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Finned copper tube gas boilers & water heaters – Boiler Manual

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All aspects of the boiler/water heater installation must conform to 

the requirements of the authority having jurisdiction, or, in the 

absence of such requirements, to the National Fuel Gas Code, ANSI 

Z223.1/NFPA 54-latest revision. Where required by the authority 

having jurisdiction, the installation must conform to the Standard 

for Controls and Safety Devices for Automatically Fired Boilers, 

ANSI/ASME CSD-1.

In Canada, the installation must be in accordance with the require-

ments of CSA B149.1 or .2, Installation Code for Gas Burning 

Appliances and Equipment.

If installed in the Commonwealth of Massachusetts, you MUST 

FOLLOW the additional instructions contained in RBI’s instruction 

sheet MACODE-3. Which is located in the back of this manual.

The owner should maintain a record of all service work performed 

with the date and a description of the work done. Include the name 

of the service organization for future reference.

Direct all questions to your RBI distributor or contact the  

RBI Customer Service Department at: 260 North Elm Street, 

Westfield, MA 01085 for US or 7555 Tranmere Drive, Mississauga 

ONT L5S 1L4 for Canada. Always include the model and serial 

numbers from the rating plate of the boiler/water heater in question.

RATINGS & CAPACITIES

 

Before undertaking the installation of the Futera III Series boiler/

water heater check the rating plate to ensure that the unit has been 

sized properly for the job. The “Net I=B=R Ratings” specify the 

equivalent amount of direct copper radiation that the unit can supply 

under normal conditions. Also ensure that the unit has been set 

up for the type of gas available at the installation site. Other important 

considerations are the availability of an adequate electrical supply, 

fresh air for combustion and a suitable chimney or vent system.

BOILER/WATER HEATER LOCATION 

1.   This boiler/water heater is suitable for indoor and oudooor 

installations. Locate the boiler/water heater in an area  

that provides good access to the unit. Servicing may  

require the removal of jacket panels. Allow the minimum 

clearances between adjacent construction and the boiler/water 

heater as listed in Table 1. 

 Service clearances are not mandatory, but are 

recommended to ensure ease of service should it be 

required.

Table 1 

Clearance to
Combustibles

  Service

Clearance

  

in

mm

in

mm

Top

6 

153

30 

762

Back

6

153

24 

610

Left Side

6

153

12 

306

Right Side

6 

153

12

306

Front

6

153

30

762

2.   An optimum site will be level, central to the piping system, close 

to a chimney or outside wall and have adequate fresh air for 

combustion. Ensure that the boiler/water heater is level from 

front to back and from side to side. Use metal shims to level 

the boiler/water heater. Electrical and electronic components 

must also be protected from exposure to water during operation 

and maintenance. DO NOT install this boiler/water heater in 

a location that would subject any of the gas ignition components 

to direct contact with water or excessive moisture during 

operation or servicing. 

3.   Ensure that the floor is structurally sound and will support the 

weight of the boiler/water heater.

  The Futera III may be installed directly on combustible 

flooring, but never on carpeting.

4.   Locate the boiler/water heater in an area that will prevent water 

damage to adjacent construction should a leak occur or during 

routine maintenance.  If such a location doesn’t exist, a suitable 

drain pan that’s adequately drained must be installed under the 

unit.

5.   DO NOT place this boiler/water heater in a location that would 

restrict the introduction of combustion air into the unit or 

subject it to a negative pressure, see “GENERAL VENTING 

GUIDELINES”.

6.   NEVER place this boiler/water heater in a location that would 

subject it to temperatures at or near freezing, see the “FREEZE 

PROTECTION” section on page 13.

  Never store combustible materials, gasoline or any 

product containing flammable vapors or liquids in the 

vicinity of the boiler/water heater. Failure to comply 

with this warning can result in an explosion or fire 

causing extensive property damage, severe personal 

injury or death!

COMBUSTION AIR & VENTILATION

 This boiler/water heater must be supplied with 

combustion air in accordance with Section 5.3, Air 

for Combustion & Ventilation, of the latest revision 

of the National Fuel Gas Code, ANSI Z223.1/NFPA 

54 and all applicable local building codes. Canadian 

installations must comply with CAN/ CGA B149.1 

or .2 Installation Code for Gas Burning Appliances 

and Equipment, or applicable provisions of the local 

building codes. Failure to provide adequate combustion 

air for this boiler/water heater can result in excessive 

levels of carbon monoxide which can result in severe 

personal injury or death!

To operate properly and safely this boiler/water heater requires a 

continuous supply of air for combustion. NEVER store objects on 

or around the boiler/water heater!

Summary of Contents for Futera II Modulation

Page 1: ...g construction Construction dust and particulate particularly drywall dust will cause contamination of the burner resulting in possible severe personal injury death or substantial property damage The...

