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QHT Riva Combi Installation & Operation Instructions

Other manuals for Riva Combi: User manual and instructions
Manual is about: WALL HUNG GAS BOILER FOR CENTRAL HEATING AND DOMESTIC HOT WATER SUPPLY

Summary of Riva Combi

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    Boiler installation, operation instructions hot water supply please read instructions carefully save for future reference central heating and domestic riva combi wall hung gas boiler for warning: if the information in this manual is not followed exactly, a fire or explosion may result causing proper...

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    Riva combi manual - rev b 2.

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    Dear customer: thank you for buying a biasi riva combi boiler system. The riva combi is a high efficiency, non-condensing, wall mounted gas boiler which provides central heat and domestic hot water. We realize that it is not possible to answer all questions about the riva combi boiler system in this...

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    Table of contents section title section number page number warnings - 6-7 important information - 8 general information 1 9 technical information (m35.30cb) 2 9-10 parts list 3 11 internal piping and parts list 4 12 electric diagrams 5 13 installation location 6 14 exhaust pipe location 7 15 mountin...

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    Table of contents section title section number page number manifold piping with zone valves or circ. 14.3 29 commissioning 15 30-35 filling the d.H.W. System 15.1 30 initial filling of the system 15.2 30 lightning the boiler 15.3 31 checking the gas pres. At the burner 15.4 31 adjustment of the gas ...

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    Installer notes 18 41 boiler is certified as an indoor appliance. Do not install boiler outdoors or locate where it will be exposed to freezing temperatures. Warning warning: if the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal i...

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    • stale or smelly air. • the presence of soot or carbon in or around the appliance. • very high unexplained humidity inside the building. Warning any appliance that burns natural gas, propane gas, fuel oil, wood or coal is capable of producing carbon monoxide (co). Carbon monoxide (co) is a gas whic...

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    Important information please read this page carefully. • all boilers must be installed in accordance with national, state and local plumbing, heating and electrical codes and ordinances, as well as the regulations of the serving electrical, water and gas utilities. • all systems should be designed b...

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    The riva combi is a high efficiency, non-condensing, wall mounted gas boiler which provides central heat and domestic hot water. The boiler features a gas valve which modulates the energy input from 44,000 btu/h to 108,000 btu/h. The boiler is shipped fully assembled with the components listed on pa...

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    Energy capacity nominal heat input (0/2000ft) mbh 122.8 nominal heat input (2000/4500ft) mbh 116.7 minimum heat input mbh 49.5 maximum useful output (0/2000ft) mbh 100.7 maximum useful output (2000/4500ft) mbh 95.9 minimum useful output mbh 37.0 gas supply pressure gas normal min max natural inwc 7....

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    3. Parts list primary components : 1 2 4 5 3 6 9 7 10 11 8 12 14 20 18 13 19 21 15 22 16 24 17 26 35 25 1 pump 2 pump vent plug 3 automatic air purger valve 4 modulation gas valve 5 three-way diverter valve 6 d.H.W. Expansion vessel 7 flame-detecting electrode 8 ignition electrodes 9 burner 10 combu...

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    4. Internal piping & parts list 29 13 34 33 26 11 8 19 1 24 4 20 3 5 16 28 21 12 7 22 23 18 36 9 27 31 32 6 30 15 25 37 38 39 40 note : • pressure relief valves (#24, #25) should be piped to a drain or to the floor as close as possible to a drain. • this diagram is a graphical representation only an...

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    Ye bk wh gy bu rd bk gy gy gy m ~ m ~ t t probe ntc d.H.W. Temperature probe ntc c.H. Temperature com no m ~ com no nc 1 2 3 bk bu bn rd rd gnye gy wh bu rd bk bu wh gy bu gnye bk bk rd bk wh gy gnye bu bk bk bu bu bu bu rd bk gy gy bu bn bn bu l n rd bu bn gnye gnye gnye bu bn bu rd gnye rd wh bk f...

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    5.1 sequence of operation riva combi manual - rev b 14.

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    6. Installation location the installation location chosen must: • comply with all clearances listed below. • provide suitable location for the exhaust and intake venting. • not be installed in an unheated space. • comply with all local codes and standards. Note: dimensions shown are minimums. Greate...

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    7. Exhaust pipe location caution external vent surfaces are hot. Note: use only listed components supplied with the boiler. Surface discoloration of the building may occur due to improper installation. Qht will not accept responsibility or liability for such discoloration. It is responsability of th...

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    Condensate from the flue gases 8. Mounting bracket after a suitable installation location is chosen, verify that the mounting wall is properly braced and strong enough to support the 300 pound weight of the unit when filled with water. Note: the boiler shall be installed such that the gas ignition s...

