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29 

 

Part List 

 

G*C FRONT SECTION 

60 

GC PNA - POCKET FOR SENSING BULBS 

G*C INTERMEDIATE SECTION 

67 

TAPPING WITH AIR RELIEF VALVE 

G*C REAR SECTION 

68 

REAR CASING 

NIPPLE 

83 

SPECIAL PIN FOR CASING ASSEMBLY 

STAYBOLTS 

86 

FIBRE-GLASS ROPE DIA. 10 

BODY INSULATION 

87 

HINGE PIN 

FRONT DOOR (MONOBLOCK) 

88a 

HINGE - LEFT HAND SIDE 

11 

FRONT INSULATION 

88b 

HINGE - RIGHT HAND SIDE 

15 

RUBBER GASKET 

89 

OUTLET FOR PRESSURE MEASUREMENT 

19 

REAR INSULATION 

SETSCREW M10 x 30 

20 

SIGHTGLASS FRAME 

WASHER A10.5 

21 

SIGHTGLASS 

NUT M10 

22a 

SIGHTGLASS FRAME INSULATION 

STUD M10 x 40 

22b 

SIGHTGLASS INSULATION 

NUT M8 

24 

FRONT DOOR REFRACTORY 

WASHER A8.4 

25 / 27 / 29 

2ND PASS RETARDERS 

SETSCREW M5 x 15 

26 / 28 

3RD PASS RETARDERS 

NUT M6 

30 

DELIVERY STUB PIPE 

WASHER A6.4 

31 

RETURN STUB PIPE 

STUD M6 x 22 

44 

BLANK FLANGE 

SELF TAPPING SCREW S6.3 x 30 

47 

SMOKEHOOD DIA.150 MM 

SERRATED WASHER A4.3 

50 

SMOKEHOOD CLEANING COVER 
INSULATION 

NUT M4 

51 

SMOKEHOOD CLEANING COVER 

SELF TAPPING SCREW S4.8 x 9.5 

53 

CHASSIS - LEFT/RIGHT HAND SIDE 

WASHER A6.4 

54 

SIDE CASINGS - LEFT/RIGHT HAND SIDE 

SETSCREW M3 x 6 

55 

FRONT CASING LOWER PART 

WASHER A9 

56 

FRONT CASING UPPER PART 

STUD M8 x 50 

57 

ÜST SAC 

SETSCREW M8 x 16 

58 

BOILER DATA PLATE 

SETSCREW M8 x 30 

 

PARTS NOT ILLUSTRATED 

 

AA-1 

AA-2 

HONEYWELL L7248 – AQUASTAT 

HYDROSTAT 3250 -- AQUASTAT 

CC 

PRESSURE VALVE (30 lbs)  

BB 

PRESSURE – TEMPERATURE GAGE  

DD 

DRAIN VALVE  

 

Summary of Contents for B*C-3 sections

Page 1: ...IFFER FROM THIS MANUAL 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 P...

Page 2: ...MATION 13 7 0 FUEL SYSTEM 14 8 0 ACCESSORY INSTALLATION 15 9 0 BURNER INSTALLATION SETTING 16 10 0 TECHNICAL INFORMATION 20 11 0 BOILER START UP OPERATION 21 11 1 START UP PROCEDURE 21 11 2 L7248 HONE...

Page 3: ...AMPER WITH THE BOILER OR CONTROLS CALL A QUALIFIED BURNER TECHNICIAN DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPOURS AND LIQUIDS IN THE VICINITY OF THIS UNIT OR ANY OTHER APPLIANCE IMPORTANT T...

Page 4: ...local codes and CSA B139 Consult local fire codes for required clearances Connections to chimney must be made with the proper gauge thickness and diameter of fluepipe as required by CSA B139 CLEARANCE...

Page 5: ...LACEMENT LEVELING OF THE UNIT The boiler should be located on firm foundation in an easily accessible area that meets the previously discussed clearances and air requirements In situations where the f...

Page 6: ...will be used to level the boiler Screw the 4 mm jacket affixing screw to the frame rail from the top down Both the bolt and affixing screw will be located on the same end of the frame rail The frame r...

Page 7: ...ND BACK PANEL ATTACHMENT Affix panel mounting nuts to the rear of the tie rods Mount the side panels by placing the panel over the frame rail so that the hole in the bottom lip of the panel fits direc...

Page 8: ...to insert the sensor The sensor must be fully inserted to the bottom of the well STEP 7 TOP AND FRONT PANEL ATTACHMENT Affix the top panel by placing the holes located on the underside of the panel ov...

