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Istruzioni per l'uso CFM Corporation, Modello SHR36

Produttore : CFM Corporation
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File Nome : 6693617f-9901-3694-c5b1-c02d4e10c998.pdf

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CFM Corporation - EH2416, K = .458, 1 inch thick required. 40" Min. 40" Min. Decorative Non- combustible Rigid Covering Noncombustible Insula- tion RT = 1.85 Min. (Manville Ceraform 126 - 1/2" Thick or CFM Corporation EH2416 - 1" Thick) Fig. 30 Noncombustible wall shield dimensions. FP838 Hearth Installation A hearth extension is required to protect a combustible floor in front of the fireplace. Refer to Figure 30 for minimum dimensions and mounting detail. NOTE: Hearth Extension must not cover the air inlet opening of a fireplace. The hearth extension described in Figure 32 must be a durable noncombustible material with a minimum (total) Rt value of 1.09; refer to Figure 31 for examples. The overall height (above a combustible floor), depth and width must be as indicated, with the extension centered to the fireplace opening. SHR Series Woodburning Fireplaces The top of insulation must be covered with a noncombustible decorative covering or a piece of .018” minimum sheet metal, to protect hearth extension material. (Fig. 32) Secure the hearth extension to the floor to prevent shifting, using trim molding or other similar means at three (3) outer edges. Seal crack between the fireplace hearth and hearth extension with a noncombustible material. (Figs. 32-35) WARNING: HEARTH EXTENSION MUST BE INSTALLED IN ACCORDANCE WITH FIGURE 26. Alternate noncombustible materials may be used providing the (total) thermal resistance (Rt value) of the alternate material employed is greater than or equal to R = 1.09. Thermal resistance (R) or thermal conductivity (K), may be obtained from manufacturer of the material. Factors are related by the formula K = 1/R. (Fig. 31) T = given thickness R = thermal resistance for a given thickness (T) K = thermal conductivity Noncombustible material with a lower R value may be used, provided thickness of material is sufficiently greater to maintain an equivalent (total) thermal resistance (Rt). Example of Determining Hearth Extension Equivalents To determine the thickness required for any new mate rial: NEW required thickness = K of new material (per inch) K of listed material (per inch) X thickness of listed material Example for Common Brick T (new) = 5.0/0.458 x 0.50 in. = 5.46 in. (new required thickness). Common Materials And Factors Material K* R Minimum Thickness EH2416 ..................................0.458 1.09 0.50 in.** Common Brick 5.0 0.10 5.46 in.** R Value is for ...... inch. * Units of K = BTU/SQ FT/HR/.F/IN** Thickness of Listed Material FP533ADD Fig. 31 Hearth extension material factors. 20001384 17 SHR Series Woodburning Fireplace Minimum Wall Clearances WITH Noncombustible Surround Facing WITHOUT Noncombustible Surround Facing Firebox Opening A -Min. clearance to combustible perpendicular wall B -Min. clearance to combustible perpendicular wall whenusing noncombustible wall shield* Side Wall Side Wall F** C** EE D 4" Brick (Example material) Combustible material permitted within shaded area. * Noncombustible wall shield requires 1" CFM Corporation EH2416 insulation (minimum R Value = 1.85) between decorative noncombustible rigid covering and combustible wall. Minimum height and width is 40" x 40". ** Dimension/degree of angle will vary depending on thicknessof noncombustible surround facing. 4" Shaded area starts 1/2" away fromedge of unit Minimum Hearth Extension Dimensions (for On-Site Construction) GH G J Seal cracks between the fireplaceand hearth extension with noncombustible material Safety stripsmust overlap ......" minimum May installnoncombustible decorative coveringOR .018" min. sheet metal FireplaceHearth Combustible Floor Minimum Insulation Value "R": 4" Min. A B C D E F G H J SHR36 20" (508 mm) 12" (305 mm) 35° 42° 18" (457 mm) 14" (356 mm) 8" (203 mm) 16" (406 mm) 52" (1321 mm) SHR42A 22" (559 mm) 18" (457 mm) 32...° 39...° 18" (457 mm) 14" (356 mm) 12" (305 mm) 20" (508 mm) 66" (1676 mm) SHR48 28" (711 mm) 18" (457 mm) 26...° 33° 18" (457 mm) 14" (356 mm) 10" (254 mm) 24" (610 mm) 68" (1227 mm) SHR52 30" (762 mm) 20" (508 mm) 33...° 38...° 24" (610 mm) 20" (508 mm) 14" (356 mm) 24" (610 mm) 80" (2032 mm) FP532SHR Fig. 32 Combustible side wall protection and hearth extension dimensions. Seal Cracks Between Fireplace and Hearth Extension with Noncombustible Material Noncombustible Decorative Covering May be Installed or .018" Minimum Sheet Metal Fireplace Hearth Lower Surround Majestic Safety Strips Must be Overlapped 1/2" Min. Minimum Insulation Value R-3.28 (Refer Table 4) Min. Thickness (Refer to Table 4) 2..." Min. Combustible Floor FP1169 Minimum Insulation Value R-0.94 1/4" Min. Thickness Combustible Floor Noncombustible Material 7...." Max. Thickness Seal Cracks Between Fireplace and Hearth Extension with Noncombustible Material Noncombustible Material Lower Surround Majestic Safety Strips Must be Overlapped 1/2" Min. Fireplace Hearth FP1170 Fig. 33 Protection of adjacent combustible side walls and hearth extension dimensions. 18 20001384 Wall Cover...