Askoll ES2 User manual

INSTALLATION AND OPERATION INSTRUCTIONS
EN
Askoll ENERGY SAVING
ES2
ES2 ADAPT
ES2 SOLAR
ES2 PURE

ENERGY SAVING
2
Declaration of conformity
1 Declaration of conformity
We Askoll Sei S.r.l. declare under our sole responsibility that the family of products Askoll
ENERGY SAVING to which this declaration relates are in conformity with the Council Directives on
the approximations of the laws of the EC Member State relating to:
EMC Directive (2004/108/EC)
Standard used: EN 61000-3-2:2006, EN 61000-3-3:2013, EN 55014-1:2006, EN 55014-
2:1997 (including amendments)
LVD Directive (2006/95/EC)
Standard used: EN 62233:2008, EN 60335-1:2012, EN 60335-2-51:2003 (including
amendments)
ErP Directive (2009/125/EC)
Commission Regulations n. 641/2009 and n. 622/2012
Applies only to circulators marked with the energy efficiency index EEI. See the pump
nameplate.
Standard used: EN16297-1:2012 and EN16297-2:2012
RoHS II Directive (2011/65/EU)
Person authorized to compile technical file and empowered to sign the EC declaration of
Conformity.

3
2 Contents
1Declaration of conformity .........................................................................................................2
2Contents..................................................................................................................................3
3Indication of instructions ..........................................................................................................5
4Important safety and installation instructions............................................................................6
5Field of application...................................................................................................................9
5.1 Types of system................................................................................................................9
5.2 Pumped liquids.................................................................................................................9
6Product information................................................................................................................10
6.1 Description of the product...............................................................................................10
6.2 Type key.........................................................................................................................10
6.3 Name plate .....................................................................................................................11
6.4 Components ...................................................................................................................11
6.5 Supply.............................................................................................................................11
6.6 Technical data ................................................................................................................12
7Installation at Site ..................................................................................................................14
7.1 Installation ......................................................................................................................14
7.2 Permissible installation positions.....................................................................................15
7.3 Motor housing regulation.................................................................................................15
7.4 Insulation of pump housing.............................................................................................16
8Electric connection.................................................................................................................17
9Commissioning ......................................................................................................................18
9.1 Start-up of the circulator..................................................................................................18
9.2 Operating elements.........................................................................................................18
9.3 Mode of operation...........................................................................................................19
9.4 Automatic detection of the presence of air - Vent system................................................20
10 Circulator setting ................................................................................................................21
11 Performance curves...........................................................................................................22
11.1 Performance curves - ES2 60.........................................................................................22
11.2 Performance curves - ES2 70.........................................................................................22
11.3 Performance curves - ES2 C 60......................................................................................23
11.4 Performance curves - ES2 C 70......................................................................................23
11.5 Performance curves - ES2 ADAPT 60............................................................................24
11.6 Performance curves - ES2 ADAPT 70............................................................................24
11.7 Performance curves - ES2 SOLAR 60............................................................................25
11.8 Performance curves - ES2 SOLAR 70............................................................................25
11.9 Performance curves - ES2 PURE C 40...........................................................................26

ENERGY SAVING
4
Contents
12 Maintenance.......................................................................................................................27
13 Faults, causes and remedies..............................................................................................27
13.1 Fault finding table ...........................................................................................................27
13.2 Unlocking procedure.......................................................................................................28
14 Spare parts.........................................................................................................................28
15 Disposal.............................................................................................................................28

5
These instructions include information necessary to assemble and use the product correctly.
Besides respecting the general safety regulations, it is necessary to observe all points specifically
and specially marked.
3 Indication of instructions
This manual contains information and prescriptions marked by the following symbols.
The inobservance of the safety provisions marked by the symbol “caution:
hazard” may endanger the safety of people.
The inobservance of the safety provisions marked by the symbol “caution:
electricity” may endanger the safety of people, as well as the integrity of things.
The inobservance of the safety provisions marked by the word “CAUTION”
may endanger the integrity and functionality of the equipment and of the
machines.
CAUTION
The Quick Guide contains following warning symbols.
The circulators are not to be used to transfer flammable liquids such as
gasoline, oils, gas oil or similar liquids.
The circulators are not to be used to transfer aggressive liquids, such as acids
and sea water.
CAUTION
The removal of the screws can cause the output of hot fluids under high
pressure from heating system. Drain the system or close the isolating valves.
CAUTION
High temperature surface. Pay utmost care to prevent people from getting in
contact with the hot surfaces of the circulator.

ENERGY SAVING
6
Important safety and installation instructions
4 Important safety and installation instructions
Prior to installation, read these installation and operating instructions. The installation and
operation should also be in accordance with national regulations and accepted codes of good
practice.
This appliance can be used by children aged from 8 years and above and
persons with reduced physical, sensory or mental capabilities or lack of
experience and knowledge, only if they have been given supervision or
instruction concerning use of the appliance in a safe way and understand
the hazards involved. Children shall not play with the appliance. Cleaning
and user maintenance shall not be made by children without supervision.
To guard against injury, basic safety precautions should be observed,
including the following:
1. Read and follow all safety instructions and all the important notices on
the appliance before installing, using and maintaining the circulator. failure to
do so may cause personal injury or damage to the circulator or installation.
2. Always disconnect electrical supply before putting on or taking off parts
and whilst the equipment is being installed, maintained or handled. Never work
with bare feet and/or with wet hands.
3. To avoid possible electric shock, special care should be taken since
water is used with electrical equipment. Carefully examine the circulator
before and after installation. Do not operate the circulator if it has a damaged
supply cord or enclosure, or if it is malfunctioning or it is dropped or damaged
in any manner. Inspect the circulator periodically.
The circulator should not be electrically supplied if there is water on parts not
intended to be wet.
4. Risk of scalding.
To avoid injury before any servicing operation wait until the water has cooled
inside the circulator. Do not touch the fluid or the circulator when temperature
is higher than 60°C.

