Centrometal HPe2/4CM User manual

Guidebook for installation, handling and maintenance –ENG
Electric heater HPe2/4CM
Electric heater for outdoor and indoor installation
FU-HPe2/4CM-10/2020

CONTENT
1. Description of symbols and instructions for safe work
2. Device data
2.1. Typology
2.2.1 Statement on compliance
2.2.2 Regular application
2.3 Instructions for mounting
2.4 Instructions for work
2.5 Anti-frost protection and inhibitors
2.6 Norms, regulations and standards
2.7 Tools, materials and auxiliary measures
2.8 Minimum distances and Inflammability of construction materials
2.9 Product description
2.10 Waste disposal
2.11 Scope of delivery
2.12 Factory data plate
2.13 Transport
3. Dimensions and technical data
3.1 Dimensions of HPe2/4CM
3.2 Components
3.3 Technical data of HPe2/4CM
4. Device installing
4.1 Warnings before mounting
4.2 Distances
4.3 Front door opening procedure for HPe2/4CM
4.4 Montage HPe2/4CM on wall
4.5 Execution of hydraulic connections
4.6.1 Installation filling with water and waterproof testing
4.6.2 Heating pump air emission and de-blocking
4.6.3 Venting and installations
5. Electrical connection
5.1 Connection of HPe2/4CM to three-phase mains
5.2 Connection of HPe2/4CM to mono-phase mains
5.3 Connecting the power cable - Safety circuit
5.4 Electrical schemes
6. Commissioning
6.1 Before commissioning
6.2 First start
6.3 Start-up log
7. Operating the electric heater
7.1 Operating instructions
8. Cleaning and maintenance
8.1 HPe2/4CM cleaning
8.2 Testing of working pressure, water replenishment and venting of the installation
8.3 Add the water and vent installation
8.4 Inspection and maintenance log
9. Environment protection / Waste disposal
10. Troubles and troubleshooting
11. Product data sheet (in accordance with EU regulation no. 811/2013)

Description of symbols and instructions for safe work
1. Objašnjenje simbola iuputstva za siguran rad
1.1 Description of symbols
Warnings
Warnings in text are marked by gray triangle,
background warnings are framed
Electric shock danger is marked by lightning
symbol in warning triangle
The signal words at the beginning of the warning mean the
way and level of consequences if protective measures are
not applied
NOTE means that smaller material damages may occur
CAUTION means that smaller to middle injuries may occur
WARNING means that heavy injuries may occur
DANGER means that heavy injuries may occur
Important information
Important information, meaning no danger for people and
things, are marked by the symbol displayed in the following text.
These are limited by lines, above and below the text.
Further symbols
Symbol
Meaning

Action step

Directives to other places in document or to other
documents
.
•
Enumeration/Entry from the list
–
Enumeration/Entry from the list (2.)
Table 1: Symbols
1.2 Instructions for safe work
General safety instructions
Non-compliance with safety instructions may cause heavy
injuries –or lethal outcomes and material damages and
environment pollution.
Electrical installation should be examined by an expert
prior to the device assembly.
All electric works should be performed by authorised
person in accordance with corresponding regulations.
Commissioning and maintenance and repairs should be
done by authorised service only.
Technical acceptance of installations should be performed
in accordance with corresponding regulations.
Danger because of disrespecting security rules in alert
situations, for example fire.
Never expose your-self to life danger. Own security
always has priority.
Damage occurred because of wrong handling
Wrong handling may lead to injuries of persons and/or
installation damage.
Make sure that device is available only to professionals.
Installation and commissioning, and maintenance and
repair, must be done only by service authorised for
electrical works.
Installation and commissioning
Placement of device can be done only by authorised
service.
Boiler can be turned on only if installation is with
corresponding pressure level and working pressure
regular. Do not close security valves in order to avoid
damage caused by too high pressure. During warming
water can leak on security valve of the hot water circuit
and hot water pipes.
Install this device only in the room where freezing is not
possible to occur.
Do not store or dispose inflammable materials or liquids in
the vicinity of this device.
Keep safe distance in accordance with valid regulations.
Life threat of electric power shock
Secure electric power connecting is done by authorised
service! Comply with connecting scheme
Prior to any work: turn off electric power supply. Secure
against accidental turn on
Do not mount this device in moist rooms.
Control examination /Maintenance
Recommendation for user: conclude agreement on
maintenance with authorised service to perform annual
maintenance and controlling examinations
User is responsible for safety and environmental acceptance
of the installation
Comply with safety work instruction as given in the chapter
Cleaning and Maintenance.
Authentic spare parts
There shall not be undertaken any responsibility for damage
occurred due to spare parts not delivered by the
manufacturer
Use onlyoriginal spare parts.
Material damages due to freezing
When there is damage due to freezing drain water from the
boiler, tank and pipelines for heating. Danger of freezing does
not exist only when entire installation is dry.
Instructions for service
Inform users about mode of work of device and instruct them
in maintenance
Inform users not to perform any modifications or repair on
their own
Warn users that children cannot stay near heating
installations
Fill in and submit Commissioning log and Handover log
attached in this document
Deliver technical documentation to the user.
Waste disposal
Dispose packaging materials in ecologically Acceptable
manner
Secure device in ecologically acceptable manner and in
authorised place
Cleaning
Clean outside of device with wet cloth.

