GOVI polarik 7TN1 User manual

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

2
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

Operating manual
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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.

Operating manual
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.

Operating manual
Safety instructions
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CAUTION
Risk of injury from sharp edges and rotating parts
Keep your distance from rotating fan blades, and
beware of the sharp sheet-metal edges under the
main cover.
Contact with these sharp edges, especially the fan
blades, can result in injury.
2.4 Refrigerant-handling precautions
Although the refrigerants used are classed as “safe”, you should
still observe certain precautions during the handling, installation and
maintenance of the monoblock unit.
Liquid refrigerants evaporate rapidly whenreleased intothe atmosphere,
and quickly ice up everything that they touch.
Skin contact can lead to severe, frostbite-like injury.

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Safety instructions
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2.5 First aid
In the event of eye contact with refrigerant or compressor oil, rinse the
affected eye(s) immediately with abundant clean water (for at least 15
minutes), and seek medical attention.
In the event of burns, protect the affected area from further injuries,
avoiding contact with the refrigerant and additional measures.
Remove refrigerant-contaminated clothing and footwear.
Thoroughly rinse off the refrigerant with abundant lukewarm water.
DO NOT apply heat (e.g. by rubbing or with a hot-water bottle).
Seek medical attention immediately. While you are waiting for help
to arrive, cover the affected area as loosely as possible with a large
sterile dressing.
In the event of inhalation of refrigerant, seek medical attention imme-
diately and bring the injured person into the fresh air. Administer arti-
ficial respiration if required.

Operating manual
Technical data
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3 Technical data
The monoblock unit consists of a self-supporting chassis and a coated
front cover made of galvanized sheet metal.
The nameplate carries the serialnumber of the monoblock unit, together
with other important technical data.
The nameplate is on the right-hand side of the main cover.
Always have the serial number of the monoblock unit to hand when
contacting us, as this will ensure the fast and smooth processing of
your enquiry.
Fig. 1: Nameplate
1

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Technical data
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3.1 Monoblock units 7 TN1 and 5 TL1
Fig. 2: Dimensions of 7 TN1, 5 TL1

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Technical data
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Designation Unit 7 TN1 5 TL1
Temperature range of
cold room
°C PT +10 / -5 NT -15 / -25
Max. spatial volume of
cold room
m310 5
Power supply V 1~230
Frequency Hz 50
Refrigeration capacity W 1590
(at ambient temperature of 32°C
and cold room temperature
of 2°C)
738
(at ambient temperature of 32°C
and cold room temperature of
-18°C)
Heat output
into surrounding area W 2291 1298
Compressor power
consumption
W 701 560
EER
(energy efficiency rating, based on
the ratio of power consumption to
cooling capacity)
- 2,27 1,32
Current consumption
LRA
A 28 21
Current consumption
FLA
A 5,7 2,4
Defrosting mode - Hot gas
Evaporator-fan airflow m3/h 750
Condenser-fan airflow m3/h 750
Protection rating IP 34
Max. ambient
temperature
°C 43 35
Refrigerant - R-513A R-452A
GWP
(global warming potential) - 631,4 2140
Tab. 2: Technical data

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Technical data
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Designation Unit 7 TN1 5 TL1
CO2equivalent t CO20,253 0,642
Refrigerant quantity g 400 300
Length of mains cable m 2
Evaporator-fan throw
distance
m 2,5
Dimensions - See Fig. 2: “Dimensions of 7 TN1 and 5
TL1” (page 14)
Weight kg 86
Paint RAL 9010 / 7024
Tab. 2: Technical data

Operating manual
Technical data
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3.2 Monoblock units 15 TN2, 20 TN2, 10 TL2
Fig. 3: Dimensions of 15 TN2, 20 TN2, 10 TL2

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Technical data
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Designation Unit 15 TN2 20 TN2 10 TL2
Temperature range of
cold room
°C PT +10 / -5 NT -15 / -25
Max. spatial volume of
cold room
m315 20 10
Power supply V 1~230 3~400
Frequency Hz 50
Refrigeration capacity W 2079
(at ambient tempe-
rature of 32°C and
cold room tempera-
ture of 2°C)
2560
(at ambient tempe-
rature of 32°C and
cold room tempera-
ture of 2°C)
1622
(at ambient tempe-
rature of 32°C and
cold room tempera-
ture of -18°C)
Heat output
into surrounding area
W 2904 3690 3205
Compressor power
consumption
W 825 1130 1583
EER
(energy efficiency rating, based on
the ratio of power consumption to
cooling capacity)
- 2,52 2,27 1,21
Current consumption
(LRA)
A 30 23
Current consumption
FLA
A 5,1 7,5 2,8
Defrosting mode - Hot gas
Evaporator-fan airflow m3/h 1100
Condenser-fan airflow m3/h 1100
Protection rating IP 34
Max. ambient
temperature
°C 43 35
Refrigerant - R-513A R-452A
Tab. 3: Technical data

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Technical data
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Designation Unit 15 TN2 20 TN2 10 TL2
GWP
(global warming potential) - 631,4 2140
CO2equivalent t CO20,379 0,410 1,498
Refrigerant quantity g 600 650 700
Length of mains cable m 2
Evaporator-fan throw
distance
m 4
Dimensions - See Fig. 3: “Dimensions of 15 TN2, 20
TN2 and 10 TL2” (page 17)
Weight kg 112 114 124
Paint RAL 9010 / 7024
Tab. 3: Technical data

Operating manual
Technical data
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3.3 Monoblock units 40 TN3 and 15 TL3
Fig. 4: Dimensions of 40 TN3, 15 TL3