Owner’s Guide and Installation Instructions Air Sourced 310 Heat Pump Water Heater This water heater must be installed and serviced by an authorised person. Please leave this guide with the householder.
Notice to Victorian Customers from the Victorian Plumbing Industry Commission. This water heater must be installed by a licensed person as required by the Victorian Building Act 1993. Only a licensed person will give you a Compliance Certificate, showing that the work complies with all the relevant Standards. Only a licensed person will have insurance protecting their workmanship for 6 years. Make sure you use a licensed person to install this water heater and ask for your Compliance Certificate.
CONTENTS HOUSEHOLDER – We recommend you read pages 4 to 13. The other pages are intended for the installer but may be of interest. About Your Water Heater ............................................................................................................ 4 Regular Care ................................................................................................................................ 8 Water Supplies......................................................................................
ABOUT YOUR WATER HEATER MODEL TYPE ® Your Rheem air sourced heat pump water heater is designed for outdoor installation only. The model you have chosen is a 551 series model. The 551 310 model heat pump water heater is recommended for connection to a minimum 16 hour per day power supply. A Rheem heat pump water heater consumes less energy than an electric water heater. The impact on an electricity account will depend on the tariff arrangement of the water heater replaced and where you live.
ABOUT YOUR WATER HEATER HOW HOT SHOULD THE WATER BE? The system controls (compressor, evaporator and fan) will operate until a water temperature of approximately 60°C is reached. If the ambient air temperature is outside of the heat pump‟s operating range, the water temperature is boosted automatically to 60°C by the electric booster heating unit, if heating is required. To meet the requirements of the National Plumbing Standard the temperature of the stored water must not be below 60°C.
ABOUT YOUR WATER HEATER TO TURN OFF THE WATER HEATER If you plan to be away from home for only a few nights, we suggest you leave the water heater switched on. If it is necessary to turn off the water heater: Switch off the electrical supply at the isolating switch to the water heater. Close the cold water isolation valve at the inlet to the water heater. TO TURN ON THE WATER HEATER Open the cold water isolation valve fully on the cold water line to the water heater.
ABOUT YOUR WATER HEATER ENVIRONMENT At the end of the service life of the heat pump water heater and prior to the water heater being disposed of, a person qualified to work with refrigerants must recover the refrigerant from within the sealed system. The refrigerant must not be vented to atmosphere. Phone Rheem Service or their nearest Accredited Service Agent to arrange for an inspection.
REGULAR CARE TEMPERATURE PRESSURE RELIEF VALVE This valve is near the top of the water heater and is essential for its safe operation. It is possible for the valve to release a little water through the drain line during each heating period. This occurs as the water is heated and expands by approximately 1/50 of its volume. Continuous leakage of water from the valve and its drain line may indicate a problem with the water heater (refer to “Temperature Pressure Relief Valve Running” on page 13).
WATER SUPPLIES This water heater must be installed in accordance with this advice to be covered by the warranty. This water heater is manufactured to suit the water conditions of most public reticulated water supplies. However, there are some known water chemistries which can have detrimental effects on the water heater and its operation and / or life expectancy. If you are unsure of your water chemistry, you may be able to obtain information from your local water supply authority.
WATER SUPPLIES CAUTION If the water supply has a TDS greater than 150 mg/L and a green anode has not been changed to a black anode, or if the TDS is greater than 600 mg/L and the anode has not been changed to a blue anode, there is the possibility the anode may become overactive and hydrogen gas could accumulate in the top of the water heater during long periods of no use. In areas where this is likely to occur, the installer should instruct the householder on how to dissipate the gas safely.
SAVE A SERVICE CALL Check the items below before making a service call. You will be charged for attending to any condition or fault that is not related to manufacture or failure of a part. NOT ENOUGH HOT WATER (OR NO HOT WATER) Is the electricity switched on? Inspect the isolating switch marked “HOT WATER” or “WATER HEATER” at the switchboard and the isolating switch (if one is installed) at the water heater and ensure they are turned on.
SAVE A SERVICE CALL HEAT PUMP IS NOT OPERATING Time controlled power supply If the water heater is connected to a time controlled power supply, then during periods of no power supply at the water heater the heat pump and booster heating unit will not operate. This is not a fault condition, but a result of no power being available to operate the water heater.
SAVE A SERVICE CALL TEMPERATURE PRESSURE RELIEF VALVE RUNNING Normal Operation It is normal and desirable this valve allows a small quantity of water to escape during the heating cycle. However, if it discharges more than a bucket full of water in 24 hours, there may be another problem. Continuous dribble Try gently raising the easing lever on the relief valve for a few seconds (refer to “Temperature Pressure Relief Valve” on page 8).
