Fault Condition And Maintenance; Residual Risks - FPZ SCL TS Series Instructions Manual

Danger of suction!
Danger due to negative pressure: sudden drawing in of hair and clothing! Start the machine only if properly connected.
Danger due to seizing of the impeller caused by performance values being exceeded
Use the blower, making sure the operating conditions comply with the values given in the SPECIFICATIONS.
Never operate the unit even temporarily with the inlet and/or outlet port closed.
Install a pressure-relief valve or equivalent circuit that can prevent excessive vacuum and/or overpressure and that enables
compliance with the values given in the SPECIFICATIONS in this manual and the RATING DATA.
Turn the unit off immediately in case of any abnormal impeller noise! Then schedule maintenance.
Danger of burns caused by contact with hot surfaces of the unit!
In operation, in conformity with the values given in the "SPECIFICATIONS" and RATING DATA, the blowers / exhausters can reach
high surface temperatures.
Use suitable PPE against the risk of burns. (Also see the section residual risks.)
2.3

FAULT CONDITION AND MAINTENANCE

Before starting routine maintenance on the unit, or for a fault, take the following safety measures:
•
Disconnect the unit from the power supply via the main the switch.
•
Place a sign: "DANGER! Maintenance work in progress." on the system control and the unit's control elements.
•
Allow the unit to cool!
•
Wait until the unit has completely stopped, i.e. that the impeller is not rotating, checking the electric motor fan.
•
Ensure the absence of vacuum or overpressure in the unit and in the piping to be disconnected and that no fluid can escape from
the unit and/or system!
•
Follow the maintenance instructions in this manual.
Danger due to rotating impellers: cutting or shearing.
The rotating impeller can be accessed through the openings of the body and cover of the machine, once the manifolds or blind
flanges are removed!
Never put hands or anything through these openings.
Danger due to electricity!
Improper behaviour can cause serious accidents!
Work on the electrical equipment must only be carried out by qualified and authorised electricians!
Before starting work on the unit or system, take the following precautions:
- disconnect the mains power;
- take steps to prevent the power from being reconnected;
- open the terminal box only after making sure the power is disconnected.
2.4

RESIDUAL RISKS

When designing the machines or systems on which the blower is to be installed, the following residual risks must be considered.
Danger due to hot surfaces!
In operation the unit may overheat, exposing the operator to contact with hot surfaces.
Do not touch the unit when in operation.
Before carrying out any operation after shutdown allow the unit to cool by waiting at least 20 minutes.
Danger due to rotating parts: electric motor cooling fan.
Although designed to reduce any danger, the machine has residual risks linked to the rotation of the fan.
Precautions to be taken:
FPZ-MI-K TS-MOR-USA-15-R03 13 / 79