Operation / Installation Manual Rinnai Demand Duo Systems IMPORTANT All Rinnai Demand Duo (DD) systems and components are Watermark Certified by SAI Global as applicable. The Rinnai DD1 model is certified as a gas storage water heater by the Australian Gas Association (AGA). AGA CERTIFICATION APPLIES TO DD1 MODELS ONLY. AGA CERTIFICATION DOES NOT APPLY TO OTHER DD MODELS IN THIS MANUAL.
TABLE OF CONTENTS IMPORTANT INFORMATION & WARNINGS ........................................................................ 1 Safety and Regulatory Information .................................................................................................... 1 WARNINGS ............................................................................................................................ 1 Hydrogen Gas ...................................................................................................
IMPORTANT INFORMATION & WARNINGS Safety and Regulatory Information The Rinnai Demand Duo systems and components are Watermark Certified by SAI Global as applicable. The Rinnai DD1 model is certified as a gas appliance by the Australian Gas Association (AGA). AGA Certification covers DD1 models only. AGA Certification does not apply to other DD models covered in this manual. NOTE This appliance must be installed correctly by an authorised person and must conform to location regulations.
IMPORTANT INFORMATION & WARNINGS Hydrogen Gas If the hot water heater is not used for two weeks or more, a quantity of hydrogen gas, which is highly flammable, may accumulate in the water heater. To dissipate this safety, it is recommended that a non-electrically operated hot tap be turned on for several minutes at a sink, or bath, but at dishwasher or other appliance. During this procedure there must be not smoking, open flame or any electrical operating nearby.
IMPORTANT INFORMATION & WARNINGS Gas boosted models only • Do not touch the flue outlet or do not insert any objects into the flue outlet. • Keep flammable materials, spray cans, fuel containers, trees, shrubs and pool chemicals etc. well clear of the flue outlet. • Do not use the gas types other than those designated on HOT! the data plate. For example, do not use Propane/Butane gas mixtures on appliances marked Propane Gas. • Do not use Propane gas on appliances marked as Natural Gas and vice versa.
IMPORTANT INFORMATION & WARNINGS Expansion Control Valve (ECV) - if fitted Operate the easing lever on the expansion control valve once every six months. It is very important you raise and lower the lever gently. Servicing and Repair Our servicing network personnel are fully trained and equipped to give the best on your Rinnai appliance. If your appliance needs service, ring one of the service contact numbers on the back of this booklet.
IMPORTANT INFORMATION & WARNINGS If the valve discharges at high flows, especially at night, it may be as a result of the water pressure exceeding the design pressure of the water heater. Ask your installer to fit a Pressure Limiting Valve (PLV). • NEVER replace the PTR valve with one which has a higher pressure rating than is specified for your water heater.
GENERAL INSTALLATION INSTRUCTIONS These instructions apply to the Demand Duo range of Rinnai water heaters: Models Covered DD1 200 (external or internal) 250 or 315 (litre tank) N or L (Natural gas or LPG) DD1 250 (external) 250 or 315 (litre tank) N or L (Natural gas or LPG) DD1C 211 (external or internal) 250 or 315 (litre tank) N or L (Natural gas or LPG) DD2 200 (external or internal) 250 or 315 (litre tank) N or L (Natural gas or LPG) DD2C 211 (external or internal) 250 or 315 (litre tank) N or L (Natu
GENERAL INSTALLATION INSTRUCTIONS If installed in an enclosure either Internally or Externally, the location should be ventilated to allow gas to dissipate and provision must be made for the safe disposal of any leaking water to a visible location. This appliance must not be used as a domestic spa or swimming pool heater. Two types of flue systems are available: 1. The Rinnai Commercial Common Flue System.
GENERAL INSTALLATION INSTRUCTIONS Horizontal Flue Terminal Clearances (Extract from AS/NZS 5601) Flue terminal Fan assisted flue appliance only Ref. Gas meter Electricity meter or fuse box Mechanical air inlet Min.
GENERAL INSTALLATION INSTRUCTIONS Co-Axial Flueing for Internal Models This system is certified and suitable for use with Rinnai non-condensing internal commercial continuous flow water heaters. The Rinnai INFINITY Flueing system must be installed in accordance with the instructions supplied with the flue terminal. Non Rinnai flueing systems MUST NOT be used. Installations can consist of both horizontal and vertical runs to a maximum of 9 metres with a maximum of three 90° bends.