INSTALLATION THIS WATER HEATER IS FOR OUTDOOR INSTALLATON ONLY. THIS WATER HEATER IS NOT SUITABLE FOR POOL HEATING. The installation must comply with the requirements of AS/NZS 3500.4, AS/NZS 3000 and all local codes and regulatory authority requirements. In New Zealand, the installation must conform with Clause G12 of the New Zealand Building Code. The 551 310 model heat pump water heater is recommended for connection to a minimum 16 hour per day power supply.
INSTALLATION It is recommended the heat pump water heater be installed at ground or floor level and must stand vertically upright, supported by a level slab or solid base. The base of the water heater is made of corrosion resistant material, and it may be placed directly in contact with the supporting surface. It is not necessary to allow for free air circulation under the base of the water heater.
INSTALLATION 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 the water heater and the hot water outlets in any ablution area such as a bathroom or ensuite, 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.
INSTALLATION CIRCULATED HOT WATER FLOW AND RETURN SYSTEM A 551 310 model heat pump water heater should not be installed as part of a circulated hot water flow and return system in a building. If a circulated flow and return system is required, it is necessary to bypass the heat pump water heater and install a secondary water heater connected to the hot water flow and return line and supplied from the heat pump water heater.
INSTALLATION REDUCING HEAT LOSSES The cold water line to and the hot water line from the water heater must be insulated in accordance with the requirements of AS/NZS 3500.4. The insulation must be weatherproof and UV resistant if exposed. ANODE TYPES The vitreous enamel lined cylinder of the water heater is only covered by warranty when the total dissolved solids (TDS) content in the water is less than 2500 mg/L and when the correct colour coded anode is installed.
INSTALLATION TYPICAL INSTALLATON – OUTDOOR LOCATION TYPICAL INSTALLATION HEAT PUMP WATER HEATER 19
INSTALLATION DIMENSIONS AND TECHNICAL DATA HEAT PUMP DIMENSIONS Part numbers 551 310 System number Model Number 1.8 kW 551 310 04 Tank only 1.8 kW T551 310 04 2.4 kW 551 310 05 Tank only 2.4 kW T551 310 05 3.6 kW 551 310 07 Tank only 3.
HEAT PUMP AND TANK ASSEMBLY STORAGE TANK AND HEAT PUMP MODULE The heat pump water heater is made of two main components, the storage tank and the heat pump module. For transport and handling (weight) purposes both items are shipped separately and designed to be assembled at the installation site. The water heater must not be operated until both components are assembled. HEAT PUMP MODULE The heat pump module is to be mounted on the top of the storage tank.
HEAT PUMP AND TANK ASSEMBLY ASSEMBLY PROCEDURE Warning: The heat pump must be assembled, plumbed and filled with water prior to power being connected and switched on. The following procedure should be followed to properly lift, place and connect the heat pump module onto the storage tank: 1. Storage Tank: Remove all packaging including the carton base from the storage tank and position in its intended location, supported by a level slab or solid base.
HEAT PUMP AND TANK ASSEMBLY 3. Air Louvre Removal: Using a Phillips head screw driver, remove the six (6) screws from each of the two air louvres (twelve (12) screws in total). 4. Remove the louvres from the heat pump module. Electrical Cover: Remove the mounting screw from the side of the electrical cover. Gently remove the cover. The electrical cover needs to be handled gently so as not to damage the electronic controls located behind the electrical cover. Step 4 remove electrical cover 5.
HEAT PUMP AND TANK ASSEMBLY 6. Heat Pump Module Placement: Using two people, one person on each lifting bar, lift the heat pump module and place it on the top of the storage tank. It is recommended to place the hands under the bar to enable the lift in a curl action. Ensure the two water fittings on the storage tank pass through the openings marked “INLET” and “OUTLET” on the heat pump module chassis.
HEAT PUMP AND TANK ASSEMBLY 9. Inlet Flexible Braided Hose: Attach the flexible braided hose marked “INLET” to the water fitting marked “INLET”. Tighten the swivel nut on the hose using a 24 mm spanner. Push down the pipe seal ring to seat over the swivel nut and against the pipe seal cover. Step 9 attach inlet water hose and seat pipe seal ring 10. Outlet Flexible Braided Hose: Attach the flexible braided hose marked “OUTLET” to the water fitting marked “OUTLET”.
HEAT PUMP AND TANK ASSEMBLY 11. Air Bleed Valve: Open the air bleed valve screw by rotating anticlockwise one turn. This will allow air to bleed from the circulator and flexible hose during the filling of the tank process. Leave the screw in this position. Ensure the screw is not removed, nor left screwed shut.
