TapFlo CTM20-7 Manual - 1. Installation
1. INSTALLATION
IOM manual CTM mag drive pumps
11
devices against overloads must also protect the motors. Make sure that the motor has
suitable grounding and that it has been connected properly.
2.
OPERATION
2.1.
Start-up
➢
Check manually that the motor is free to turn by moving the motor cooling fan.
➢
Make sure that the piping is not clogged and is free from residues or foreign objects.
Make sure that the liquid flows regularly into the pump.
➢
The pump and piping connected to it, at least the suction pipe, must be full of liquid.
Any air or gas must be carefully released. In case of suction with negative head, fill the
suction piping and check how the bottom valve works. It must guarantee that the liquid
must not flow back, emptying therefore the suction pipe and eventually disconnection
of the pump.
➢
The suction shut-off valve (if any) must be completely open.
➢
The shut-off / regulation valve on the discharge side must be completely closed.
➢
The motor must turn in the same direction as the arrow shown on the pump. The
direction of rotation is always clockwise looking at the pump from the motor side; check
by starting briefly, then looking at the direction of rotation of the motor fan through the
fan lid. If it is wrong, the motor must be stopped immediately. Change the connection
to the terminals of the electric motor (chapter 1.11 “Motor connection”) and repeat the
procedure described above.
➢
Any auxiliary connections must all be connected.
2.1.1.
Starting the pump
Start the electric motor and open the discharge adjustment/shutoff valve gradually until the
desired output has been reached. The pump must not turn more than two or three minutes
with discharge closed. A longer operation in these conditions can damage the pump
seriously.
If the pressure shown on the pressure gauge on the discharge piping does not increase, turn
off the pump immediately and release pressure carefully. Repeat the connection procedure.
If there are changes of flow rate, head, density, temperature or viscosity of the liquid, stop
the pump and get in touch with our technical service.