6)Prior to boiler installation, inspect chimney for obstructions or other defects and correct as required. Clean chimney as necessary.

7)Vent pipe should slope upward from the boiler not less than one inch in four feet. No portion of vent pipe should run downward or have sags. Vent pipe must be securely supported.

8)The vertical section of vent pipe coming off the boiler should be as tall as possible, while still maintaining the proper clearance from the horizontal vent connector to combustibles and the proper pitch called for in (7) above.

9)Vent pipe should be installed above the bottom of the chimney to prevent blockage.

10)Vent pipe must be inserted flush with inside face of the chimney liner and the space between vent pipe and chimney sealed tight. A thimble permanently cemented in place can be used to facilitate removal of chimney connector for cleaning.

11)Install the barometric draft regulator in accordance with the regulator manufacturer’s instructions.

12)Secure all joints in the vent connector system with sheet metal screws. This includes the joint between the vent connector and 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

Boiler

Min Breeching

Min. Recommended Chimney Size and Height

Model

Dia. (inches)

Round I.D. (in)

Rectangular I.D. (in)

Height (ft)

KSZ065

6

6

8 x 8

15

KSZ075

6

6

8 x 8

15

KSZ100

6

6

8 x 8

15

KSZ090

7

7

8 x 8

15

KSZ125

7

7

8 x 8

15

KSZ150

7

7

8 x 8

15

KSZ120

8

8

8 x 8

15

KSZ175

8

8

8 x 8

15

KSZ200

8

8

8 x 8

15

Power (“Side Wall”) Venting - Important Note

Two problems arise when any oil-fired appliance is power vented:

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 operates at a high smoke level. This can happen for many reasons, some of which are out of the control of both the installer and appliance manufacturer.

Crown Boiler Company recommends the use of a chimney to vent the KSZ series boilers. If a power venter must be used, it is the responsibility of the installer and power vent manufacturer to “engineer” the power vent system. CROWN BOILER

COMPANY WILL ASSUME NO RESPONSIBILITY FOR DAMAGE TO SIDING, ETC. FROM A POWER VENTED OIL-FIRED BOILER. THIS APPLIES REGARDLESS OF THE CAUSE OF THE SOOTING.

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Crown Boiler KSZ200, KSZ150, KSZ125, KSZ175, KSZ120, KSZ065, KSZ090, KSZ100 Minimum Recommended Breeching Chimney Size, 1110