Schwank STR-JZ Manuel du propriétaire télécharger pdf (Page 20)

SP-MSJR-BX-08C

STR-JZ Manual

RD: NOV 2006

RL: 8C

Page 16

Where the vent pipe passes through areas where the ambient temperature is likely to produce con-

densation of the flue gases, the vent pipe shall be insulated with a suitable material as approved and

specified by the insulation manufacturer. Check with Schwank Technical Support as to the

maximum vent temperature requirements.

The vent system always must be adequately supported to prevent sagging.

(See Fig 4 Page 6)

FIGURE 13 FLUE VENT CONNECTION

For Direct and Indirect Venting it is recommended to install a length of ’C’ Vent onto the end of

the last tube before any fittings are installed. The “C” Vent connection should be slipped onto the

tube and positioned approx 6” beyond the swage portion of the 4” tube and must be secured with

sheet metal screws.

PLEASE SEE SECTION 12: HEATER EXPANSION (PAGE 18).

10. COMBUSTION AIR

Where heater is operated in a negative air condition or in contaminated air atmosphere such as

woodworking shops, air for combustion must be ducted from outside to intake flange on blower.

The total maximum combined length of vent and combustion air duct is 50' for STR-JZ 60 and 45.

Neither the individual flue vent or combustion air duct is to exceed 50'. The total maximum allow-

able combined vent /air duct is reduced by ten feet for every 90

vent elbow installed.

The Manufacturer recommends that the STR-JZ be installed with 4 inch diameter combustion air

duct to draw combustion air from outdoors. If combustion air duct is not installed, this heater re-

quires a minimum 15 cfm of air for combustion purposes. Allow 5 square inches of open free area to

provide adequate combustion air.

FLUE VENT END

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Schwank STR-JZ Manuel du propriétaire Page 20