Granby B*G-3 Installation, Operation And Service Manual

Cast iron gas-fire

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Installation, Operation and
Cast Iron Boiler
Gas-Fire
B*G-3 sections
B*G-4 sections
B*G-5 sections
B*G-6 sections
B*G-7 sections
B*G-8 sections
* = Brand name, G=Gas
INSTALLATIONS MUST MEET ALL LOCAL AND FEDERAL
THE FOLLOWING PAGES INCLUDES WARNINGS, INSTALLATION AND MAINTENANCE
INSTRUCTIONS SPECIFIC TO GAS-FIRED UNITS. PLEASE REVIEW THIS MANUAL
CAREFULLY IF YOUR BOILER IS NATURAL GAS-FIRED OR PROPANE GAS-FIRED
Please read the manual in its entirety before beginning installation.
This manual must be kept with the boiler for future reference.
GRANBY FURNACES INC.
PO Box 637
12118 Hwy 209
Parrsboro Nova Scotia Canada
B0M 1S0
www.granbyindustries.com
Service Manual
SERIES
CODES THAT MAY DIFFER FROM THIS MANUAL
04-07-2015
B*G, 3 sections illustration
G2014-E5G Rev. D

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Summary of Contents for Granby B*G-3

  • Page 1 Installation, Operation and Service Manual Cast Iron Boiler SERIES Gas-Fire B*G-3 sections B*G-4 sections B*G-5 sections B*G-6 sections B*G-7 sections B*G-8 sections * = Brand name, G=Gas B*G, 3 sections illustration INSTALLATIONS MUST MEET ALL LOCAL AND FEDERAL CODES THAT MAY DIFFER FROM THIS MANUAL THE FOLLOWING PAGES INCLUDES WARNINGS, INSTALLATION AND MAINTENANCE INSTRUCTIONS SPECIFIC TO GAS-FIRED UNITS.
  • Page 2 WARNING: If the information in this manual is not followed exactly, a fire or explosion may result, causing property damage, personal injury or death. Do not store or use gasoline or other flammable vapors or liquid in the vicinity of this or any other appliance. WHAT TO DO IF YOU SMELL GAS o Do not try to light the appliance, o Do not touch any electrical switch;...
  • Page 3: Table Of Contents

    TABLE OF CONTENTS B*C - Gas IMPORTANT SAFETY ADVICE PRODUCT INFORMATION UNIT INSTALLATION PLACEMENT & LEVELING OF THE UNIT JACKET ASSEMBLY & CONTROL INSTALLATION PIPING ELECTRIC WIRING CHIMNEY INFORMATION FUEL SYSTEM 7.1GAS-FIRED BOILERS ACCESSORY INSTALLATION BURNER INSTALLATION & SETTING 9.1 GAS-FIRED BOILERS 9.2 GAS-FIRED BOILERS LIGHTING INSTRUCTIONS 10.0 TECHNICAL INFORMATION...
  • Page 4: Important Safety Advice

    1.0 IMPORTANT SAFETY ADVICE Please read and understand this manual before installing, operating or servicing the furnace. To ensure you have a clear understanding of the operating procedures of the appliance please take the time to read section IMPORTANT SAFETY ADVICE of this manual. THE INSTALLATION OF YOUR GAS-FIRED BOILER MUST CONFORM TO THE REQUIREMENT OF THE AUTHORITY HAVING JURISDICTION OR IN THE ABSENCE OF SUCH REQUIREMENTS, TO THE NATIONAL FUEL GAS CODE ANDSI Z223.1/NFPA 54...
  • Page 5: Product Information

    2.0 PRODUCT INFORMATION PHYSICAL DIMENSIONS Length : ( 3 sections 18 7/8 ‘’ ) ( 4 sections 22 1/2’’ ) ( 5 sections 26 ¼’’ ) ( 6 sections 31 1/8’’ ) ( 7 sections 35 ½’’) ( 8 sections 39 ¼’’) CLEARANCE Proper clearances must be maintained not only from combustible materials but also to provide adequate access for servicing.
  • Page 6: Unit Installation

