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RIVA COMBI MANUAL - REV B

34

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.

14. Piping Cont.

Backflow Preventor
and
Pressure Reducing
Valve

Air Elimination

Boiler Supply

Boiler Return

Hydraulic
Separator

Biasi Riva
Combi
Boiler

Secondary
Circulators

Zone Valves

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Содержание RIVA COMBI

Страница 1: ...your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you can not reach your gas supplier call the fire department Installation and service...

Страница 2: ...uccessfully 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 accessorie...

Страница 3: ...g 9 1 18 Fitting the Flue System 9 2 19 Choice of Flue 9 3 20 25 Pipe Connections 10 26 Gas Pipe Connections 11 27 Electrical Connections Wiring 12 28 30 Power Connection 12 1 28 Connection to the Ele...

Страница 4: ...and Combustion 15 10 41 Instructing the User 15 11 41 Gas Conversion 16 42 43 Annual Maintenance 17 44 46 Warnings 17 1 44 Dismantling the External Panels 17 2 44 Emptying the d h w System 17 3 44 Em...

Страница 5: ...n your building Immediately call your gas supplier from a neighbour s phone Follow the gas supplier s instructions If you can not reach your gas supplier call the fire department Installation and serv...

Страница 6: ...sed 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...

Страница 7: ...lean and free of all fire hazards Please read the literature and warranties supplied by the manufacturers for the various accessory equipment This equipment is warranted by the respective manufacturer...

Страница 8: ...Boiler operation recognition system should the boiler not be used for longer than 24 hours it then performs a controlled system test to ensuring the motorized components within the boiler do not becom...

Страница 9: ...inimum Venturi pressure inwc 0 66 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 122 8 Nominal heat flow rate 2000 4500ft MBH 116 7 Min E...

Страница 10: ...tank 17 Safety thermostat 18 Modulation operator 19 Gas valve outlet pres Test point 20 Gas valve inlet pres Test point 21 Central heating expansion vessel 22 Central heating temp Probe NTC 23 D h w...

Страница 11: ...s 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 and is not drawn to scale Do not use for piping purposes 29 13 34 33...

Страница 12: ...ree way Pump Valve Gas External Controls Terminal Block Electric Supply Terminal Block Fan Safety Thermostat Air Pressure Switch Ignition Electrodes Flame Detection Electrode bn brown bu blue bk black...

Страница 13: ...RIVA COMBI MANUAL REV B 13 5 1 Sequence of Operation...

Страница 14: ...room with no fresh 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 o...

Страница 15: ...t directed to jeopardize people overheat combustible structures materials or enter buildings 6 Minimum of 4 feet horizontal clearance from electric meters gas meters regulators and relief equipment 7...

Страница 16: ...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 t...

Страница 17: ...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...

Страница 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 ide...

Страница 19: ...on the final flue pipe length an alternative restrictor may be required Refer to the tables 9 1 for proper restrictor ring sizing Figura 9 1 Coaxial 2 5 4 0 Restrictor Size From 1 65 to 3 30 ft 41 Fr...

Страница 20: ...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...

Страница 21: ...sible length of either pipe must be reduced by 3 0 ft or 5 4 ft respectively The sum of the lengths of the two horizontal parts must be less than 50 ft Installation Drill holes B C on the wall templat...

Страница 22: ...dditional 45 or 90 accessory elbow is used then the maximum permissible length of either pipe must be reduced by 3 0 ft or 5 4 ft respectively Note When utilizing this option see page 14 for room vent...

Страница 23: ...th of either pipe must be reduced by 3 0 ft or 5 4 ft respectively Note When utilizing this option see page 14 for room ventilation details Installation Drill hole C on the wall template through the o...

Страница 24: ...of the two horizontal parts must be less than 49 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 tha...

Страница 25: ...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 throug...

