Bard WL5S, WL3S WA/L3S Sound Data Matrix dBA @ 10 feet, WA/L4S Sound Data Matrix dBA @ 10 feet

Typical Sound Performance with Installation/Isolation Curbs & Acoustical Plenums

WA/L3S Sound Data Matrix (dBA @ 10 feet)

	Free Blow Configuration		Ducted Supply Configuration
		WMICF-5			WMICF-5	WMICF-5
Unit Mounting	Direct	Isolation	Direct	Direct	Isolation	Isolation
		Curb			Curb	Curb
		WAPFB51				WAPS51-G
		Free Blow	Standard	Standard	Standard
Supply Air Treatment	Grille					Supply Air
		Supply Air	Supply Duct	Supply Duct	Supply Duct
		Plenum				Silencer
		WAPR11-X		WAPR11-X Return Air		WAPR11-X
Return Air Treatment	Grille	Return Air	Grille			Return Air
				Silencer
		Silencer				Silencer
Blower Only Operation	37.8	30.7	33.6	33.6	27.4	27.6
with CRV
Compressor Stage 1	51.8	40.7	49.9	41.7	39.7	38.7
Operation with CRV
Compressor	52.3	41.4	50.8	42.4	40.8	39.9
Stage 2 Operation
Compressor Stage 2 with	52.7	41.7	51.7			42.9
ERV High Speed Operation
Indoor Integrated dBA	43.8	35.0	40.7	37.2	32.8	32.6
Compressor Stage 2	66.9	66.9	66.9	66.9	66.9	66.9
Outdoor Sound Level

Note 1: dBA is sound pressure measured 10 feet in front of unit and 5 feet above floor.

Note 2: Unit or isolation curb is mounted to frame construction.

Note 3: Results may vary depending upon other factors such as room size, type of construction and acoustical variances.

WA/L4S Sound Data Matrix (dBA @ 10 feet)

	Free Blow Configuration		Ducted Supply Configuration
		WMICF-5			WMICF-5	WMICF-5
Unit Mounting	Direct	Isolation	Direct	Direct	Isolation	Isolation
		Curb			Curb	Curb
		WAPFB51				WAPS51-G
		Free Blow	Standard	Standard	Standard
Supply Air Treatment	Grille					Supply Air
		Supply Air	Supply Duct	Supply Duct	Supply Duct
		Plenum				Silencer
		WAPR11-X				WAPR11-X
Return Air Treatment	Grille	Return Air	Grille	WAPR11-X Return Air		Return Air
		Silencer		Silencer		Silencer
Blower Only Operation	40.1	38.9	38.4	34.5	32.8	28.2
Compressor	52.0	41.4	50.9	41.2	40.5	39.0
Stage 1 Operation
Compressor	53.7	44.0	52.9	44.3	42.0	40.5
Stage 2 Operation
Compressor Stage 2 with	55.0	46.2	54.0			44.8
ERV High Speed Operation
Indoor Integrated dBA	45.4	40.4	44.0	37.8	35.8	33.0
Compressor Stage 2	65.0	65.0	65.0	65.0	65.0	65.0
Outdoor Sound Level

Note 1: dBA is sound pressure measured 10 feet in front of unit and 5 feet above floor.

Note 2: Unit or isolation curb is mounted to frame construction.

Note 3: Results may vary depending upon other factors such as room size, type of construction and acoustical variances.

WA/L5S Sound Data Matrix (dBA @ 10 feet)

	Free Blow Configuration		Ducted Supply Configuration
		WMICF-5			WMICF-5	WMICF-5
Unit Mounting	Direct	Isolation	Direct	Direct	Isolation	Isolation
		Curb			Curb	Curb
		WAPFB51				WAPS51-G
		Free Blow	Standard	Standard	Standard
Supply Air Treatment	Grille					Supply Air
		Supply Air	Supply Duct	Supply Duct	Supply Duct
		Plenum				Silencer
		WAPR11-X				WAPR11-X
Return Air Treatment	Grille	Return Air	Grille	WAPR11-X Return Air		Return Air
		Silencer		Silencer		Silencer
Blower Only Operation	40.3	33.3	35.1	34.8	33.5	31.1
Compressor	52.6	40.8	50.6	43.6	40.9	39.9
Stage 1 Operation
Compressor	56.7	45.3	51.6	46.8	44.5	43.2
Stage 2 Operation
Compressor Stage 2 with	57.8	47.1	55.0			45.4
ERV High Speed Operation
Indoor Integrated dBA	46.2	37.2	41.8	39.0	37.2	35.4
Compressor Stage 2	65.4	65.4	65.4	65.4	65.4	65.4
Outdoor Sound Level

Note 1: dBA is sound pressure measured 10 feet in front of unit and 5 feet above floor.

Note 2: Unit or isolation curb is mounted to frame construction.

Note 3: Results may vary depending upon other factors such as room size, type of construction and acoustical variances.

Form No.	S3378-1112
Supersedes	S3378-712
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