Device data
2. Device data
These instructions contain important information about safe
and professional assembly, commissioning and
maintenance of the boiler.
These instructions are for installers who have knowledge for
work with heating installations due to their professionalism
and experience.
2.4 Instructions for work
When working with heating installation follow next
instructions:
Boiler should work in working range up to max
temperature of 80°C and min pressure of 0.7 bars to max
pressure of 2.6 bars, which should be controlled on
regular basis.
2.1 Typology
These instructions are related to the following kind of device:
HPe2/4CM
6 kW
2.2.1 Statement on compliances
We hereby state that devices are tested in accordance with
the following directives: 2014/35/EU (low voltage directive,
LVD) and 2014/30/EU (electro-magnetic compatibility
directive, EMC).
2.2.2 Regular application
HPe2/4CM may only be used in conjunction with a heat
pump, as a supplementary heat source controlled via a
heat pump. Any other use will be considered improper
and the manufacturer assumes no responsibility for
damage caused by improper use.
To ensure proper use, it is necessary to follow the operating
instructions, data on the nameplate and technical data.
Boiler should be handled only by adults who are familiar with
instructions and work of the boiler
Do not close safety valve
Inflammatory objects must not be put on the boiler surface
or close to it (within safety distance)
Boiler surface clean only with non-inflammatory products
Inflammatory substances do not keep in the room for
boiler installation (e.g. petroleum, oil, etc.)
During the work no one lid must be open
Keep safe distance in accordance with regulations
2.5 Inhibitors and anti-frost products
It is not allowed to use protective products against frost
neither inhibitors. Id it is not possible to avoid anti-frost
protection then should use anti-frost products allowed for
heating installations.
Anti-frost products:
Reduce lifetime of the boiler and its parts
Reduce heat transmission
2.3 Instructions for mounting
Use only original spare parts of the manufacturer or
spare parts approved by the manufacturer. There
shall not be any responsibility for damages caused by
spare parts which have not been delivered by the
manufacturer.
When mounting heating installations keep with the following
instructions:
Valid regulations in construction industry
Regulations and norms on safety-technical equipment of
heating installations
Changes on the place of mounting according to valid
regulations propisima

Device data
2.6 Norms, regulations and standards
This product is in compliance with the following regulations:
EN 50110-1:2003 –Handling and work with electrical
installations
EN 55014:2001 –Electrical-magnetic compatibility –
conditions for consumers’ devices for households, electric
devices and similar devices
EN 60 335-1+ed.2:2003 Electric devices for households
EN 60 335-1+ed.2 zm.A1:2005 Electric devices for
households
EN 61000-3-2 ed.3:2006 Electrical-magnetic compatibility
(EMC) –emission limits for harmonic power
EN 61000-3-3:1997 Electrical-magnetic compatibility
(EMC) –Law on determination of fluctuation of voltage and
frequency of low power distributive network
2.6 Tools, materials and auxiliary measures
Standard tools for heating installations, water supply and
electric-installations are needed for mounting and maintenance
of the boiler.

