USER MANUAL AND INSTRUCTIONS Riva PLUS WALL HUNG GAS BOILER FOR CENTRAL HEATING SUPPLY Please Read Instructions Carefully Save for Future Reference WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. — WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance.
Dear Customer: Thank you for buying a Biasi Riva Plus Boiler System. The Riva Plus is a high eff ciency condensing, wall mounted gas boiler which provides central heat. We realize that it is not possible to answer all questions about the Riva boiler system in this manual. Reading this installation manual does not make the reader an expert in all aspects of installation and operation, and does not replace the need for a quali f ed, licensed heating contractor.
Table of Contents Section Title Warnings Important Information General Information Technical Information Appliance Description Operation Lights Instructions for Use Warnings Ref lling Procedure Lighting/Operation Instruction Central Heating Circuit Temp. Extinguishing Instructions Useful Advice Central Heating Frost Protection Periodic Maintenance External Cleaning Operational Faults Warranty RIVA PLUS USER MANUAL Section Number 1 2 3 4 5 5.1 5.2 5.3 5.4 5.5 6 6.1 6.2 6.3 6.4 6.
WARNING Boiler is certif ed as an indoor appliance. Do not install boiler outdoors or locate where it will be exposed to freezing temperatures. WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. — WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance.
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 which is odorless, colorless and tasteless but is very toxic. CO is lighter than air and thus may travel throughout the building. BRIEF EXPOSURE TO HIGH CONCENTRATIONS OF CO, OR PROLONGED EXPOSURE TO LESSER AMOUNTS OF CO MAY RESULT IN CARBON MONOXIDE POISONING.
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 by competent contractors, and only persons knowledgeable in the layout and installation of heating systems should attempt the installation of any boiler.
1. General Information The Riva Recuper is a high ef f ciency condensing, wall mounted gas boiler which provides central heat. The boiler features a gas valve which modulates the energy input from 49476 BTU/h to 116008 BTU/h. The boiler is shipped fully assembled. All units are pressure and combustion tested at the factory prior to shipping. Key Features: • Wall mountable - saving valuable f oor space.
2. Technical Information Cont. ENERGY CAPACITY Nominal heat input (0/2000ft) Nominal heat input (2000/4500ft) Minimum heat input Maximum useful output (0/2000ft) Maximum useful output (2000/4500ft) Minimum useful output INJECTORS MBH 116.0 MBH 110.2 MBH 49.5 MBH 102.0 MBH 97.2 MBH 41.6 GAS SUPPLY PRESSURE Gas Natural 14 130 Propane 14 85 GAS FLOW RATE Gas Min Max Natural ft³/h 48.7 115.1 Propane lb/h 2.23 5.
3. Appliance Description 3.1 Overview: 1 Case front panel 2 Control panel 3 Control panel cover 3.2 Control Panel: 1 4 Central heating circuit temperature and pressure gauge 5 Lock-out signal lamp 6 Boiler reset button 7 Function switch and Central heating temperature adjustment knob 8 Appliance operation lights 8 7 2 3 Figure 3.1 6 5 4 Figure 3.2 3.3 Piping Connections: 9 10 11 12 13 C.h.
4. Operation Lights Three lights (8 in Fig. 3.2) give detailed indication regarding the operation of the boiler . The following table gives the relationship between each of the possible light combinations and their meaning. A short pulse every 4 seconds: stand-by condition Function position. Anti-freeze system active selector in 1 second pulse every 2 seconds: normally operating boiler.
5. Instructions For Use 5.1 Warnings: • In order to guarantee safety and correct operation, it is essential that all the tests are carried out by a competent and responsible licensed service person before lighting up the boiler. • The tests are described in the installation, operation and service instructions manual in Section 15 Commissioning. • Ensure that the Central Heating circuit is regularly f lled with water checking that the pressure indicated on the temperature and pressure gauge (4 on f gure 3.
5. Instructions For Use Cont. 5.3 Lighting/Operating Instructions: Warnings: Do not attempt to start the boiler unless all cleanout doors are secured and sealed. Do not attempt to light the burner by hand. 1 Check that the cocks connected to the gas inlet pipe and to the supply cold water inlet pipe (see section 3.3 for pipes) are open. 2 Turn on the electricity supply to the boiler, switching on the circuit breaker . The appliance operation light A (f gure 5.
5. Instructions For Use Cont. Adjustment: • In order to achieve optimal settings for economy and comfort, we recommend adjusting the operating temperature of the central heating water according to the outside temperature, positioning the knob as in f gure 5.4 • Your installer may have installed additional energy saving equipment and will be able to recommend the most suitable adjustment for your system. • The temperature and pressure gauge (Fig. 5.
6. Useful Advice 6.1 Central Heating: • For reasonably economical service install a room thermostat. • Never shut of f the radiator in the area B where the room thermostat is installed. • If a radiator (or a convector) does not heat up, check that no air is present in it and that its valve is open. • If the ambient temperature is too high, do not alter the radiator valves. Reduce the central heating temperature instead by means of the room thermostat and the knob (B in Fig. 6.1). • • • • Figure 6.1 6.
6. Useful Advice Cont. 6.4 External Cleaning: • Before performing any cleaning, disconnect the appliance from the electrical mains, using the dedicated circuit breaker or serviceman’s switch located adjacent to the appliance. • To clean the external panels, use a cloth soaked in soapy water. Do not use solvents, abrasive powders or sponges. • Do not carry out cleaning of the appliance and/or its parts with readily f ammable substances (for example petrol, alcohols, naphtha, etc.). 6.
6. Useful Advice Cont. If water comes out of the pressure relief valve pipe 3 in Fig. 6.3: • Check on the temperature and pressure gauge (f gure 5.1 on page 1 1) that the pressure in the central heating circuit is not close to 3 bars (43.5 psi). In this case, temperature rise in the circuit can cause the pressure relief valve to open.
Warranty For RIVA Residential Wall Hung Gas Boilers FIRST 2 YEARS-WARRANTY FOR RIVA SERIES RESIDENTIAL HOT WATER BOILERS: QHT warrants that itswall hung boiler and casing are free from defects in material and workmanship for 2 years from the date of installation. If any part on the boiler is found to be defective within this period, QHT will replace the part free of charge.
RIVA PLUS USER MANUAL
RIVA PLUS USER MANUAL 19
N 16/06 2008 17962.1356.
