Smith GBX 105 Installation And Operation Instructoins Download Page 34

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INSTALLATION AND OPERATING INSTRUCTIONS

REPAIR PARTS

Repair parts are available from your installer or by contacting manufacturer. Use the
figures and tables on pages 34-39 to assist in ordering parts.

Note: Remember to include boiler model number and serial number when ordering parts.

11. REPAIR PARTS

Table 11.1: Base/Combustible Floor Pan

Base Assembly

Observation Cover Door

Base Blanket Seal

Combustible Floor Pan Assembly

Item

No.

Description

7800

51771

50867

90700

7804

51771

50867

90704

7803

51771

50867

90703

7802

51771

50867

90702

7801

51771

50867

90701

Specify length

Part Selection

Information

105

140

175

195

*For elevations over 2,000 feet above sea level contact manufacturer.

Figure 11.1: Base/Combustible Floor Pan

Summary of Contents for GBX 105

Page 1: ...y drywall dust will cause contamination of theburner resultinginpossibleseverepersonalinjury deathorsubstantialpropertydamage Theboilercanonlybeoperatedwithadust free air supply Follow the instruction...

Page 2: ...WEEKLY WITH BOILER IN USE 31 D MONTHLY WITH BOILER IN USE 31 E ANNUALLY BEFORE START OF HEATING SEASON 32 10 BOILER DIMENSIONS RATINGS 33 11 REPAIR PARTS 34 A BASE COMBUSTIBLE FLOOR PAN 34 B MANIFOLD...

Page 3: ...e is known to be between 0 6 and 0 4 air changes per hour If the air infiltration rate is known to be below 0 4 then the Known Air Infiltration Rate Method must be used If the building in which this a...

Page 4: ...tional spaces that have a total minimum free area of 2 in2 per 1000 Btu hr 44 cm2 per 1000 W of total input rating of all equipment See Figure 1 2 for an illustration of this arrangement 4 Outdoor Com...

Page 5: ...oor air provided a The size and location of the indoor openings comply with Subsection 3 b The outdoor openings are to be located in accordance with Subsection 4 c The size of the outdoor openings are...

Page 6: ...s shall not serve both upper and lower combustion air openings where both such openings are used The separation between ducts serving upper and lower combustion air openings shall be maintained to the...

Page 7: ...ection Pipe the return to the tee Pipe the drain valve nipples and tee to the 1 1 4 NPT return tapping as shown in Figure 3 1 3 Supply Piping Pipe the supply to the 1 1 2 NPT supply tapping at the top...

Page 8: ...oiler water during the cooling cycle 9 If this boiler is installed above radiation level provide a low water cutoff device either as a part of the boiler or at the time of boiler installation B SAFETY...

Page 9: ...layouts 2 Run each zone pipe down then up to zone to prevent air accumulation in piping 3 If required provide means to isolate and drain each zone separately INSTALLATION AND OPERATING INSTRUCTIONS Fi...

Page 10: ...EZE PROTECTION For new or existing systems that must be freeze protected 1 Glycol in hydronic applications is specially formulated for this purpose It includes inhibitors which prevent the glycol from...

Page 11: ...in vent piping close to the boiler See the Vent Damper Installation Instructions below B VENT DAMPER INSTALLATION GENERAL 1 Do not use one vent damper to control two or more heating appliances See Fi...

Page 12: ...tch and determine there is no blockage or restriction leakage corrosion and other deficiencies which could cause an unsafe condition c Insofar as is practical close all building doors and windows and...

Page 13: ...location is shown in Figure 5 1 7 Check piping for leaks Use an approved gas detector a non corrosive leak detection fluid or other leak detection method If leaks are found turn off all gas flow and r...

Page 14: ...42 1 2 140 56 1 6 175 70 2 0 195 78 2 2 Pipe Length in Feet Meters 3 4 Pipe 1 Pipe 1 1 4 Pipe 1 1 2 Pipe 10 3 0 278 7 9 520 14 7 1050 29 7 1600 45 3 20 6 1 190 5 4 350 9 9 730 20 7 1100 31 1 30 9 1 1...

Page 15: ...controls 3 This boiler is supplied with safety devices in addition to the limit For a description of these devices and how they work to ensure the safe operation of the boiler see Section 7B 4 If the...

Page 16: ...h is closed and the flame rollout switch is closed Pilot flame is monitored through the pilot thermocouple If pilot flame is lost during a call for heat main and pilot gas flow will be shut off The va...

Page 17: ...opens the vent damper b Once the damper is proven open the ignition circuit within the gas valve energizes provided that all of the following conditions are met the blocked vent switch is closed and...

Page 18: ...18 Figure 6 4 Intermittent Ignition System Operating Sequence INSTALLATION AND OPERATING INSTRUCTIONS...

Page 19: ...19 INSTALLATION AND OPERATING INSTRUCTIONS Figure 6 5 Zone Wiring with Zone Valves Figure 6 6 Zone Wiring with Circulators...

