Grundfos MTA 110H-180, Installation And Operating Instructions Manual

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5
English (US)
3.2 Type key
4. Operating conditions
4.1 Temperatures
5. Installation
5.1 Mechanical installation
5.1.1 Pump position
Fig. 2 Correct 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 secured to the tank by hexagon head
screws through the holes in the mounting flange.
We recommend to fit a sealing gasket between
pump flange and tank.
For ventilation and cooling, leave a clearance of
minimum 2" (50 mm) above the motor.
The pump is designed for indoor operation only.
5.2 Electrical installation
5.2.1 Electrical connection
Carry out the electrical connection according to
local regulations.
Check that the supply voltage and frequency
correspond to the values stated on the
nameplate.
The operating voltage and frequency are
marked on the pump nameplate. Make sure that
the motor is suitable for the power supply
available.
The motor is supplied with built-in thermal
protection against thermal overload with slow
variation. In order to protect the motor against
short circuit and rapid current raise, the motor
must be connected to a circuit breaker. We do
not recommend operation via frequency
converter.
Example MTA 110 H -180 -A -WB -A -T
Type range
Rated flow [l/min]
Pressure type
Installation length [mm]
Pump version
A = Standard version
Thread type
WB = Internal NPT thread
W = Internal Rp thread
Impeller material
A = PAA GF50
B = Bronze
Suction
T = Top
B = Bottom
Permissible liquid temperature
[°F (°C)] +32 to +140
(0 to +60)
Maximum permissible ambient
temperature during operation
[°F (°C)]
+104
(+40)
Permissible ambient
temperature during storage
[°F (°C)]
-58 to +158
(-50 to +70)
Warning
Position the pump so that persons
cannot accidentally come into
contact with hot surfaces.
Warning
Position the pump so that persons
cannot accidentally come into
contact with the rotating parts.
Caution
Only mount MTA pumps in vertical
position.
TM
05
16
90
44
1
1
Caution
The motor must not be exposed to
direct water/liquid sprays.
Warning
Before making connections in the
pump terminal box, make sure the
power supply has been switched
off.
Min. 2"