HOT WATER HEAT PUMP MANUAL • Installation • Commissioning • Owners (warranty) FOR ADVICE, REPAIRS AND SERVICE: CALL 1300 365 115 (AUSTRALIA) 0800 729 389 (NZ) Effective for Airoheat Hot Water Heaters manufactured and sold after 1st June 2006.
CONTENTS WELCOME TO DUX HOT .................................................... 3 1.0 INSTALLATION DETAILS ........................................... 4 LOCATION ................................................................................................................. 4 PREFERRED LOCATION .......................................................................................... 5 NOISE CONSIDERATIONS ....................................................................................... 6 AIR FLOW .
WARRANTY ....................................................................... 20 SCOPE OF WARRANTY AND GUARANTEE ................... 20 WARRANTY CARD............................................................ 22 APPLIANCE DETAILS.............................................................................................. 22 INSTALLER’S DETAILS ........................................................................................... 22 SERVICE DETAILS ..................................................
1.0 INSTALLATION DETAILS This water heater must be installed by a licensed tradesperson, and in accordance with: • AS/NZS3500.4.2 “National Plumbing and Drainage Code Hot Water Supply Systems – Acceptable Solutions” . • Local authority regulations. • Outside Australia and New Zealand, please refer to local plumbing and building codes and regulations.
NOTE: All models are equipped with a sacrificial anode, accessible through the top cover. Allow 50% of the height of the water heater for clearance above to replace the anode. The water heater has a plastic base which is resistant to water damage but it is recommended that a concrete plinth be installed under the water heater to protect the heater when subjected to wet conditions. A properly drained overflow tray must be used where property damage could occur from water spillage. (See AS/NZS3500.4.
NOISE CONSIDERATIONS The selected location must consider noise impact on living areas, especially bedrooms, inside the house. Although the running noise level is very low (50 dB(A)) it can be expected that the heat pump will run during the night. The installer can assist in choosing the appropriate location for the Airoheat. . AIR FLOW Ensure the unit is placed in an area were debris such as leaves and paper etc, will not collect and block the air outlet on the top of the unit.
PLUMBING CONNECTIONS STORAGE TANK INSTALLATION Install and connect the storage tank to the household water reticulation system as per local plumbing regulations and codes. Install a condensation drain line in a continuous fall away from the heat pump to a safe and legal point of discharge. Usually this would be a garden bed or similar location. PRESSURE & TEMPERATURE RELIEF VALVE The Pressure & Temperature relief valve is supplied loose with the water heater.
HOT WATER CONNECTION The hot water line should be connected to the RP¾/20 socket as shown on the Installation diagram. For the most economical operation of the water heater, it is recommended that all hot water lines are insulated with high temperature, UV resistant 13mm closed cell insulation. Please check local regulations regarding the use of hot water supply pipe work other than pipes made of copper.
WATER QUALITY Your Dux water heater has been manufactured to suit common water conditions present in most Australian metropolitan supplies. Please note that harsh water supplies can have a detrimental effect on the water heater and its life expectancy. If you are unsure about your water quality you can obtain information from your local water supply authority. Water can also contain material known to create lime scale where lime scale can build up and block safety fittings.
INSTALLATION CHECK LIST 1. Always transport the Airoheat in the upright position, if you lay it on its side the refrigeration system may be compromised and the system may fail. 2. Avoid installing the unit near a bedroom window. 3. The Airoheat produces water condensation so make sure the unit is installed on a flat surface and that a drain line is installed from the condensation drain port so as to conduct the water to a suitable drainage point. 4.
2.0 COMMISSIONING THE SYSTEM When both the plumbing and electrical connections have been completed the system is ready to run. Before applying power to the system ensure that the system is full of water and pressurised. Turn on the power supply; the Hotlogic control system will then check the unit’s operating parameters. If conditions are suitable and there is enough energy available in the surrounding air, the fan and compressor will turn on.
OPERATIONAL DIAGRAM Part No: H3023 Version: 10155A 12 of 22
COMMISSIONING CHECK LIST 1. The Airoheat produces water condensation so make sure the unit is installed on a flat surface, and ensure you install a condensate drain from the condensate drain port down the side of the water heater. 2. Tempering Valves are a requirement, ensure you commission them correctly; incorrect commissioning leads to lack of hot water delivery. 3. Make sure the all copper pipes are lagged with high temperature closed cell 13mm minimum insulation. 4.
3.0 OWNERS INSTRUCTIONS HOW DOES THE HEAT PUMP MODULE WORK? A Heat Pump uses complex thermodynamic principles to extract energy from ambient air and transfer this energy to water that is in contact with the unit’s immersed heat exchanger. The Heat Pump’s operational principles are similar to those used in a normal domestic refrigerator except in reverse.
HOW LONG WILL THE HEAT PUMP RUN EACH DAY? The length of time that the Airoheat will run each day will vary dependent upon the amount of hot water being used by the household and the average outdoor ambient temperature. Generally the Airoheat will run longer in winter and at night when the outside air temperature contains less energy. As a general guide in ambient conditions of 25 degrees C and inlet water temperatures of 15 degrees C the Airoheat will take 2.5 hours to heat from cold to 59-60 degrees C.
WHAT SHOULD I DO DURING HOLIDAYS? If you are going to be away for a week or more, it is advisable to turn off the electricity supply to the system. While there is no damage likely if the electricity is left on you will consume energy through storage tank heat losses which can be avoided. WARNING: If the hot water system is not used, for two weeks or more, a quantity of hydrogen gas, which is highly flammable, may accumulate in the water heater.
• • • Do you have the correct size water heater for your requirements? Sizing details are available from your Dux supplier. Is one outlet (such as the shower) using more hot water than you think? Carefully review the family's hot water usage and if necessary check the shower flow rates with a bucket, measuring the amount of water used over that period of time. If it is not possible to adjust water usage patterns, an inexpensive flow control valve can easily be fitted to the shower outlet.
Most importantly the electricity supply must be turned OFF. Every 5 years you should contact the local service agent to replace all safety valves and anodes to ensure continued system life and operational safety. In locations where the potable water has a TDS greater than 600 ppm, this service is recommended every 3 years. SAFETY INFORMATION For safe performance this water heater is fitted with: • an over-temperature energy cut-out thermostat. • a combination pressure & temperature relief valve.
SERVICE INFORMATION SIX MONTHLY SERVICE-BY OWNER Operate the Pressure & Temperature relief valve for approximately 10 seconds by operating the easing lever on the valve to ensure water is relieved to waste through the relief drain pipe. Check to ensure the valve closes correctly. FIVE YEAR SERVICE - BY AUTHORISED PERSONNEL ONLY The five yearly services should be carried out by a licensed tradesperson where it is recommended that this service be carried out by your local Dux agent.
WARRANTY 1. You’re Airoheat and its components are covered by a 1 year warranty against defective factory parts or workmanship from the date your Airoheat is installed. If the date of installation is unknown, the warranty commences 1 month after the date of manufacture (which can be found on the serial plate on the Airoheat) 2. This warranty is for normal use of the Airoheat and covers the repair and/or replacement of any failed component in the Airoheat.
9. Where the Airoheat system is located outside the metropolitan area of a capital city and is:a. more than 25 kilometres from a Dux office; or b.
WARRANTY CARD Enclosed with the heater you will find a warranty card - please fill in the details and return immediately. This will ensure prompt service if required. Product Warranty is only applicable in Australia and New Zealand. (See page 16 for terms of warranty.
