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Daikin EWAT290B-SRA1 [45/62] Air heat exchanger altitude correction factors
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OPTIONS (TECHNICAL DATA)
45/62
Water heat exchanger - maximum/maximum water Δt
The minimum and maximum allowed Δt at full load conditioins are respectively 3 °C and 8°C. Contact factory
in case lower or higher Δt are required
Water flow
The following tables indicate the minimum and maximum water flow allowed for each model. For application with
Variable Primary Flow (opt. code 143) refer to the following value for the dimensioning of the bypass line.
In case of variable flow application where the speed of the pump is managed by an external BMS (trough 0- 10V
signal) the change in water flow rate must not be exceed more than 10% of design water flow rate (at standard
conditions) per minute.
The minimum flow indicated correspond to the minimum flow allowed at minimum load for the unit. It is not
intended as minimum flow allowed for unit full load operation.
For minimum flow allowed (maximum deltaT) in full load operation refer to Selection Software.
The below values are referred to pure water (in case of glycol mixture contact factory).
Note: the performances are certified at standard conditions and with the unit operating with the nominal water
flow (corresponding to OAT 35°C; water in/out 12/7°C).
SILVER EFFICIENCY UNITS
GOLD EFFICIENCY UNITS
MODEL
Min Flow
[l/s]
Max flow
[l/s]
MODEL
Min flow
[l/s]
Max flow
[l/s]
EWAT085B-SS(L)(R)A1
1.8
9.0
EWAT085B-XS(L)(R)A1
1.8
9.0
EWAT115B-SS(L)(R)A1
2.0
10.3
EWAT115B-XS(L)(R)A1
2.0
10.3
EWAT135B-SS(L)(R)A1
2.7
14.8
EWAT145B-XS(L)(R)A1
2.7
14.8
EWAT155B-SS(L)(R)A2
2.3
11.9
EWAT180B-XS(L)(R)A2
3.6
17.0
EWAT175B-SS(L)(R)A1
3.5
16.6
EWAT185B-XS(L)(R)A1
3.5
16.6
EWAT195B-SS(L)(R)A2
3.6
17.0
EWAT200B-XS(L)(R)A2
3.6
17.0
EWAT205B-SS(L)(R)A2
3.6
17.0
EWAT220B-XS(L)(R)A2
4.3
20.0
EWAT215B-SS(L)(R)A1
4.3
20.5
EWAT230B-XS(L)(R)A1
4.3
20.5
EWAT240B-SS(L)(R)A2
3.6
17.0
EWAT250B-XS(L)(R)A2
4.3
20.0
EWAT260B-SS(L)(R)A2
3.6
17.0
EWAT280B-XS(L)(R)A2
5.6
26.5
EWAT290B-SS(L)(R)A1
4.3
20.5
EWAT300B-XS(L)(R)A1
4.9
23.1
EWAT310B-SS(L)(R)A2
5.6
26.5
EWAT310B-XS(L)(R)A2
5.6
26.5
EWAT330B-SS(L)(R)A2
5.6
26.5
EWAT320B-XS(L)(R)A2
5.6
26.5
EWAT340B-SS(L)(R)A1
4.9
23.1
EWAT360B-XS(L)(R)A1
4.9
23.1
EWAT350B-SS(L)(R)A2
5.6
26.5
EWAT370B-XS(L)(R)A2
5.6
26.5
EWAT420B-SS(L)(R)A2
7.0
31.2
EWAT430B-XS(L)(R)A2
7.0
31.2
EWAT460B-SS(L)(R)A2
7.0
31.2
EWAT470B-XS(L)(R)A2
7.0
31.2
EWAT510B-SS(L)(R)A2
7.0
31.2
EWAT540B-XS(L)(R)A2
8.8
41.2
EWAT570B-SS(L)(R)A2
8.8
41.2
EWAT600B-XS(L)(R)A2
8.8
41.2
EWAT610B-SS(L)(R)A2
8.8
41.2
EWAT660B-XS(L)(R)A2
9.9
46.0
EWAT670B-SS(L)(R)A2
8.8
41.2
EWAT700B-XS(L)(R)A2
9.9
46.0
Minimum glycol percentage for low air ambient temperature to prevent freezing
of the hydraulic circuit
AMBIENT T [°C]
-3
-8
-15
-20
AMBIENT T [°C]
-3
-8
-15
-20
ETHYLENE GLYCOL
10%
20%
30%
40%
PROPYLENE GLYCOL
10%
20%
30%
40%
The presence of glycol in the water system will affect unit performances. Refer to the selection software for
details. All machine protection systems, such as antifreeze and low-pressure protection will need to be set in
accordance to the type and percentage of the glycol and plant requirements.
Air heat exchanger - Altitude correction factors
ELEVATION ABOVE SEA LEVEL [m]
0
300
600
900
1200
1500
1800
BAROMETRIC PRESSURE [mbar]
1013
997
942
908
875
843
812
COOLING CAPACITY CORRECTION FACTOR
1
0,993
0,986
0,979
0,973
0,967
0,96
POWER INPUT CORRECTION FACTOR
1
1,005
1,009
1,015
1,021
1,026
1,031
Maximum operating altitude is 1800 m above sea level.
