Technical information

3
7 - Operating limits 16
8 - Performances D4IC/D4IG 17
8.1.- Cooling capacities D4IC/D4IG-360 17
8.2.- Cooling capacities D4IC/D4IG-480 17
9 - Performances B4IH 18
9.1.- Cooling capacities B4IH-360 18
9.2.- Cooling capacities B4IH-480 18
9.3.- Heating capacities B4IH-360 19
9.4.- Heating capacities B4IH-480 19
10 - Characteristics of indoor fan 20
11 - Indoor fan performances 20
11.1.- Models 360, applications with vertical ducts (bottom) 20
11.2.- Models 360, applications with horizontal ducts (side) 20
11.3.- Models 480, applications with vertical ducts (bottom) 21
11.4.- Models 480, applications with horizontal ducts (bottom) 21
12 - Pressure drop of accessories 21
12.1.- Models 360 21
12.2.- Models 480 21
13 - Accessories 22
13.1.- Modulating economiser,
temperature controlled 22 - 23
13.2.- Enthalpy sensors for economiser 24
13.3.- Surge pressure barometric damper 24
13.4.- Extraction fan (axial) 25
13.5.- Fixed outdoor air intake damper 26
13.6.- Washable air filters G4 (EU4) 26
13.7.- Dirty filter pressure switch 26
13.8.- High pressure drive (HPD) 26
13.9.- Low ambient temperature control 26
13.10.- Electric heater 27
13.11.- Hot water coil 27
13.12.- Indoor air quality control probe (IAQ) 27
13.13.- Smoke detector 27
13.14.- Firestat 27
1 - Description
5
2 - Product nomenclature 5
3 - Characteristics 5
3.1.- Structure 5
3.2.- Durable construction 5
3.3.- Thermal/acoustic insulation 5
3.4.- Base beams 6
3.5.- Condensed water tray 6
3.6.- Duct connections 6
3.7.- Wide range of flows/fan starts 6
3.8.- Access for maintenance and servicing 6
3.9.- Service connections 6
3.10.- Electrical panel 6
3.11.- Control circuit 6
3.12.- Low noise level 6
3.13.- Multiple cooling circuits 6
3.14.- Compressors 6
3.15.- System protection 6
3.16.- Gas burner (D4IG units)
3.17.- Air filters 6
3.18.- Defrost sequence (B4IH equipment) 7
3.19.- Transportation and handling 7
3.20.- Location 7
3.21.- Sound level 7
4 - Technical specifications and physical data 8 - 10
4.1.- D4IC (Cool only) and D4IG (Cool only + gas heating) 8
4.2.- D4IH (Heat pump) 9
4.3.- Weights of accessories 10
4.4- Centre of gravity 10
5 - Dimensions, clearances and accesses 11
5.1.- Applications of upward ducts (bottom) 13
5.2.- Application of side ducts 14
5.3.- Indoor coil condensed water drain 15
6 - Electrical characteristics and connections 15
6.1.- Basic units 15
6.2.- Units with backup heaters 15
6.3.- Power and control wiring 15
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Index
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