Verona WALL HUNG GAS BOILER Installation Manual

BOILER INSTALLATION, OPERATION INSTRUCTIONS HOT WATER SUPPLY Please Read Instructions Carefully

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 ou

3. Parts List Primary Components: 1245369710118121420181319211522162417263525 1 Pump 2 Pump vent plug 3 Automatic air purger valve 4 Modulation ga

4. Internal Piping & Parts List 29133433261181912442035162821127222318369273132630152537383940 Note: • Pressure Relief Valves (#24,

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5.1 Sequence of Operation RIVA COMBI MANUAL - REV B 14

6. Installation Location The installation location chosen must: • Comply with all clearances listed below. • Provide suitable location for the e

7. Exhaust Pipe Location CAUTION EXTERNAL VENT SURFACES ARE HOT. NOTE: USE ONLY LISTED COMPONENTS SUPPLIED WITH THE BOILER.SURFACE DISC

condensate from the flue gases 8. Mounting Bracket After a suitable installation location is chosen, verify that the mounting wall is properly br

5.33.3 3.03.7Figure 8.1 The Riva is a mechanical draft, side wall vented boiler. There are two side wall flue options available – separate and coax

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

RIVA COMBI MANUAL - REV B 2

Figura 9.1 Coaxial 2.5/4.0 Restrictor SizeFrom 1.65 to 3.30 (ft) 41 From 3.30 to 8.86 (ft) 44 Separate 3.25/3.25 Restrictor SizeFor 1.65 (in) and

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 fla

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

Test PortsExhaust CollarExhaust ElbowExhaust PipeRubber Wall Trim (2X)Exhaust Pipe End CapAir Intake ElbowAir Intake PipeAir Intake Collar Figure 9.4

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

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. Consequent

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. Exten

plastic bag in the boiler package. A) Stainless steel gas pipe FGABCD EH I JFigure 10.1 B) Main circuit drain cock C) C.h. return copper pipe D) C.h.

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

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 w

12. Electrical Connections/Wiring 12.1 Power Connection: BAB Figure 12.1 Removing Front Panel: • Remove the front panel by removing screws A and s

12. Electrical Connections/Wiring Cont. 12.3 Room Thermostat Connection: • The room thermostat must be connected to the terminal block situated

12. Electrical Connections/Wiring Cont. 12.5 Zone Valve Micro Switch Connection: • The zone valve micro switch must be connected to the termina

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 pr

14. Piping All external piping components are to be supplied by the installer. It is very important to use a Primary Secondary piping scheme whe

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 h

14. Piping Cont. 14.2 Primary – Secondary Piping with Zone Valves: All external piping components are to be supplied by the installer. It is ver

14. Piping Cont. 14.3 Manifold Piping with Zone Valves or Circulators (shown conn. to radiators): All external piping components are to be suppl

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 1

15. Commissioning Cont. 15.3 Lighting the boiler: Note: If external controls are fitted (e.g. room thermostat) ensure they "call for heat"

Table of Contents Section Title Section Number Page Number Warnings - 6-7 Important Information -

15. Commissioning Cont. 15.5 Adjustment of the gas pressure: • Remove the front panel of the case. • Open the gas valve inlet pressure test p

15. Commissioning Cont. 15.7 Checking the burner ignition: • Turn the boiler OFF. • Open the gas valve outlet pressure test point 19 (figure

15. Commissioning Cont. 15.9 Labels placement: 1423567 Figure 15.11 Warning: The installation is not complete unless labels supplied are placed

15. Commissioning Cont. 15.10 Checking the flue system and combustion: • The flue system should be visually checked for soundness. Check all cl

16. Gas Conversion WARNINGS: Procedures to adapt the boiler to the type of gas available must be carried out by a competent and responsibl

RIVA COMBI MANUAL – REV B 43ONOFF1234ONOFF1234Natural gas L.P.G. Figure 16.5 • Close the service panel. • Turn on the boiler. • Calibrate th

17. Annual Maintenance 17.1 Warnings: The procedures detailed in this chapter must be carried out only by a professionally qualified person. Thus

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

17. Annual Maintenance Cont. Clean any that is found with an appropriate sized brush. • Inspect the venture device inside the outlet of the combust

18. Vent Part Spares Part Description Order Number A Separate vent termination B Termination hardware C Wall gask

Table of Contents Section Title Section Number Page Number Manifold Piping with Zone Valves or Circ. 14.3 29 Comm

18. Vent Part Spares Cont. Part Description Order Number A Coaxial intake pipe B Coaxial termination pipe C Coaxi

18. Vent Part Spares Cont. Part Description Order Number A Roof flashing kit (pitched or flat) B Roof venting termination C Roof venting

RIVA COMBI MANUAL - REV B 49

RIVA COMBI MANUAL - REV B 47 18. Installer Notes System Checkout: Serial No.____________ Boiler Model No.___________________ Installer: Origin

*1796212111* 17962.1211.1 2906 (44A4)USA

Installer Notes 18 41 Boiler is certified as an indoor appliance. Do not install boiler outdoors or locate wher

• Stale or smelly air. • The presence of soot or carbon in or around the appliance. • Very high

IMPORTANT INFORMATION Please read this page carefully. • ALL BOILERS MUST BE INSTALLED IN ACCORDANCE WITH NATIONAL, STATE AND LOCAL PLUMBING, HEAT

The Riva Combi is a high efficiency, non-condensing, wall mounted gas boiler which provides central heat and domestic hot water. The boiler feat