Riva PLUS COMBI, Installation & Operation Instructions

Page 1: ...ch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Fol low the gas supplier s instructions If you can not reach your gas supplier call the fire department Installation and service must be performed by a qualified installer service agency or the gas supplier WARNING If the information in this manual is not followed exactly a fire or explosion may res...

Page 2: ...c cessfully as those we specify The installing contractor is the best judge of a system s specific requirements as well as the local availability of certain makes and models of controls and accessories The preceding does not apply however to the equipment that comes with every boiler such as the overheat control and pressure relief valves The installation of the spe cific devices supplied with eve...

Page 3: ...ation 7 15 Mounting Bracket 8 16 Venting 9 17 24 Restrictor Sizing 9 1 19 Fitting the Flue System 9 2 19 Choice of Flue 9 3 20 23 Pipe Connections 10 24 Gas Pipe Connections 11 25 Electrical Connections Wiring 12 26 27 Power Connection 12 1 26 Connection to the Electricity Supply 12 2 26 Room Thermostat Connection 12 3 27 Relay Panel Control Connection 12 4 27 Zone Valve Microswitch Connection 12 ...

Page 4: ...t 15 7 37 Labels Placement 15 8 37 Checking the Flue System and Comb 15 9 38 Instructing the User 15 10 39 Gas Conversion 16 40 Annual Maintenance 17 41 43 Warnings 17 1 41 Dismantelling the External Panels 17 2 41 Emptying the C h System 17 3 41 Emptying the D h w circuit 17 4 42 Cleanig the Burner 17 5 42 Checking the combustion fan 17 6 42 Checking the Flue 17 7 42 Checking the press in the exp...

Page 5: ... be performed by a qualified installer ser vice agency or the gas supplier WARNING If the information in this manual is not followed exactly a fire or explosion may result causing property dam age personal injury or loss of life DANGER Caution Do not store or use flammable materials chemicals or flammable liquids especially gasoline in the vicinity of this heating appliance Caution Should overheat...

Page 6: ...ten confused with those of influenza and the highest incidence of poisoning occurs at the onset of cold weather or during flu season A victim may not experience any symptoms only one symptom or a few symptoms Suspect the presence of carbon monoxide if symptoms tend to disappear when you leave your home The following signs may indicate the presence of carbon monoxide Hot gasses from appliance venti...

Page 7: ...clean and free of all fire hazards Please read the literature and warranties supplied by the manufacturers of the various accessory equipment This equipment is warranted by the respective manufacturers not by Quincy Hydronic Technologies Inc Each piece of equipment must be installed and used according to the recommendations of the manufacturer Codes and Regulations Installation of the boiler and r...

Page 8: ...tains an integral frost protection system to prevent frost dam age which can occur in areas susceptible to very cold weather conditions Boiler operation recognition system should the boiler not be used for longer than 24 hours it then performs a con trolled system test to ensuring the motor ized components within the boiler do not become inoperable due to lack of use Gas valve modulation the gas i...

Page 9: ...64 Flue pipe diameter Coaxial in 2 25 4 3 25 5 Twin split pipes in 3 25 3 25 Nominal heat flow rate 0 2000ft MBH 116 0 Nominal heat flow rate 2000 4500ft MBH 110 2 Min Exhaust temperature F 140 Max Exhaust temperature F 180 GAS FLOW RATE Gas Min Max Natural ft h 48 7 115 1 Propane lb h 2 2 5 2 CLEARANCE TO COMBUSTIBLES Front in 18 Back in 0 Top in 8 Sides in 2 Bottom in 8 Flue pipe enclosed in 2 F...

Page 10: ...18 Central heating temp Probe NTC 19 Central heating pressure relief valve 20 Primary circuit flow switch 21 Main circuit drain cock 22 By pass valve 23 Three way diverter valve 24 Venturi device 25 Flue outlet pipe 26 Air Intake Pipe 27 Control panel 28 Safety thermostat probe 29 Pressure reducing automatic fill valve 30 Backflow preventer 31 Gas supply line cock 32 Water supply inlet cock 33 Con...

