Askoll 3NK/33-6A-D is an innovative synchronous technology pump designed and manufactured for recirculation of domestic hot water.
It can’t be used in heating plants, neither of small dimension, nor in refrigeration and conditioning systems.
Recirculation pump model 3NK/33-6A-D has been designed to pump domestic hot water and also clean liquids that do not
attack its materials and are free of solid particles that could obstruct its moving parts. It must not be used to pump inflammable and/or explosive liquids
The products meet the requirements of the DM 174 of 06/04/2004, laying down rules concerning technical equipment for the treatment of domestic hot water.
Installation, maintenance or repair of the circulation pumps must be performed by authorized persons and is not allowed the use of accessories and spare parts that are not original.
Inappropriate and/or different uses from those indicated in the instructions manual are not allowed, if not previously agreed in writing by Askoll.
The model 3NK/33-6A-D is a wet rotor pump driven by a synchronous motor controlled by an on-board microchip.
MOTOR technical data
Permanent Magnet synchronous motor controlled by an on-board microchip
|
Mains voltage and frequency: |
1 X 230 V (---10%; +6%) - 50 Hz |
|
Insulation class: |
H |
|
Enclosure class: |
IP 44 |
|
Appliance class: |
II |
|
Overload protection: |
Automatic protection with electronic rotor release
Protection through thermal protector |
| |
Protection through thermal protector |
The pump does not require any external protection of the motor
PUMP technical data
|
Allowed temperature field: |
da +2°C a +95°C |
|
Ambient temperature: |
da +2°C a +40°C |
|
Max. operating pressure: |
10 bar |
|
Minimum suction pressure: |
0.5 bar with a temperature of +95°C |
The hydraulic group A6PHG01 of pumps 3NK/33-6A-D is validated by the following European organizations and institutes:
TIFQ (IT)
KTW (DE)
DVGW W270 (DE)
ACS (FR)
WRAS (GB)
The products meet the requirements of the DM 174 of 06/04/2004, laying down rules concerning technical equipment for the treatment of domestic hot water.
Installation, maintenance or repair of the circulation pumps must be performed by authorized persons and is not allowed the use of accessories and spare parts that are not original.
Inappropriate and/or different uses from those indicated in the instructions manual are not allowed, if not previously agreed in writing by Askoll