HEAT PUMP AND TANK ASSEMBLY 14. Electrical Cover: Replace the electrical cover, engaging the bottom of the cover into the slots on the supporting bracket. Secure at the side with the mounting screw. 15. Water Connections: Connect the cold water supply and the hot water pipe work to the water heater. Connect the temperature pressure relief valve and its drain line. Refer to “Connections – Plumbing” on page 28 16. Water Supply: Turn on the cold water supply and fill the water heater.
CONNECTIONS – PLUMBING CONNECTION SIZES Hot water connection: RP¾/20. Cold water connection: RP¾/20. Relief valve connection: RP½/15. All plumbing work must be carried out by a qualified person and in accordance with the Plumbing Standard AS/NZS 3500.4 and local authority requirements. WATER INLET AND OUTLET The pipe work must be cleared of foreign matter before connection and purged before attempting to operate the water heater.
CONNECTIONS – PLUMBING EXPANSION CONTROL VALVE Local regulations may make it mandatory to install an expansion control valve (ECV) in the cold water line to the water heater. In other areas, an ECV is required if the saturation index is greater than +0.4 (refer to “Water Supplies” on page 9). The expansion control valve must always be installed after the non return valve and be the last valve installed prior to the water heater (refer to diagram on page 28).
CONNECTIONS – ELECTRICAL The power supply to the water heater must not be switched on until the water heater is filled with water and a satisfactory megger reading is obtained. MEGGER READING When a megger test is conducted on this water heater, then the following should be noted. Warning: This water heater contains electronic equipment and 500 V insulation tests must only be conducted between active and earth and between neutral and earth. An active to neutral test WILL damage the electronics.
CONNECTIONS – ELECTRICAL WIRING DIAGRAM E GR/YEL RELAY GR/YEL GR/YEL RED ORANGE RED N.O. N.C.
MULTIPLE INSTALLATIONS A multiple installation of Rheem heat pump water heaters on a single manifold or multiple manifolds is ® possible, using the Equa-Flow manifold system, where large volumes of hot water is required. The EquaFlow principle will function with water heaters in line, around a corner or in rows back to back (refer to the diagrams on pages 33 to 34). The cold water and hot water manifolds must be designed to balance the flow from each water heater.
MULTIPLE INSTALLATIONS TYPICAL INSTALLATION – MULTIPLE HEAT PUMP WATER HEATERS TPR Valve Drain Line Common Discharge Point LEGEND MULTIPLE HEAT PUMP WATER HEATERS TYPICAL INSTALLATION INSTALLATION DIMENSIONS – MULTIPLE HEAT PUMP WATER HEATERS In Line Manifold Angle Manifold Back to Back Manifold Notes 1.
MULTIPLE INSTALLATIONS MANIFOLD ARRANGEMENT Hot Manifold Assembly Manifold Arrangement - Multiple Cold Manifold Assembly Installation Pump Water Heaters ManifoldHeat Arrangement - Multiple Installation Heat Pump Water Heaters 34
COMMISSIONING TO FILL AND TURN ON THE WATER HEATER The power supply to the water heater must not be switched on until the water heater is filled with water and a satisfactory megger reading is obtained. Open all of the hot water taps in the house (don‟t forget the shower). Open the cold water isolation valve fully to the water heater. Air will be forced out of the taps. Close each tap as water flows freely from it. Check the pipe work for leaks.
DRAINING THE WATER HEATER To drain the water heater: Turn off the water heater (refer to “To Turn Off The Water Heater” on page 35). Close all hot water taps. Operate the relief valve release lever - do not let the lever snap back or you will damage the valve seat. Operating the lever will release the pressure in the water heater. Undo the union at the cold water inlet and attach a hose. Let the other end of the hose go to a drain. Operate the relief valve again.
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RHEEM HEAT PUMP WATER HEATER WARRANTY - AUSTRALIA ONLY HEAT PUMP WATER HEATER MODEL 551310 WARRANTY CONDITIONS 1. This warranty is applicable only to water heaters manufactured from 1st August 2010. 2. The water heater must be installed in accordance with the water heater installation instructions, supplied with the water heater, and in accordance with all relevant statutory and local requirements of the State in which the water heater is installed. 3.
RHEEM HEAT PUMP WATER HEATER WARRANTY - AUSTRALIA ONLY WARRANTY – HEAT PUMP WATER HEATER MODEL 551310 Rheem will repair or replace, at Rheem’s sole discretion and subject to the warranty conditions and exclusions, any component, the storage tank or the heat pump module if it fails within the warranty period below. Installation All Components (from date of installation) Period Warranty All installations Year 1 New component, storage tank or heat pump module, free of charge, including labour.
