Crown-boiler KSZ175 User Manual download pdf (Page 13)

2) Acceptable Vent Connectors - The following may be used for vent connectors:

• Listed Type L vent.

• Single Wall Galvanized Pipe - Use 0.018” (26 gauge) or heavier.

3) Chimney and Vent Connector Sizing - See Table 2 for minimum vent connector and chimney sizing. The vent connector

size must not be smaller than the boiler ue collar diameter.

4) Do not vent this appliance into any portion of a mechanical vent system operating under positive pressure.

5) Do not connect the boiler into a chimney ue serving an open replace or other solid fuel appliance.

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 ush 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.

Power (“Side Wall”) Venting - Important Note

Two problems arise when any oil-red 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

TABLE 2: MINIMUM RECOMMENDED BREECHING AND

CHIMNEY SIZE

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

Boiler

Model

Min Breeching

Dia. (inches)

Min. Recommended Chimney Size and Height

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 37 38

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Crown-boiler KSZ175 User Manual Page 13

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