Ferro GPA-II Series Instruction Manual page 31

usually start without any adjustments and will match
the system requirements
High comfort
• Low noise of the pump' s and the whole system' s
operation.
Low power consumption
• The circulation pump requires little the power,
with EEI ≤ 0,23
• The benchmark for the most efficient circulation
pumps is EEI ≤ 0,20
3. Operating conditions
3.1. Ambient Temperature
Ambient temperature: 0°C ~ +40°C
3.2. Relative humidity (RH)
Max. humidity: 95%
3.3. Medium - liquid - temperature
Liquid delivery temperature:
+2°C ~ 110°C
In order to prevent condensation in the control box
and the stator, temperature of pump media must be
kept higher than ambient temperature.
3.4. System Pressure
Max pressure 1,0 MPa (10 barów)
3.5. Protection grade
IP42
3.6. Inlet Pressure
To avoid damage caused by cavitations, keep the
pressure at pump inlet on appropriate level. The
maximum allowed inlet pressure cannot exceed
1.0 MPa: Minimum inlet pressures shall be kept as
written below.
3.7. Pump media
Medium
<85°C
Temperature
0.05 bar
Inlet
Pressure
0.5 m
head
Medium shall be, clean, noncorrosive and non-ex-
plosive, without solid particle, fiber or mineral oil
contents. This pump should not be used to handle
flammable liquids such as vegetable oil or gasoline. If
the circulation pump is used to handle high viscosity
liquids, its performance will be impaired. Therefore,
take media viscosity into account when selecting a
pump for your system.
Avoid mixing hydrocarbonderived additives. An-
tifreeze max. 30%. Provide anti-scale system in
domestic water circulating units where the water
hardness TH is higher than 15 °F.
4. Installation of GPA-II series pump
90°C 110°C
0.28 bar 1 bar
2.8 m 10 m
head head
4.1. Installation
• Install GPA-II series motor pump, with arrows indi-
cating the direction of medium flow.
• Install two gaskets must be set at the inlet and the
outlet before installing the pump in the pipeline.
• Pump shaft must be positioned horizontally.
4.2. Position of Junction Box
4.3. Changing the position of Junction Box
The junction box can be rotated in intervals 90°
To change the position of the junction box:
1. Close the inlet and outlet valve, depressurize
the equipment
2. Loosen and remove four hex screws fixed the motor.
3. Rotate the motor to the desired position and
match the openings.
4. Put the four hex screws into the openings and
turn clockwise.
5. Open the inlet and outlet valve.
!
WARNING
The pumped medium may be high temperature
and high pressure. Before removing the hex screws,
drain the system or shut off the valves on the two
sides of the pump.
CAUTION
After changing the position of junction box, the pump
after refilling the system or opening the valves on
the two sides of the pump.
4.4. Heat Insulation of Pump Body
NOTE
Monitor heat intake of pump body and pipeline
Insulate pump body and pipeline to reduce heat
consumption
CAUTION
Do not insulate or cover the junction box or the
control panel
5. GPA-II electrical connection
Electrical connection and protection should be
provided in accordance with local regulations.
!
WARNING
The pump must be connected with earth wire.
The pump must be connected with an external
switch, electrodes spaced at are 3 mm minimum.
• GPA-II series motor pump does not require ex-
ternal protection.
• Verify the supply voltage and frequency with the
nameplate data.
• Connect the pump to mains using the supplied plug
and appropriate cable (not supplied).
• Indicator light on the control panel shows that the
device is powered up.
6. Control panel
6.1. Components (fig. 6. 1 )
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