Maintenance - Foras Sd Installations- Und Gebrauchsanweisungen

board. Conduct the grounding of the motor-driven pump using the designated terminal. Make sure that the
mains power supply has an efficient grounding connection and that the motor-driven pump has been actually
connected to it. The motors of some single-phase motor-driven pumps are protected by a thermal break de-
vice with automatic closure inserted in the winding: before conducting any maintenance and/or repair on the
motor-driven pump disconnect it from the mains power supply as the motor, perhaps on standby following
intervention of the thermal device, may suddenly restart In any case, for both three-phase and single-phase
pumps, it is necessary to install an adequate electrical protection (circuit breaker and differential switch with
an intervention threshold of ≤ 30 mA)that can ensure an omnipolar disconnection from the power supply
with their opening distance between the contacts of at least 3 mm.The maximum admitted shift between the
actual voltage of the power supply and the rated value indicated on the plate of the motor-driven pump is of
±10% for three-phase motor-driven pumps and ±6% for single-phase motor-driven pumps.
Start-up
Before starting up the pump check that the shaft of the motor rotates freely. This is why smaller motor-driven
pumps have a slot for screwdrivers on the end of the shaft on the fan side; in case of blockage, tap gently with
the plastic hammer on the screwdriver inserted in the slot. -Fig. 6- Start the motor-driven pump only after
having filled out the body of the pump and the suction piping with liquid, through the designated hole.-Fig.
1- [for vertical PLUS models loosen the "a" outlet (positioned at the top) to let the air out and move away
the "b" bypass plunger of the drain plug (positioned at the bottom).. Once completed the operation, gently
screw the plunger and the outlet.]. DO NOT operate the machine in dry conditions. Likewise, do not operate
the machine with the flow opening fully closed for exceedingly long periods of time (2-3 minutes): this would
cause the pump liquid to overheat and as a result damage the motor-driven on or some of its components.
We also recommend to ensure that minimum flow equal to or greater than 10% of the rated flow of the pump.
If the machine is operated with no water coming in suction mode, the liquid in the body of the pump may
overheat: pay attention before conducting any operation on the machine itself (draining it, topping it up, etc.).
All motor-driven pumps, except for the PLUS models of the 18 series, should rotate clockwise towards the fan
side of the motor. In the case of three-phase motor-driven pumps check the rotation direction is correct and,
if necessary, reverse the power supply cables of two phases. Instead single-phase motor-driven pumps have
just one direction of rotation, set directly by the manufacturer. Check that the motor-driven from operates
within a rated performance shown on the plagues; otherwise adjust as necessary the lock gates located on the
flow piping and/or the intervention pressures of the pressure switch, if any. For autoclaves check the prechar-
ge pressure of the tank: this should never be greater than the minimum calibrated pressure of the pressure
switch open bracket week recommend a tolerance between the two values of approximately 0,2÷0,5 bar).

Maintenance

The motor-driven pumps do not require any particular maintenance. If there is a danger of frost or should
the machine not be used for extended periods of time, we recommend filling draining the body of the pump,
the tank and the piping-Fig. 2- Before restarting the motor-driven on check that the shaft is not blocked by
scaling or other materials and fill up the body of the pump and the suction piping with liquid. In the case
of intervention on the machine, close the lock gates positions on the suction and flow piping and drain the
liquid in the motor-driven pump through the designated holes on the body of the pump: pay attention to
the features of the liquid pumped (temperature and pressure): Any replacement of the tank and/or other
hydraulic components (flexible hose, fitting, etc.) should be conducted by expert personnel; in any case use
components identical to existing ones.
NOTE Before conducting any maintenance and/or repair disconnect the machine from the power supply.
- This equipment should not be used by children or retarted pople. Only professional person and well
trained individuals are intiteled to use such equipment;
- Keep equipment away from the children for their safety;
- Do not use the devise while people are swimming in swimming pools or in the ponds.
Decommissioning and/or dismantling
No particular procedures are required; please comply with local legal provisions in terms of dismantling, recovery
reuse and recycling of the materials.
Adjusting the pressure switch
Each pressure switch is pre-calibrated by the manufacturer based on the unit on which it is fitted; for any
adjustments, once you have identified the pressure switch model, follow the instructions below making sure
the motor-driven pump always operates within the range of rated performance shown on the plate.
NOTE the connection and stop pressure can be adjusted only when the machine is under pressure.
Single-phase pressure switch "ITALTECNICA PM/5 - PM/12" - "SQUARE D FSG" - "CONDOR MDR 2/6" models
Remove the lid to access the control nuts. By acting on the "P" calibration nut (or nuts), you adjust the con-
nection pressure (also called minimum): a clockwise rotation (of both in the CONDOR MDR 2/6) increases the
value, while an anticlockwise rotation decreases it. The "ΔP" nut instead controls the pressure differential: By
rotating clockwise the calibration differential increases and, as a result, once the connection pressure is fixed,
also the stop pressure value (also called maximum) increases.
"CONDOR 4S/6" model three-phase pressure switch
Remove the lid to access the control nuts/screws. The "P" screw controls the stop pressure (also called maxi-
mum): a clockwise rotation increases the value, while an anticlockwise rotation decreases it. The "ΔP" screw
instead controls the pressure differential: by rotating clockwise the calibration differential increases and, as a
result, the value of the connection pressure decreases (also called minimum).
"CONDOR 5/5K" model three-phase pressure switch
This is three-phase pressure switch connected with an overload cut-out controlled by two buttons located
on the lid of the appliance. Do not tamper with the "I" screw that controls the current settings of the over-
load cut-out: This is already been adequately pre-calibrated by the manufacturer. Remove the lid to access
the control handwheel. By acting on the handwheel itself, you can adjust the "P" stop pressure (also called
maximum): a clockwise rotation increases the value, while an anticlockwise rotation decreases it. The "ΔP"
pressure differential is controlled by pressing the handwheel downloads so that it is released from the split
pin: by rotating anti clockwise the calibration differential increases, i.e. the value of the connection pressure
(also called minimum) decreases, while it increases by rotating it clockwise.
JA/JR60, KM100, P3-5.../2-3, P7.../2
JR80, PA80-100, JGR, JG, JXFR, JXF, MON, JXM
P3.../4-5-6, P5.../4, P7.../3, P3.../7, P5.../5-6-7, P7.../4-5
JA150÷300, PA150-200, JAM150÷300
PUMP TYPE PRE-CALIBRATION min÷max (bar)
1.4 ÷ 2.8
2.5 ÷ 4
3.5 ÷ 5