Identification; Insulating Shells; Non-Return Valve - Grundfos MAGNA1 Installation And Operating Instructions Manual

6.3 Identification

6.3.1 Nameplate
Fig. 18 Example of nameplate
Pos. Description
1 Product name
2 Model
3 Production code, PC, year and week*
4 Serial number
5 Product number
6 Country of manufacture
7 Enclosure class
8 Energy Efficiency Index, EEI
9 Part, according to EEI
10 Temperature class
11 Minimum current [A]
12 Maximum current [A]
13 Minimum power [W]
14 Maximum power [W]
15 Maximum system pressure
16 Voltage [V] and frequency [Hz]
17 QR code
18 CE mark and approvals
* Example of production code: 1326. The pump was produced in
week 26, 2013.
Fig. 19 Production code on packaging

6.4 Insulating shells

Insulating shells are available for single-head pumps only.
Limit the heat loss from the pump housing and
pipes.
Reduce the heat loss from the pump and pipes by insulating the
pump housing and the pipes. See fig. 20.
• Insulating shells for pumps in heating systems are supplied
with the pump.
• Insulating shells for pumps in air-conditioning and cooling
systems, down to -10 °C, are available as accessories and
must be ordered separately. See section
air-conditioning and cooling
Insulating shells increases the pump dimensions.
Fig. 20 Insulating shells
Pumps for heating systems are factory-fitted with insulating
shells. Remove the insulating shells before you install the pump.

6.5 Non-return valve

If a non-return valve is fitted in the pipe system, ensure that the
set minimum outlet pressure of the pump is always higher than
the closing pressure of the valve. See fig. 21. This is especially
important in proportional-pressure control mode with reduced
head at low flow.
Fig. 21 Non-return valve
9.1 Insulating kits for
systems.
13