Page 2: ...it can cause excessive amounts of carbon monoxide resulting in severe personal injury or death DESIGNED AND TESTED ACCORDING TO A S M E BOILER AND PRESSURE VESSEL CODE SECTION IV FOR A MAXIMUM ALLOWAB...

Page 3: ...in mm Top 6 153 30 762 Back 6 153 24 610 Left Side 6 153 12 306 Right Side 6 153 12 306 Front 6 153 30 762 2 An optimum site will be level central to the piping system close to a chimney or outside w...

Page 4: ...within 12 in 305 mm of but not less than 3 in 76 mm from the top of the enclosure The bottom opening must be within 12 in 305 mm of but not less than 3 in 76 mm from the bottom of the enclosure Where...

Page 5: ...sized to provide a negative draft of 03 in 0 8 mm to 1 in 2 5 mm W C at the flue outlet Common positive pressure vent systems are not to be used Improper installation can result in excessive levels of...

Page 6: ...The bottom of the vent terminal s shall be located at least 5 ft 1 5 m above the air intake terminal s unless there is a minimum 5 ft 1 5 m horizontal separation between them Avoid terminal locations...

Page 7: ...t and combustion air ter minals must be installed on the same plane outside wall in order to prevent pressure differences due to prevailing winds Incoldclimates double wallorinsulatedinletpipe recomme...

Page 8: ...s Boiler Manual 8 Figure 3 Vertical Air Intake and Venting for a Direct Vent System Category IV Figure 4 Combination Direct Vent Systems Category IV 10 FT 3 1 m 4 FT 1 2 m 5 FT 1 5 m 1 5 FT 0 5 m 5 1...

Page 9: ...y into a listed metal chimney system Figures 7 9 Thechimneymustprovideanegativepressurenotgreaterthan0 10 in 2 5 mm W C at the boiler water heater flue collar with the unit running The Futera III when...

Page 10: ...at 3 ft 0 9 m intervals with overhead hangers Use a single wall stainless steel vent pipe the same diameter as the flue collar to connect the boiler water heater to a masonry chimney When using a list...

Page 11: ...e 9 Vertical Venting Using a Lined Masonry Chimney Category II Figure 11 Multiple Outdoor Units Figure 8 Vertical Venting Using a Lined Masonry Chimney Category I Figure 10 Outdoor Venting Category IV...

Page 12: ...nstall s et les autres espaces du b timent Mettre en marche les s cheuses tous les appareils non raccord s au syst me d vacuation commun et tous les ventilateurs d extraction comme les hottes de cuisi...

Page 13: ...pe of valve between the boiler waterheaterandthereliefvalveoranexplosioncausing extensive property damage severe personal injury or death may occur Flow Switch The flow switch supplied with the boiler...

Page 14: ...heater for proper wiring connections Expansion Tank Air Separator An expansion tank or other means to control thermal expansion must be installed in the heating system An expansion tank must be insta...

Page 15: ...urn temperature 7 For HeatNet operation a sensor is required and installed at a minimum of 12 from primary loop tee supplied Notice These drawings show suggested piping configuration and valving Check...

Page 16: ...rs furnished with factory mounted outlet water temperature gauge 4 Boiler pump purging required Use terminals supplied 5 Secondary loop pipe diameter must be sized large enough to handle maximum flow...

Page 17: ...nd by maintaining the pH between 5 and 9 Follow the conditions listed under NORMAL in the table In some areas of the country additional precautions must be observed due to unusual charac teristics of...

Page 18: ...Finned copper tube gas boilers water heaters Boiler Manual 18 Table 9 Futera III Heat Exchanger Selection Graph Table 10 Futera III Pumping Performance Requirement...

Page 19: ...ed pump max pipe length 30 ft total 6 90 elbows full pipe size 5 CAUTION MEASURE WATER HARDNESS AND pH AT JOB SITE 6 The pH and water hardness must be measured before selecting heat exchanger and pump...

Page 20: ...at the bottom of the vertical section of the gas supply pipe upstream of the gas controls A ground joint union should be installed between the boiler gas controls and the supply piping Each of these i...

Page 21: ...s installed oudoors The wire size must be compatible with the total amp draw of the circuit Refer to the wiring diagram supplied with the boiler water heater for proper wiring connections and boiler f...

Page 22: ...il a t plong dans l eau m me partiellement Faitesinspecterl appareilparuntecnicienqualifi et remplacez toute partie du syst me de contr le et toute com mande qui ont t plong s dans l eau Operating Ins...

Page 23: ...Nat Gas Category II and IV Firing rate 500 750 1000 1250 1500 1750 2000 Signal Inches wc Signal Inches wc Signal Inches wc Signal Inches wc Signal Inches wc Signal Inches wc Signal Inches wc 100 2 2 4...

Page 24: ...off all electric power to the boiler if service is to be performed 3 Close the manual main and pilot gas shut off valves COMMENT COUPER L ADMISSION DE GAZ DE L APAREIL 1 R glez le thermostat la temp...