Contact factory if the unit has to be installed 1000 m above the sea level.
Содержание
- Air cooled chiller with scroll compressors 1
- Databook 1
- Ewat b 1
- Features and benefits 2
- Features and benefits 3
- Features and benefits 4
- Features and benefits 5
- Additional information related to f gas regulation eu no 517 2014 of the european parliament and of the council of 16 april 2014 on fluorinated greenhouse gases and repealing regulation ec no 842 2006 6
- Features and benefits 6
- Features and benefits 7
- Features and benefits 8
- Nomenclature 9
- Options 10
- Standard options supplied on basic units 10
- Mechanical options on request 11
- Options 11
- Options 12
- Electrical options on request 13
- Options options 14
- Installation options on request 15
- Options 15
- Other options on request 15
- Ewat b ss l 16
- Technical specification 16
- Ewat b ss l 17
- Technical specification 17
- Ewat b ss l 18
- Technical specification 18
- Ewat b ss l 19
- Technical specification 19
- Ewat b sr 20
- Technical specification 20
- Ewat b sr 21
- Technical specification 21
- Ewat b sr 22
- Technical specification 22
- Ewat b sr 23
- Technical specification 23
- Ewat b xs l 24
- Technical specification 24
- Ewat b xs l 25
- Technical specification 25
- Ewat b xs l 26
- Technical specification 26
- Ewat b xs l 27
- Technical specification 27
- Ewat b xr 28
- Technical specification 28
- Ewat b xr 29
- Technical specification 29
- Ewat b xr 30
- Technical specification 30
- Ewat b xr 31
- Technical specification 31
- Electrical specifications 32
- Ewat b ss l 32
- Electrical specifications 33
- Ewat b ss l 33
- Electrical specifications 34
- Ewat b sr 34
- Electrical specifications 35
- Ewat b sr 35
- Electrical specifications 36
- Ewat b xs l 36
- Electrical specifications 37
- Ewat b xs l 37
- Electrical specifications 38
- Ewat b xr 38
- Electrical specifications 39
- Ewat b xr 39
- Ewat b sl 40
- Ewat b ss 40
- Sound levels 40
- Ewat b sr 41
- Ewat b xs 41
- Sound levels 41
- Ewat b xl 42
- Ewat b xr 42
- Sound levels 42
- Amb t c 43
- Elwt c 43
- Ewat b s silver series 43
- Operating limits 43
- Units with multi v layout 43
- Units with single v layout 43
- Amb t c 44
- Elwt c 44
- Ewat b x gold series 44
- Multi v gold efficiency 44
- Options technical data 44
- Ref 3 ref 2 44
- Units with single v layout 44
- Air heat exchanger altitude correction factors 45
- Minimum glycol percentage for low air ambient temperature to prevent freezing of the hydraulic circuit 45
- Options technical data 45
- Water flow 45
- Water heat exchanger maximum maximum water δt 45
- Available fan static pressure correction factors 46
- Heat recovery 46
- Maximum cable dimension 46
- Options technical data 46
- Plant water conten 46
- Water quality 46
- Options technical data 47
- B c d e 48
- Ewat b s silver series single pump low lift 48
- Installations notes 48
- Multi v layout 48
- Single v layout 48
- Ewat b s silver series single pump high lift 49
- External pressure head kpa 49
- Installations notes 49
- Multi v layout 49
- Single v layout 49
- Water flow l s 49
- B c d e 50
- Ewat b s silver series twin pump low lift 50
- External static pressure kpa 50
- Installations notes 50
- Multi v layout 50
- Single v layout 50
- Water flow l s 50
- Ewat b x gold series single pump low lift 51
- External pressure head kpa 51
- External static pressure kpa 51
- H i j k 51
- Installations notes 51
- Multi v layout 51
- Single v layout 51
- Water flow l s 51
- Ewat b x gold series single pump high lift 52
- External pressure head kpa 52
- Installations notes 52
- Multi v layout 52
- Single v layout 52
- Water flow l s 52
- Ewat b x gold series twin pump low lift 53
- External static pressure kpa 53
- Installations notes 53
- Multi v layout 53
- Single v layout 53
- Water flow l s 53
- E i c b 54
- Ewat b x gold series twin pump high lift 54
- External pressure head kpa 54
- Installations notes 54
- Multi v layout 54
- Single v layout 54
- Water flow l s 54
- External pressure head kpa 55
- Installations notes 55
- Starting current with soft starter tank volume hydronic kit with tank 55
- Water filter pressure drops 55
- Installations notes 56
- Location 56
- Space requirements 56
- Warning 56
- Installations notes 57
- Multiple chillers installation closed area with wind prevalent direction 57
- Multiple chillers installation free field with wind prevalent direction 57
- Hydraulic schemes 58
- Installations notes 58
- Water filter 58
- Installations notes 59
- Technical specifications 59
- Installations notes 60
- Technical specifications 60
- Installations notes 61
- Technical specifications 61
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