Page 20: ...hout the system for leaks If leaks are found drain the system and repair as required 8 Connect a manometer to the gas valve on the valve outlet gas manifold Use the 1 8 NPT tapping provided 9 Confirm...

Page 21: ...fold and Burner Assembly Standing Pilot Continuous Ignition Figure 7 2 Gas Valve Manifold and Burner Assembly Intermittent Ignition Figure 7 3 Valve Tapping and Adjustment Screw Locations INSTALLATION...

Page 22: ...22 INSTALLATION AND OPERATING INSTRUCTIONS Figure 7 4 Operating Instructions...

Page 23: ...URN OFF GAS TO APPLIANCE 8 Find pilot follow metal tube from gas valve The pilot is between two burner tubes Pilot Burner 9 Turn the gas control knob counterclockwise to PILOT 10 Push in red reset but...

Page 24: ...decrease pressure clockwise to increase pressure Refer to Figure 7 3 for location of gas pressure regulator Replace the cap screw when adjustment is complete 3 In no case should the final manifold pr...

Page 25: ...s previous setting 2 To check operation of the ignition system safety shut off features a Standing Pilot i Turn the gas control knob counterclockwise to PILOT The main burner should go out and the pil...

Page 26: ...ough oxygen corrosion pitting 5 Check the expansion tank and automatic fill valve if used to confirm that they are operating correctly If either of these components causes high pressure in the system...

Page 27: ...must follow all applicable codes and regulations in repair of any boiler problems INSTALLATION AND OPERATING INSTRUCTIONS 8 TROUBLESHOOTING Should overheating occur or the gas supply fail to shut off...

Page 28: ...upply ventilation and venting system 1 Insufficient pilot flame 2 Pilot burner orifice clogged 3 Overfiring 4 Misaligned burners or pilot 5 Draft problem in boiler room Delayed ignition 1 Increase pil...

Page 29: ...29 Figure 8 1 Intermittent Ignition System Troubleshooting Sequence INSTALLATION AND OPERATING INSTRUCTIONS...

Page 30: ...ry Measures Provide adequate ventilation Wear a NIOSH MSHA approved respirator Wear long sleeved loose fitting clothing and gloves to prevent skin contact Wear eye goggles Minimize airborne dust prior...

Page 31: ...hould never be higher than 5 psi 35 kPa below the rating shown on the safety relief valve 25 psig 172 kPa maximum for a 30 psig 207 kPa rating 45 psig 310 kPa maximum for a 50 psig 345 kPa rating The...

Page 32: ...n makes a tight seal to prevent leakage of the products of combustion h Re install the top of the jacket vent damper and vent pipe i Re install burners 2 Inspect entire venting system for corrosion su...

Page 33: ...h mm inch mm inch mm inch mm inch mm inch mm 70 121 2 318 265 8 676 313 8 797 61 4 159 2013 16 529 5 127 105 157 8 403 265 8 676 313 8 797 711 16 195 2013 16 529 5 127 140 191 4 489 265 8 676 313 8 79...

Page 34: ...ordering parts 11 REPAIR PARTS Table 11 1 Base Combustible Floor Pan 1 2 3 4 Base Assembly Observation Cover Door Base Blanket Seal Combustible Floor Pan Assembly Item No Description 7800 51771 50867...

Page 35: ...94 50894 Orifice Spud 49 Natural Gas 0 2000 ft 0 610 m elevation specify qty 50895 Orifice Spud 56 LP Gas 0 2000 ft 0 610 m elevation specify qty 50899 50899 50899 50899 Orifice Spud 57 LP Gas 0 2000...

Page 36: ...m elevation specify qty 50894 50894 50894 50894 Orifice Spud 49 Natural Gas 0 2000 ft 0 610 m elevation specify qty 50895 Orifice Spud 56 LP Gas 0 2000 ft 0 610 m elevation specify qty 50899 50899 508...

Page 37: ...1 4a Block Draft Hood 12 13 14 Block Assembly Flue Collector Draft Hood Flue Collector Blanket Seal Item No Description 90419 90510 50866 90423 90514 50866 90422 90513 50866 90421 90512 50866 90420 90...

Page 38: ...n Part Selection Information 70 105 140 175 195 16 Jacket Assembly Complete jacket with insulation and screws 90445 90446 90447 90448 90449 16 16 16 16 16 16 Complete Jacket Consists of Left Side Pane...

Page 39: ...ge 51324 51324 51324 51324 51324 25 Safety Relief Valve 30 psi Conbraco 10 408 05 50501 50501 50501 50501 50501 Safety Relief Valve 50 psi Watts 350 99950 99950 99950 99950 99950 26 Flame Roll Out Saf...

Page 40: ...WESTCAST INC 260 NORTH ELM STREET WESTFIELD MA 01085 TEL 413 562 9631 FAX 413 562 3799 www smithboiler com...

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