![Daikin EWAT290B-SRB1 [13/62] Electrical options on request](/img/pdf.png)
Daikin EWAT290B-SRB1 [13/62] Electrical options on request
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coating that enhance the resistance to the corrosion. The treatment is recommended in all application where
moderate risk of corrosion exist (eg: urban, costal, industrial environments) - Opt. incompatibility 139.
Electrical options – On request
Compressor thermal overload relays (opt. code 11 – Multi V units only)
Available on Multi V units only. - Opt. incompatibility 95.
Under over voltage control (opt. code 15)
Electronic device that monitors and displays input voltage. It stops the chiller in case of phase loss, wrong phase
sequence, or voltage exceeding minimum and maximum allowed values.
Energy meter (opt. code 16 – Multi V units only)
Device installed inside the control box that displays chillers’ electrical power parameters such as input line
voltage and phase current, input active and reactive power, active and reactive energy. An integrated RS485
module allows a Modbus communication to an external BMS.
Speedtrol (opt. code 42 – Multi V units only) - Opt. incompatibility 99-142a-161.
Continuous fan speed regulation on the first fan (VFD driven) of each circuit. It allows unit operation down to -
18ºC (available for standard and low sound version).
Evaporator flow switch (opt. code 58)
Supplied separately to be wired and installed on the evaporator water piping (by the customer). The installation
of the flow switch in mandatory.
Compressors circuit breakers (opt. code 95)
Safety devices that include in a single device all safety functions otherwise provided by standard fuses and
optional thermal relays, such as protection against overcurrent, overload, current unbalance - Opt.
incompatibility 11.
Fans speed regulation +fans silent mode (opt. code 99)
Fans speed regulation: continuous modulation of the fans’ speed for optimal condensation control at low ambient
temperatures.
Fans silent mode: This feature allows the user to set up customized time bands to reduced fans’ speed rotation
and therefore sound emission in those areas where quiet is a mandatory requirement during specific time of the
day (e.g. night operation).
Note: option 99 is standard on Single V units (phase cut).
Note: option 99 is standard on Multi V units reduced sound (inverter).
Ground fault relay (opt. code 102 – Multi V units only)
To shut down the unit in case of a ground fault condition is detected.
Inverter kit for pumps:
-
INVERTER KIT FOR 1 CENTR PUMP LOW LIFT (opt. code 120e)
-
INVERTER KIT FOR 1 CENTR PUMP HIGH LIFT (opt. code 120f)
-
INVERTER KIT FOR 2 CENTR PUMP LOW LIFT (opt. code 120g)
-
INVERTER KIT FOR 2 CENTR PUMP HIGH LIFT (opt. code 120h)
the Inverter kit must be associated with the corresponding hydronic kit (opt.code 78/79/80/81). It is standardly
not compatibile with kit pump + water tank. Contact factory to evaluate feasibility.
The inverter kit can be used for the following purposes:
- Adjusting the water flow rate during unit commissioning.
- Control the pump speed via external input from Building Management System (BMS)
For this application a 0-10V signal for the pump speed must be provided from the plant manager according to
the specific control strategy of the plant. The water must be within the minimum and maximum value allowed
for the unit (refer to the “Operating limit” chapter). The change in water flow rate must not be exceed more
than 10% of the design water flow rate per minute.
- Set a “thermostat off” pump speed. Providing the unit with the inverter kit for the on-board pump is
possible to manage two different water flow settings. A setting for water flow during the "Thermostat ON" mode
(when the chiller is actually providing cooling to the plant), and a set for the “thermostat off” mode (when the
plant load is satisfied and the compressors are waiting to start). This feature allows to achieve energy saving
on plant operating cost by reducing the speed of the pumps when the chiller has reached the set point.
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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