GOVI polarik 7TN1 User manual

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EN OPERATING MANUAL
7 TN1 - 5 TL1 - 15TN2 - 20TN2 - 10TL2
40TN3 - 15TL3

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Please read this manual before you install and operate the
monoblock unit.
After reading the operating manual, keep it in a safe place
for future reference.
Copyright© by GOVI GmbH 2021.
The reproduction and copying of this document, in part or in whole,
are prohibited. We reserve the right to make technical changes in the
course of further development.
GOVI GmbH
Max-Planck-Str. 5
53842 Troisdorf (Germany))
Tel: [phone]
Fax: [phone]
e-mail: [email protected]
www.govi-gmbh.de

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Contents
1 General points ........................................................................5
1.1 Intended use..............................................................................5
1.2 Conditions of use.......................................................................5
1.3 Personnel ..................................................................................6
1.4 Spare parts................................................................................6
1.5 Environmental regulations ..........................................................6
1.6 Disposal of the unit ....................................................................7
2 Safety instructions..................................................................8
2.1 Safety messages and safety-alert symbols ................................8
2.2 Other terms and symbols ..........................................................8
2.3 Safety and hazard precautions...................................................8
2.4 Refrigerant-handling precautions .............................................11
2.5 First aid....................................................................................12
3 Technical data ......................................................................13
3.1 Monoblock units 7 TN1, 5 TL1.................................................14
3.2 Monoblock units 15 TN2, 20 TN2, 10 TL2...............................17
3.3 Monoblock units 40 TN3, 15 TL3.............................................20
4 Packing, transport and storage ..........................................23
4.1 Transport .................................................................................24
4.2 Storage ...................................................................................24
5 System description...............................................................25

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6 Installation.............................................................................29
6.1 Installation requirements ..........................................................29
6.2 Installation of the unit...............................................................30
6.3 Installation of accessories.........................................................32
7 Operating elements..............................................................33
7.1 LED indicator...........................................................................34
7.2 Function keys ..........................................................................35
8 Commissioning.....................................................................36
9 Operation...............................................................................38
9.1 Switching the monoblock unit on and off .................................38
9.2 Unblocking the function keys...................................................38
9.3 Setting the nominal temperature..............................................39
9.4 Switching the lamp on and off..................................................39
9.5 Manual defrost.........................................................................39
10 Maintenance .........................................................................40
10.1 Function testing of the evaporator fan......................................41
10.2 Cleaning the condenser...........................................................42
11 Faults .....................................................................................43
11.1 Troubleshooting .......................................................................43
11.2 Error codes..............................................................................45
12 Appendix................................................................................46
12.1 Wiring diagrams ......................................................................46

Operating manual
General points
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1 General points
GOVI provides thismanual for information purposes only. Theinformation
supplied in this manual should at no time be regarded as all-inclusive
or covering all contingencies. For further information, please contact
your GOVI contact person.
To ensure the durability of GOVI products, please follow the instructions
in this manual.
1.1 Intended use
This monoblock unit is designed for use in cold rooms that are not
exposed to any explosion or fire hazard. In order to perform its function,
the monoblock unit is attached to the ceiling of the cold room by means
of mechanical fastening systems.
The monoblock unit is not designed for operation in locations
classed as AP.PE EEx (explosion hazard).
The monoblock unit is not designed for use in places exposed to
fire hazard.
The monoblock unit is designed for indoor use only.
1.2
The monoblock unit is not intended for any use other than as described
above. All other usage shall be considered improper, and is either
prohibited or requires the approval/permission of the manufacturer.
Unauthorised modification or manipulation of the monoblock unit will
immediatelyvoidGOVI’swarranty,obligations, unless GOVI has granted
express written consent in advance. GOVI shall accept no liability
for personal injury or material damage resulting from unauthorised
modification.
“Intended purpose” also includes compliance with specified
maintenance and repair-work requirements.
See section 10 “Maintenance” (page 40).
Conditions of use
Ensure that the cold room in which you intend to install the monoblock
unit is properly ventilated and fitted with an extraction system. Ensure
also that you leave sufficient space for proper maintenance access.

