Rinnai Demand Duo Operation & Installation Manual Download Page 15

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Rinnai 15

HW Demand Duo Systems OIM

INSTALLATION OPTIONS

The Rinnai Commercial Common Flue System is suitable for the Rinnai Internal Commercial Gas Continuous

Flow Water Heaters (listed on the cover of this manual) in accordance with the flue design options outlined in the

AS/NZS 5601.1 Appendix titled ‘Flue Design'. Figure 1 & Figure 2 below, illustrate typical application principles.

Figure 1. Typical Natural Draft Flue Installation - VRM/VCM-Series

ONLY

Figure 2. Typical Power Flue Installation - Both N-Series & VRM/VCM-Series

NOTE

For more information on the flue system, please refer to the Rinnai Commercial Common Flue

System Operation & Installation Manual.

RINNAI FLUE HEADER(S)

NATURAL DRAFT FLUE PIPE

SUPPLIED BY OTHERS/

ALREADY INSTALLED

CERTIFIED FLUE COWL

CONDENSATE DRAIN

WHERE NECESSARY

RINNAI ADJUSTABLE SLEEVE/OR EQUIVALENT

MULTIPLE RINNAI

WATER HEATERS

ROOF

RINNAI COMMON FLUE

INSERT TERMINAL

ENDCAP

A FALL TOWARDS THE

DRAIN IS REQUIRED

FAN FAILURE SENSING

DEVICE INTERLOCKED WITH

GAS SUPPLY TO APPLIANCES

FAN

DAMPER ADJUSTING

DILUTION AIR

MULTIPLE RINNAI CONTINUOUS

FLOW WATER HEATERS

EXTERNAL WALL

FLUE PIPE SUPPLIED BY

OTHERS / ALREADY INSTALLED

RINNAI FLUE HEADER(S)

EXHAUST OF DILUTED

COMBUSTION AIR.

INTAKE OF FRESH AIR

PLANT ROOM VENTILATION

AND COMBUSTION AIR

RINNAI COMMON

FLUE INSERT TERMINAL

RINNAI ADJUSTABLE

SLEEVE / BEND

OR EQUIVALENT

(Note 1)

A FALL TOWARDS THE

DRAIN IS REQUIRED

CONDENSATE DRAIN

WHERE NECESSARY

INSTALLATION INSTRUCTIONS

Summary of Contents for Demand Duo

Page 1: ...Demand Duo Systems Operation Installation Manual ...

Page 2: ...al must be read and understood before installation commissioning and operation of water heaters and flue systems are attempted The information contained in other Operating Installation instructions supplied with water heaters applies in full unless otherwise dictated in this manual This appliance must be installed in accordance with Manufacturer s Installation Instructions Current AS NZS 3000 AS N...

Page 3: ... from AS NZS 5601 12 Co Axial Flueing for Internal Models 13 Multiple Flue Terminals 14 Installation Options 15 Assembly 16 Specifications 20 Installation Handover Manual 31 Cold Water Supply 31 Hot Water Outlet 31 Return Pump 31 Gas Supply 31 Electrical Supply 31 Filling Instructions 32 Starting Instructions 32 Demand Duo Principle of Operation 32 Thermostatic Controller Operation 33 Demand Duo P...

Page 4: ...d by an authorised person in accordance with all applicable local rules and regulations For continued safety of this appliance it must be installed operated and maintained in accordance with the manufacturer s instructions This appliance is heavy use 2 people or mechanical lifting device Improper lifting may result in serious injury DO NOT modify the electrical wiring of this appliance If the cont...

Page 5: ...appliance is NOT intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety Children should be supervised to ensure that they DO NOT play with the appliance Any power leads from the water heater ...

Page 6: ...troller setting must only be adjusted by suitably qualified trades person SCALD HAZARDS Hot Water can cause scalds Children disabled and the elderly are at the highest risk of being scalded Feel water temperature before bathing or showering Scalds from hot water taps can result in severe injuries to young children Scalds can occur when children are exposed directly to hot water when they are place...

Page 7: ... person It is normal for the PTR valve to release a small quantity of water through the drain pipe during heating If the valve dribbles or leaks continuously try easing the valve gear for a few seconds This may dislodge any foreign matter and stop leakage If leakage does not stop there may be a problem as detailed below If there are heavy flows of water until the water heater is cold which then st...

