NCE    
   
 

 

Component Pos. Material
Pump casing 1 Cast iron GJL 200 EN 1561
Impeller 2 Composite
Shaft 3 Stainless steel
Bearings 4 Carbon
Thrust bearing 5 Ceramic
Rotor 6 Composite / Ferrite
Winding 7 Copper wire
Electronic card 8 -
Plug 9 Composite
Gasket 10 EPDM
Construction  

With the new NCE series Calpeda wishes to introduce a new standard in domestic hot water circulating systems.
Only one high efficiency, energy saving variable speed circulating pump drived by a permanent magnet synchronous motor (pm) controlled by one on board inverter suitable for small domestic heating systems.
Brass or cast iron unions on request.

Benefits
• energy efficiency class: A
• high savings
• low consumption
• n flat curves in a wide working area
• low noise
• easy adjustement of right working point
• compact dimensions
• self cleaning

Benefits to distribution
• only one circulating pump to use and install
• less trasportation and logistic cost
• less spare parts requirement
 
 
Motor
Synchronous motor with permanent magnet.
- Motor: variable speed
- Standard voltage: single-phase 230 V (-10%;+6%)
- Frequency: 50 Hz - Protection: IP 44
- Insulation class: H - Class II appliance
- Overload protection (jammed rotor):
1) automatic protection with electronic rotor release
2) Overload thermal protector
- Cable : phases and neutral
- Constructed in accordance with:
  EN 60335-1,
  EN 60335-2-51
Technical Data
- Liquid temperature from +2 °C to +95 °C
- Ambient temperature from 0 °C to +40 °C
- Maximum permissible working pressure: 6 bar
- Storage: -20°C/+70°C max. relative humidity 95% at 40 °C
- Certifications: in conformity with CE requirements
- Sound pressure ≤ 43 dB (A).
- Minimum suction pressure: 0,5 bar at 95 °C
- Maximum glycol quantity: 40%
- EMC according to:
  EN 55014-1,
  EN 61000-3-2,
  EN 55014-2
- Connections: threaded ports ISO 228: G 1 1/2, G 2
Warranty
One year (as per our general sales conditions).
  Characteristic Curves  
 

 
 

 
  CONSUMPTION  
  The circulating pump NCE is included in the class A of energy
efficiency with an energy saving of about 80% compared with a traditional circulating pump.		 .  
  RELIABILITY  
  The patented "squared chamber" eliminates any possibility of rotor stoppage.
  1. The operational characteristics of the synchronous motor allow to larger gap between stator and rotor, compared to an asynchronous motor, without any reducion of efficiency.
  2. Being a permanent ceramic magnet, the rotor is less subject to limestone deposit than traditional metal rotors.
  3. The "intelligent" electronics can sense any rotation difficulties: in such circumstances the motor is turned over several times at a higher torque than in traditional motors.

Always guaranteeing proper starting.

 
  CONTROLS  
  DISPLAY
- green led : correct operation
- pulse green led : adjustement of working point
- red led :possible fault ( ex: locked-rotor)

SELECTOR
A wide working area with n curves allowing to select the correct operation point of the installation.
Choosing the correct operation point
- highest speed: max
- lowest speed: min
black dot factory setting: equivalent to the operating point of 80% of the domestic applications (3.5 m at 1000 l/h).
Example :
5 is equivalent to the curve of a circulating pump of 5 m
(4 m at 1000 l/h)

 
  SAFETY AND PRACTICALITY  
  Reliable electronics guarantee the perfect operation of the electropump with double electrical insulation Class II motor
for greatest safety for users.
The reduced temperatures of the motor provide for the use of materials, which allow for an electropump with high electrical insulation, by eliminating the risk of dangerous electrical losses when compared to traditional pumps.

Interchangeability
The CALPEDA circulating pump has the same axis base of other traditional pumps.