Page 11: ...RIVA PLUS COMBI MANUAL 11 4 Internal Piping Parts List Note Pressure Relief Valve 19 should be piped to a drain or to the floor as lose as pos sible to a drain ...

Page 12: ...12 RIVA PLUS COMBI MANUAL 5 Electric Diagrams ...

Page 13: ...h closed Begin wait period Presence of flame Air pressure switch closed Starts ignitors Opens gas valve Begins ignition timing Flame presence Closes gas valve Stops fan Interrupts ignitor Boiler lockout End of ignition period Interrupt igniter Gas valve open Reset push button pressed Flame presence Safety thermostat Opens the circuit Flame presence Close gas valve NO YES YES NO NO NO NO NO NO NO N...

Page 14: ...sh air intake the room must have proper vent louvers installed There should be two louvers place each within 12 of the ceiling and floor respectively Each vent will have a free area of 54 square inches 8 0 in 27 7 in 12 8 in 3 0 in 18 0 2 0 in 15 8 in 10 0 in 2 0 in CLOSET INST ALLATION MINIMUM PERM ANANT CLEARANCE FRONTV I S W E I DE VIEW CLOSET INST ALLATION CLOSET INST ALLATION SERVICECLEARANCE...

Page 15: ...ontally or 1 foot above any door window or gravity inlet into any building 3 The Vent hood shall not be less than 2 feet from an adjacent building 4 The Vent hood shall be not less than 7 feet above grade when located adjacent to public walkway 5 The Vent hood shall be located so that flue gasses are not directed to jeopardize people overheat combustible structures materials or enter buildings 6 M...

Page 16: ...he particular wall construction Mounting Steps 1 Tape the paper template to the wall in the chosen location Be sure to level the template 2 Pre drill two holes in the center of the oval slots on the mounting bracket sized for the hardware being used 3 Mount the bracket to the wall Be sure to level the bracket by adjusting the screw in the vertical slot 4 Pre drill the remaining hole in the mountin...

Page 17: ...determine there is no blockage or restriction leakage corrosion and other deficiencies which could cause an unsafe condition c Insofar as is practical close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building Turn on clothes dryers and any appliance not connected to the ...

Page 18: ...rict compliance with the manufacturer s instructions A copy of the installation instructions shall remain with the appliance or equipment at the completion of the installation 4 A metal or plastic identification plate shall be mounted at the exterior of the building four feet directly above the location of vent terminal The plate shall be of sufficient size to be easily read from a distance of eig...

Page 19: ...red separately in 3 foot increments Dependin on th efinal flue pipe lenght an alter native restrictor may be required Refer to the tables 9 1 for proper restrictor ring sizing Separate 3 25 3 25 Restrictor Size From 3 30 to 49 2 ft in out 45 From 49 2 to 99 ft in out No restrictor Coaxial 2 5 4 0 Restrictor Size From 0 to 2 9 ft 82 From 2 9 to 9 ft No restrictor Table 9 1 9 2 Fitting the flue syst...

Page 20: ...ising extensions This flue system can only be used to discharge horizontally it is not designed to enable termination in the vertical plane Installation Drill hole A on the wall template through the outside wall that is less than 18 thick Cut the pipe as necessary so that a no more than 6 protrudes from the house Slide the intake and exhaust pipes through the hole Slide one rubber wall trim piece ...

Page 21: ...e maximum permissible lenght of either pipe must be reduced by 3 0 ft or 5 4 ft respectively The sum of the lenghts of the two horizontal part must be less than 49 2 ft Installation Drill holes B C on the wall template through the outside wall that is less than 18 thick Cut the pipes as necessary so that no more than 6 of intake pipe protrudes from the house and the exhaust pipe is a minimum of 4 ...

Page 22: ...ust be less than 49 ft Installation Drill holes B C on the wall template through the outside wall Drill hole C on the wall template through the outside wall that is less than 18 thick Cut the pipes as necessary so that no more than 6 of intake pipe protrudes from the house and the exhaust pipe is a minimum of 4 inches longer than the intake pipe Slide the Intake and exhaust pipes through the respe...

