Commercial air conditioning
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Industrial heating
Standard pumps according to ISO 2858 with frequency-controlled motors
Non-self-priming, single-stage, centrifugal pump designed according to ISO 5199 with dimensions and rated
performance according to ISO 2858. Flanges are PN 16 with dimensions according to EN 1092-2. The pump has an
axial suction port, a radial discharge port and horizontal shaft. It is of the back pull-out design enabling removal of the
motor, coupling, bearing bracket and impeller without disturbing the pump housing or pipework.
The unbalanced rubber bellows seal is according to DIN EN 12756.
The pump is fitted with a foot-mounted, fan-cooled, permanent-magnet synchronous motor. Pump and motor are
mounted on a common base frame.
The motor includes a frequency converter and PI controller in the motor terminal box. This enables continuously
variable control of the motor speed, which again enables adaptation of the performance to a given requirement. The
product’s minimum efficiency index (MEI) is greater or equal to 0.70. This is by the Commission Regulation (EU)
considered as an indicative benchmark for best-performing water pump available on the market as from 1 January
2013.
An external sensor can be connected if controlled pump operation is required for flow, differential pressure or
temperature control.
The operating panel on the motor terminal box features a four-inch TFT display, push-buttons and the Grundfos Eye
indicator.
The display gives an intuitive and user-friendly interface to all functions.
The push-buttons are used to navigate through the menu structure to access pump and performance data on site and
enable setting of required setpoint as well as setting of pump to “Min.” or “Max.” operation or to “Stop”.
The Grundfos Eye indicator on the operating panel provides visual indication of pump status:
• “Power on”: Motor is running (rotating green indicator lights) or not running (permanently green indicator lights)
• “Warning”: Motor is still running (rotating yellow indicator lights) or has stopped (permanently yellow indicator
lights)
• “Alarm”: Motor has stopped (flashing red indicator lights).
Communication with the pump is also possible by means of Grundfos GO Remote (accessory). The remote control
enables further settings as well as reading out of a number of parameters such as “Actual value”, “Speed”, “Power
input” and total “Power consumption”.
Pump and motor are mounted on a common steel base frame in accordance with ISO 3661. The back pull-out design
makes it possible to service the pump when the pump housing is still connected to the inlet and discharge pipes.
1) Remove the bolts in the bearing bracket support foot and motor foot.
2) Remove the bearing bracket and the motor from the pump housing.
Pump
The pump housing has both a priming and a drain hole closed by plugs. The impeller is a closed impeller with
double-curved blades with smooth surfaces. The impeller is statically balanced according to ISO 1940-1 class G6.3
and hydraulically balanced to compensate for axial thrust.
The pump is fitted with an unbalanced rubber bellows seal with torque transmission across the spring and around the
bellows. Due to the bellows, the seal does not wear the shaft, and the axial movement is not prevented by deposits
on the shaft.
Seal faces:
• Rotating seal ring material: carbon graphite, metal-impregnated
• Stationary seat material: silicon carbide (SiC)
Due to the favourable lubricating properties of carbon graphite, the seal is suitable for use even under poor lubricating
conditions, such as hot water.
However, under such conditions, wear on the carbon graphite face can be expected, and seal life will be reduced .
The material pairing is not recommended for liquids containing particles as this will result in wear on the SiC face.
Secondary seal material: EPDM (ethylene-propylene rubber)
EPDM has excellent resistance to hot water. EPDM is not suitable for mineral oils.
The shaft is made of stainless steel and has a diameter of 32 mm where the coupling is mounted.
The pump uses a standard coupling between the pump and motor shaft.
Motor
The motor is a totally enclosed, fan-cooled motor with principal dimensions to IEC and DIN standards. Electrical
tolerances comply with IEC 60034.
The motor efficiency is classified as IE5 in accordance with IEC 60034-30-2.
The motor requires no external motor protection. The motor control unit incorporates protection against slow- and
quick-rising temperatures, e.g. constant overload and stalled conditions.
The terminal box holds terminals for these connections:
• one dedicated digital input
• two analog inputs, 0(4)-20 mA, 0-5 V, 0-10 V, 0.5 – 3.5 V
• 5 V voltage supply to potentiometer and sensor
• one configurable digital input or open-collector output
• Grundfos Digital Sensor input and output
• 24 V voltage supply for sensors
• two signal-relay outputs (potential-free contacts)
• GENIbus connection
• interface for Grundfos CIM fieldbus module.
Further product details
Cast-iron parts have an epoxy-based coating made in a cathodic electro-deposition (CED) process. CED is a
high-quality dip-painting process where an electrical field around the products ensures deposition of paint particles as
a thin, well-controlled layer on the surface.
Technical data
Controls:
Frequency converter: Built-in
Pressure sensor: N
Liquid:
Pumped liquid: Water
Liquid temperature range: 0 .. 120 °C
Selected liquid temperature: 20 °C
Density: 998.2 kg/m³
Technical:
Pump speed on which pump data are based: 2895 rpm
Rated flow: 116.8 m³/h
Pump with motor (Yes/No): Y
Rated head: 35.38 m
Actual impeller diameter: 177 mm
Nominal impeller diameter: 160
Type of impeller: Standard
Code for shaft seal: BAQE
Mechanical seal type: Single
Curve tolerance: ISO9906:2012 3B
Bearing design: Standard
Materials:
Pump housing: Cast iron
EN-GJL-250
ASTM class 35
Wear ring: Brass
Impeller: Cast iron
EN-GJL-200
ASTM class 30
Internal pump house coating: CED
Shaft: Stainless steel
EN 1.4301
AISI 304
Installation:
Range of ambient temperature: -20 .. 50 °C
Maximum operating pressure: 16 bar
Pipe connection standard: EN 1092-2
Type of inlet connection: DIN
Type of outlet connection: DIN
Size of inlet connection: DN 100
Size of outlet connection: DN 80
Pressure rating for connection: PN 16
Coupling type: Flexible w/o spacer
Base frame design: EN/ISO
Code for base frame: 6 ST
Grouting (Yes/No): N
Electrical data:
Motor type: 160LB
Rated power – P2: 18.5 kW
Mains frequency: 50 Hz
Rated voltage: 3 x 380-480 V
Rated current: 33.0-27.8 A
Cos phi – power factor: 0.94-0.92
Rated speed: 360-4000 rpm
IE Efficiency class: IE5
Motor efficiency at full load: 92.8 %
Number of poles: 2
Enclosure class (IEC 34-5): IP55
Insulation class (IEC 85): F
Motor No: 92875515
Bearing insulation type N-end: Steel Bearing
Others:
Minimum efficiency index, MEI ≥: 0.70
Net weight: 238 kg
Gross weight: 253 kg
Shipping volume: 0.545 m³
Country of origin: HU
Custom tariff no.: 84137059