2.8 Minimum distances and burnable 2.9 Product description
construction materials
The HPe2/4CM is designed to support a heat pump and can
only work in conjunction with a heat pump. This device does
not have a working thermostat (it has a protective thermostat),
but forwards the information from the temperature sensor to
the thermoregulator of the heat pump. The heat pump
thermostat decides whether and when the electric heater will
be switched on.
HPe2/4CM plays an important role in the proper operation of
the heat pump. Its activation is necessary (sometimes
desirable) in the following situations:
• If the water temperature is less than ≈20 ° C, the heat pump
will not be able to start without preparation (heating) using an
electric heater (it is necessary to turn on the electric
HPe2/4CM)
• Defrosting when the air temperature is low can be long-
lasting or impossible without the help of an electric heater (it is
necessary to turn on the electric HPe2/4CM).
• On extremely cold days when the heat pump COP has the
lowest value, HPe2 / 4CM is switched on as a backup to keep
the heating of the building at a comfortable level (preferably
switching on the electric HPe2/4CM).
• In case of failure (servicing) of the heat pump, the HPe2/4CM
takes over the heating of the building - until the pump is
operational (preferably switching on the electric HPe2/4CM).
For these reasons, this device does not have the option of
manual on / off, because in that case - if it is manually turned
off, the heat pump could enter the blockage. The HPe2 / 4CM
must always be ready for operation, and the decision to switch
on is made by the heat pump.
HPe2/4CM is designed for wall mounting. The HPe2/4CM is
wall-mounted using the supplied mounting kit.
The design of the HPe2/4CM is such that it allows wall
mounting so that the hydraulic connections are on the left or
right side of the HPe2/4CM with easy and fast switching of
the INFO panel from one side of the formwork to the other.
Table 2: Ignitable materials and composition of
elements according to DIN 4102 The basic components of HPe2/4CM are:
Depending on valid regulations, other minimum distances
could be applied, different than mentioned below.
Comply with regulations of electrical installations and
minimum distances which are in force in the subject
country.
Minimum distance for heavy inflammable and self-
extinguishing materials is 200 mm.
The minimum distance for flammable materials is 400 mm.
• HPe2/4CM body with electric heaters
•Device formwork (HPe2/4CM)
•Switchboard with automatic
•Info panel
The HPe2/4CM body consists of a welded heat-insulated
sheet steel vessel in which an electric heater is mounted. The
built-in thermal insulation is vapor-tight, reduces heat loss and
prevents condensation on the HPe2/4CM vessel. This allows
the HPe2/4CM not to have to be disconnected from the mains
(by bypass valve) when the heat pump is running in cooling
mode.
The safety thermostat and temperature sensor are located on
top of the HPe2/4CM vessel.
HPe2/4CM formwork is made of pickled sheet metal,
protected by electrostatic plasticization.
A switchboard with safety assembly, connection terminals and
heater switch-on relays is available after dismantling the
HPe2/4CM door. On the info panel there are signal diodes
that indicate the operation of the heater.
Device data
Inflammability of components
A
Non-inflammable
A 1:
Non-inflammable
Asbestos, stone, wall tiles, baked
clay, plaster (with no organic
additives)
A 2:
With smaller
quantity of
added elements
(organic
components)
Plaster cardboards plates, base
felt, glass fibres, plates of
ACUMIN, ISOMIN, RAIOT,
LOGNOS, VELOX, AND
HERACLITUS
B
Inflammable
B 1:
Hardly inflammable
Beech, oak, veneered wood, felt,
HOBREX, VERSALIT and
UMAKARTplates
B 2:
Normally
inflammable
Pine, larch and spruce, veneered
wood
B 3:
Inflammable
Asphalt, cardboard, cellulose
materials, tar-paper, plywood
plates, cork plates, polyurethane,
polystyrene, polyethylene, floor
fibre materials

2.10 Waste disposal
 Dispose packaging materials in ecologically sound
manner
 Components that should be changed dispose in ecologically
sound manner
2.11 Delivery scope
When delivery the HPe2/4CM, stick to the following:
 Check if packaging is damaged during delivery
Check if delivery is complete
2.12 Factory plate
Factory data plate is placed on the external side of the
HPe2/4CM and contains the following technical data:
HPe2/4CM type
Batch / Catalogue number
Power
Input power
Maximum temperature
Working pressure
Mass
Electric power supply
Protection grade
Manufacturer
2.13 Transportation
NOTE: Transportdamages
Pay attention on instructions for transportation
on packaging
Use adequate transportation means, i.e. carts for
bags with tighten strip.
The product should be in horizontal position
during transportation
 Avoid shocks or collisions
Packed HPe2/4CM put on carts for bags if needed
secure it with strip and drive it to its mounting place.
Remove packaging.
Remove packaging materials and dispose it in
ecologically acceptable manner.
Device data
Part Pieces
Electric heater HPe2/4CM
1
Assembly Set
1
Instructions for handling
1

