Oilon ECO Inverter+ 7 Guide

M8003 2219EN
24 May 2022
INSTALLATION AND
COMMISSIONING
ECO Inverter+ 7-25

Contents
1 Introduction
1.1 Heat pumps covered in this manual...........................................................3
1.2 Instructions and diagrams...........................................................................3
1.3 Safety notice and warnings........................................................................ 3
1.4 Transportation and storage.........................................................................5
1.5 Scope of delivery........................................................................................ 6
1.6 Accessories................................................................................................. 8
2 Installation
2.1 Installation site.......................................................................................... 11
2.2 Dimensions, connections, and components............................................. 12
2.3 Outdoor temperature sensor.....................................................................14
2.4 In-line heater............................................................................................. 14
2.5 Change-over valve (optional)....................................................................16
2.6 DHW tank sensor......................................................................................17
2.7 Electrical connections, covers, and cable management...........................17
3 Heating circuits
3.1 Buffer tank.................................................................................................19
3.2 Buffer tank sensor.....................................................................................19
3.3 Flow temperature sensor for heating circuit 1.......................................... 20
3.4 Heating water temperature, return to condenser......................................22
3.5 Heating circuit’s control valve................................................................... 22
3.6 Heating circuit pump................................................................................. 25
3.7 Heating circuits 2 and 3............................................................................27
4 Commissioning
4.1 General......................................................................................................28
4.2 Signing in as a service level user............................................................ 28
4.3 Initial setup settings.................................................................................. 29
4.4 Design outdoor temperature..................................................................... 35
5 Operation
5.1 Heat pump operation................................................................................ 36
6 Technical data
6.1 Heat pump technical data.........................................................................38
6.2 Compressor units......................................................................................38
6.3 Performance data......................................................................................39
6.4 Technical data sheet (EN 14825)............................................................. 47
6.5 Operating conditions................................................................................. 48
6.6 Pumps and earth probe data....................................................................49
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6.7 EU Product Data.......................................................................................52
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1 Introduction
1.1 Heat pumps covered in this manual
Heat pump models
with EasyAce control
Designation Refrigerant
ECO Inverter+ 7–25 EasyAce 07 ECOINVERTER7-2507 R-410A
1.2 Instructions and diagrams
Document Designation
ECO Inverter+
Installation and commissioning
M8008 (34793615)
This manual
ECO Inverter+ 7-25
Electric diagram
34793613 (110894)
ECO Inverter+ 7-25
Piping diagram
34793614
EasyAce
Quick guide
M8007
(34793602)
EasyAce
Installation and initial setup
M8005
(34793601)
EasyAce
User manual
M8004
(34793603)
1.3 Safety notice and warnings
Read these instructions carefully before installation, commissioning, operation, or
maintenance of the device. The given instructions must be followed. Throughout this
manual, the following symbols are used to point out very important information:
Use special caution. The DANGER symbol indicates an immediate
hazard that will result in serious injury or death.
Use special caution. The WARNING symbol indicates a hazard that
may result in serious injury or death.
Use caution. The CAUTION symbol indicates a hazard that may result
in an injury.
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Pay attention. The NOTICE symbol indicates a risk of damage to the
equipment, components, or surroundings.
The ‘i’ (info) symbol indicates important information as well as useful
tips and hints.
Keep these instructions as well as the electrical diagrams available near the device.
Installation, commissioning, or service of the appliance is to be carried
out by authorized and trained personnel only, adhering to all local
regulations and requirements.
Wear proper personal protective equipment, such as protective
footwear, gloves, and safety goggles when necessary.
Electrical safety
Once powered on, some of the unit’s components carry a hazardous
voltage. Always pay attention to electrical safety when working with or
near electrical components.
Before any maintenance or servicing, switch off electricity using the
main switch and ensure that there is no voltage present in the unit’s
components.
Refrigerant
Refrigerant leaking from an open or broken circuit may cause
asphyxiation, severe frost damage, arrhythmia, or neurological
symptoms. If you suspect a refrigerant leak, leave the area immediately,
and seek fresh air. Help and warn others.
The unit includes a hermetically sealed refrigerant circuit filled with refrigerant R-410A.
Refrigerant R-410A is a mixture of two refrigerants: HFC-32 (R-32, difluoromethane)
and HFC-125 (R-125, pentafluoroethane).
Refrigerant R-410A is a fluorinated greenhouse gas and, consequently, subject to the
EU F-gas Regulation. Please recover the refrigerant as required by law, and transfer
the refrigerant for recycling or disposal as required by applicable laws, rules and
regulations.
The refrigerant is heavier than air. The refrigerant may accumulate in enclosed spaces,
especially at or below the floor level (for example, in basements). Ventilate the spaces
by opening the space’s doors and windows from the outside. Use fans, if necessary. Do
not enter any space where you suspect there to be leaked refrigerant present.
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Safety devices
Do not bypass, disable, or damage any of the unit’s pressure switches
or other safeguards with tools, by accessing the system’s software, or
by any other means.
Bypassing the unit’s safeguards may lead to equipment failure, damage to property or
injury to people.
Lifting and handling
The weight of the unit presents a crush hazard. Use safe work methods
when lifting and handling the unit.
During lifting, do not walk or work under the heat pump or any other
suspended load.
Wireless touch screen
Use the wireless touch screen provided with the unit only for operating
the heat pump.
Using the touch screen for any other purpose may cause slowdowns or interference
in the use of the unit’s automation system, or prevent the system from being used
altogether.
Other considerations
To avoid slipping, keep floor surfaces dry, and seal off or report any
leaks that you detect.
1.4 Transportation and storage
Storage
Store the unit upright in a warm, dry place. Protect the device against water and dust.
Do not stack goods on the unit.
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Transportation
Transport the unit upright and protected against water and dust. Do not stack goods
on the unit. Use only safe lifting and handling methods when moving or lifting the
unit. After lifting, lower the unit carefully down onto the floor. Hard impacts can cause
equipment damage.
The compressor unit can be tilted up to 45 degrees from horizontal.
If the unit is tilted beyond 45 degrees, the compressor may not receive proper
lubrication at startup. As a result, the compressor may become damaged.
● If the unit has been accidentally tilted beyond 45 degrees, leave the unit in vertical
position for at least three hours before starting the compressor.
1.5 Scope of delivery
Equipment and components
Item PCS Oilon
designation
Wireless touch screen
● For using the EasyAce control
app to control the heat pump’s
automation system
1 378810400
Wireless touch screen ver. 1
Outdoor temperature sensor
● Sensor ID is TE0.
● Connect the sensor to the
cable TE0–W1.
1 36217543
Outdoor temperature sensor ver. 1
Condenser pump 1 34023129 Grundfos UPMXL GEO 25-125 180 PWM
Evaporator pump 1 34023075 Wilo-Stratos PARA 25/1-12 T16 180 mm 6h
Buffer tank temperature sensor 1
DHW storage tank temperature 1
Heating circuit 1 flow temperature
sensor
1
Connected to the heat pump’s control
cabinet, cable length approximately 4 m.
Torx T25 key
● Provided for opening the
device’s Torx T25 screws.
1 34798044
Torx T25 ver. 1
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Sensors and actuators
EasyAce 7–25+
BRINE CIRCUIT
TE101 Brine circuit in (evaporator in) S
TE102 Brine circuit out (evaporator out) S
P101 Brine pump (evaporator circuit pump) S
HEATING
TE201 Heating water in (condenser in) S
TE202 Heating water flow (condenser out) S
P201 Heating pump (condenser circuit pump) S
EB203 In-line heater, condenser circuit O
TE255 Buffer tank temperature (tank upper section) S
TE266 Domestic hot water tank temperature (tank lower
section)
S
FV202 Change-over valve O
TE0 Outdoor temperature S
HEATING CIRCUIT 1*
TE212 Heating circuit 1 flow temperature S
P221 Heating circuit 1 pump O
FV222 Heating circuit 1 control valve O
TE213 Room temperature 1 OA**
HEATING CIRCUIT 2*
TE222 Heating circuit 2 flow temperature OA
P221 Heating circuit 2 pump OA
FV222 Heating circuit 2 control valve OA
TE223 Room temperature 2 OA
HEATING CIRCUIT 3
TE232 Heating circuit 3 flow temperature OA
P231 Heating circuit 3 pump OA
FV232 Heating circuit 3 control valve OA
TE233 Room temperature 3 OA
REFRIGERANT CIRCUIT
COMP1 Compressor S
TE2 Hot gas temperature S
PS1 Low pressure switch S
PS2 High pressure switch S
DATA HUB
HUB Connection device for the EasyAce system
(EasyAce Hub)
S
*If an auxiliary controller is not installed, one heating circuit can be regulated by a control valve, while the
second one does not have a control valve. The circuit controlled by the valve can be either heating circuit
1 or 2. Heating circuit 3 is always regulated by a control valve and requires an auxiliary controller.
**If the heating circuit does not have a control valve, the room temperature sensor can be installed without
auxiliary equipment.
S: Standard equipment
O: Optional accessory, can be connected to the heat pump’s automation system and enabled without
additional equipment.
OA: Optional equipment that requires an auxiliary controller kit (controller + enclosure) for installation.
M8003 2219EN 7 (54)

