8
1 GENERAL
1
.1. Applications
F
or faster circulation of water in open- and closed-
circuit domestic (individual) central heating and air-
conditioning systems.
1.2. Specifications
• Temperature range : -10° to +110°C
• Ambient temperature : up to 40°C
• Max. service pressure : 10
6
Pa (10 bar)
• Min. suction pressure :
1,5.10
4
Pa (1.5 m; 0.15 bar)
(m w.g.*) at + 82°C;
:
3.10
4
Pa (3 m; 0.3 bar)
at +95°C;
:
10
5
Pa (10 m; 1bar)
at +110°C
• Antifreeze (Water + glycol): up to 50 %
(whith the exclusion of all other liquids without first
obtaining the agreement).
•Max. flowrate (50 Hz) NXL*** - NYL*** 13 : 2.5 m
3
/h
NXL*** - NYL*** 33 : 3 m
3
/h
CXL 2020 and NXL*** - NYL*** 43 : 3.5 m
3
/h
NXL*** - NYL*** 53 : 4 m
3
/h
NXL*** - NYL*** 63 : 4.5 m
3
/h
* 10,2 m w.g. = 1 bar = 10
5
Pa
2. SAFETY
Read this data sheet carefully before installing and
starting up. Pay special attention to the points
concerning the safety of the equipment for the
intermediate or end user.
This appliance is not intended for use by persons
(including children) with reduced physical, sensory or
mental capabilities, or lack of experience and
knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a
person responsible for their safety.
Children should be supervised to ensure that they do
not play with the appliance.
2.1. Symbols used in the manual
Potential risk that might endanger the safety of
the persons.
Safety instructions relating to electric risks.
If you do not consider this instruction, it
may involve a damage for the material
and its functioning.
3. TRANSPORT AND STORAGE
When taking delivery of the equipment, check that it
has not been damaged in transit. If anything is found
wrong, take the necessary steps with the carrier within
the allowed time.
If the equipment delivered is to be
installed at a later time, store it in a dry
place and protect it from impacts and outside
influences (moisture, frost, etc.).
4. PRODUCTS AND ACCESSORIES
4.1. The pump
With threaded ports or ovales flange according to
model.
The motor has a wet rotor and the bushings are self-
lubricating.
Three-speed or multi-speed, according to model;
manual selection by selector switch.
• Compliance : TF110
• Insulation class : F (155°C)
• Protection : IP42
The motor is self-protected and needs no external
protection.
Frequency 50 Hz 60 Hz
Voltage * (1-phase) 230 V 220/240 V
* standard voltage : tolerance 50 Hz ± 10 % - 60 Hz ± 6 %
4.2. Accessories
supplied : Union’s gasket or flange’s gasket
Recommended :
• Unions or screw-on oval counter-flanges
• Unjamming plug device for motor shaft • Isolating
valves.
5. INSTALLATION
5.1. Assembly (see FIG. 1)
- Make sure that the circulator is accessible.
- Assemble directly on a pipe, preferably vertical, and
if possible on the boiler return circuit; never at the low
point (to protect against deposits).
For connection with the water supply
network, the use of new accessories is
necessary.
- The motor shaft axis must always be horizontal.
- The arrow on the pump casing indicates the
direction of water flow (see FIG. 2).
- Install isolating valves on both sides of the circulator
to facilitate removal and other work on it.
If the circulator must be insulated, we
advise against obstructing the
evacuation notches in the motor flange (see FIG. 2).
5.2. Orientation of terminal box (see FIG. 3)
If necessary, the orientation of the motor, and with it
that of the terminal box, can be changed.
(12 h and 6 h only for NZL***)
- Remove the motor attachment screws and turn the
motor to the desired position.
ATTENTION !
ATTENTION !
ATTENTION !
ATTENTION !
ENGLISH
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