Toshiba RAV-SM404MUT-TR, RAV-SM454MUT-E, RAV-SM1404BT-E Concealed Duct type, SM56 type Round duct

1. AIR DUCTING WORK

1-1. Static Pressure Characteristics

Concealed Duct type

RAV-SN564BT ∗, RAV-SN804BT ∗, RAV-SN1104BT ∗, RAV-SN1404BT ∗

Fig. 1 SM56 type (Round duct)	Fig. 3 SM80 type (Round duct)
Standard air volume 780m³/h	Standard air volume 1140m³/h

140

140

120

120

High

static

pressure

High

static

pressure

100

2H

100

2H

tap

limit

tap

Usable

limit

Usable

High

High

(Pa)

static

pressure

(Pa)

static

pressure

1H

80

80

tap

1H

Static pressure

tap

Static pressure

Air volume limit (Max.)

60

Standard

60

Standard H

H

volume limit (Min.)

tap

volumelimit (Max.)

tap

40

Lo

w

static

40

Low

static

p

pressure

ressure

H tap

H

20

tap

20

Standard L

(Min.)limitvolumeAir

Standard

tap

Air

Air

L

tap

0

0

500

700

780

900

800

1000

1140

1200

1300

Air volume m³/h	Air volume m³/h
Fig. 2 SM56 type (Square duct)	Fig. 4 SM80 type (Square duct)
Standard air volume 780m³/h	Standard air volume 1140m³/h

	140													140
					High		static	pressure
	120													120
			limit								2H	tap
	108	Usable
	100		High		static									100	Usable
							press	ure
									1H
										tap
(Pa)													(Pa)
	80													80
												(Max.)limitvolumeAir			(Min.)limitvolumeAir
pressureStatic	(Min.)limitvolumeAir		Standard										pressureStatic
						H
	60						tap							60
			Low	static
						pressure
	40							H						40
								tap
				Standard
							L
	20						tap							20
	0													0
	500			700			780						900	800

High
static	pressure
		2H
limit
High
static
pressure
	1H	tap
Standard
H tap
Low
static
pressure
H tap
Standard
L tap

1000 1140 1200

tap

Air volume limit (Max.)

1300

Air volume m³/h Air volume m³/h

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