Grundfos MTR User Manual

MTR
50/60 Hz IEC
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

Grundfos MTR Specifications

General

Flow Rate	Up to 120 m³/h
Frequency	50/60 Hz
Protection Class	IP55
Insulation Class	F
Pump Type	Multi-stage centrifugal pump
Application	pressure boosting
Material	stainless steel
Power Range	0.37 kW to 30 kW
Temperature Range	+120 °C
Pump Housing Material	stainless steel
Supply Voltage	220-240V, 380-415V
Motor Type	Three-phase asynchronous motor

Summary

1. General information

1.1 Hazard statements

Explains symbols and statements for hazardous situations in Grundfos instructions.

5. Mechanical installation

5.1 Mounting the product

5.1.2 Horizontal mounting of version H pumps

6. Electrical connection

6.2 Frequency converter operation

Outlines conditions for using three-phase motors with frequency converters.

7. Starting up the product

7.1 Preparing for startup

7.2 Venting the product

Provides step-by-step instructions for venting the pump to remove air from the system.

8. Servicing the product

8.3 Maintenance

Provides information on maintenance procedures, including checks and intervals.

9. Taking the product out of operation

9.1 Taking the product permanently out of operation

Provides safety warnings for electrical shock and falling objects during permanent removal from service.

10. Fault finding the product

10.1 The motor does not run when started

Lists causes and remedies for a motor that fails to start.

10.2 The motor-protective circuit breaker trips immediately when the power supply is switched on

Identifies causes and solutions for the motor-protective circuit breaker tripping immediately upon power-up.

10.3 The motor-protective circuit breaker trips occasionally

11. Technical data

11.1 Operating conditions

11.1.3 Minimum flow rate

11.1.4 Ambient temperature and altitude

12. Disposing of the product

12. Disposing of the product