Submittal Sheet

Table of contents
2
MAGNA3
1. Product description 3
Type key 4
Model type 4
Pump heads in twin-head pumps 4
Performance range, MAGNA3 5
Performance range, MAGNA3 D single-head operation
5
Performance range, MAGNA3 D twin-head operation
6
2. Product range 7
Pump selection 7
3. System applications 9
Heating systems 9
Cooling systems 11
Ground source heat pump systems (GSHP) 13
Solar-heating systems 13
4. Functions 14
Control modes: Quick overview 15
Operating modes 17
Control modes 17
Additional control mode features 22
Multipump modes 24
Flow estimation accuracy 24
Readings on the pump 25
5. Operating conditions 34
General recommendations 34
Closed valve operation 35
Pumped liquids 35
Electrical data 36
6. Construction 37
7. Installation 39
Mechanical installation 39
Electrical installation 39
Connection to power supply, terminal-connected
versions 40
8. Operating the product 42
Operating panel 42
Grundfos GO Remote 42
9. Curve conditions 43
Performance curves 43
QR code on the pump nameplate 43
Markings and approvals 44
10. Performance curves and technical data 45
11. Accessories 63
Insulating kits for applications with ice buildup 63
CIM modules 63
Grundfos GO Remote 64
External Grundfos sensors 65
Cable for sensors 66
Blanking flange 66
Pipe connections 67
12. Product numbers 68
Single-head pumps 68
Twin-head pumps 68
13. Grundfos Product Center 69
Grundfos GO 70