Dimensions and technical data
3. Dimensions and technical data
3.1 Dimensions HPe2/4CM
Image 1b: Dimensions HPe2/4CM
Table 3b Dimensions (mm) HPe2/4CM
A
B
C
D
E
F
HPe2/4CM
620
260
220
120
390
110

Dimensions and technical data
3.2 Components
1Casing of HPe2/4CM
2Exchanger in HPe2/4CM
3Electric heater in HPe2/4CM
4Thrust line
5Return line
6Safety valve 3bar
7Safety valve drain pipe
83-pole circuit breaker with upgraded
DA10 - Safety circuit
9Signal clamps for switching on relays and connecting
temperature sensors
10 Relay for switching heating group
12 Temperature sensor
13 Safety thermostat (STB)
14 Thermal insulation HPe2/4CM
Image 2: HPe2/4CM components

Dimensions and technical data
3.3 Technical data HPe2/4CM
Unit
Mono-phase power supply
Three-phase power supply
Power
kW
2
4
6
Usability level
%
99
99
99
Number of power grades
1
2
2
Division of power grades
kW
1 ×2
2 ×2
2+4
Network voltage
VAC
1 N ~ 230V 50 H z
3 N ~ 400 / 230V 50 H z
Ingress protection rating
IP54
Main fuse required
A
1 ×16
1 ×25
3 ×16
Min. cable cross-section
mm ²
3 ×2,5
3 ×4
5 ×2,5
Max. allowed working pressure
bar
3,0
Min. allowed working pressure
bar
0,5
Max. temperature
°C
80
Water volume
l
4,5
Discharge line connection
DN25 (1”) SN
Return line connection
DN25 (1”) SN
Device weight (without water)
Kg
10,5
Table 4: technical data HPe2/4CM

Installation
4. Installation of device
CAUTION: Human or material damages occurred
because of irregular installation !
Never install HPe2/4CM without expansion dish
(AG) and safety valve.
HPe2/4CM must not be installed in protective
zone of important area or at the place of bath.
NOTE: Material damage due to freezing !
HPe2/4CM must be installed only in room safe of
freezing.
4.2 Distances
DANGER: Fire threat due to burnable materials
and liquids!
Do not dispose burnable materials and liquids
close to the HPe2/4CM.
Let know the user the valid regulations for
minimum distances from burnable materials
(section 2.8).
Comply with regulations on electric installations and
minimum distances in force in subject countries.
Place HPe2/4CM on the wall in such manner to leave free
space as illustrated in the Image 3
4.1 Be careful prior to assembly
NOTE: Material damage occurred due to
incompliance with further instructions !
Respect instructions for boiler and all installed
components.
Prior to installing take care of the following:
All electrical connectors, protective measures and fusses should be
done by professional person respecting all valid norms, regulations
and local laws
Electric connector should be done according to the connecting plans
After corresponding installation of device execute grounding of the
plant
Before opening device and all works turn off electric supply
Non-professional and non-authorised attempts to connect device under
voltage can produce material damage of device and hazardous
electrical shocks.
Image 3: Minimum distance during installation
A=500mm /B=250mm /C=500mm /D=200mm

Installation
4.3 Front door opening procedure for
HPe2/4CM
The electric heater door can be opened very easily in a few
steps.
Remove the key that is attached to the front door lock.
Insert the key into the lock.
Turn the key to the lock (unlock).
Gently pull the handle towards you.
Turn the handle to the right and the electric heater door
will open.
4.4 WALL MOUNTING HPe2/4CM
NOTE: Material damage occurred by irregular
installation on the wall!
It is necessary to use proper material for fixing
This chapter describes mounting the HPe2/4CM on a wall.
Plot the drill hole positions for the mounting kit
respecting the minimum free space dimensions next to
the HPe2/4CM (Image 3) and the dimensions in Table 5.
Drill the holes according to the dimensions for the given
type of HPe2/4CM.
Insert plastic dowels that are part of the device
packaging (or dowels adequate for a non-standard wall
type) into the drilled holes.
Then fasten the bracket with the screws supplied with
the dowels.
Carefully hang the device on the wall
Make sure the HPe2/4CM is upright.
Take care of the correct position during installation