Page 9: ...ast iron system If the conversion is from a high volume system a bypass loop must be installed Manual shut off valves must be installed on both the supply line and on the boiler bypass loop ASME Boile...

Page 10: ...eratures above 200 F and within limits advised by the manufacturer The pump must not be operated unless the system has been bled of all air and completely filled with water Recommended locations for t...

Page 11: ...2 A typical installation with no domestic hot water and with a by pass loop installed Figure 3 A typical installation with domestic hot water supplied by an indirect heater and with no by pass loop i...

Page 12: ...his manual and only by qualified individuals The boiler and burner should only be operated on 120 Vac Field connections should be properly sized and protected with a minimum 15A fuse or circuit breake...

Page 13: ...ng zone Typical wiring for line voltage oil burner with Fuel Smart HydroStat 3250 and one heating zone Insert sensor ALL THE WAY into well through the knockout A or B you have chosen WARNING For Canad...

Page 14: ...nnection The chimney connector should be at least 24 gauge metal be properly supported and be free of as many 90 degree turns as possible The distance between the boiler and the chimney depends on whe...

Page 15: ...return fuel line may be used on inside installations where the tank level is below the level of the burner The return line must be equal in diameter to the suction line The minimum size for the oil l...

Page 16: ...Not applicable for Direct Vent systems Field Controls Model WMO 1 Manual Reset Switch Operation Blocked vent switches are flue gas safety devices for detecting spillage of flue gases due to a blocked...

Page 17: ...heat 3 Once the heating system has started the blocked vent switch should shut down the burner within 10 minutes or sooner 4 Once the system has cooled the blocked vent switch can manually be reset 5...

Page 18: ...y setting no PLUG plug SET BURNER FOR EFFICIENT OPERATION BURNER SETTING Use burner settings in the table on page 20 or operating decal as a guide to set burner particularly for nozzle changes Those s...

Page 19: ...03 w c draft pressure at the breech sampling hole The draft regulator s adjustments should be made after boiler has been running under heating mode for at least 5 minutes All your tests must be done...

Page 20: ...nd adjustment on the burner to reduce your CO2 reading by 1 You now have a perfect slight trace of smoke Relation between of CO2 and O2 CO2 O2 Excess Air 13 5 2 6 15 0 13 0 3 3 20 0 12 5 4 0 25 0 12 0...

Page 21: ...S YES YES YES YES AFUE 87 4 87 4 87 3 87 1 87 4 87 5 CO2 13 13 13 13 13 13 In the Unit Model number is specific information of the product for administration only 3H for Honeywell control L7248 high l...

Page 22: ...te operation The use of accurate instruments is necessary to achieve maximum efficiency and lowest fuel costs Adjust the thermostat to manufacturer s instruction Place this manual the control manual a...

Page 23: ...ent disconnect thermostat short T T Boiler starts check wiring and thermostat 120 V a c at B1 B2 If no replace control If yes check burner and wiring Boiler is not house is cold Display is ON 120 V a...

Page 24: ...ndirect switch DIAGNOSTIC LEDs and Test Button B JUMPER Indicator Light Heat Call A High temp limit setting 100F 220F Factory set at 190F D Economy Dial OFF or LO 1 2 3 4 5 and HI C Low Temperature Li...

Page 25: ...24...

Page 26: ...25 Trouble Shouting the HydroStat 3250...

Page 27: ...tween the furnace and the chimney base If this is not sufficient consider cutting or removing some flue baffles in the furnace BE AWARE THAT REMOVING BAFFLES REDUCES THE UNIT EFFICIENCY AND A MODIFIED...

Page 28: ...the smoke hood C Baffles cleaning C access door A B C Replace insulation on the rear section and smoke hood Replace swing door and tighten bolts Refit the front casing 12 2 BURNER NOTES Your burner ma...

Page 29: ...28 13 0 EXPLODED PARTS VIEW Exploded Parts View...

Page 30: ...T M8 24 FRONT DOOR REFRACTORY F WASHER A8 4 25 27 29 2ND PASS RETARDERS G SETSCREW M5 x 15 26 28 3RD PASS RETARDERS H NUT M6 30 DELIVERY STUB PIPE J WASHER A6 4 31 RETURN STUB PIPE K STUD M6 x 22 44 B...

Page 31: ...TS Size of unit Btu h Nozzle Oil Pressure psi Chimney size ____________ Direct vent system DVS _________ Burner adjustments RIELLO F3___ BF3___ RIELLO F5___ BF5___ RIELLO F10____ Turbulator Air Gate S...

Page 32: ...ss 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 to...

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