Heiko Thermal 6 User manual

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INSTALLATION MANUAL
HEAT PUMP HEIKO THERMAL
• The device is granted a 5-year warranty only if commissioned by an Authorised Service
Centre and registered in the guarantor’s system. The cost of service commissioning
according to the current APS rates xed by the general distributor of Refsystem
devices.
• Please read this manual carefully before commencing installation.
• This device is lled with R32 refrigerant.
• The device contains uorinated greenhouse gases.
• Keep this manual for future reference.
THERMAL 6
THERMAL 9
THERMAL 12
THERMAL 15
THERMAL 19

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1. Before use ........................................................................................................................3
2. Warranty terms .........................................................................................................12
3. Main Components...................................................................................................16
4. Data sheet ....................................................................................................................18
5. Capacity tables .........................................................................................................20
6. Unit dimensions ......................................................................................................32
7. Power supply..............................................................................................................35
8. Power distribution room ...................................................................................36
9. Terminal blocks for indoor units...................................................................37
10. Terminal blocks for outdoor units ............................................................ 40
11. Installation elements required by the warranty ...............................42
12. Installation requirements................................................................................45
13. Installation diagrams..........................................................................................45
13.1. Heiko THERMAL heat pump with CH system only .................... 46
13.2. Heiko THERMAL heat pump with CH and WH systems ........55
13.3. Heiko THERMAL heat pump with HUW system and floor
heating without control............................................................................... 65
13.4. Heiko THERMAL heat pump with heating and HUW
system.......................................................................................................................75
13.5. Heiko THERMAL heat pump with CH system and auxiliary
heat source ............................................................................................................86
13.6. Heiko THERMAL heat pump with CH + HUW systems and
auxiliary heat source .......................................................................................97
14. Emergency activation of electric heater ............................................108
15. Failure codes...........................................................................................................109
16. Circuit diagrams .................................................................................................... 111
Table of Contents

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Safety Precautions
Cautions:
Do not accelerate the defrosting process or clean the device in a manner other than
recommended by the manufacturer. The device shall be stored in a room without
continuously operating ignition sources (for example: open ames, an operating gas
appliance or an operating electric heater.).
Do not pierce or burn.
Note:the refrigerant contained in the device may be odourless.
Servicing shall be performed only as recommended by the manufacturer.
The appliance shall be stored in a well-ventilated area where the room size corresponds
to the room area as specied for operation. All procedures that affect the safety of the
installation shall only be carried out by competent persons.
The device contains uorinated greenhouse gases.
It is forbidden to release the refrigerant into the atmosphere! All the products are
in conformity with the following European regulations: Low Voltage Directive,
Electromagnetic Compatibility Directive
General information:
1. Transport of equipment containing ammable refrigerants
In compliance with the transport regulations
2. Marking of equipment using signs
In compliance with local regulations
3. Disposal of equipment using ammable refrigerants
In compliance with national regulations
4. Storage of equipment/devices
The equipment shall be stored in accordance with the manufacturer’s instructions.
5. Storage of packed (unsold and brand new) equipment
Storage packaging design shall ensure protection against refrigerant leakage in the case
of mechanical damage of the device inside the packaging. The maximum number of
pieces of equipment permitted to be stacked shall be determined by local regulations.
6. Information on servicing
1) Work area inspection
Prior to beginning work with systems containing flammable refrigerants, safety checks
are necessary to ensure that the risk of ignition is minimised. For maintenance or repair
of the refrigerant installation, the following precautions shall be complied with prior to
conducting such works.
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Air-to-water heat pump
DC inverter

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Before Use
2) Work procedure
Work shall be undertaken under a controlled procedure so as to minimise the risk of a
flammable gas or vapour being present while the work is being performed.
3) General work area
All maintenance and other personnel working in the device vicinity shall be instructed
on the nature of work being carried out. Work in confined spaces shall be avoided. The
work area around shall be sectioned off. Ensure that the conditions within the work
area have been made safe by control of flammable material.
4) Checking for presence of the refrigerant
The area shall be inspected with an appropriate refrigerant detector prior to and during
work. This lets the technical personnel know whether the atmosphere in their work
place is not toxic or flammable. Tightness detectors should enable the detection of the
type of refrigerant present in the installation. They must be intrinsically safe providing
the appropriate level of protection, and non-sparking.
5) Presence of re extinguisher
If hot work is to be performed, appropriate fire extinguishing equipment must be
available. Have a dry powder or CO2 fire extinguisher adjacent to the charging area.
6) No ignition sources
No person carrying out work in relation to a refrigeration system which involves
exposing any pipe work that contains or has contained flammable refrigerant shall use
any sources of ignition in such a manner that it may lead to the risk of fire or explosion.
All possible ignition sources, including cigarette smoking, should be kept sufficiently
far away from the site of installation, repairing, removing and disposal, during which
flammable refrigerant can possibly be released to the surrounding space. Prior to work
taking place, the area around the equipment is to be surveyed to make sure that there
are no flammable hazards or ignition risks.“No Smoking” signs shall be displayed.
7) Ventilated area
Ensure that the area is in the open or that it is adequately ventilated before opening
the refrigerant circuit or conducting any hot work. Ventilation shall continue until the
completion of work. The ventilation should safely disperse any released refrigerant and
preferably expel it externally into the atmosphere.
8) Checks to the refrigeration equipment
Where electrical components are being changed, they shall be fit for the purpose
and to the correct specification. At all times the manufacturer's maintenance and
service guidelines shall be followed. If in doubt consult the manufacturer’s technical
department for assistance. The following controls should be applied to installations
containing flammable refrigerants:

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The charge size is in accordance with the room size within which the refrigerant
containing parts are installed; The ventilation machinery and outlets are operating
adequately and are not obstructed; If an indirect refrigerating circuit is being used,
the secondary circuit shall be checked for the presence of refrigerant; Marking to the
equipment continues to be visible and legible. Markings and signs that are damaged
or illegible shall be replaced with new ones; Refrigeration pipe or components shall be
installed in a places where they are unlikely to be exposed to any substance which may
corrode refrigerant containing components, unless the components are constructed
of materials which are inherently resistant to being corroded or are suitably protected
against being corroded in this manner.
9) Checks to electrical devices
Repair and maintenance to electrical components shall include initial safety checks and
component inspection procedures. If a fault exists that could compromise safety, then
no electrical supply shall be connected to the circuit until it is satisfactorily dealt with.
If the fault cannot be corrected immediately but it is necessary to continue operation,
an adequate temporary solution shall be used. This fact shall be reported to the owner
of the equipment. Initial safety checks shall determine that: Capacitors are discharged:
this shall be done in a safe manner to avoid the possibility of sparking; There are no live
electrical components and wiring exposed while charging, recovering or purging the
system; .That there is continuity of earth bonding.
7. Repairs to sealed components
1) During repairs of sealed components, all electrical supplies shall be disconnected
from the equipment being worked upon prior to any removal of sealed covers, etc. If it is
absolutely necessary to have an electrical supply to equipment during servicing, then a
permanently operating form of leak detection shall be located at the most critical point
to warn of a potentially hazardous situation.
2) Particular attention shall be paid to the following to ensure that by working on electrical
components, the casing is not altered in such a way that the level of protection is affected.
This shall include damage to cables, excessive number of connections, terminals not
made to original specification, damage to seals, incorrect fitting of cable glands, etc.
Ensure that all electrical devices are connected and mounted securely.
Ensure that seals or sealing materials have not degraded to such an extent that they
no longer serve the purpose of preventing the ingress of flammable atmosphere.
Replacement parts shall be in accordance with the manufacturer's specifications.
Before Use