Page 8: ... water inlet union Attach a hose to the water heater side of the union Let the other end of the hose go to a drain 7 Operate the PTR valve easing gear again This allows air into the water heater and will result in water draining through the hose PERIODIC MAINTENANCE SERVICING Rinnai service network personnel are fully trained and equipped If your Rinnai appliance requires servicing contact Rinnai ...

Page 9: ...ty of the hot water system it is likely that there will be insufficient hot water Has your plumber install water saving fixture and or flow control or pressure limiting valves to reduce consumption Thermostat settings Check the temperature of hot water delivered with a thermometer placed under the closest outlet usually the kitchen sink on a non tempered hot water line The temperature of the water...

Page 10: ...the water connections to the left when viewing the thermistor housing from the front These systems are combined with Rinnai HD series HD28e VCM2837WC HD28i VCM2837FFUC HD250e VRM3237WC HD210e N3237WC and HD210i N3237FFC Rinnai HD units are fan assisted appliances and thus have lower clearances than a natural draft appliance of the same MJ rating HD28E HD250E HD210E EXTERNAL MODELS This appliance i...

Page 11: ...ng at a suitable point For detailed information refer to FLUEING FOR INTERNAL MODELS on page 13 This appliance must be located so that the flue terminal exits the building at a suitable point If a horizontal wall terminal is used the location must be in accordance with Section 6 and Figure 6 2 of AS NZS 5601 Figure 6 2 is reproduced under HORIZONTAL FLUE TERMINAL CLEARANCES on page 12 of this manu...

Page 12: ...er projections FIGURE 6 2 in part LOCATION OF FLUE TERMINALS OF BALANCED FLUE ROOM SEALED FAN ASSISTED OR OUTDOOR APPLIANCES n j Horizontally from an openable window door non mechanical air inlet or any other opening into a building with the exception of sub floor ventilation Vertically below an openable window non mechanical air inlet or any other opening into a building with the exception of sub...

Page 13: ...d individually Horizontal flueing can be used as a direct wall flue or extended from another internal wall Vertical flueing is used when the water heater needs to be flued vertically through the roof A condensate trap may be required for extended flue runs depending on the type of water heater Details are provided in the separate flue installation instructions and MUST be adhered to Rinnai HD inte...

Page 14: ...ULTIPLE FLUE TERMINALS Dimension H in AS NZS 5601 Figure 6 2 does not apply when multiple Rinnai external water heaters of the same model are installed on the same vertical face with flue terminals at the same height Under these conditions appliances can abut each other as shown below Before commencing installation ensure you refer to the content of all other Operation Installation manuals supplie...

Page 15: ...n Installation Manual RINNAI FLUE HEADER S NATURAL DRAFT FLUE PIPE SUPPLIED BY OTHERS ALREADY INSTALLED CERTIFIED FLUE COWL CONDENSATE DRAIN WHERE NECESSARY RINNAI ADJUSTABLE SLEEVE OR EQUIVALENT MULTIPLE RINNAI WATER HEATERS ROOF RINNAI COMMON FLUE INSERT TERMINAL ENDCAP A FALL TOWARDS THE DRAIN IS REQUIRED FAN FAILURE SENSING DEVICE INTERLOCKED WITH GAS SUPPLY TO APPLIANCES FAN DAMPER ADJUSTING ...

Page 16: ...ld the complete system DO NOT install if any components are damaged ASSEMBLY Integrated storage unit with one gas heater DD1 Position tank in desired position Attach PTR valve supplied in box to 20mm port at top of tank As for the DD1 28e 28i 250L or 315L plug off second port with 20mm plug supplied For DD1 250e 210e 210i 250L or 315L attach another PTR valve to second port at the top of tank Plug...

Page 17: ...e water heaters are mounted on it may be necessary to attach flue to water heater and push it through the wall before attaching the water heater to the wall Specifically engineered systems mounted on a skid base do not require any assembly of the heat source unless it has been split purely for transport purposes If this is the case the pipe connections will be marked up accordingly to aid the asse...

Page 18: ...ending on system size Heat source module with mounted controller Thermistor Wiring Pipes fittings by installer Socket Outlets for each water heater and the temperature controller MUST BE provided by the installer Additional tanks can be used and MUST BE suitably plumbed with balanced pipework as indicated Ensure the thermistor is securely fitted to the well in the tank Ensure primary pump s are se...

Page 19: ...a Socket Outlet Plug the power lead supplied into a suitable Socket Outlet Cold Water Supply Install provided relief valves ensuring they are the correct pressure rating Hot Water Out Primary Pump Flow Direction Additional heat source module s depending on system size Heat source module with mounted controller Thermistor Wiring Pipes fittings by installer One Socket Outlet for each row of water he...

