Rheem Optima- Manuals

ABOUT YOUR WATER HEATER 5 HOTTER WATER INCREASES THE RISK OF SCALD INJURY This water heater can deliver water at temperatures which can cause scalding. Check the water temperature before use, such as when entering a shower or filling a bath or basin, to ensure it is suitable for the application and ...

ABOUT YOUR WATER HEATER 6 WARNING This water heater is only intended to be operated by persons who have the experience or the knowledge and the capabilities to do so. This water heater is not intended to be operated by persons with reduced physical, sensory or mental capabilities i.e. the infirm, or...

ABOUT YOUR WATER HEATER 8 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. Unplug the ...

9 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 approxi...

REGULAR CARE 10 TEMPERATURE LIMITING VALVE The valve should be checked for performance every twelve months. This can be performed by measuring the water temperature from a hot tap with a thermometer. If the water is being delivered at a temperature exceeding 55°C, phone a Rheem Service Centre. The v...

11 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 eff...

WATER SUPPLIES 12 CONDUCTIVITY - µS/cm TOTAL DISSOLVED SOLIDS & CONDUCTIVITY (vitreous enamel lined water heater cylinder) 40 150 400 600 TOTAL DISSOLVED SOLIDS (TDS) - mg/L ANODE SELECTION warranty applies to a vitreous enamel lined water heater cylinder if the correct coloured anode is used fo...

WATER SUPPLIES 13 SATURATION INDEX The saturation index is used as a measure of the water‟ s corrosive or scaling properties. In a corrosive water supply, the water can attack copper parts and cause them to fail. Where the saturation index is less than –1.0, the water is very corrosive and warranty ...

WATER SUPPLIES 14 CHANGE OF WATER SUPPLY The changing or alternating from one water supply to another can have a detrimental effect on the operation and / or life expectation of a water heater cylinder, a temperature pressure relief valve and a heating unit. Where there is a changeover from one wate...

15 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 the manufacture or failure of a part. NOT ENOUGH HOT WATER (OR NO HOT WATER) Is the electricity switched on? Inspect the isolating switch mark...

SAVE A SERVICE CALL 16 Water heater size Do you have the correct size water heater for your requirements? The sizing guide in the Rheem sales literature and on the Rheem website (www.rheem.co.nz) suggests average sizes that may be needed. TEMPERATURE PRESSURE RELIEF VALVE RUNNING Normal Operation It...

SAVE A SERVICE CALL 17 EXPANSION CONTROL VALVE RUNNING If an expansion control valve is fitted in the cold water line to the water heater (refer to page 27 ) it may discharge a small quantity of water instead of the temperature pressure relief valve on the water heater. The benefit is that energy is...

18 INSTALLATION 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 the New Zealand Building Code. All packagi...

INSTALLATION 19 Remember all local authorities have regulations about putting water heaters into roof spaces. SAFE TRAY It is a requirement of AS/NZS 3500.4 that for a new installation, a water heater be installed in a safe tray where in the event of a leak, property may otherwise be damaged. Constr...

INSTALLATION Feet for Rheem Externally Mounted Cylinders Optima 180, 300 and 400L Mains Pressure Water Heaters (3 pieces) Outside diameters 180 model – 488mm 300 model – 580mm 400 model – 690mm Feet are 50mm in from edge of cylinder Installation options: 1. Push tags into soft concrete at correct po...

INSTALLATION 2 1 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 a Rheemglas or Optima water heater and the hot water outlets in any ablution area such as a bathroom...

INSTALLATION 2 2 CIRCULATED HOT WATER FLOW AND RETURN SYSTEM If a Rheem water heater is to be installed as part of a circulated hot water flow and return system, a storage water heater able to provide a hot water outlet temperature of at least 60°C must be used. Note: The thermostat must always be a...

INSTALLATION 2 3 Circulated Hot Water Flow and Return Continuous Electric Water Heater Off-Peak or Time Controlled Electricity Supply A single or twin element electric water heater connected to an Off-Peak electricity supply should not be installed as part of a circulated hot water flow and return s...

INSTALLATION 2 4 ANODE 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. The use of an incorrect colour coded anode will void the c...

INSTALLATION 2 5 DIMENSIONS AND TECHNICAL DATA Optima Single Element Optima Twin Element 913 180 - - - 913 300 9 13 40 0 Hot Water Delivery Litres 18 0 3 0 0 400 Boost Capacity Litres - 50 90 Dimensions A mm 1 720 1 825 1840 B mm 488 580 690 C mm 554 646 755 D mm 1 482 1 569 1479 E mm 7 4 74 121 F m...

INSTALLATION 26 TYPICAL INSTALLATION – OUTDOOR LOCATION TYPICAL INSTALLATION – INDOOR LOCATION OUTDOOR LOCATIONS IN DOOR LOCATIONS Seismic strapping must conform with G12 NZ Building Code Plastic feet supplied must be fitted to base of cylinder.

2 7 CONNECTIONS – PLUMBING CONNECTION SIZES Optima Hot water connection: RP ¾/20 Cold water connection: RP ¾/20 Relief valve connection: RP ½/15 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. WA...

CONNECTIONS – PLUMBING 2 8 PIPE SIZES To achieve true mains pressure operation, the cold water line to the water heater should be the same size or bigger than the hot water line from the water heater. The pipe sizing for hot water supply systems should be carried out by persons competent to do so, c...

CONNECTIONS – PLUMBING 2 9 RELIEF VALVE DRAIN DN15 copper drain lines must be fitted to the temperature pressure relief valve and expansion control valve (if one is installed) to carry the discharge clear of the water heater. Connect the drain lines to the valves using disconnection unions. The drai...

30 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. All electrical work and permanent wiring must be carried out by a qualified person and in accordance with the Wiring Rul...

CONNECTIONS – ELECTRICAL 31 For reasons of safety and economy, we advise the thermostat be set at the lowest temperature that will provide sufficient hot water. Dishwasher running costs can be adversely affected if the thermostat is set below 65°C. Discuss the thermostat setting requirements with th...

CONNECTIONS – ELECTRICAL 3 2 WIRING DIAGRAM TWIN ELEMENT ELECTRIC WATER HEATERS NON-SIMULTANEOUS OPERATION OFF-PEAK CONNECTION Electrical Circuit for Twin Element Models – Robertshaw “ST” Thermostats The active from the continuous supply must be connected to the top heating unit circuit and the acti...

3 3 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 hous e (don‟ t forget the shower). Open the cold water ...

3 4 DRAINING THE WATER HEATER To drain the water heater: Turn off the water heater (refer to “To Turn Off The Water Heater” on page 3 3 ). 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 rel...

3 5 RHEEM ELECTRIC DOMESTIC MAINS PRESSURE WATER HEATER WARRANTY WARRANTY CONDITIONS 1. This warranty is applicable only to water heaters manufactured from 1 st Oct 2010. 2. The water heater must be installed in accordance with the water heater installation instructions, supplied with the water heat...

RHEEM ELECTRIC DOMESTIC MAINS PRESSURE WATER HEATER WARRANTY WARRANTY In addition to your legal rights, Rheem New Zealand makes the following promise to the customer. We will repair, or if necessary, replace a defective domestic water heater, or part, which has failed due to faulty manufacture on th...