Instruction/ maintenance manual of the product WALL HUNG GAS BOILER Verona
Go to page of 40
Riva HEAT ONLY WALL HUNG GAS BOILER FOR CENTRAL HEATING SUPPLY BOILER INSTALLATION, OPERATION INSTRUCTIONS Please Read Instructions Carefully Save for Future Reference — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
RIVA HEAT ONLY MANUAL - REV A 2.
Dear Customer: Thank you for buying a Biasi Riva Heating Only Boiler System. The Riva Heating Only is a high efficiency, non-condensing, wall mounted gas boiler which provides central heat supply water. We realize that it is not possible to answer all questions about the Riva boiler system in this manual.
Table of Contents Section Title Section Number Page Number Warnings - 6-7 Important Information - 8 General Information 1 9 Technical Information (M130.
Table of Contents Section Title Section Number Page Number Manifold Piping with Zone Valves or Circ. 14.3 29 Commissioning 15 30-35 Initial Filling of the System 15.1 30 Lightning the Boiler 15.2 30 Checking the Gas Pres. at the Burner 15.3 31 Adjustment of the Gas Pressure 15.
Boiler is certified as an indoor appliance. Do not install boiler outdoors or locate where it will be exposed to freezing temperatures. W ARNING — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
Any appliance that burns natural gas, propane gas, fuel oil, wood or coal is capa ble of producing carbon monoxide (CO). Carbon Monox ide (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.
IMPORTANT INFORMATION Please read this page carefully. • ALL BOILERS MUST BE INSTALLED IN ACCORD ANCE WITH NATIONAL, STATE AND LOCAL PLUMBI NG, HEATING AND ELECT RICAL CODES AND ORDINANCES, AS WELL AS THE REGULATIONS OF THE SERVING ELECTRICAL, WATER AND GAS UTILITIES.
1. General Information The Riva Heat Only is a high efficiency, non-condensing, wall mounted gas boiler which provides central heat. 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 page 11.
2.Technical Information Cont. 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.
3. Parts List Primary Components : 2 4 3 7 5 8 9 6 10 12 16 14 11 15 18 19 13 20 26 1 1 Pump 2 Pump vent plug 3 Automatic air purger valve 4 Modulation gas valve 5 Flame-detecting electrode 6 Ignition electrodes 7 Burner 8 Combustion chamber 9 Primary heat exchanger 10 Fan 11 Air pressure switch 12 Air switch pres.
4. Internal Piping & Parts List 23 11 25 24 20 9 6 15 1 4 16 3 22 17 10 5 18 14 27 7 21 28 29 30 19 31 Note : Pressure Relief Valve (#19) should be piped to a drain or to the floor as lose as possible to a drain.
5. Electric Diagrams ye bk wh gy bu rd bk gy gy gy M ~ t 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 gy gnye bu bk bk bu bu bu bu rd.
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.
7. Exhaust Pipe Location CAUTION EXTERNAL VENT SURFACES ARE HOT. The Exhaust Hood must be installed on the leeward side of house and conform to the following guidelines: 1. The Vent hood shall not be less than 3 feet above any forced air inlet to the house.
8. Mounting Bracket After a suitable installation location is chosen, verify that the mounting wall is properly braced and strong enough to support the 80 pound weight of the unit when filled with water.
9. Venting The Riva is a mechanical draft, side wall vented boiler. There are two flue options available - separate and coaxial. The coaxial option has one configuration shown on the next page. The separate option has two possible configuratio ns shown on the following pages.
9. Venting Cont. 9.3 Choice of flue : The following flue kits are available for connectin g to the boiler: A Standard coaxial horizontal flue kit (Exhaust & intake outside) Figure 9.
9. Venting Cont. B Standard separate horizontal flue kit (Exhaust & intake outside) Figure 9.4 (Twin pipe φ 3.25 in) Various twin (split) pipes kits and optional accessories (elbow s) are available to assist in the termination of the flue where the boiler is installed in a locat ion remote to an outside wall.