GENERAL INSTALLATION INSTRUCTIONS Only Rinnai Flueing systems can be used with Internal Water Heaters. Non-Rinnai Flueing systems are not certified and will not be covered under warranty. NOTE If flue length exceeds 1.5 metres, dip-switch 1 of SW1 located inside the HD unit is to be switched to the ‘OFF’ position. For all further information on Internal Flueing, please refer to separate Flueing manual supplied with Flueing components. Multiple Flue Terminals Dimension 'H' in AS/NZS 5601 Figure 6.
GENERAL INSTALLATION INSTRUCTIONS All Rinnai Demand Duo systems with HD200 water heaters have the manifold and flue centres at 375 mm. This is slightly further apart than above and is acceptable. NOTE Common Flue System for Internal models The Rinnai Commercial Common Flue System is certified and suitable only for use with Rinnai noncondensing internal commercial continuous flow water heaters. It is NOT suitable for use with Rinnai condensing water heaters.
GENERAL INSTALLATION INSTRUCTIONS DD1 200 External/Internal DD1C 211 External/Internal DD1 250 External DD2 200 External/Internal DD2C 211 External/Internal DD3 200 External/Internal DD3C 211 External/Internal DD4 200 External/Internal DD4C 211 External/Internal DD5 200 External/Internal DD5C 211 External/Internal DD6 200 External/Internal DD6C 211 External/Internal N/A BOILER VALVE packed with manifold N/A FITTINGS packed with manifold N/A 1 * HT 575 N/A N/A N/A 2 * HT 575 N/A N/A N/A 1 * HT 5
GENERAL INSTALLATION INSTRUCTIONS • • • Join inlet of primary pump to tee at cold inlet fitting on tank with 32mm pipe. Join outlet of primary pump to inlet of cold (bottom) pipe on manifold. Fit cover so that pump is weatherproof. Ensure power cable enters pump from below and that it is not a track for water to enter pump. NOTE • • • Remaining port on the tee is the cold water inlet to the system. It is also the ringmain return point.
GENERAL INSTALLATION INSTRUCTIONS DD1 200e / 250L & 315L SECOND COLD INLET OR 250L: 700 315L: 385 850 kPa PTR 845 INCLUDED NOTE: PLUG UNUSED COLD INLET PORT WITH BRASS PLUG 32 MM SUPPLIED WITH TANK Rinnai Australia 14 Operation / Installation Manual
GENERAL INSTALLATION INSTRUCTIONS 845 SECOND COLD INLET OR 250L: 700 315L: 385 DD1 200i / 250L & 315L NOTE: PLUG UNUSED COLD INLET PORT WITH BRASS PLUG 32 MM SUPPLIED WITH TANK Rinnai Australia 15 Operation / Installation Manual
GENERAL INSTALLATION INSTRUCTIONS DD1 250e / 250L & 315L SECOND COLD INLET OR 250L: 700 315L: 385 x2 NOTE: PLUG UNUSED COLD INLET PORT WITH BRASS PLUG 32 MM SUPPLIED WITH TANK Rinnai Australia 16 Operation / Installation Manual
GENERAL INSTALLATION INSTRUCTIONS DD 250L & 315L COLD IN ALTERNATE RETURN 250L: 700 315L: 385 x2 NOTE: PLUG UNUSED COLD INLET PORT WITH BRASS PLUG 32 MM SUPPLIED WITH TANK Rinnai Australia 17 Operation / Installation Manual
GENERAL INSTALLATION INSTRUCTIONS DD COMBO 250L & 315L COLD IN ALTERNATE RETURN 250L: 700 315L: 385 x2 NOTE: PLUG UNUSED COLD INLET PORT WITH BRASS PLUG 32 MM SUPPLIED WITH TANK Rinnai Australia 18 Operation / Installation Manual
GENERAL INSTALLATION INSTRUCTIONS DD2-DD6 Models Drawing and Specifications All dimensions are (mm) DD Model A B C D E DD2 200 Ext/Int. DD3 200 Ext/Int. 375 725 1825 715 600 375 1100 2200 715 600 DD4 200 Ext/Int. DD5 200 Ext/Int. DD6 200 Ext/Int.
