe ball valve 5 Loosen the DN15 compression fitting on the outlet of the pump 6 Wait for the water to drain out of the solar collectors through the drain pipe and out of the solar flow pipe 7 Retighten the DN15 compression fitting on the outlet of the pump 8 Using a flat bladed screwdriver close the solar collector drain pipe ball valve and open the solar return socket ball valve F...

Page 27: ... between ambient and 150 C Press the button again TST should be displayed The temperature indicated is the lower tank sensor temperature It should be between 0 C and 30 C if the tank has just been filled with water Press the button again S3 or TSTT should be displayed The temperature indicated is the upper tank sensor temperature It also should be between 0 C and 30 C if the tank has just been fil...

Page 28: ...pipe outlet 2 Open the PTR Valve for approximately 10 seconds by lifting the easing lever on the valve Confirm water discharges to waste through the drain pipe 3 Lower the easing lever gently and check it closes correctly 4 Repeat the above process for the expansion control valve if installed 5 Clean the solar collector surface as described on page 24 Other than this personally inspecting or servi...

Page 29: ...and return pipes Repair or replace any damaged insulation Clean the solar collector surface Replacement parts are available from your local Dux supplier Solar Collectors The efficiency of the solar collectors will be reduced if the glass becomes dirty It is recommended that cleaning is carried out early in the morning before the sun starts to heat the collectors The easiest way to clean the glass ...

Page 30: ... is possible that the water in the solar collectors will freeze and damage the collectors or pipework If the power supply fails or the circuit to the solar controller has to be turned off and the ambient temperature is expected to drop below 5 C the solar collectors and pipework should be drained as described on page 21 Not Using Hot Water WARNING If the water heater is not used for two weeks or m...

Page 31: ...dripping hot water tap A small leak can waste a large quantity of hot water Replace faulty tap washers and arrange for your plumber to rectify any leaking pipe work Pressure Temperature Relief Valve discharging too much water Please refer to Relief Valve Discharging Water below Relief Valve Discharging Water Continuous Trickle A continuous trickle of water from the Pressure Temperature Relief PTR ...

Page 32: ...e water in the solar collectors approaches zero the solar controller will turn on the pump for a short period to feed warm water into the collectors This function is provided to reduce the chance of water freezing in the collectors and causing damage Booster not Operating Electric Boosted Models Electric boosted models use an electric element installed in the storage tank of the water heater to bo...

Page 33: ...ux warrants against defects in the water heater arising from faulty materials or workmanship for a period of one year Conditions apply see below During this period Dux will repair or replace any failed component or where necessary in the absolute discretion of Dux replace the water heater free of charge including reasonable labour costs incurred during normal business working hours Extended Tank F...

Page 34: ...ater is installed in a position that does not comply with the installation instructions or statutory requirements then this warranty does not cover major dismantling or removal of cupboards doors walls or special equipment and or excessive labour at the determination of Dux to make the water heater accessible for repair or replacement Where the Dux water heater is located outside the metropolitan ...

Page 35: ...limited to any one or more of the following replacement of the water heater repair of the water heater refunding the cost of the water heater payment of the reasonable costs of having the water heater repaired payment in respect of the reduced value of the water heater How to Make a Warranty Claim Warranty claims can be placed by completing the following steps Contact Dux on one of the numbers lis...

Page 36: ...ase Register Your Water Heater Please take a moment to fill out your details for warranty registration at This will ensure all your current details are registered with us for prompt warranty service if required To view our privacy policy please visit http www dux com au p privacy or use your smartphone to scan this code H3165 029664 Rev B H3165 ...

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