57
16.2 Temperature
Liquid temperature:
32°F to +158°F
Ambient temperature: 32°F to +104°F
16.3 Relative humidity
Max. relative humidity: 95%
16.4 Sound pressure
For sound pressure level, see the installation and operating
instructions for the CR pumps.
The sound pressure level for a number of pumps can be
calculated as follows:
L
max.
=L
pump
+ (n – 1) x 3
L
max.
=Maximum sound pressure level.
L
pump
=Sound pressure level for one pump.
n
=Number of pumps.
17. Electrical data
Supply voltage
See nameplate of the Hydro MPC.
Back-up fuse
See the wiring diagram supplied with the Hydro MPC.
Digital inputs
Analog inputs
Digital outputs (relay outputs)
All digital outputs are potential-free relay contacts.
Inputs for PTC sensor/thermal switch
For PTC sensors to DIN 44082. Thermal switches can also be
connected.
18. Related documents
Further product information about Hydro MPC booster sets can
be found in the following documents.
All documents are available in WebCAPS on Grundfos’
homepage, www.grundfos.com.
*
Only relevant for Hydro MPC-E, -ED and -ES booster sets.
** Only relevant for Hydro MPC booster sets with external fre-
quency converter.
19. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. If this is not possible, contact the nearest Grundfos company
or service workshop.
Open circuit voltage:
24 VDC
Closed circuit current:
5 mA, DC
Frequency range:
0-4 Hz
Note
All digital inputs are supplied with PELV voltage
(Protective Extra-Low Voltage).
Input current and voltage:
0-20 mA
4-20 mA
0-10 V
Tolerance:
±3.3% of full scale
Repetitive accuracy:
±1% of full scale
Input resistance, current:
< 250
Ω
Input resistance, voltage, CU 351:
10 k
Ω
±10%
Input resistance, voltage, IO 351:
> 50 k
Ω
±10%
Supply to sensor:
24 V, maximum 50 mA,
short-circuit protected
Note
All analog inputs are supplied with PELV voltage
(Protective Extra-Low Voltage).
Maximum contact load:
240 VAC, 2 A
Minimum contact load:
5 VDC, 10 mA
Note
Some outputs have a common C terminal. For
further information, see the wiring diagram
supplied with the Hydro MPC.
Open circuit voltage:
12 VDC ±15%
Closed circuit current:
2.6 mA, DC
Note
Inputs for PTC sensors are electrically separated
from the other inputs and outputs of the
Hydro MPC.
Title
Frequency
Publication
number
Data booklets
Grundfos Hydro MPC
50 Hz
96605939
Grundfos Hydro MPC
60 Hz
L-BPQ-PG-01
Installation and operating instructions
CR, CRI, CRN
60 Hz
L-CP-TL-003
CRE, CRIE, CRNE, CRKE,
SPKE, MTRE, CHIE *
60 Hz
L-MLE-TL-02
Frequency converter **
50/60 Hz
-
Baldor smart motor
-
MN750
Service kits
Service kits for Hydro MPC
50/60 Hz
96488862
Other documentation
Wiring diagram
-
-
Subject to alterations.
www.motralec.com / [email protected] / 01.39.97.65.10