GENERAL INSTALLATION INSTRUCTIONS Typical Rinnai Demand Duo DD2 system installation 19801023 MP2 32201719 32201719 19801023 17201046 19001021 17201042 16601080 DDUPS2580N 19801022 16601080 19801022 19801023 19801023 Pipe & fittings by installer 16601080 32201722 32201722 16001045 16001045 32201719 Pipe & fittings by installer Pipe & fittings by installer 16001045 Combo Tank DD2 KIT Exploded Assembly Diagram Pump Set Components Pipe & fittings by installer Typical Rinnai Demand Duo D
GENERAL INSTALLATION INSTRUCTIONS Typical Rinnai Demand Duo DD4 system installation 32201719 32201719 17201046 19001021 17201042 16601080 DDUPS2580N 19801022 16601080 19801022 16601080 19801023 Pipe & fittings by installer 19801023 32201722 19801023 32201722 32201722 32201722 16001045 16001045 32201719 Pipe & fittings by installer Pipe & fittings by installer 16001045 Combo Tank 19801023 MP 2 MP 2 DD4 KIT Exploded Assembly Diagram Pump Set Components Pipe & fittings by installer
GENERAL INSTALLATION INSTRUCTIONS Cold Water Supply • • • Connect cold water pipe work to one of the cold inlets of tank, including required valves as shown in diagrams on previous page to comply to AS/NZS 3500 and local regulations. (Block unused cold port with brass plug 32 mm). Maximum cold water inlet pressure is 650 kPa. Fit pressure limiting valve (rated @ 700 kPa) if cold water inlet pressure is in excess of 650 kPa.
INSTALLATION HAND OVER MANUAL Demand Duo Principle of Operation Cold water enters the storage tank after passing through an isolation and non return valve. A tee is fitted to the cold inlet pipe down stream from the non return valve. From this tee, one branch connects to the lower inlet of the storage tank and the other branch connects to the primary (tank circulation) pump. (Not applicable to DD1 Models). This pumps water to the inlet of the INFINITY(S) heat source.
INSTALLATION HAND OVER MANUAL Tank • • • • Ensure that tank is not leaking. Ensure that PTR valves are not leaking. It is normal for PTR valve to operate during the heating cycle, relieving pressure as the water is expanding. The PTR Valve is rated to 850 kPa and cold inlet pressure should not exceed 500-700 kPa. If it does, then a pressure reduction valve should be fitted to the cold water inlet. Valve may be operating if water temperature in tank is close to 99°C.
INSTALLATION HAND OVER MANUAL • • • • • All models up to late 2006: Look at flame through inspection window for conical shape, blue base and yellow tip. Flame height will vary if heater is modulating. Inspection window is located in front cover of appliance. All new HD models: when operating the number displayed should be higher than the temperature setting on the tank mounted thermostat. • Eg Tank = 65°C, INFINITY = 75°C. These are factory standard settings. • Eg Tank = 80°C, INFINITY = 85°C.
INSTALLATION HAND OVER MANUAL Ringmain Pump • • • • These are used for circulating water around the building. They are normally left on or may have a time clock to switch it off at night when the building is not in use. These pumps do not pressurise the system. They must have a non return valve. • Swing non return valves must be horizontal or upward as the rely on gravity to close the valve.
INTENTIONALLY BLANK Rinnai Australia 27 Operation / Installation Manual
INTENTIONALLY BLANK Rinnai Australia 28 Operation / Installation Manual
CONTACT INFORMATION Internet: www.rinnai.com.au E-mail: enquiry@rinnai.com.au ABN 74 005 138 769 Head Office National Help Line 10-11 Walker Street, Braeside, Victoria 3195 P.O. Box 460 Tel: (03) 9271 6625 Fax: (03) 9271 6622 Tel: 1300 555 545* Fax: 1300 555 655* *Cost of a local call Higher from mobile or public phones. Rinnai has a Service and Spare Parts network with personnel who are fully trained and equipped to give the best service on your Rinnai appliance.
