Oilon CUBE EasyAce Guide

M8006 2314EN
3 May 2023
Installation and commissioning manual
CUBE, ECO EasyAce
Read these instructions carefully before installation, use, or maintenance

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.........................................................................6
1.5 Scope of delivery........................................................................................ 6
1.6 Accessories................................................................................................. 9
1.7 Decommissioning...................................................................................... 11
1.8 Disposal of refrigerant...............................................................................12
2 Installation
2.1 Installation site.......................................................................................... 13
2.2 Dimensions, connections, and components............................................. 14
2.3 Outdoor temperature sensor.....................................................................18
2.4 In-line heater (CUBE, ECO)..................................................................... 18
2.5 Bleeding the domestic hot water coil (CUBE).......................................... 20
2.6 Thermostatic mixing valve assembly (CUBE, optional)............................ 21
2.7 Change-over valve (ECO, optional)..........................................................23
2.8 DHW tank sensor (ECO).......................................................................... 23
2.9 Electrical connections, covers, and cable management...........................24
2.10 Pipe joints................................................................................................. 24
2.11 Removing the compressor unit from the frame (CUBE)........................... 25
3 Heating circuits
3.1 Buffer tank.................................................................................................27
3.2 Buffer tank sensor (CUBE, ECO)............................................................. 27
3.3 Flow temperature sensor for heating circuit 1.......................................... 28
3.4 Heating water temperature, return to condenser (ECO)...........................30
3.5 Heating circuit’s control valve................................................................... 30
3.6 Heating circuit pump................................................................................. 33
3.7 Heating circuits 2 and 3............................................................................35
4 Commissioning
4.1 General......................................................................................................36
4.2 Signing in as a service level user............................................................ 36
4.3 Accessing initial setup settings.................................................................37
4.4 Controller’s time........................................................................................ 37
4.5 Heating settings........................................................................................ 38
4.6 Heating circuits..........................................................................................38
4.6.1 Typical heating curve adjustments........................................................... 39
4.6.2 Curing concrete floors with a heat pump..................................................39
4.7 Additional heating, space heating.............................................................39
4.8 Additional heating, hot water.................................................................... 41
4.9 Brine circuit and brine pump settings....................................................... 41
4.10 Final settings.............................................................................................42
M8006 2314EN 1 (59)

4.11 Design outdoor temperature..................................................................... 42
5 Operation
5.1 Heat pump operation................................................................................ 44
6 Technical data
6.1 Heat pump technical data.........................................................................46
6.2 Compressor units......................................................................................49
6.3 Performance data......................................................................................50
6.4 Condenser circuit flow.............................................................................. 51
6.5 Brine circuit flow........................................................................................51
6.6 Operating conditions................................................................................. 52
6.7 Pumps....................................................................................................... 54
6.8 EU Product Data.......................................................................................56
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1 Introduction
1.1 Heat pumps covered in this manual
Heat pump models
with EasyAce control
Item code Refrigerant
CUBE 6 EasyAce CUBEH607 R-410A
ECO 6 EasyAce ECO607 R-410A
CUBE 8 EasyAce CUBEH807 R-410A
ECO 8 EasyAce ECO807 R-410A
CUBE 10 EasyAce CUBEH1007 R-410A
ECO 10 EasyAce ECO1007 R-410A
CUBE 13 EasyAce CUBEH1307 R-410A
ECO 13 EasyAce ECO1307 R-410A
ECO 17 EasyAce ECO1707 R-410A
ECO 21 EasyAce ECO2107 R-410A
1.2 Instructions and diagrams
Document Designation (item code)
CUBE and ECO
Installation and commissioning
M8006
This manual
ECO and CUBE
Electric diagram
110974 (34793610)
ECO
Piping diagram
(34793609)
CUBE
Piping diagram
(34793607)
EasyAce
Quick guide
M8007
EasyAce
User manual
M8004
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.
M8006 2314EN 3 (59)

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.
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).
4 (59) M8006 2314EN

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.
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.
Do not lift or move the unit with the domestic hot water tank filled.
Tablet
Use the tablet provided with the unit only for operating the heat pump.
Using the tablet 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.
M8006 2314EN 5 (59)