Страница 26: ...w expansion vessel pipe H D h w outlet copper pipe I D h w PRV discharge copper pipe J C h PRV discharge copper pipe Installation Remove the protective caps off boiler connections Figure 10 1 Thorough...

Страница 27: ...ent 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 fo...

Страница 28: ...bonded to ground in accordance with the requirements of the authority having jurisdiction or in the absence of such requirements with the National Electrical Code ANSI NFPA 70 and or the Canadian Ele...

Страница 29: ...ly terminal block External controls terminal block T Room thermostat 1 2 L N 3 120V rating Figure 12 7 Connect the room thermostat between terminals 1 and 3 as shown in Fig 12 7 12 4 Relay Panel Conne...

Страница 30: ...emoved 120 VAC Control Terminal Block 1 L N 3 V T Zone Valve Room Thermostat Figure 12 11 Connect the micro switch of the zone valve to terminals 1 and 3 as shown in figure 12 11 Connect the zone valv...

Страница 31: ...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...

Страница 32: ...xternal circulator that is installed In most circumstances 1 piping will be the best choice When the boiler is piped in this way the external circulator will not have any hydraulic effect on the Riva...

Страница 33: ...nts are to be supplied by the installer It is very important to use a hydraulic separator before secondary circulators BIASI RIVA COMBI BOILER BOILER RETURN BOILER SUPPLY SECONDARY CIRCULATOR BACKFLOW...

Страница 34: ...ts are to be supplied by the installer It is very important to use a hydraulic separator before secondary circulators 14 Piping Cont Backflow Preventor and Pressure Reducing Valve Air Elimination Boil...

Страница 35: ...es 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 Reducin...

Страница 36: ...e cold water inlet and Central Heating System See 37 on piping diagrams in previous section Open each radiator air release tap starting with the lower point and close it only when clear water free of...

Страница 37: ...w 19 Figure 15 5 on the Outlet Pressure Test Point of the Gas Valve and connect a pressure gauge using a suitable hose E 19 20 Figure 15 5 Set the d h w and c h temperature control knobs to their maxi...

Страница 38: ...pressure adjustment F in Fig 15 6 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 6 Start t...

Страница 39: ...15 10 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 selec...

Страница 40: ...ss 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 labels on the boiler Use...

Страница 41: ...ice switch and the boiler on off switch 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...

Страница 42: ...3 Figure 16 2 Remove the connections of the ignition and detection electrodes Remove the burner 37 moving it to the left rotating it upward and then pulling it outside the combustion chamber follow th...

Страница 43: ...iven in section 15 5 of this manual Set the correct gas pressure for central heating output required Stick on the inside of the left hand side panel adjacent to the data badge the self adhesive label...

Страница 44: ...s 17 2 Dismantling the external panels Front Panel Loosen the three screws A Fig 17 1 Lift and remove the panel Side Panels Loosen the screws B Figure 17 1 and C Figure 17 2 Bring the bottom of the pa...

Страница 45: ...See also section 13 2 page 26 of this manual If the pressure should be lower take steps to correct the pressure level 17 8 Checking the magnesium anode To guarantee protection of the storage tank fro...

Страница 46: ...horizontal run of the pipe first by simply pushing the parts together Push the vent adapter down onto the top of the boiler and reinstall the four Phillips head screws To check the pressure at the ve...

Страница 47: ...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 adapter J Separate flu...

Страница 48: ...ake 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 C...

Страница 49: ...ion collar hardware E Roof venting exhaust gasket F Roof venting exhaust adapter G Roof venting intake adapter H Roof venting intake gasket I Roof venting boiler adapter exhaust gasket J Roof venting...

Страница 50: ...______________________________ Performance Tests GROSS STACK TEMPERATURE __________________ ROOM TEMPERATURE AMBIENT ________________ NET STACK TEMPERATURE _____________________ CO2 __________________...

Страница 51: ......

Страница 52: ...1796212111 17962 1211 1 2906 44A4 USA...

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