Haier AE122BCAAA (H2EM-18H03) Installation instruction, Installation of Duct, 1Duct material

Installation instruction

1. Installation of Duct

1)Duct material

Type

Thin metal sheet

Nonmetal material

Material	Structural characteristic	Main use
Normal thin steel	Good processing performance and structural hardness
Galvanize steel	Good anticorrosive performance	Generally used in ventilation duct system
Aluminumoritsalloy	Good processing performance, corrosion resistant,	Storm protection system in
	uneasily sparkle	ventilation engineering
Stainless steel	Anticorrosive, acid-resistant	Anti-corrosive ventilation
		engineering in chemical industry
Aluminum foil soft	Soft with compression resistant, simple installation	Widely used
metal duct	with vibration resistance
Plastic compound steel	Sprayed a layer of 0.2~0.4mm plastic on the normal	Air conditioning system needing
	thin steel	good dust protection and anti-
		corrosive system under 10~70*
Stiff PVC plastic	Anti-corrosive, glazed surface, easy production	Applicable to the ambient condition
		of 0*60 *,ventilation system
		with corrosion of acid gas
Glass fibre reinforced	With light, high intensity, noncombustible,	Anti-corrosive, glazed surface, easy
plastic	anti-corrosive, high temperature resistant characteristic	production

2) Sectional shape of duct (mainly has rounded and rectangular two shapes)

a

Rectangular duct

Rounded duct

b

3) Connecting mode

b

a

R*3/2b

d

R=2.5d

The dimension of rectangular duct is the same as the air outlet of indoor unit,can be directly connected; the rounded duct needs to be added with a static pressure box to connect with the air sending outlet of indoor unit; independently introduced to respective distributor by rounded duct. In order to meet the requirements of room air conditioner, the fan speed in each air outlet of any distributor shall be adjusted to basically the same.

4) Installation parameter										3		Air volume-static pressure graph of duct type unit
								Air volume(m/h)
	Diameter of dut*mm)				200
	Rectangular		H(mm)		100
	duct		L(mm)		700		800*
										*
	Out unit static pressure (Pa)				30							*	*
	Number of duct outlet				1-2			*		*					*		*	*	a
												*	*
	Duct length (m)				4			600							*
	Noise	dB(A)			40/38/36			*		*		*	*				*	*	b
															*		*
	Recommendedapplicablearea(m2)				14*25
								400										*	c
	Partialresistanceofdistributor(Pa)				25															Static pressure
	Resistance along duct (Pa/m)				1.2
																				value(Pa)
	Air volume-static pressure of duct type unit							0		5		10	15		20		25	30
	Static pressure(Pa)		0	5		10	15		20	25	30						Cutline
	Air	3
	Speed volume(m/h)
																a		High speed
	High speed		788	763		740	716		687	663	632		*
	Medium speed		669	642		615	587		567	538	512			*		b		Medium speed
	Low speed		543	519		480	463		442	418	390		*			c		Low speed

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