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.
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.
Lifting units equipped with a built-in DHW tank
Do not lift or move the unit with the domestic hot water tank filled.
Do not lift the heat pump from the bottom of the compressor unit. Lift the
unit by the frame.
● The unit’s exterior panels may be removed to make it easier to carry and move the
unit.
● The unit can be carried short distances by the side bars.
● If necessary, the compressor unit can be detached from the frame of the heat pump
before carrying or tilting the unit.
● If you need to tilt the heat pump beyond 45 degrees, remove the compressor unit.
1.5 Scope of delivery
Equipment and components
Item PCS Item code Description
Installation and
commissioning manual
1 This manual
Operation manual 1 M8004
Quick guide 1 M8007
Electrical drawing 1 34793610 Diagram 110974
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Item PCS Item code Description
PI diagrams 1 CUBE:
34793607
ECO:
34793609
EasyAce PI diagrams
Tablet 1 378810400
For using the heat pump’s
EasyAce control app
Outdoor temperature
sensor TE0 1 36217543
Connect to cable TE01–W1
Teflon gasket, 1" CUBE: 2
ECO: 4 34797278 Install between the heat pump's
brine hoses and shut-off valves
Shut-off valve, 1" 4 34033361
For the heat pump's brine
and heating connections
Compressor fitting, 28 mm
x 1" Cube Inverter+: 2 34245086
CUBE: Install the parts
in heating connections.
Brine pump (evaporator
pump) P101 ECO 7-21: 1 34023075 Wilo Stratos Para 25/1-12 0–10 V
Domestic hot water tank
temperature TE265 ECO: 1 36217266 Already connected to switchgear
Buffer tank temperature
TE265 ECO: 1 36217266
Already connected to switchgear
● Replaces the condenser in
sensor (TE201).
Heating circuit 1 flow
temperature TE212 ECO: 1 36217266 Already connected to switchgear
Torx T25 key 1 34798044
Sensors and actuators
Position Description CUBE ECO
BRINE CIRCUIT
TE101 Brine inlet temperature
(evaporator in) S S
TE102 Brine outlet temperature
(evaporator out) S S
M8006 2314EN 7 (59)

Position Description CUBE ECO
P101 Brine pump
(evaporator pump) S S
HEATING
TE201
Heating return
temperature
(condenser in)
S OC
1TE202, 2TE202…
Heating supply
temperature
(condenser out)
S S
P201 Heating pump
(condenser pump) S S
EB203 Electric in-line heater S O
TE255 Space heating buffer
tank temperature O S
TE265 Domestic hot water
tank temperature S S
FV202
Change-over valve
(space heating/
DHW heating)
S O
TE0 Outdoor temperature S S
INTEGRATED
DHW TANK S –
HEATING CIRCUIT 1
TE212 Heating circuit 1
supply temperature O O
P221 Heating circuit 1 pump O O
FV222 Heating circuit
1 mixing valve O O
TE213 Room temperature 1 O O
HEATING CIRCUIT 2
TE222 Heating circuit 2
supply temperature OC OC
P221 Heating circuit 2 pump OC OC
FV222 Heating circuit
2 mixing valve OC OC
TE233 Room temperature 2 OC OC
HEATING CIRCUIT 3
TE232 Heating circuit 3
supply temperature OC OC
P231 Heating circuit 3 pump OC OC
FV232 Heating circuit
3 mixing valve OC OC
TE223 Room temperature 3 OC OC
REFRIGERANT
CIRCUIT
PS1 Low pressure switch S S
EXV1 Expansion valve,
evaporator S S
COMP1 Compressor S S
TE2 Discharge temperature S S
PS2 High pressure switch S S
PT2 Condenser pressure – –
Remote
connection device
EasyAce Hub Remote
connection device S S
8 (59) M8006 2314EN

Position Description CUBE ECO
Bus
Modbus RTU S S
Modbus TCP/IP S S
S: Standard equipment
O: Optional accessory, can be connected to the heat pump’s automation system and enabled without
additional equipment.
OC: Optional equipment that requires an auxiliary controller kit (controller + enclosure) for installation.
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
Item code 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 (ECO) or in the upper part of the heat pump frame (CUBE). 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
Item code 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
● Buffer tank temperature
● DHW tank temperature
● Heating circuit supply temperature
Accessory Sensor pocket 6x200 G1/2
Item code 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
Item code 36962089
Description Esbe ARA651 12101200, 3-point SPDT, 230 V, 3 wires, 60 s 90°
Valve 34034065, 34034067, 34034068, 34034467
M8006 2314EN 9 (59)

