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Table of Contents

I. Product Description .............................................................. 1

II. Specifications ........................................................................ 1

III. Before Installing ................................................................... 2

IV. Locating the Boiler ................................................................ 3

V. Air for Combustion & Ventilation ......................................... 3

VI. Venting .................................................................................. 9

VII. System Piping Connections ................................................ 11

I  Product Description

   The KSZ series boiler is a cast iron oil-fired low pressure steam boiler designed for use in closed heating systems. This
boiler must be vented by natural draft into a lined masonry or metal chimney, or Type L vent. An adequate supply of air for
combustion, ventilation and dilution of flue gases must be available in the boiler room. This boiler has connections for use
with an indirect domestic water heater.

   The KSZ series boilers are not designed for use in process or other “open” steam systems.

II  Specifications

  

FIGURE 1:  GENERAL CONFIGURATION

1

VIII. Indirect Water Heater & Tankless Coil

                 Piping ........................................................... 13

IX. Fuel Line Piping ........................................... 16

X. Wiring .......................................................... 19

XI. Start-up and Checkout .................................. 23

XII. Service & Maintenance ................................ 26

XIII. Parts ............................................................. 29

Summary of Contents for KSZ065 KSZ075 KSZ100 KSZ090

Page 1: ...535 8900 Fax 215 535 9736 www crownboiler com Manufacturer of Hydronic Heating Products P O Box 14818 3633 I Street Philadelphia PA 19134 WARNING Improper installation adjustment alteration service or...

Page 2: ...d by natural draft into a lined masonry or metal chimney or Type L vent An adequate supply of air for combustion ventilation and dilution of flue gases must be available in the boiler room This boiler...

Page 3: ...ented 1 There is sometimes an accelerated rate of soot buildup on the oil burner cad cell spinner etc 2 There is a potential for severe damage to the side of the structure in the event that the boiler...

Page 4: ...used follow vent pipe manufacturer recommendations for minimum clearances 3 Do not install this boiler directly on a combustible surface Where it is desired to install the KSZ over a non carpeted comb...

Page 5: ...Openings Aligned To Permit Free Air Circulation 4 MIN Combustible Surface FIGURE 3 INSTALLATION OVER A COMBUSTIBLE FLOOR 4 6 6 18 6 24 LH SIDE CLEARANCE 24 FOR FLOAT TYPE LWCO EQUIPPED BOILERS CLEARAN...

Page 6: ...ing and the bottom edge of the lower opening must be within 12 of the floor Figure 4 Each opening must have a free area of 1 square inch per 1000 BTU hr input of all fuel burning appliances in the boi...

Page 7: ...7 FIGURE 4 BOILER INSTALLED IN CONFINED SPACE ALL AIR FROM INSIDE 6 FIGURE 5 ALL AIR FROM OUTDOORS VENTILATED CRAWL SPACE AND ATTIC...

Page 8: ...8 7 FIGURE 6 ALL AIR FROM OUTDOORS VIA VENTILATED ATTIC FIGURE 7 ALL AIR FROM OUTDOORS USING OPENINGS INTO BOILER ROOM...

Page 9: ...9 FIGURE 8 ALL AIR FROM OUTDOORS USING HORIZONTAL DUCTS INTO BOILER ROOM 8...

Page 10: ...and Solid Fuel Burning Appliances NFPA 211 and lined with a clay liner or other listed lining system Do not vent a KSZ series boiler into an unlined chimney 2 Acceptable Vent Connectors The following...

Page 11: ...nd the boiler collar as well as the barometric draft regulator Use at least three screws at each joint TABLE 2 MINIMUM RECOMMENDED BREECHING AND CHIMNEY SIZE Power Side Wall Venting Important Note Two...

Page 12: ...is to separate tiny water droplets from the steam exiting the boiler so that dry steam is sent to the system If the near boiler piping is not correct wet steam will enter the system and the following...

Page 13: ...lve spindle must be in vertical position into the 3 4 tapping on top of the boiler 3 Pipe the discharge of the safety relief valve to a location where water or steam will not create a hazard or cause...

Page 14: ...ween the boiler and the circulator inlet All piping between the boiler and the circulator inlet should be 1 regardless of the size of the piping required in the rest of the system See Figure 17 in Par...

Page 15: ...ackflushed to remove sediment WARNING A mixing valve does not eliminate the risk of scalding Set the mixing valve and boiler low limit adjustments as low as possible Feel water before showering or bat...

