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Design & installation Guide For McQuay MDS Multi System
Annex 3 Table of recommended wind speeds for central air-conditioning
Annex 4 Criteria of environment noise in urban areas
Annex 5 Table of recommended diameter for condensate water pipes
Annex 2 Max. flow velocity at the air outlet (Unit: mm)
Place Pan outlet Ceiling outlet Side outlet
Broadcasting studio 3-3.5 4-4.5 2.5
Hospital ward 4-4.5 4.5-5 2.5-3
Hotel room, parlor 4-5 5-6 2.5-4
Department store, theater 6-7.5 6.2-7.5 5-7
Classroom, library, office building 5-6 6-7.5 3.5-4.5
Min. slope of pipes Cooling load (kW)
0.001 18 100 176 598 1055 1512 12462 12462
0.003 24 230 400 1100 2000 3500 15000 15000
Nominal pipe
DN25 DN32 DN40 DN50 DN80 DN100 DN125 DN150
diameter (mm)
Category Scope of application Daytime (dB) Nighttime (dB)
0 Sanatorium, top-grade villa, top-grade hotel 50 40
1
Areas intended mainly for residence,
55 45
culture & education,business and industry
2 Areas intended for residence, 60 50
business and industry
3 Industrial estate 65 55
4
On both sides of urban roads
70 55
and traffic arteries
Position
Recommended wind speed (m/s) Max. wind speed (m/s)
Residential Public
Factory
Residential Public
Factory
building building building building
Air duct inlet 3.5 4.0 5.0 4.5 5.0 7.0
Fan outlet 5 86.510 8 12 8.5 7.5 11 8.5 14
Main air duct 3.5 4.5 5.0 6.5 6 946 5.5 8.0 6.5 11
Branch air duct 3.0 3.0 4.5 4.5 3.5 5.0 4.0 6.5 5 9
Fresh air inlet 3.5 4.0 5.0 4.0 5.0 7.0
Air outlet from
2.5 3 3.5 4.0 3.25 44658
the branch duct
Annex 1 (2) Heat load indexes designed for air-conditioning in some of the Chinese buildings
No.
Building type Heat load index
No.
Building type Heat load index
and room name W/m
2
and room name W/m
2
1Office building,school 58-80 6 Store 64-87
2 Residential building 46-70 7
Single-floor
85-105
residential building
3 Hospital, kindergarten 64-80 8 Dining room 116-140
4Hotel 58-70 9 Cinema 93-116
5Library 46-76
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