Page 23: ... can be used to offset the flue route Each additional elbow reduces the overall acceptable length of the flue system as follows 45 reduce length by 1 6 ft 90 reduce length by 3 2 ft Installation Drill hole through the outside roof Cut the pipe as necessary Slide the intake and exhaust pipes through the hole Slide one rubber wall trim piece on the pipe from inside and one from outside Connect exhau...

Page 24: ...sate trap to an appropriate drain pipe Before connecting the boiler to the heating system piping review the suggested piping dia grams in Section 4 page 11 If the c h system is above the boiler level it is advisable to install c h cocks close to the boiler for servicing operation A hot water boiler installed above radiation level or as required by the Authority having juris diction must be provide...

Page 25: ... ground level to conform to local codes if any Massa chusetts statecode requires gas shut off to be a tee handled gas cock Locate a drop pipe adjacent to but not in front of the boiler Locate a tee F in the drop pipe at the same elevation as the gas inlet connection to the boiler Extend the drop line with a nipple towards the floor and cap to form a sediment trap E Install a shut off valve A befor...

Page 26: ...tricallybonded to ground in accordance with the requirements of the authority having jurisdiction or in the absence of such requirements with the National Elec trical Code ANSI NFPA 70 and or Canadian Electrical Code Part I CSA C22 1 Electrical Code Aux États Unis garder un espace d au moins 4 pieds horizontalement du terminal d évacuation aux compteurs du gaz compteurs de l électricité régulateur...

Page 27: ...en connecting any type of external control the jumper J in Fig 12 6 must be removed The room thermostat must be connected to the Control Terminal Block Fig 12 7 Figure 12 7 Connect the room thermostat between terminals 1 and 3 as shown in Fig 12 7 The relay control must be connected to the terminal block situated next to the control panel Figure 12 8 When connecting any type of relay con trol the ...

Page 28: ...tch the jumper J in Fig 12 10 must be re moved Figure 12 11 Connect the micro switch of the zone valve to terminals 1 and 3 as shown in fig ure 12 11 Connect the zone valve switch to the room thermostat as shown in figure 12 11 12 6 Finishing Route the electrical supply cord and the external control cord as illustrated in Fig 12 12 Figure 12 12 Lock the cords in place with the flexible cord clamps...

Page 29: ...ed flow rate using the graph above If the internal circulator is adequate direct system piping can be utilized See section 4 page 12 for suggested direct supply return piping If the internal circulator is inadequate a secondary circulator must be utilized See sections 14 for suggested primary secondary piping 13 2 Expansion vessels The height difference between the C h PRV 19 on page 11 and the hi...

Page 30: ... so the flow restrictor seats into the pipe tail Then install the pipe tail onto the boiler There are two methods for accomplishing a Primary Secondary piping system The first is to use two closely spaced tees for the boiler supply and return An example is shown below in Figure 14 1 The run legs should be sized so that there is no excessive head loss on the exter nal circulator that is installed I...

Page 31: ...are to be supplied by the installer It is very important to use an hydraulic separator before secondary circulators All external piping components are to be supplied by the installer It is very important to use a hydraulic separator before secondary circulators Figure 14 3 14 Piping Cont ...

Page 32: ...UAL 14 2 Primary Secondary Piping with Zone Valves All external piping components are to be supplied by the installer It is very important to use a hydraulic separator before secondary circulators Figure 14 4 14 Piping Cont ...

Page 33: ...RIVA PLUS COMBI MANUAL 33 14 3 Manifold Piping with Zone Valves shown conn to radiators All external piping components are to be supplied by the installer Figure 14 5 14 Piping Cont ...

Page 34: ...filling the system The actual reading should ideally be 1 3 bar 19 psi and not less than 0 3 bar 4 3 psi Close all air release valves on the c h system Inspect the boiler and the system for water soundness and remedy any leaks discovered Cold flush the system to remove any loose particles and any system debris be fore starting the boiler for the first time Reassemble the front panel of the case Re...

Page 35: ...nnect a pressure gauge using a suitable hose Figure 15 4 Set the c h temperature control knob to its maximum position If external controls are fitted e g room thermostat ensure they call for heat Switch on the boiler Check the maximum gas pressure and com pare the value on the gauge with the value indicated in the Section 2 on page 10 gas pressures at the burner Check the maximum gas flow at the g...