Page 16: ...r system if needed 6 Unions Required Tankless heaters may require periodic gasket replacement or other maintenance which requires removal of the heater from the boiler Install unions anywhere in the t...

Page 17: ...See Figure 13 A vertical distance from top of the tank to center line of the pump Dimension H over 8 feet will result in a pump inlet pressure in excess of the 3 psi limit in NFPA 31 b ONE PIPE LIFT...

Page 18: ...ed to a one pipe gravity system as doing so will result in lower inlet line flow and longer filter life d TWO PIPE LIFT SYSTEM used when a fuel oil storage tank is located below an oil burner fuel pum...

Page 19: ...l it as shown in the pump manufacturers s instructions Do not install this bypass plug on one pipe systems as pump seal damage will result 5 Do not use check valves especially on gravity feed systems...

Page 20: ...cuit between thermostat and boiler Connect thermostat wire leads to terminals T and T on the burner primary control 3 Optional Tankless Heater Wiring Install the L4006Awith the 3 4 NPT well in the 3 4...

Page 21: ...he CG450 2 Using McDonnell Miller WF2 U 120 feeder Do not alter factory boiler wiring Connect WF2 U 120 to CG450A as follows Connect terminal 1 on the feeder to terminal A on the CG450 Connect termina...

Page 22: ...22 FIGURE 18a WIRING MCDONNELL MILLER 101A 120 OR HYDROLEVEL VXT 120 FEEDER TO BOILER EQUIPPED WITH 67 L W C O FIGURE 18b WIRING MCDONNELL MILLER WF2 U 120 FEEDER 21...

Page 23: ...BURNERS CONSULT BURNER INSTRUCTION MANUAL FOR OTHER BURNERS CAD CELL 24 VOLT THERMOSTAT L4006A LIMIT CONTROL TANKLESS EQUIPPED BOILERS ONLY L1 INTERRUPTED INTERMITTENT BURNER MOTOR LIMIT VALVE L2 NOT...

Page 24: ...steam systems the cut in pressure should be set at 0 5 psi with a 1 psi differential 12 Turn the line service switch to ON position 13 Crack open vent fitting on the oil pump and allow burner to run...

Page 25: ...til about one inch of water is visible in gauge glass c Run a hose or temporary piping from the boiler drain valve to a location where hot water can be safely discharged Drain approximately five gallo...

Page 26: ...SETTING 0 0 1 0 1 2 0 3 3 DRAFT OVER FIRE in w c MAX SMOKE bacharach scale FLUE CO2 MIN 11 0 11 0 11 0 11 0 11 0 11 0 11 0 11 0 11 0 MAX 12 5 12 5 12 5 12 5 12 5 12 5 12 5 12 5 12 5 PREPURGE IGNITION...

Page 27: ...Hydrolevel CG450 manual for any additional maintenance information Test the low water cut off before placing the boiler back into service For McDonnell Miller 67 low water cut offs Remove and inspect...

Page 28: ...ng order Vents should not permit any passage of steam or water Check all steam and return piping for leaks Be aware that buried return piping can leak and go undetected during normal operation 3 Allow...

Page 29: ...e any accumulations of dust hair etc from the air shutter blower wheel and other air handling parts of the burner 5 Replace the fuel oil line filter element and gaskets 6 Inspect all oil piping and fi...

Page 30: ...a 1ea 1ea 1ea 1ea 1ea 1ea 1ea 1ea 11 REFRACTORYBLANKET 1ea 275003 275003 275003 275004 275004 275004 275005 275005 275005 12 SWINGDOOR 270020 1ea 1ea 1ea 1ea 1ea 1ea 1ea 1ea 1ea 20 1 2 x1 SEALINGSTRIP...

Page 31: ...31 30...

Page 32: ...2 ea 2 ea 2 ea 2 ea 2 ea 2 ea 2 ea 2 ea 2 ea 54 TWIST RECEPTICAL 96 010 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 55 TWIST RECEPTICAL COVER 96 019 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 1 ea 56 PR...

Page 33: ...33 32...

Page 34: ...34 Tel 215 535 8900 Fax 215 535 9736 www crownboiler com Manufacturer of Hydronic Heating Products P O Box 14818 3633 I Street Philadelphia PA 19134 CROWN Boiler Co Rev 2 05 03...

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