Page 20: ...kW UPS20 60N 199 210 RP1 1 4 32mm RP1 1 4 32mm RP 3 4 20mm RP 3 4 20mm DD1 210i 250 int 2 HT 575 92 kW UPS32 100N 209 125 RP1 1 4 32mm RP1 1 4 32mm RP 3 4 20mm RP 3 4 20mm DD1 250e 250 ext 2 HT 575 92 kW UPS25 80N 250 120 RP1 1 4 32mm RP1 1 4 32mm RP 3 4 20mm RP 3 4 20mm DD1 210i 315 int 2 HT 575 92 kW UPS32 100N 209 125 RP1 1 4 32mm RP1 1 4 32mm RP 3 4 20mm RP 3 4 20mm DD1 250e 315 ext 2 HT 575 9...

Page 21: ...L 2080 HOT OUTLET 250L 1465 315L 1855 285 700 250L VERSION ONLY 600 DIA 32mm PORT 32mm PORTS COLD INLET NOT INCLUDED 20mm GAS CONNECTION HOT WATER OUTLETS TEMPER AS REQD SINGLE DUAL CIRCULATION PUMPS OPTIONAL NOT INCLUDED GPO S REQD 1500 WALL GAS CODE AS PER 880 850 kPa PTR VALVE SRAINER COLD EXPANSIVE VALVE NON RETURN VALVE ISOLATION VALVE SPECIFICATIONS ...

Page 22: ...MPER AS REQD SINGLE DUAL CIRCULATION PUMPS OPTIONAL NOT INCLUDED GPO S REQD OVERALL HEIGHT 250L 1690 315L 2080 HOT OUTLET 250L 1465 315L 1855 600 DIA 285 700 250L VERSION ONLY FLUED THRU WALL BEHIND TANK OPTION FLUED THRU WALL NEXT TO TANK OPTION FLUED THRU ROOF OPTION WALL 1500 880 SERVICE SPACE SRAINER COLD EXPANSIVE VALVE NON RETURN VALVE ISOLATION VALVE 20mm GAS CONNECTION SPECIFICATIONS ...

Page 23: ...ai 23 HW Demand Duo Systems OIM DD1 250e 250L 315L NOTE PLUG UNUSED COLD INLET PORT WITH BRASS PLUG 32MM SUPPLIED WITH TANK 885 850 kPa PTR INCLUDED 20mm GAS CONNECTION 700 250L VERSION ONLY SPECIFICATIONS ...

Page 24: ...mand Duo Systems OIM DD1 210e 250L 315L CONDENSATE CONNECTION 885 INCLUDED 700 250L VERSION ONLY 850 kPa PTR 20mm GAS CONNECTION NOTE PLUG UNUSED COLD INLET PORT WITH BRASS PLUG 32MM SUPPLIED WITH TANK SPECIFICATIONS ...

Page 25: ...15L 885 INCLUDED 700 250L VERSION ONLY 32mm PORT 20mm GAS CONNECTION FLUED THRU WALL FLUED THRU WALL NEXT TO TANK OPTION FLUED THRU ROOF OPTION CONDENSATE CONNECTION NOTE PLUG UNUSED COLD INLET PORT WITH BRASS PLUG 32MM SUPPLIED WITH TANK SPECIFICATIONS ...

Page 26: ...0 1690 2080 2080 2080 B 1465 1465 1855 1855 1855 C 285 285 285 285 285 D 385 385 385 385 385 E Diameter 600 600 600 600 600 Hot cold return port 32 50 32 50 50 PTR port s 20 20 20 20 20 Sensor well port 20 20 20 20 20 Ø600 850 kPa PTR Valves x 2 E A Sensor Well B D C 850 kPa PTR Valves x 2 1914 D C A B E 83 675 Sensor Well SPECIFICATIONS ...

Page 27: ...r Valve 360 384 2 DD9 28 Ext Intl 3375 4475 390 414 2 DD10 28 Ext Intl 3750 4850 450 444 2 DD2 210 250 Ext Intl 500 1000 2100 600 1 x HT575 1 x Boiler Valve UPS32 100N 143 155 1 DD3 210 250 Ext Intl 1500 2600 183 195 1 DD4 210 250 Ext Intl 2000 3100 2 x UPS32 100N 228 240 1 DD5 210 250 Ext Intl 2500 3600 268 280 1 DD6 210 250 Ext Intl 3000 4100 308 320 1 DD7 210 250 Ext Intl 3500 4600 2 x HT575 1 ...