Installation
4.5Hydraulic attachments execution
NOTE: Material damages caused by permeable
connections!
Attachment duct lines install without connecting
on HPe2/4CM connections.
NOTE: Installation damage due to bad quality of
water! Heating installation can be damaged by
corrosion or scale depending on water
characteristics.
Comply with filling requests for water according
to VDI 2035 or project documentation and
catalogue.
Heating duct lines connect as follows:
Connect return line on connection 5(image 2).
Connect start line on connection 4(image 2).
4.6.1 Filling the HPe2/4CM with
heating water and sealing test
 Waterproof should be tested prior to put on the boiler.
DANGER: Injuries and/or material damages can
occur with overpressure when testing watertight!
High pressure can damage regulatory and
safety devices and reservoir.
After filling with water set the HPe2/4CM on
pressure that is equal to the opening pressure
of safety valve.
Comply with maximum pressure of installed
components.
After testing sealing, open again closing
valves.
Make sure that all pressures, regulatory and
safety parts work correctly
DANGER: Health threat due to mix of drinking
water!
It is demanding to respect state norms and
regulations on avoiding mix drinking water
(with water from heating installations).
Comply with EN 1717.
NOTE: Material damage due to temperature
tension.
If you fill the HPe2/4CM in hot condition,
temperature tension can cause cracks due to
tensions. HPe2/4CM will start to leak
Fill the HPe2/4CM only in cold condition
(temperature of empty duct can be max 40°C)
Fill the HPe2/4CM only through quick valve
on pipe installation (return line) of the
HPe2/4CM
Connect the filling hose to the water supply network and
slowly fill it with water so that all the air comes out of it and the
water starts to flow continuously.
Close the tap on the water supply network and connect the
free end of the hose to the tap for filling and emptying the
heating installation. Secure the hose with a clamp.
Open the installation filling and draining tap and slowly charge
the HPe2/4CM. Monitor the pressure rise and close the tap
when the operating pressure is reached.
Bleed the installation via the valve on the radiator.
If the operating pressure drops by venting, the water must be
topped up.
Test for leaks according to local regulations.
After you have tested the tightness, open all the elements that
you closed due to filling.
Check that all safety elements are working properly.
If the HPe2/4CM is tested for leaks and no leakage is
observed, set the required operating pressure, according to
the pre-pressure of the expansion vessel.
Remove the hose from the filling and emptying tap.
Enter the operating pressure and water quality values in the
operating instructions.
4.6.2 Heating pump air emission and de-
blocking
This device does not have a circulation pump in it.
When the external pump is blocked, do the following:
Unscrew the center screw in the middle of the "head" of the
pump
Carefully try to unlock the pump shaft with a suitable
screwdriver.
4.6.3 HPe2/4CM venting and installation
This device does not have a built-in vent, because the
construction of the HPe2/4CM vessel is such that air cannot
remain trapped in the boiler but exits the HPe2/4CM through
the pressure pipe.
Ventilation must be installed on the installation, so as to
ensure venting of the air that can come out of the pressure
pipe, as well as venting of the entire installation.