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    5.3 3.3 3.0 3.7 figure 8.1 the riva is a mechanical draft, side wall vented boiler. There are two side wall flue options available – separate and coaxial. The coaxial option has one configuration shown on the next page. The separate option has two possible configurations shown on the following pages...

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    System are located and other spaces of the building. Turn on clothes dryers and any appliance not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace d...

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    Figura 9.1 coaxial 2.5/4.0 restrictor size from 1.65 to 3.30 (ft) 41 from 3.30 to 8.86 (ft) 44 separate 3.25/3.25 restrictor size for 1.65 (in) and 1.65 (out) 38 from 3.30 to 39.40 (in+out) 41 table 9.1 9.2 fitting the flue system: in general, it has to be taken in consideration that the orizontal s...

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    Figure 9.2 (coaxial 2.5/4.0 inches – nominal lenght 3.3 ft) it can be fitted to allow discharge to the rear or either side of the boiler via the flanged boiler adapter elbow. Minimum lenght required is 1 ft. Maximum equivalent lenght of 32.8 ft can be achieved utilising extensions. This flue system ...

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    Figure 9.3 (twin pipe φ 3.15 in) various twin (split) pipes kits and optional accessories (elbows) are available to assist in the termination of the flue where the boiler is installed in a location remote to an outside wall. These kits allow for separation of the air supply pipe from the pipe that d...

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    Test ports exhaust collar exhaust elbow exhaust pipe rubber wall trim (2x) exhaust pipe end cap air intake elbow air intake pipe air intake collar figure 9.4 (twin pipe Φ 3.25 in) this configuration of the twin pipe kit allows to discharge the exhaust gasses outside. The air supply is obtained with ...

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    Figure 9.6 (twin pipe Φ 3.25 in) this configuration of the twin pipe kit allows to discharge the exhaust gasses outside. The air supply is obtained with an air intake pipe. This allows to take air from the room where the boiler is installed. If either an additional 45° or 90° accessory elbow is used...

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    Figure 9.7 (twin pipe Φ 3.25 in) these kits allow for separation of the air supply pipe from the pipe that discharges the exhaust gasses. Consequently it is possible to extend the flue system to a greater distance than that provided by the standard coaxial horizontal flue. If either an additional 45...

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    Figure 9.8 (vertical pipe Φ 3.1 / Φ 4.9 in) this kit allows vertical termination of the flue pipe through the roof. The kit is 1.2 min length. Extension pieces (co--axial) are also available which allows the flue system to be extended to a total overall maximum permissible length. Optional 45° and 9...

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    Plastic bag in the boiler package. A) stainless steel gas pipe f g a b c d e h i j figure 10.1 b) main circuit drain cock c) c.H. Return copper pipe d) c.H. Supply copper pipe e) d.H.W. Inlet copper pipe f) d.H.W. Drain cock g) d.H.W. Expansion vessel pipe h) d.H.W. Outlet copper pipe i) d.H.W.Prv d...

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    Riva combi manual - rev b 27 11. Gas pipe connections gas supply piping is to be sized and installed properly in order to provide a supply of gas sufficient to meet the maximum demand without undue loss of pressure between the meter and the boiler. Consult with the national fuel gas code ansi z223.1...

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    12. Electrical connections/wiring 12.1 power connection: b a b figure 12.1 removing front panel: • remove the front panel by removing screws a and sliding the front panel up and away from the boiler removing side panel: • remove screws b c c c c d d figure 12.2 • remove screws c and d. Removing serv...

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    12. Electrical connections/wiring cont. 12.3 room thermostat connection: • the room thermostat must be connected to the terminal block situated next to the control panel. 1 2 l n 3 to fused spur isolation switch power supply terminal block external controls terminal block j 120 vac control terminal ...

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    12. Electrical connections/wiring cont. 12.5 zone valve micro switch connection: • the zone valve micro switch must be connected to the terminal block situated next to the control panel. 1 2 l n 3 to fused spur isolation switch power supply terminal block external controls terminal block j 120 vac c...

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    13. Circulator sizing 13.1 circulator capacity as a function of flow rate: figura 13.1 the hydraulic specification in fig 13.1 represent the pressure (available head for the central heating system) as a function of the flow rate. The pressure loss due to the internal piping in the boiler has already...

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    14. Piping all external piping components are to be supplied by the installer. It is very important to use a primary secondary piping scheme when an external circulator will be used. Also, when the boiler is piped in a primary secondary manner, it is necessary to us the central heating flow restrict...