Page 36: ... in Fig 15 5 until you obtain the required pressure by rotating clockwise the pressure increases Turn the boiler off and disconnect one of the two connectors E in Fig 15 5 Start the boiler and rotate the minimum gas pressure adjustment G in Fig 15 5 until you obtain the required pressure by rotat ing clockwise the pressure increases Turn the boiler off and re connect the wire to the modulating ope...

Page 37: ...re 15 9 Adjust the gas pressure at the injectors to the value indicated in the tables of section 2 By rotating the device clockwise the pressure increases After the adjustment operations bring the selector 3 of figure 15 9 back to the nor mal position ON Reassemble the service panel Close the gas valve outlet pressure test point 15 figure 15 5 Reassemble the front pannel of the case Important afte...

Page 38: ...t complete unless labels supplied are placed on the boil er as shown in Figure 15 10 All the labels supplied with the boiler are numbered for reference According to Figure 15 10 place all the labels on the boiler Use label numbered as 1 already installed in the front panel to begin the placement in the correct way ...

Page 39: ...Explain the proper use and adjustment of all system controls this will ensure the greatest possible safety and fuel economy Explain the function and use of the function switch Explain how to turn off the appliance for both short and long periods and advise on the pre cautions necessary to prevent damage should the appliance be inoperative when freezing conditions may occur Fill in the details requ...

Page 40: ...replacing the burner injectors cor rectly Re assemble the burner the front panel of the combustion chamber and the lid of the sealed chamber Extract the control panel as explained in the section 12 1 of this manual Loosen the screws D and remove the ser vice panel figure 16 2 Figure 16 2 Set correctly the dip switch 2 to the cor rect position Fig 16 3 in accordance with the following table Gas sup...

Page 41: ... Loosen the three screws A Fig 17 1 Lift and remove the panel Side Panels Loosen the screws B Figure 17 2 Bring the bottom of the panels away from the boiler and lift them freeing them from the top hooks Take off the front panel of the case then the sealed chamber lid and the front panel of the com bustion chamber If you notice dirt on the fins of the primary heat 9 on page 10 cover the slop ing s...

Page 42: ... on the boiler Remove the vent connector from the boiler by pulling vertically on it Remove the first elbow from the horizontal run of the exhaust to the outside Using a flashlight inspect each length of vent pipe for obstructions and dirt buildup Clean any that is found with an appropriate sized brush Inspect the venture device inside the outlet of the combustion fan Make sure that it is free of ...

Page 43: ...s soundness Recheck operational pressures and adjust as necessary as described in Section 15 4 page 37 of this manual 17 11 Cleaning the primary heat exchanger Take off the front panel of the case then the sealed chamber lid and the front panel of the com bustion chamber If you notice dirt on the fins of the primary heat exchanger 9 on page 11 cover the sloping surfaces of the burner 7 on page 11 ...

Page 44: ...44 RIVA PLUS COMBI MANUAL 18 Vent Part Spares Figure 18 1 Description Order Number Twin pipe kit 10999 0393 0 For any spare parts please contact QHT Inc at 800 501 7697 ...

Page 45: ...RIVA PLUS COMBI MANUAL 45 Figure 18 2 Description Order Number Coaxial flue kit 10999 0387 0 18 Vent Part Cont For any spare parts please contact QHT Inc at 800 501 7697 ...

Page 46: ...46 RIVA PLUS COMBI MANUAL Figure 18 3 Part Description Order Number A Coaxial flue kit 10999 0387 0 18 Vent Part Cont For any spare parts please contact QHT Inc at 800 501 7697 ...

Page 47: ..._______________________________________________________ Performance Tests GROSS STACK TEMPERATURE __________________ ROOM TEMPERATURE AMBIENT ________________ NET STACK TEMPERATURE _____________________ CO2 __________________ O2 ___________________ SMOKE READING ___________________ COMBUSTION EFFICIENCY _________________ COMMENTS ___________________________________________________________ ________...

Page 48: ...17962 1481 0 3808 52A4 USA REV 1209 ...