In case only 2 phases are available, the boiler can be connected
according to Figure 6b, where the power is limited to 4kW, the
cross-sectional dimensions of the cable and fuse from Table 6 apply.
NOTE:
If the heat pump is supplied via a differential current protection
device - RSD (FID switch), and the HPe2/4CM is supplied
directly from the mains, or via another FID switch, the neutral
line (N) from the heat pump must be connected to the RSP3
clamps - to prevent until the FID switches "fall"
If both the HPe2/4CM and the Heat Pump are supplied from
the same place or there are no FID switches on the installation,
a neutral line from the RSN clamps can be fed to the RSP3
clamps.
Electric connecting
5. Electric connecting
DANGER: Life threat from electric shock!
Electric works must be done only by qualified
person.
Turn off voltage supply before opening
device and secure it against accidental turn
on.
Comply with assembly regulations.
When connecting HPe2/4CM on electric installation take
care on connections scheme and connecting plans.
Respect mandatory diameters of cables and fusses
power outside the HPe2/4CM.
This device is manufactured for connection to three-phase
power supply (3N ~ 400/230V 50Hz).
Connection to a single-phase network is possible with
a power limit of 2kW or 4kW, where the connection
must be fixed (no connection is allowed with a socket)
and the cross-section of the connection cable must be
according to Table 7a (7b).
5.1 Connecting HPe2/4CM to three-phase mains
Image 6a: Connection to a three-phase network Image 6b Connecting in two phases
RSP1, RSP2 –Temperature sensor connection clamps
(with Heat Pump)
RSP3 –Neutral line connection clamps (from Heat Pump)
RSP4, RSP5 –Signal connection clamps (230V AC) for
switching on the heater relay (from the Heat Pump).
Table 6: Nominal current, el. fuses and cross-section of power cables
for HPe2/4CM 6kW for three-phase power supply .
3N ~ 400/230V 50Hz
TK - 6
In[A]
3 × 8,7
Main fuses [A]
3 × 16
Min. cable cross section
5 × 2,5mm²
THREE-PHASE CONNECTION
POWER 6kW
TWO-PHASE POWER
CONNECTION 4kW (2kW + 2kW)

MONO-PHASE CONNECTION,
POWER 4kW (2kW + 2kW)
5.2 Connection of HPe2/4CM to mono-phase mains
Connection to a mono-phase network is possible with a power limit of 2kW or 4kW, where the connection must be fixed
(no connection is allowed with a socket) and the cross-section of the connection cable must be according to Table 7a,
or 7b for 4kW power.
Image 7a: Shema for connecting cable to mono-phase
power supply
RSP1, RSP2 –Temperature sensor connection terminals
(with heat pump)
RSP3–Neutral line connection clamps
(from Heat Pump)
RSP4 –Signal connection clamps (230V AC) for switching
on the heater relay (from the Heat Pump).
Table 7a: Nominal current, el. fuses and cross section of
power supplies 2kW limited power cables for mono phase
power supply .
Image 7b: Shema for connecting cable to mono-phase power
supply
RSP1, RSP2 –Temperature sensor connection terminals (with heat
pump)
RSP3–Neutral line connection clamps
(from Heat Pump)
RSP4, RSP5 –Signal connection clamps (230V AC) for switching
on the heater relay (from the Heat Pump).
Table 7b: Nominal current, el. fuses and cross section of power
supplies 4kW limited power cables for mono phase power
supply .
Electric connecting
1N ~ 230V 50Hz
LIMITED
POWER –2kW
In[A]
1 × 8,7
Fuses [A]
1 × 16
Min. cable cross section
3 × 2,5mm²
1N ~ 230V 50Hz
LIMITED
POWER –4kW
In[A]
1 × 17,4
Fuses [A]
1 × 25
Min. cable cross section
3 × 4mm²
MONO-PHASE CONNECTION,
POWER 2kW

Electric connecting
5.3 Connecting the power cable –
Safety circuit
The connection is made according to the wiring diagram
given for each type of connection.
Phase conductors are connected to circuit breakers, and
line terminals of appropriate dimensions according to
HPe2/4CM power are provided for connecting neutral and
protective conductors.
A remote voltage trigger has been upgraded to the
automatic fuses, so that together they form a SAFETY
ASSEMBLY. In the event of overheating of the HPe2 /
4CM, the safety thermostat sends a signal to the remote
voltage trigger, which activates and switches off the
"fuse" of the circuit breakers, ie the HPe2 / 4CM remains
without power - thus preventing any major breakdown. In
order for the HPe2 / 4CM to continue to operate, the
automatic fuses must be activated manually, which must
be done by a service technician, after determining the
cause of the overheating.
ATTENTION! When connecting phase
conductors, be sure to tighten the screws in the
terminal blocks well to achieve the best
possible connection between the conductors
and the clamps.
DANGER! Failure to connect the conductor and
clamps properly may result in overheating of the
terminal and failure.
NOTE! The connection of this device must be
carried out by a qualified person who is qualified to
perform this type of work.
The neutral (neutral) line is connected to the appropriate
clamps block (N). The neutral clamps line is blue.
Connect the earth conductor to the clamps block marked
with the earth sign. The line clamps for grounding the
device is yellow-green.
When inserting the power cord into the HPe2/4CM,
carefully route the cable to the clamps blocks, taking care
not to damage the cables inside the device.

