![Daikin EWAT290B-SRA1 [11/62] Options](/img/pdf.png)
Daikin EWAT290B-SRA1 [11/62] Options
![Daikin EWAT290B-SRA1 [11/62] Options](/views2/1681015/page11/bgb.png)
11/62
OPTIONS
Mechanical Options – On request
20mm evaporator insulation (opt. code 29)
The heat exchanger is fitted with 20mm closed cell insulation material - Opt. incompatibility 08.
Discharge line shut-off valve (opt. code 61– Multi-V units only)
Installed on the common discharge pipe of the compressors to facilitate maintenance operation (one discharge
valve per refrigerant circuit).
Suction line shut-off valve (opt. code 62– Multi-V units only)
Installed on the common suction pipe of the compressors to facilitate maintenance operation (one suction valve
per refrigerant circuit).
Discharge and Suction line shut-off valve (opt. code 126– Single-V units only)
Installed on the common discharge and suction pipes of the compressors to facilitate maintenance operation (one
discharge and one suction valve per refrigerant circuit).
Alarm from external device (opt. code 70)
The unit controller is able to receive an external alarm signal. The user can decide whether this alarm signal will
stop the unit or not.
Fans circuit breakers (opt. code 96)
Safety devices that, added to the standard protection devices, protect fan motors against overload and
overcurrent.
Water filter (opt. code 115)
The water filter removes impurities from water by means of a fine physical barrier. It must be installed on the
water pipe connceted to the heat exchanger inlet.
The filter is shipped loose together with two victaulic joints and two counter pipes to be welded on the plants.
NOTE: The installation of the filter is mandatory.
Total Heat Recovery (opt. code 01)
A plate to plate heat exchanger for each refrigerant circuit is installed in series to the condenser coil. There is
no switch nor solenoid valve in the circuit, thus compressor discharged refrigerant is always flowing through the
heat recovery exchanger and hot water production is always available while the chiller is providing cooling.
During the operation in heat recover the condenser coils provides the sub-cooling ensuring the right amount of
liquid at the inlet of the expansion valve. The unit controller manages the condensing temperature set point in
order to maximize the cooling effect and amount of energy recovered.
The amount of heat recovered is about the 80/85% (according to the operating conditions) of the total heat
rejection of the chiller. The chiller performs the control on the recovery circuit, based on the return water
temperature to the unit. Heat recovery capability is subject to cooling load demand (if no cooling demand is
present then no heat recovery is available) - Opt. incompatibility 03. Not available on the following models:
EWAT085B-SSA1, EWAT085B-SLA1, and EWAT085B-SRA1.
Partial Heat Recovery (opt. code 03)
A plate to plate heat exchanger for each refrigerant circuit is installed in series to the condenser coil. There is
no switch nor solenoid valve in the circuit, thus compressor discharged refrigerant is always flowing through the
heat recovery exchanger and hot water production is always available while the chiller is providing cooling.
During the operation in heat recover the condenser coils provides the sub-cooling ensuring the right amount of
liquid at the inlet of the expansion valve. The unit controller manages the condensing temperature set point in
order to maximize the cooling effect and amount of energy recovered.
The amount of heat recovered is about the 15/20% (according to the operating conditions) of the total heat
rejection of the chiller. The chiller performs the control on the recovery circuit, based on the return water
temperature to the unit. Heat recovery capability is subject to cooling load demand (if no cooling demand is
present then no heat recovery is available) - Opt. incompatibility 01. Not available on the following models:
EWAT085B-SSA1, EWAT085B-SLA1, and EWAT085B-SRA1.
Brine Version (opt. code 08) - Opt. incompatibility 29-142
For operation with temperature at the outlet of the evaporator below +4°C the unit must operate with glycol
mixture (with ethylene or propylene glycol) and the Brine Version option must be selected. Brine version
includes additional insulation on evaporator surfaces.
Evaporator flange kit (opt. code 21)
Opt. incompatibility 20.
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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