1.6 Accessories
For a full list of available accessories, please refer to brochures and price lists. Storage
tanks are presented in a separate storage tank brochure.
Accessories
Accessory Auxiliary controller with enclosure
Designation 32586192
Description An enclosure containing an auxiliary controller for regulating heating circuit 2 and
3 or increasing the number of I/O slots for different functions. Installed on top of
the heat pump unit. 24 V input from the heat pump, 230 V input from the building’s
distribution board.
Documents Electric diagram: 34793611 (110992), manual 34793612
Accessory Temperature sensor NTC10k 5 m
Designation 36217266
Description Sensor with flexible cable (length: 5 m), metallic probe (diameter: 6 mm, length: 50
mm), 1xNTC 10 kOhm, 2 wires, B(25/85)=3976, t0.97 s
Intended use Buffer tank temperature TE255
Heating circuit flow temperature TE212, TE222, TE232
Accessory Sensor pocket 6x200 G1/2
Designation 34021268
Description For 6 mm sensor probes, with cable gland, depth: 200 mm, G1/2" outer thread,
brass
Intended use Sensor pocket for buffer tanks and heating circuits
Compatible
equipment
36217266
Accessory Heating circuit control valve actuator, 3-point, 230 V
Designation 36962089
Description Esbe ARA651 12101200, 3-point SPDT, 230 V, 3 wires, 60 s 90°
Valve 34034065, 34034067, 34034068, 34034467
Accessory Heating circuit control valve actuator, 0–10 V 24 V
Designation 36962220
Description Esbe ARA639 12520100 (12520117 OEM), 0–10 V, 4–20 mA, 24 V AC/DC, 3 wires,
15/30/60/120 s 90°, pre-set to 60 s (DIP switch 2 ON), pre-set to OPEN (with
increasing signal) counterclockwise CCW (DIP switch 6 ON)
Valve 34034065, 34034067, 34034068, 34034467
Accessory 3-way control valve for heating circuit, DN 20-6.3
Designation 34034068
Description Esbe VRG131 11600900, DN20, Kvs 6.3, Rp 3/4"
Actuator 36962089, 36962220
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