Removing Corrosion Inhibitor; Operating Conditions; Ambient Temperature And Altitude; Humidity - Grundfos MTS Serie Montage- Und Betriebsanleitung

6.5 Removing corrosion inhibitor

Only necessary for pumps treated with corrosion
inhibitor.
High water-pressure or spray water can
damage bearings.
Do not clean bearing areas with a water or
steam jet.
Using wrong cleaning agent may cause
damage to seals.
Make sure the cleaning agent does not
corrode the seals.
1. Choose among the following cleaning agents:
– benzene
– wax solvents
– diesel
– paraffin
– alkaline cleaner.
2. Remove the corrosion inhibitor from all bare
internal parts of the pump.
3. Dispose of cleaning agents in accordance with
local environmental rules and requirements.
4. For storage times exceeding six months:
– Replace the elastomer parts made of EPDM.
– Check all elastomer parts (O-rings, shaft seals)
for proper elasticity and replace them, if
necessary.

7. Operating conditions

7.1 Ambient temperature and altitude

2.2 - 22 MG
30-200 Siemens
If the ambient temperature exceeds the above
maximum temperatures or the pump is installed at an
altitude exceeding the above altitudes, the motor
must not be fully loaded due to the risk of
overheating. Overheating may result from excessive
ambient temperatures or the low density and
consequently low cooling effect of the air.
If this is the case, it may be necessary to use a motor
with a higher rated output.
16
IE2 +60 3500
IE2 +55 2750
P2
[%]
100
90
80
70
60
50
20 25 30 35 40 45 50 55 60 65 70 75 80
1000
Fig. 10 The maximum motor output (P2)
depends on the ambient temperature
and altitude
Pos. Description
1 2.2 - 22 kW IE2 MG motors
2 30-200 kW IE2 Siemens motors
Example:
Pump with a 2.2 kW IE2 MG motor
If this pump is installed 4750 m above sea level, the
motor must not be loaded more than 88 % of rated
output. At an ambient temperature of 75 °C, the
motor must not be loaded more than 78 % of rated
output. If the pump is installed 4750 m above sea
level at an ambient temperature of 75 °C, the motor
must not be loaded more than 88 % x 78 % = 68.6 %
of rated output.

7.2 Humidity

Relative humidity: Max. 85 %.

7.3 Sound pressure level

Measuring conditions:
• Distance to the pump: 1 m
• Operation: Cavitation-free
• Motor: IEC standard motor
• Tolerance: ± 3 dB(A).
The MTS design allows gentle, even, virtually
pulsation-free and low-noise pumping. The noise
emission lies between 56 and 74 dB(A) depending
on speed, pump size and installation. MTS pumps
operate significantly quieter than rotary-lobe and
centrifugal pumps with comparable performance.
1
2
t [°C ]
2250 3500 4750 m