Operating manual
General points
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Do not expose the monoblock unit to direct sunlight.
Ensure proper air circulation when placing items inside the refrigerated
unit, and be careful not to block the refrigeration-unit evaporator.
DO NOT place heat-emitting items in the refrigerated unit.
1.3 Personnel
All persons engaged to work on the monoblock unit as described in
this operating manual must be suitably trained and qualified, and able
to assess the work to be carried out and identify possible hazards.
1.4 Spare parts
Use only original spare parts or parts approved by GOVI. Please note
that spare parts and accessories notsupplied by GOVI are neither tested
nor approved. GOVI can accept no responsibility or warranty liability
for loss or damage arising from the use of non-original spare parts.
1.5 Environmental regulations
GOVI supplies the monoblock unit ready-filled with refrigerant.
If you detect any fault in the refrigerant circuit, or signs of leakage
from the monoblock unit, have the device examined and repaired by
a qualified specialist.
DO NOT allow refrigerant to escape into the open air.
Please read the safety instructions and hazard warnings in section
2.3 “Safety and hazard precautions” (page 8), as well as
the manufacturer’s data sheet for the refrigerant concerned. The
correspondingdata sheets can be downloaded fromtheGOVIwebsite.
Dispose of defective refrigeration units and drained-off refrigerant in
accordance with applicable environmental regulations.

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General points
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1.6 Disposal of the unit
WARNING
Incorrect dismantling of the monoblock unit may result
in personal-injury hazard or danger to the environment.
Engage only trained and qualified specialists to
disassemble the monoblock unit.
Take special care when handling the refrigerant.
The customer is responsible for proper disposal of the monoblock unit.
When you eventuallyscrap the monoblockunit, follow thecorresponding
local waste-disposal regulations,and engage, if necessary, the services
of a specialist organisation.
Designation Material
Structure sheet steel, ferrous materials
Condenser, evaporator Aluminium, copper
Electrical components Copper, PVC, miscellaneous
materials
Compressor steel, copper and other materials
compressor oil
Refrigerant (standard) see section 3 “Technical
specifications” (page 13)
Refrigerant quantity see section 3 “Technical
specifi-cations” (page 13)
Coating Epoxide compound
Tab. 1: List of materials

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Safety instructions
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2 Safety instructions
2.1 Safety Messages and Safety Alert Symbols
DANGER
Failure to observe these instructions is likely to result
in irreversible, or even fatal, injury.
WARNING
Failure to observe these instructions may result in
irreversible, or even fatal, injury.
CAUTION
Failure to observe these instructions may result in
personal injury and/or damage to equipment or the
environment.
2.2 Other terms and symbols
“Note” texts do not contain any safety-related items.
Items marked “Note” contain helpful tips, aswell as additional
information.
2.3 Safety and hazard precautions
WARNING
Electrical hazard
Before starting work of any kind on the monoblock
unit, disconnect it from the power supply and ensure
that it cannot be reactivated by accident.
Take suitable steps to prevent the monoblock unit
from being switched back on while work is in progress.

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Safety instructions
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WARNING
Electrical hazard
Strictly observe the following safety rules when working
on the monoblock unit’s electrical system:
Switch OFF.
Block the switch to prevent accidental reactivation.
Disconnect the power supply.
Connect to earth (ground) and short-circuit.
Cover or isolate all nearby live components.
Electrical connection of the monoblock unit must be
carried out by a qualified electrician.
WARNING
Toxic gas hazard
The refrigerant contained in the monoblock unit may
produce toxic fumes if exposed to a naked flame or an
electrical spark. These fumes are severe respiratory
irritants, potentially capable of causing death.
The refrigerant tends to displace air and can cause
oxygen depletion, which may result in death by
suffocation.
Take special careful when working on the monoblock
unit, particularly in an enclosed or confined space with
a limited supply of fresh air.
WARNING
Fire and explosion hazard from flammable materials.
Avoid open fire, electrical sparks and ignition sources.
DO NOT smoke Observe fire/explosion-prevention
measures.

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Safety instructions
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WARNING
Danger arising from unauthorised modification
DO NOT drill any extra holes into the monoblock unit,
as this may damage important components. Damage
to electrical wiring or refrigerant conduits may cause
a fire.
WARNING
Risk of damage to health from leaking refrigerant
Liquid refrigerant or fumes may leak out during
maintenance or repair work involving the refrigerant
circuit. These emissions can pose a threat to human
health and the environment.
Always use suitable personal protective equipment
(including goggles, respiratory mask and protective
gloves) if leaking refrigerant is present.
CAUTION
Burn hazard
Certain parts of the monoblock unit (e.g. the condenser,
evaporator and tubes) may still be hot after operation.
Let them cool down sufficiently before starting work
on the monoblock unit.
CAUTION
Risk of long-term damage to the environment
The operating materials (refrigerant and compressor
oil) are NOT biodegradable. Observe the safety data
sheet or operating instructions of the materials used.
Observe the corresponding local environmental
regulations when disposing of items that have been
contaminated with operating materials.