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    14. Piping 14.1 primary – secondary piping: all external piping components are to be supplied by the installer. It is very important to use an hydraulic separator before secondary circulators. Biasi riva combi boiler boiler return boiler supply secondary circulator backflow preventor and pressure re...

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    14. Piping cont. 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 an hydraulic separator before secondary circulators. Backflow preventor and pressure reducing valve air elimination boiler supply boiler ...

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    14. Piping cont. 14.3 manifold piping with zone valves or circulators (shown conn. To radiators): all external piping components are to be supplied by the installer. Boiler supply boiler return biasi riva combi boiler backflow preventor and pressure reducing valve zone valves biasi steel panel radia...

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    Riva combi manual - rev b 36 15. Commissioning 15.1 filling the d.H.W. System: • close all hot water draw-off taps. Cock (40 on sections 4 and 14) and fill the d.H.W. Storage tank. Draw-off tap and close it only when clear water, free of bubbles, flows out. • gradually open the d.H.W. Cold water inl...

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    15. Commissioning cont. 15.3 lighting the boiler: note: if external controls are fitted (e.G. Room thermostat) ensure they "call for heat". • turn on the electricity supply to the boiler, switching on the circuit breaker switch. The appliance operation light a will flash every 4 seconds. • turn the ...

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    15. Commissioning cont. 15.5 adjustment of the gas pressure: • remove the front panel of the case. • open the gas valve inlet pressure test point (20 in fig. 15.6) at the valve input, connect a suitable pressure gauge and check the gas pressure of the supply network. • remove the gauge and close the...

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    15. Commissioning cont. 15.7 checking the burner ignition: • turn the boiler off. • open the gas valve outlet pressure test point 19 (figure 15.6) and connect the gauge • turn the boiler on positioning the function selector b in the position shown in figure 15.8 and ensure that the room thermostat i...

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    15. Commissioning cont. 15.9 labels placement: 1 4 2 3 5 6 7 figure 15.11 warning: the installation is not complete unless labels supplied are placed on the boiler as shown in figure 15.11. All the labels supplied with the boiler are numbered for reference. According to figure 15.11 place all the la...

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    15. Commissioning cont. 15.10 checking the flue system and combustion: • the flue system should be visually checked for soundness. Check all clamps, gaskets and fixings are secure and tight. • ensure that the flue terminal is sited correctly in accordance with the flue fitting instructions. To check...

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    16. Gas conversion warnings : procedures to adapt the boiler to the type of gas available must be carried out by a competent and responsible person. Components used to adapt it to the type of gas available must be genuine parts only. Procedures: • check that the gas cock (39 in section 4) fitted on ...

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    Riva combi manual – rev b 43 on off 1 2 3 4 on off 1 2 3 4 natural gas l.P.G. Figure 16.5 • close the service panel. • turn on the boiler. • calibrate the gas valve according to the instructions given in section 15.5 of this manual. • set the correct gas pressure for central heating output required....

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    17. Annual maintenance 17.1 warnings: the procedures detailed in this chapter must be carried out only by a professionally qualified person. Thus you are advised to contact an authorised service agent. For efficient and continuous operation of the boiler you are advised to have, at least once a year...

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    17. Annual maintenance cont. 17.5 cleaning the primary heat exchanger: • take off the front panel of the case, then the sealed chamber lid and the front panel of the combustion chamber. If you notice dirt on the fins of the primary heat exchanger (11 on page 11), cover the sloping surfaces of the bu...

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    17. Annual maintenance cont. 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 any dirt build up or blockage. • make sure the seals are properly seated in the female ends of the vent pipe with t...

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    18. Vent part spares part description order number a separate vent termination b termination hardware c wall gaskets d separate flue vent pipe e separate vent sealing gaskets f separate vent 90 degree elbows g boiler vent adapter hardware h separate flue intake pipe i separate flue intake boiler ada...

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    18. Vent part spares cont. Part description order number a coaxial intake pipe b coaxial termination pipe c coaxial union clamp d coaxial union gasket e coaxial exhaust gasket f coaxial boiler adapter gasket g coaxial boiler adapter h coaxial boiler adapter hardware i coaxial union clamp hardware j ...

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    18. Vent part spares cont. Part description order number a roof flashing kit (pitched or flat) b roof venting termination c roof venting termination collar d roof venting termination collar hardware e roof venting exhaust gasket f roof venting exhaust adapter g roof venting intake adapter h roof ven...

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    Riva combi manual - rev b 49.

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    Riva combi manual - rev b 47 18. Installer notes system checkout: serial no.____________ boiler model no.___________________ installer: original purchaser: _______________________ ___________________________ _______________________ ___________________________ _______________________ ________________...

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    *1796212111* 17962.1211.1 2906 (44a4)usa.