Daikin ECORICH EHU2504 - Chapter 3. PRODUCT SPECIFICATIONS AND CONDITIONS OF USE; 3.1 Product Specifications

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PIM00504
Chapter 3.  PRODUCT SPECIFICATIONS AND CONDITIONS OF USE
3.1 Product Specifications
Product Model EHU1404 EHU2504 EHU2507 EHU3007
Power rating (kW) 0.75 1.5 2.2 2.8
Maximum operating pressure
(MPa)
4.0 7.0
Operating pressure adjustment
range (MPa)
1.5 - 4.0 1.5 - 7.0
Maximum flow rate (∗1) (L/min)
Maximum rotational speed (rpm)
15.2
3800
25.1
4400
28.5
5000
Operating flow rate adjustment
range (∗1) (L/min)
2.5 - 15.2 3.5 - 25.1 3.5 - 28.5
Tank capacity (L) 18
Mass (kg) 26 29
External dimensions (mm)
432 (w) × 328 (d) × 487 (h)
Coating color
Black ∗ Purchased parts, etc.: standard color of the equipment
manufacturer
Discharge port size Rc3/8 1 location
Return port size Rp1/2, 2 ports (in the oil)/1 port (above the oil level)
Return port size (above the oil
level)
Rp1, 1 port
Digital input (3 channels)
Photo coupler insulation, DC +24 V (max. 27 V) 5 mA,
positive or negative common
Digital output (1 channel)
Photo coupler insulation, open collector output,
DC+24 V (max. 27 V) 50 mA max., positive or negative common
Alarm output (1 channel)
Relay output, contact capacity: DC30 V max. 1A, ALM NO: open
when abnormal/ALM NC: closed when abnormal/COM: common
Communications port
(RS-485/RS-422)
Serial communications port
∗ Can be used only with communications option
Communications port
(UART): Communications port for service
∗ For communications with a personal computer, a dedicated USB-
UART communications converter is required.
*1 The maximum flow rate is the theoretical value, not the guaranteed value.
CAUTION
 The factory default setting is the maximum flow rate.
 The pressure and flow rate can be set beyond the adjustment ranges stated above, but be
sure to use the product within the operating pressure range and operating flow rate range
stated above.
 This hydraulic unit incorporates a high-pressure safety valve, and its factory default pressure
setting is 1.5 MPa. Adjust this setting according to the actual pressure used, by following the
procedure given in “High-pressure Safety Valve Adjustment Instructions”.
The same applies when there is a need to minimize the surge pressure when an actuator
operates.
 Restrict continuous use at the maximum pressure to 5 L/min or less.
 Refer to the specification documents (External dimension sheet) for other specifications.