Accessory Heating circuit control valve actuator, 0–10 V 24 V
Item code 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
Item code 34034068
Description Esbe VRG131 11600900, DN20, Kvs 6.3, Rp 3/4"
Actuator 36962089, 36962220
Accessory 3-way control valve for heating circuit, DN25-10
Item code 34034065
Description Esbe VRG131 11601100, DN25, Kvs 10, Rp 1"
Actuator 36962089, 36962220
Accessory 3-way control valve for heating circuit, DN25-6.3
Item code 34034067
Description Esbe VRG131 11601100, DN25, Kvs 6.3, Rp 1"
Actuator 36962089, 36962220
Accessory 3-way control valve for heating circuit, DN20-4
Item code 34034467
Description Esbe VRG133 11602900, DN20, Kvs 4, 22 mm crimped connection
Actuator 36962089, 36962220
Accessory Change-over valve kit 1
Item code GEOEXCV1
Description Includes a change-over valve and valve actuator (item code: 34034063 and
34034064).
Accessory Change-over valve
Item code 34034063
Description LK 525 MultiZone 3V 0661109, 28 mm compression fitting, Kvs 8, B: space heating;
A: domestic hot water heating
Actuator 34034064
Accessory Change-over valve actuator
Item code 34034064
Description LK EMV 110-K 066062, SPST, 230 V, 3 m. Not energized: B (space heating);
energized: A (domestic hot water heating).
Valve 34034063
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Accessory Thermostatic mixing valve assembly
Item code 34034069
Description Thermostatic mixing valve for domestic hot water LK 545-22 AquaMix 090195;
domestic cold water inlet, shut-off and non-return valve LK 508 AquaNode 22
090025; fill valve LK 536 ThermoFill EA EN 1717; safety valve LK 514 MultiSafe
090116 10 bar
Intended use Thermostatic mixing valve assembly with fill connection.
Accessory In-line heater, 6 kW
Item code 37069089
Description 3 x 2 kW (230 V L–N), connection box, thermostat 25–85 °C, overheat protection
110 °C (manual reset), 28 mm steel pipes
Intended use Electric in-line heater for installation in a heat pump’s condenser line.Option for ECO
heat pumps.
Accessory Heating circuit pump
Item code 34023128
Description Grundfos UPM3 AUTO 25–70 130 12h
Cable 1150078
Accessory Supply cable for Grundfos UMP3
Item code 1150078
Compatible
equipment
34023128
1.7 Decommissioning
Heat pump systems must be decommissioned in accordance with applicable laws and
regulations. Heat pumps include materials and substances that require special care,
including:
● Refrigerant
● Oil
● Electrical components
● Other materials
The specific considerations for each substance or material are described in the
following sub-sections.
Refrigerant
At the end of life, recover the refrigerant and send it for disposal. See section Disposal
of refrigerant.
Oil
Waste oil should be delivered to a service provider with the means for processing such
materials in accordance with laws and regulations. Use appropriate precautions to
prevent the oil for leaking or ending up in the environment.
M8006 2314EN 11 (59)

Electrical components
Heat pumps include a wide range of electrical components, such as digital devices,
electric circuits, and sensors. Any such items should be handled and disposed of as
indicated in the instructions given by their manufacturer or in accordance with local
laws and regulations.
Other materials
In addition to the above, heat pumps have several components that are made of metals
and plastics. If possible, any such components should be recycled, and if recycling is
not an option, disposed of in accordance with local laws and regulations.
1.8 Disposal of refrigerant
The refrigerant used in the heat pump may be charged or recovered by
qualified personnel only.
Before disposal of refrigerant, determine the refrigerant type and consult
the refrigerant's Material Safety Data Sheet for safety information.
Refrigerant Details
R410A Mixture of difluoromethane and pentafluoroethane
Refrigerants should be recycled, or disposed if recycling is not possible, by a
service provider duly authorized to do so pursuant to local laws and regulations.
Certain refrigerants have a high global warming potential (GWP) if released into the
atmosphere.
12 (59) M8006 2314EN

2 Installation
2.1 Installation site
Site planning and selection
● Install the unit and the associated equipment in a warm, dry place.
● The installation site’s ambient temperature must be within +5...+40 °C (non-
condensing).
● No condensate should accumulate onto the unit’s components from ambient air
(non-condensing atmosphere).
● The air at the installation site should be free of harmful quantities of dust or other
substances that may influence the heat pump’s performance, durability, or safety.
Unit base and leveling feet
Place the unit on a stable, steady base that can carry its entire weight. Mount the unit
securely in a vertical position onto its own leveling feet. Level the machine using the
machine’s leveling feet.
Maintenance and access clearance
Install shut-off valves that allow the unit to be isolated from the brine circuit, heating
circuit, and the domestic water system.
Leave a sufficient clearance on all sides or ensure that the heat pump or that the
compressor unit can be detached. Once detached, the compressor unit can be moved
to a location that has enough space for servicing.
● Leave at least 80 cm of space in front of the unit.
● Leave at least 2 cm of space between the unit and any surrounding walls.
Access clearance ver. 1
Pos. Item
HP Heat pump
ACupboard, appliance, or
other object
M8006 2314EN 13 (59)