7
5. Improper use
This is a circulator to be used in heating plants and for the circulation of clean
water without abrasive particles. This is not a submersible pump.
Do not use this circulator:
With liquids other than water (e.g. flammable liquids, etc.) (EN60335-2-
51);
For handling drinkable water or food related liquids;
For the circulation of domestic water;
In locations where special condition prevail, such as the presence of a
corrosive or explosive atmosphere (dust, vapor or gas) (EN60335-2-
51);
For other than intended use.
Never run the circulator dry. The circulator must be always fully filled with
water when operating.
6. Installation
The circulator must be mounted in a stable/fixed position in a dry, well
ventilated, frost-free, waterproof and protected place, with sufficient ventilation
around it. Make sure that the circulator is securely and correctly installed
before operating it and that there is enough room around it for maintenance
operations, dismantling, checking for free inspection.
The maximum ambient temperature at which the pump is to be used is 40°C
(EN60335-2-51).
To avoid circulator overheating, do not place any object on the circulator itself.
7. Electric connection
IMPORTANT: Connection to the power supply must be effected by means of a
fixed power cable which is fitted with a plug-type connection or an all-pole
isolating switch with a minimum contact opening of 3 mm.
Electrical connection must be carried out only by a qualified electrician and in
accordance with local regulations and both data on the name-plate and the
appropriate diagram inside the terminal box cover.
Follow all safety standards.
Do not connect to mains supply unless circulator is fully and correctly
assembled.
8. Supply cord must be selected following the requirements of EN60335-2-51
Chapter 25. Supply cord must be protected against any kind of mechanical
damage (cuts, abrasion, etc.). It must not touch the pipe or the pump. (EN
60335-2-51). If the insulation of the Supply cord can come in contact with parts
having a temperature exceeding 70°C the supply cord insulation must be
protected, for example, by insulating sleeving having an appropriate
temperature rating. (EN60335-2-51) .
9. Connect circulators only to a mains supply protected by a Residual Current
Device (RCD or Ground-Fault Circuit-Interrupter) with a rated residual
operating current not exceeding 30mA.
10. Any modification to the equipment must be prior agreed upon with and
authorized by the manufacturer. Original spare parts and accessories
authorized by the manufacturer are integral part contributing to the safety of the
equipment and of the machines. The use of not original components or

ENERGY SAVING
8
Important safety and installation instructions
accessories may endanger the safety and causes the termination of the
warranty. A safe operation is assured only for the applications and conditions
described in → 5 Field of application of this manual.
Non-observance of the safety instructions results in the loss of any claims to
damages.
The indicated limit values are binding and cannot be exceeded for any reason
whatsoever.
KEEP THESE INSTRUCTIONS FOR FUTURE REFERENCE.

9
5 Field of application
5.1 Types of system
Models
Uses
ES2
ES C A
Circulation of water/liquids in hot water heating systems of all kind and in
similar systems:
One-pipe systems
Two-pipe systems
Systems with constant or variable flows
Underfloor heating systems
Boiler or primary circuit
Storage tank circuit
ES2 ADAPT
ES2 SOLAR
Circulation of water/liquids in hot water heating systems and in renewable
energy solar thermal systems:
Solar thermal systems
One-pipe systems
Two-pipe systems
Systems with constant or variable flows
Underfloor heating systems
Boiler or primary circuit
Storage tank circuit
ES2 PURE
Domestic hot water circulation, drinking water circulation systems and similar
domestic and industrial circulation systems. This circulator is suitable for
drinking water only.
5.2 Pumped liquids
Clean liquids, not aggressive and not explosive, not containing solid particles, fibers or mineral oils.
In heating systems:
Water for heating according to VDI 2035.
Mixtures of water and glycol with glycol percentages not greater than 30%.
In domestic hot water circulation systems, max. 38°d water hardness.
Any other use is regarded as incorrect use. For the use with other fluids, manufacturer’s
authorization is required.
The circulators are not to be used to transfer flammable liquids such as
gasoline, oils, gas oil or similar liquids.
The circulators must never be used in refrigeration systems, air
conditioning systems and similar installations.

ENERGY SAVING
10
Product information
6 Product information
6.1 Description of the product
The Askoll ENERGY SAVING are a range of innovative wet rotor circulators with an integrated
frequency converter (INVERTER). Askoll ENERGY SAVING circulators combine an advanced
hydraulic system, a high efficiency motor, an intuitive electronic control and an operating software
that allow to perfectly adapt to the various operating conditions and the actual needs of the system.
The motor with electronic control module is mounted on the pump housing by four screws. The
criteria for differential pressure control depend on the set operating mode. In all operating modes,
the circulator adapts to the different loads of the system.
Askoll ENERGY SAVING provides excellent benefits:
1. Energy saving
2. Compact design
3. Ideal performance
4. Easy installation and adjustment
The Askoll ENERGY SAVING circulator range is available in the following versions:
ES2
Standard version with operating modes P, C and min-max.
Pump housing available in cast iron, plastic composite material (C) and
plastic composite material with air separator (C A)
ES2 ADAPT
Premium version with operating modes activeADAPT, P, C and min-max.
Pump housing available in cast iron.
ES2 SOLAR
Solar thermal systems version with operating modes P and min-max.
Pump housing available in cast iron.
ES2 PURE
Domestic hot water circulation systems with operating mode min-max.
Pump housing available in plastic composite material (C)
6.2 Type key