9. Venting Cont. C Alternative separate kit (Exhaust outside & intake inside) 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 9.5 (Twin Pipe Φ 3.
10. Pipe Connections The Riva boiler is supplied with a 3/4” stainless steel gas pipe (A in figu re 10.1), 2 - 3/4” copper pipe (C,D in figure 10.1), located in a plastic bag in the boiler package. A B C D E Figure 10.1 A) Stainless steel gas pipe B) Main circuit drain cock C) C.
11. Gas Pipe Connections Gas supply piping is to be sized and installed p roperly 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.
12.1 Power Connection: A A 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 B B C C B B Figure 12.2 Removing Control Panel: • Remove screws C.
12.3 Room Thermostat Connection: • The room thermostat must be connected to the terminal block situated next to the control panel 1 2 LN 3 To fused spur isolation switch Power supply terminal block External controls terminal block J 120 VAC Control Terminal Block Figure 12.
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 LN 3 To fused spur isolation switch Power supply terminal block External controls terminal block J 120 VAC Control Terminal Block Figure 12.
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 been substracted.
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. 23 11 25 24 20 9 6 15 1 4 16 3 22 17 10 5 18 14 27 7 21 28 29 30 19 Max.
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.
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.
15. Commissioning 15.1 Initial filling of the system: • Remove the front panel of the case. • Unscrew the cap on the automatic air purger valve 3 (Fig 15.
15. Commissioning Cont. 15.3 Checking the gas pressure at the burner: This boiler has been tested to the highest quality control standards. The maximum and minimum gas pressures are already set during this quality control process however the checking procedure must be followed to ensure maximum operating efficiency from the boiler.
15. Commissioning Cont. 15.4 Adjustment of the gas pressure: • Remove the front panel of the case. • Open the gas valve inlet pressure test point (16 in Fig. 15.5) at the valve input, connect a suitable pressure gauge and check the gas pressure of the supply network.
15. Commissioning Cont. 15.6 Checking the burner ignition: • Turn the boiler OFF. • Open the gas valve outlet pressure test point 15 (figure 15.5) and connect the gauge. • Turn the boiler ON positioning the function selector B in the position shown in figure 15.
15. Commissioning Cont. 15.8 Labels placement: 1 4 2 3 5 Figure 15.10 Warning: The installation is not complete unless labels supplied are placed on the boiler as shown in Figure 15.10. All the labels supplied with the boiler are numbered for reference.
15. Commissioning Cont. 15.9 Checking the flue system and combustion: • The flue system should be visually che cked for soundness. Check all clamps, gaskets and fixings are secure and tight. • Ensure that the flue terminal is site d correctly in accordance with the flue fitting instructions.
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.
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.
17. Annual Maintenance Cont. 17.5 Checking the pressurization in the expansion vessel: Empty the central heating system as described in section 17.3 of this chapter and check that the pressure in the expansion vessel is not less than 1 bar (14.5 psi).
18. Installer Notes System Checkout: Boiler Model No.___________________ Original Purchaser: ___________________________ ___________________________ ___________________________ Serial No.
*1796212741* 17962.1274.1 2906 (40A4)USA.
An important point after buying a device Verona WALL HUNG GAS BOILER (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Verona WALL HUNG GAS BOILER yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Verona WALL HUNG GAS BOILER - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Verona WALL HUNG GAS BOILER you will learn all the available features of the product, as well as information on its operation. The information that you get Verona WALL HUNG GAS BOILER will certainly help you make a decision on the purchase.
If you already are a holder of Verona WALL HUNG GAS BOILER, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Verona WALL HUNG GAS BOILER.
However, one of the most important roles played by the user manual is to help in solving problems with Verona WALL HUNG GAS BOILER. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Verona WALL HUNG GAS BOILER along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