Page 28: ...Rinnai 28 HW Demand Duo Systems OIM Typical installation for Demand Duo NOTE PRIMARY PUMP S MUST BE PLUGGED INTO THE CONTROLLER AND NOT AN AVAILABLE SOCKET OUTLET G H I F A C E B K J L M SPECIFICATIONS ...

Page 29: ...iler Valve 360 384 2 DD9 28 Ext Intl 3375 4225 390 414 2 DD10 28 Ext Intl 3750 4600 450 444 2 DD2 210 250 Ext Intl 500 1000 1850 600 1 x HT575 1 x Boiler Valve UPS32 100N 143 155 1 DD3 210 250 Ext Intl 1500 2350 183 195 1 DD4 210 250 Ext Intl 2000 2850 2 x UPS32 100N 228 240 1 DD5 210 250 Ext Intl 2500 3350 268 280 1 DD6 210 250 Ext Intl 3000 3850 308 320 1 DD7 210 250 Ext Intl 3500 4350 2 x HT575...

Page 30: ...nnai 30 HW Demand Duo Systems OIM Typical installation for Demand Duo Plus NOTE PRIMARY PUMP S MUST BE PLUGGED INTO THE CONTROLLER AND NOT AN AVAILABLE SOCKET OUTLET G H I F A C E B K J L M SPECIFICATIONS ...

Page 31: ...ze heat loss Return Pump A secondary or building return pump may be installed in conjunction with the Rinnai Demand Duo hot water system Pump should be sized for minimal temperature loss around the ringmain Pump must have a check valve on the discharge Return line from building loop is connected to the cold water supply pipe after the check valve From that point onwards the cold pipe should be ins...

Page 32: ... 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 th...

Page 33: ...ect model and pressure rating Primary Pump Primary pumps are plugged into the relevant position on the thermostatic controller Refer to manual provided with the controller Some projects may have larger and or dual pumps for redundancy or long primary pipe run situations Pump s operate only when activated by the thermostatic controller and the pump operation is indicated on the controller screen En...

Page 34: ...gs All HD models will display a fault number if one has occurred The following table lists all of the fault codes In jobs that operate for long hours and or in dusty or smoky environments the combustion air fan may become dirty This may be indicated by fault 10 Contact Rinnai Service Internal heaters may operate for a short period of time and then stop This can be caused by the flueing not being p...

Page 35: ... Earthing Failure Service Call 21 Data Transfer Error Service Call 32 Outgoing Water Temperature Sensor Failure Service Call 33 Heat Exchanger Thermistor Failure Service Call 34 Combustion Air Temperature Sensor Failure Service Call 38 Exhaust Thermistor Failure Service Call 41 Freeze Protection Thermistor Failure Service Call 51 Inlet Thermistor Failure Service Call 52 Gas Valve Failure Service C...

Page 36: ...but may contribute excessive back pressure and restrict the pump flow rate Return water should only be slightly cooler than water leaving the tank If the temperature drop around the circuit is too high it may indicate that the ring main pump flow rate is not high enough and indicates a design fault or a blockage in the pipework or poor pipework insulation Investigate valves and operation of pump s...

Page 37: ...e s Installed Yes No Return Strainer Installed Yes No NA Storage Tanks hydraulically balanced Yes No NA Ventilation Requirements Satisfactory Yes No Individual Co Axil Flue Installation Satisfactory Yes No NA Dip Switch Setting Short Long Common Flue Installation Satisfactory Yes No NA Primary Pump s Vented Yes No NA Return Pump s Vented Yes No NA Air removed from flow and return hydraulic circuit...

Page 38: ...three monthly from there onwards For other details refer to Operation Maintenance Manual For effective operation of the system service the package once every six 6 months as per the manufacturer s instructions In compliance to AS NZS 5601 1 figure 6 2 minimum clearance required for any air intake from the exhaust of a water heater is 1500mm In compliance to AS NZS 3500 2 section 6 8 4 termination ...

Page 39: ...Rinnai 39 HW Demand Duo Systems OIM NOTES ...

Page 40: ...l 1800 000 340 Cost of a local call higher from mobile or public phones For further information visit www rinnai com au or email enquiry rinnai com au 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 If your appliance requires service please call our National Help Line Rinnai recommends that this applia...

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