    FLUE PIPE CONNECTION Gas Fired boilers (CHIMNEY ONLY applications) CLEANOUTS Rear removable smoke hood cover & Combustion Front Door Opening FUEL Gas Fired Natural Gas or Liquefied Petroleum Gas ELECTRICAL CANADA : 120 Volts, 60Hz,15 amps fuse or breaker USA : 13.3 amps, circuit protection 20 amps. AIR SUPPLY CAUTION: Adequate air supply for both combustion and ventilation must be available.
  • Page 7 STEP 1 VERIFY CONTENTS OF JACKET ASSEMBLY PACKAGE. Your jacket assembly will contain two (2) manifolds with gaskets, a fastening package which includes all necessary bolts, screws, nuts and washers for assembly along with burner studs, nuts and washers, block insulation, rear of block insulation, aluminum faced tape, levelling frame rails, two (2) side panels, a rear panel top panel and re-insulated top and bottom front panels STEP 2...
  • Page 8 STEP 4 INSULATION INSTALLATION Drape the large piece of block insulation directly over the block taking care to provide adequate clearance from frame rails. Using the aluminum faced tape attach the preshaped rear inslulation to the block insulation. The process is simply taping the two pieces together. The front panels come pre-insulated.
  • Page 9 STEP 6 CONTROL SENSOR ATTACHMENT Prior to jacket top and front panel installation the control sensor must be inserted into the brass well located on the top of the boiler and secured by a clip. Feed the sensor through the hole on the front of the right side panel from the outside.
  • Page 10: Piping

    The boiler is now ready for piping and connection to the fuel system, heating and domestic hot water, thermostat and 110 Volt - 60Hz power source. CAUTION: Safety or relief valve discharge should be piped downward to within 6” of the floor or to a drain. The valve must be mounted in a vertical position. 4.0 PIPING Prior to connecting the B*C/G boiler to an existing piping system, certain procedures must be followed.
  • Page 11 Figure 1 A typical installation with no domestic hot water and no by-pass loop installed. Figure 2 A typical installation with no domestic hot water and with a by-pass loop installed.
  • Page 12 Figure 3 A typical installation with domestic hot water supplied by an indirect heater and with no by-pass loop installed. Figure 4 A typical installation with domestic hot water supplied by an indirect heater and with a by-pass loop installed.
  • Page 13: Electrical Wiring

    PIPING INSTRUCTIONS SPECIFIC TO GAS FIRED BOILERS • A hot water boiler installed above radiation level or as required by the authority having jurisdiction, must be provided with a low water cut off device either as part of the boiler or at the time of boiler installation. •...
  • Page 14 National electrical code ANSI/NFPA 70 and/or the Canadian electrical code Part 1, CSA 22.1, electrical code as applicable. • Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. The connections must be made in a manner to insure that there is no crossing of the neutral with the phase, a proper ground shall be provided and all three wires shall be connected to the operating control.
  • Page 15: Chimney Information

    6.0 CHIMNEY INFORMATION Natural Draft Applications CAUTION: Gas fired units must always be connected to flues with proper draft. Specific guidelines should be followed to prevent the occurrence of the following conditions: • Reverse flow of flue gas during or after burner shutdown. •...
  • Page 16 If the masonry, brick, block chimney or tile chimney liner is in poor condition, a new chimney liner rated for oil may have to be installed. In the event the condition still exists after installation of a new liner consult Granby Furnaces Inc. SPECIFIC TO GAS FIRED BOILERS...
  • Page 17 4. Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostat operation appliance will operate continuously. 5. Test for spillage at the draft regulator outlet / draft hood opening after 5 minutes of main burner operation. Use the flame of a match or candle, or smoke from a cigarette, cigar, or pipe.
  • Page 18: Fuel System

    cellular core (ASTM F*891), cellular core CPVC Radel (Polyphenolsulfone) in venting systems shall be prohibited. Connecting non metallic vent pipe and fittings with thermal insulation shall be prohibited. Horizontal portions of the venting system shall be supported to prevent sagging by installing support every 36 inches.
  • Page 19: Gas-Fired Boilers

    7.1 Gas Fired boilers The gas piping must be installed between the gas meter and the combination gas valve on the boiler. WARNING: • Connect from the gas supply to the burner combination gas valve inlet using new, clean black iron pipe and malleable iron fittings only. Do not use copper, brass, cast iron or galvanized pipe or fittings.
  • Page 20 4. GAS SUPPLY PRESSURE • Maximum supply pressure: 14 inches W.C. • Minimum supply pressure: 5” inches W.C. WARNING: • Do not expose the combination gas valve to gas pressures in excess of 14” W.C. The valve has a safety mechanism that interrupt the flow of gas over 14” W.C. In any event higher pressure could damage the valve seat, resulting in potentially hazardous conditions.
  • Page 21 • If the gas supply pressure can exceed 14 inches of water column at any time, you must install a lockup type gas pressure regulator in the gas supply piping, ahead of the main manual gas valve on the burner. •...
  • Page 22: Accessory Installation

    5) Insert the threaded tube end into the pierced hole of the flue vent pipe. 6) Install the securing nut on the safety switch tube, which protrudes into the flue vent pipe. Tighten the nut securely. Figure 1- Figure 2- BVSO wiring diagram Illustration Granby Industries Installation on Gas-Fired Heating Units (Figure 1)
  • Page 23: Burner Installation & Setting

