Pump Heads In Twin-Head Pumps; Identification - Grundfos MAGNA3 D Installation And Operating Instructions Manual

7.3 Pump heads in twin-head pumps

The twin-head pump housing has a flap valve on the outlet side.
The flap valve seals off the port of the idle pump housing to
prevent the pumped liquid from running back to the inlet side. See
fig. 16. Due to the flap valve, there is a difference in the
hydraulics between the two pump heads. See fig. 17.
Fig. 16 Twin-head pump housing with flap valve
Right pump head
H
Fig. 17 Hydraulic difference between the two pump heads
18

7.4 Identification

7.4.1 Nameplate
Left pump head
Q
* Example of production code: 1326. The pump was produced in
1 2 3 4 5 6 7
XXXXXXXXXXXXXXXXXXXXXXXX
TYPE 2
P/N: XXXXXXXX
BOITIER DE TYPE 2
S/N: XXXXXXXX THERMALLY PROTECTED
Nonsubmersible Pump
PC: XXXX X.XX X
Part
For use with maximum 230 F water
Model: X Assembled In USA
16
WARNING:
RISK OF ELECTRIC SHOCK. DE-ENERGIZE EQUIPMENT BEFORE REMOVAL OF COVER & SERVICING. FOR SUPPLY
CONNECTION USE COPPER WIRE SUITABLE FOR 75°C OR EQUIVALENT. THIS PUMP HAS NOT BEEN INVESTIGATED FOR
USE IN SWIMMING POOL OR MARINE AREAS. TO REDUCE THE RISK OF ELECTRIC SHOCK, SEE INSTRUCTION MANUAL
15 FOR PROPER INSTALLATION; ACCEPTABLE FOR INDOOR USE ONLY
AVERTISSEMENT:
3191277 RISQUE DE CHOC ÉLECTRIQUE. Mettre l'équipement HORS TENSION AVANT d'enlever le couvercle et/ou de procéder à l'entretien.
Pour le RACCORDEMENT, UTILISER UN FIL DE CUIVRE pouvant supporter une temperature de 75° C ou équivalent. Cette pompe N'A
PAS ÉTÉ TESTÉE pour utilisation dans des ZONES MARINES OU PRES D'UNE PISCINE. POUR RÉDUIRE LE RISQUE DE CHOC
ÉLECTRIQUE, consulter le manuel d'instructions pour une installation adéquate; ACCEPTABLE pour un usage intérieur SEULEMENT.
Fig. 18 Example of the nameplate
Pos. Description
1 Product name
2 Model
3 Production code, year and week*
4 Serial number
5 Product number
6 Energy Efficiency Index (EEI)
7 Part (according to EEI)
8 Minimum current [A]
9 Maximum current [A]
10 Minimum power [W]
11 Maximum power [W]
12 Maximum system pressure
13 Voltage [V] and frequency [Hz]
14 QR code
15 Approvals
16 Assembled in USA
week 26, 2013.
Fig. 19 Production code on the packaging
8 9 10 11 12 13 14
xxxxxxxxxxxxxxxxxx
I [A] P [W] PSI
1 1
XXXX
X.XX
Min.
X.XX XXXX XXX
Max.
Grundfos Holding A/S, USA - Fresno, California 93727