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Optional Accessories: A272 - Cl.0 Or A1 (En13501-1) Insulation - Mitsubishi Electric t-NEXT DF DX 011 P1 S Manual

Air conditioners for it cooling with dual fluid system.to be matched with remote air-cooled condenser.
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t-NEXT DF DX
OPTIONAL ACCESSORIES: A272 – CL.0 or A1 (EN13501-1) INSULATION
SIZE
OVER
Weight increasing (1)
kg
UNDER
Weight increasing (1)
kg
1.
Add this value to the total unit weight
T_tNEXTDFDX_0719_EN
The optional is designed TO SUPPLY THE PANELING ONLY WITH FIRE REACTION IN CLASS "0"
OR "A1 (EN 13501-1)"; furthermore, allows a noise insulation of the panels of the air conditioners.
The pressure level reduction of the unit is about 2 dB(A). The reduction refers ONLY to the sound level
radiated from the unit or in front of the unit. The noise level data on return and delivery air do not
undergo reductions.
The accessory includes:
External part as standard panel.
Internal part in galvanized steel sheet.
The inside noise insulation with special soundproof material.
REACTION TO FIRE CLASSIFICATION
On Italian territory, the classification is per the D.M. of June 26, 1984 and subsequent amendments,
providing for a sort in "Classes" from 0 (non-combustible material) to 5 (extremely flammable material).
The EN 13501-1 regulation is ordered in classes from A1 (non-combustible material) to F (extremely
flammable material).
A comparison of the classes is not possible because the methods and evaluation criteria are completely
different. The comparison table below is being considered purely indicative.
Definition
Non-combustible material
Combustible material, very limited contribution to fire
Combustible material, limited contribution to fire
Combustible material, medium contribution to fire
Combustible material, highly contribution to fire
Combustible material, easily flammable
Is possible to provide the sandwich panels for the OVER units with air flow from the top.
This implies that the air intake must necessarily be from the base of the unit with front blind paneling.
The accessory increases the unit weight:
E1
E2
E3
26
42
48
30
48
55
E4
E5
E6
64
72
86
70
86
110
65
Italian classes
EN 13501-1
Class 0
A1
Class 1
A2 – B
Class 2
A2 – B - C
Class 3
C – D
Class 4
E
Class 5
F
E7
E8
E9
100
115
--
130
145
165
MEHITS S.p.A.
DATA BOOK

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