    Wiring BVSO (Figure2) The BVSO is connected in series with the call for heat device (24Vac), typically a room thermostat or a zone valve end switch Caution: Disconnect the electrical power when wiring the unit. Wire the blocked vent switch in accordance with The National Electrical Code and applicable local codes.
  • Page 24: Gas-Fired Boilers

    9.1 Gas Fired Boilers CONSULT THE BURNER INSTRUCTION MANUAL THAT IS INCLUDED IN THE BURNER BOX. In case of differences between the instructions on the burner instruction manual and this manual, the boiler instruction manual (this manual) must be followed. The instructions in the gas burner instruction manuals are detailed mounting, wiring, adjusting, testing and maintenance instructions that are specific to the burner used (Riello or Carlin).
  • Page 25 • RIELLO GAS BURNERS o Natural Gas Maximum CO2 is 10% o Propane Gas Maximum CO2 is 12% o Maximum Air free PPM reading of CO is 200. o If any of these readings exceed the values above, adjust the air gate to increase the air intake to the burner.
  • Page 26: Gas-Fired Boilers Lighting Instructions

    9.2 GAS FIRED BOILER LIGHTING INSTRUCTIONS...
  • Page 27: Technical Information

    10.0 TECHNICAL INFORMATION • ** Honeywell control L7248 (high limit only, cool start application) 10.1 Gas Fired Boilers Riello Gas Burner...
  • Page 28: Boiler Info

    Carlin Gas Burner 10.2 Boiler Info...
  • Page 29: Boiler Start Up & Operation

    GRANBY B*G CAST IRON SERIES Shipping Appliance No. de Length Supply Outlet Return Outlet Water weight Content Model section (inches) (inches) (inches) (lbs) (gal.) 18-7/8" 1-1/4" 1-1/4" B*G – E6-0085-** 22-1/2" 1-1/4" 1-1/4" B*G – E7-0121-** 26-3/4" 1-1/4" 1-1/4" B*G –E7-0152-** 31-1/8"...
  • Page 30: L7248 Honeywell Control

    • Place this manual, the control manual and the burner manual along with related consumer information in an easily accessible location. Installers should make the consumer aware of the content and location of this information. 11.2 Honeywell control L7248 - Adjusting Settings - To discourage unauthorized changing of Aquastat settings, a procedure to enter the ADJUSTMENT mode is required.
  • Page 31: Trouble Shooting The Control

    11.3 Trouble shooting the control System Diagnostic Check Action Condition Condition Boiler is cold, Display is OFF 120 V a/c System power. Turn system power on house is cold. Display is ON 24 V a/c T-T No 24 V; replace control 24V present;...
  • Page 32: Maintenance / Service

    12.0 MAINTENANCE / SERVICE Your heating appliance is designed to be maintained and serviced only by your heating professional. The following sections provide information on maintenance and service related activities. In the event a problem occurs consult your heating professional Model # Of Baffles Pass...
  • Page 33: Cleaning The Boiler

    12.1 CLEANING THE BOILER Section cleaning should only be performed by a service technician and must only be performed when the boiler is out of service. The following steps should be followed: • Remove the 2 front panels by sliding it upwards to release and then pull to remove. •...
  • Page 34: Burner Cleaning Notes

    12.2 BURNER CLEANING NOTES Your burner manufacturer supplied instructions servicing maintenance should be performed as instructed. Riello 40 G120 Gas Burner ____________________________________ Carlin EZGas PRO Burner Burner 12.3 PERFORM COMBUSTION TEST Perform an annual combustion check on the gas burner.
  • Page 35: Exploded Parts View

    13.0 EXPLODED PARTS VIEW Exploded Parts View...
  • Page 36 Part List G*C FRONT SECTION GC PNA - POCKET FOR SENSING BULBS G*C INTERMEDIATE SECTION TAPPING WITH AIR RELIEF VALVE G*C REAR SECTION REAR CASING NIPPLE SPECIAL PIN FOR CASING ASSEMBLY STAYBOLTS FIBRE-GLASS ROPE DIA. 10 BODY INSULATION HINGE PIN FRONT DOOR (MONOBLOCK) HINGE - LEFT HAND SIDE FRONT INSULATION...
  • Page 37 Granby Furnaces Inc. manufactures a full line of oil and gas-fired boilers in its 70,000 square feet facility. Granby products are sold across Canada and the United States through a distribution network. Our team of engineers, designers and technicians continually research and develop products to go beyond the demanding specifications of today’s certifications.

This manual is also suitable for:

B*g-4B*g-5B*g-6B*g-7B*g-8

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