Floor drain
The unit’s installation site must have a floor drain. The site’s floor should be inclined so
that any runoff from the unit leads towards the drain.
2.2 Dimensions, connections, and components
Components, CUBE
CUBE 6-13 main parts ver. 3
Pos. Item Description
H Domestic hot water from storage tank
C Cold domestic water to storage tank 22 mm steel pipe
WI Heating water inlet (return)
WO Heating water outlet (flow) 28 mm copper pipe
BI Brine circuit in
BO Brine circuit out 1" inner thread and flat gasket
TE266 Domestic hot water sensor
DHWV Thermostatic mixing valve assembly with
safety valve (optional accessory) Oilon designation: 34034069
14 (59) M8006 2314EN

Pos. Item Description
AF Adjustable feet M10, DIN/ISO 17/16 mm
MFC Front panel
FS Front panel mounting screws Thumbscrews
TC Switchboard cover panel (Torx T25) The unit’s fuses and a number of terminal
blocks are located behind this cover.
FC Compressor unit front panel (Torx T25) The unit’s switchboard is located behind this
cover.
HUB Connection device for EasyAce Behind a transparent panel (Torx T25)
Components, ECO
ECO 6-21 main parts ver. 4
Pos. Item Description
WI Heating water inlet (return)
WO Heating water outlet (flow)
BI Brine circuit in
BO Brine circuit out
1" inner thread and flat gasket
AF Adjustable feet M10, DIN/ISO 17/16 mm
TC Switchboard cover (Torx T25) The unit's fuses and some of its terminal
blocks are located under this cover.
FC Compressor unit front panel (Torx T25) The unit’s switchboard is located behind this
cover.
HUB Connection device for EasyAce Behind a transparent panel (Torx T25)
M8006 2314EN 15 (59)

Dimensions, CUBE
D084066 CUBE 6-13 ver. 2
Heat pump L1 L2 L3 L4 L5 H1 H2 H3 H4 B1
CUBE 6–13 599 532 355 300 219 2010 1952 1910 726 626
Heat pump B2 B3 B4 BI/BO Ø DHW/
DCW
Ø WI/WO LF BF Ø
DF
CUBE 6–13 567 253 90 ISO
228/1-G 1
22 mm SS 28 mm Cu 563 590 35
16 (59) M8006 2314EN

Dimensions, ECO
D084082 ECO 6-21 ver. 2
Heat pump L1 L2 L3 L4 H1 H2 H3 B1 B2 B3
ECO 6-21 525 464 173 123 764 674 659 562 506 430
Heat pump B4 BI/BO Ø WI/WO LF BF Ø DF
ECO 6-21 368 ISO 228/1-G 1 ISO 228/1-G 1 425 522 33
M8006 2314EN 17 (59)

Fuses (ECO, CUBE)
ECO CUBEMarking Function
Default Upon
delivery
Default Upon
delivery
F1 Compressor’s motor
protection circuit breaker ON ON ON ON
F2 In-line heater fuse N/A OFF ON ON
F3 Control fuse (automation
system fuse) ON ON ON ON
F4 Fuse shared by the unit’s pumps ON ON ON ON
2.3 Outdoor temperature sensor
The outdoor temperature sensor (TE0) is supplied already connected to its sensor
cable (TE0–W1). Install the sensor during the heat pump’s installation.
Extend the cable if necessary.
● Use a regular insulated copper twin cable for connecting the cable and extending
the cable.
● Select the cross-sectional area of the wires by consulting the table below.
● Join or splice the cable ends in a way that causes no additional electrical resistance
in the wires. Protect the joint against moisture and oxidation.
Cable length (m) 40 60 80 120
Wire cross-sectional area (mm2)0.50 0.75 1.0 1.5
Outdoor installation
Install the sensor outside the building with the sensor cable gland pointing downwards.
● Place the sensor in a position where the prevailing outdoor temperature can be
measured as accurately as possible.
● Make sure that the sensor is not exposed to solar radiation or heat from the
building.
Even though the sensor housing is protected against dust and water spray (IP65,
provided that the cable gland is pointed downwards), it is advisable to install the unit in
a location that is covered from rain. A good place for the sensor would be, for example,
under the eaves in a shady spot on the north wall of the building.
The type of the outdoor sensor is NTC 10 kΩ. The sensor’s β value is 3,435 K. Any
corresponding 10 kΩ NTC sensor can be used as an alternative. The sensor’s β value
can be changed from the unit’s automation settings.
2.4 In-line heater (CUBE, ECO)
CUBE heat pumps are equipped with an in-line heater in the condenser line (label:
EB203). In ECO models, the in-line heater is optional.
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