5.4Electrical scheme
Image 8: Electrical scheme HPe2/4CM rated power 6 kW
Electric connecting

6. Commissioning
When complete below described works fill in the
Commissioning log (chapter 6.3)
6.2 First turn on
NOTE: Material damage due to incorrect handling!
6.1 Before commissioning
NOTE: Material damage occurred due to
unprofessional operating!
Start-up without sufficient quantity of water
destroys device.
Turn on the HPe2/4CM and use it only if there
is sufficient quantity of water
HPe2/4CM must work with minimum pressure of
0.5 bars
.
Klijenta/korisnika uređaja uputite u
rukovanje uređajem.
Prior to commissioning for the first time, make sure that
the heating system is filled with water and vented
Check all electrical connections
Switch on circuit breakers (protective circuit)
Before turn on, test if the following elements and joints are
connecter correctly and work correctly:
Watertight of heating installation
All pipes connected into ducts
All electric connectors
6.3 Start-up log
Commissioning works
Measured values
Notes
1.
HPe2/4CM type
2.
Serial number
3.
Set thermostat regulation
4.
Fill and air-vent heating installation and
check sealing of all connectors
5.
Operating pressure established
• Checked expansion vessel pressure
_____________ bar
6.
Test safety devices
7.
Set electric connection according to local
regulations
8.
Test function
9.
Users informed, technical documentation
submitted
10.
Confirmation of professional
commissioning
Service seal / Signature / Date
T a ble 5: Start-up log
Commissioning

Heating installation handling
7. Operating the electric heater
7.1 Operating instructions
Safety instructions
Only adults familiar with instructions and working
mode may operate the HPe2/4CM
Make sure there are no children in the HPe2/4CM
area
Do not dispose or store inflammable materials within
safe distance of 400 mm round the boiler
Inflammable materials must not be placed on the
HPe2/4CM
User must comply with instructions for operating the
HPe2/4CM
User may only turn on the HPe2/4CM (except the first
start-up), adjust temperature on the regulating device
and turn off the HPe2/4CM. All other operations must
be performed by authorised service
Authorised person who performed installation is
obliged to inform the user about handling and correct
and safe work of HPe2/4CM
In the event of alert situation, explosion, fire, gas or
steam leaking, the HPe2/4CM must not work
Be aware of inflammable characteristics of
components (Instructions on installations and
maintenance)

Cleaning and maintenance
8. Cleaning and maintenance 8.1 HPe2/4CM cleaning
DANGER! Life threat of electric power shock! Clean this device externally with wet cloth.
Electric power work must be done only by
qualified person.
Before opening device: turn heating installation
off electric power supply using safety switcher
and disconnect it from power supply net
through corresponding fuse
Secure heating installation against accidental
turn on.
Comply with instructions for installation.
8.2 Check working pressure; re-fill water
and air-vent installation
DANGER: Health threat due to mix of
drinking water!
It is demanding to respect state regulations to
avoid mix of drinking water (with water from
heating installations)
Comply with EN 1717.
Establish an operating pressure of at least 0.5 bar,
depending on the installation height
WARNING: Material damage due to
unprofessional maintenance!
Insufficient or unprofessional maintenance of
HPe2/4CM can lead to damage or destruction and
to loss of Warranty rights
Secure regular, entire and professional
maintenance of heating installation.
Electric parts and work units protect against
water and humidity.
Use only spare parts delivered by the manufacturer
or those approved by manufacturer. There will be
no responsibility for damage occurred due to spare
parts not delivered by the manufacturer.
Control examination log is provided on chapter 8.4
Perform works in accordance with log on control and
maintenance
All deficiencies remove immediately.
The volume of newly filled water is reduced in the first days
after charging due to heating. This creates airbags that create
interference in the heating system.
Testing working pressure
Working pressure of new heating installation should control
on daily basis at the beginning of its work. If needed, re-fill
water and air vent the system
Later check working pressure once per month. If needed,
re-fill water and air vent the system
Check working pressure. If it decreases below 1 bar re-fill
water
Re-fill the water
Air vent the heating installation
Check working pressure again