Page 25: ...when the boiler is firing at full rate Low gas pressure could indicate undersized gas line or insufficient gas supply Static and operating gas pressure required at the gas valve inlet is between 2 W...

Page 26: ...Finned copper tube gas boilers water heaters Boiler Manual 26 RBI FIELD WIRING TO HEATNET BOARD Figure 22 RBI Field Wiring to HeatNet Board Board Revision 3 0 and greater...

Page 27: ...n be used to control HeatNet equipped boilers Method 1 A 4 20mA signal can be used to directly modulate each boiler from a remote panel or building management system On multiple boiler installations t...

Page 28: ...y will also list faults should the unit fail to operate An explanation of each status message and fault can be located in HeatNet Control Manual under status screen fault display section STATUS SCREEN...

Page 29: ...ock is located on J11B SPARE 4 FAULT SYSTEM SET 160 F INTERLOCK SPARE 4 FLOW SWITCH ERROR Once the FIII series boiler receives a call for heat it closes the circulator pump relay It then waits 10 seco...

Page 30: ...ET 160 F OPEN OUTSIDE SENSOR SHORTED SENSOR If the shorted sensor fault is displayed thesensorinthepositionreportedwasoriginallydetected but has since shorted The boiler will shut down on any SHORTED...

Page 31: ...osits indicate condensation due to low return water temperatures In either case the heat exchanger must be cleaned thoroughly and the problem resolved before the boiler water heater is returned to ser...

Page 32: ...qualified service technician to have it inspected NEVER try to clean or repair the relief valve If the valve fails to operate properly have it replaced 5 Theaquastathighlimitcontrolsthemaximumwaterte...

Page 33: ...entify which interlock has tripped Reset the Interlock or check for disconnected wiring or shorts The Air Pressure from UV Sensor interlock if displayed will allow the boiler to function but it needs...

Page 34: ...Finned copper tube gas boilers water heaters Boiler Manual 34 Figure 25 Exploded View REPAIR PARTS...

Page 35: ...Finned copper tube gas boilers water heaters Boiler Manual 35 REPAIR PARTS CONTINUED RIOM 74 REV E...

Page 36: ...4 2 2 2 2 2 2 2 19 Flange 1 Outlet 11 0228 1 1 1 1 Flange 1 1 2 Outlet 11 0229 1 1 1 NS Orifice Gasket 06 0022 1 1 1 1 1 1 1 NS Gas Injectors NG 10 1009 1 1 1 1 Gas Injectors NG 10 1002 1 1 1 Gas Inje...

Page 37: ...1 1 1 1 Tridicator 75 160 psi 13 0305 1 1 1 1 1 1 1 46 Heat Exchanger Assembly Copper 70 2515 1R 1 Cast Iron prior to 0209 must replace 70 2516 1R 1 combustion chamber top panel 36 70 2517 1R 1 70 25...

Page 38: ...2 2 2 NS 10K Temperature Sensor 14 0325 3 3 3 3 3 3 3 50 Transformer 50 VA 15 0007 1 1 1 1 1 1 1 51 Purge Timer ST7800 16 0007 1 1 1 1 1 1 1 52 Spark Generator Q652B 16 0036 1 1 1 1 1 1 1 53 Flame Saf...

Page 39: ...0102 1 1 1 1 1 1 1 81 Pilot Orifice 052 NG 10 0140 1 1 1 1 1 1 1 Pilot Orifice 040 LP 10 0139 1 1 1 1 1 1 1 82 Mini Peeper C7027A 16 0009 1 1 1 1 1 1 1 83 Spark Plate Gasket 06 0102 1 1 1 06 0037 1 1...

Page 40: ...he electrical panel Disable any external call for heat and toggle the remote local switch to REMOTE 1 Toggle the LOW FIRE switch to cycle the boiler then hold at trial for pilot ignition 2 Set pressur...

Page 41: ...TWEEN THE HEATER INLET AND OUTLET IS CRITICAL TO PROPER FLOW BEFORE YOU LEAVE THE JOBSITE YOU MUST RECORD THE DELTA T THIS READING SHOULD NOT EXCEED 35 F 19 4 C NOR BE LOWER THAN 20 F 11 2 C DELTA T C...

Page 42: ...the horizontally vented gas fueled heating appliance or equipment The sign shall read in print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL OBSTRUCTIONS g INSP...

Page 43: ...ubes caused by high water velocity through the tubes and is not covered by the manufacturer s warranty See Installation Instructions for proper pump performance Chemical corrosion no corrosive chemica...

Page 44: ...right 2014 Mestek Inc 260 North Elm Street 7555 Tranmere Drive Westfield MA 01085 Mississauga Ontario L5S 1L4 Canada Phone 413 568 9571 Phone 905 670 5888 Fax 413 568 9613 Fax 905 670 5782 www rbiwate...

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