Sound Pressure Level; Vibration Level; Installation; Pump Position - Grundfos MTA series Montage- Und Betriebsanleitung

4.1 Sound pressure level

Rated P2
Pump
[W]
MTA 30 100
MTA 60 180
MTA 90 250
MTA 120 400
MTA 200 750
MTA 20H 100
MTA 40H 180
MTA 70H 250
MTA 100H 400

4.2 Vibration level

Vibration velocity RMS [mm/s]
*
Vibration according to ISO 10816-1 class IB

5. Installation

Warning
The pump must be installed so that
persons cannot accidentally come into
contact with the hot surface of the motor.
Warning
The pump must be installed so that
persons cannot accidentally come into
contact with the rotating parts.
6
L [dB(A)]
pA
50 Hz 60 Hz
< 45 < 45
< 45 < 45
< 45 < 45
< 62 < 62
< 62 < 62
< 45 < 45
< 45 < 45
< 45 < 45
< 62 < 62
*
< 1.8

5.1 Pump position

The MTA pumps can only be mounted in
Note
vertical position.
Min. 50 mm
(MTA 120, 200 and 100H)
Fig. 2 Mounting position
The pump is designed for tank mounting in vertical
position. The pump is positioned in a hole cut into
the cover of the tank (upper side) and is secured to
the tank by four or two hexagon head screws through
the holes in the mounting flange. We recommend to
fit a sealing gasket between the pump flange and
tank.
Provide a clearance of minimum 50 mm above the
motor to ensure cooling of fan-cooled motors (MTA
120, 200 and 100H).
The pump is designed for indoor operation only.
The motor must not be exposed to direct
Caution
water/liquid sprays.