ratiotherm WP Max-Air Technical manual

Technical Document
state 11/05/2020
WP Max-Air

2
CONTENTS
1. Functional description 3
2. Notes on the documentation 4
2.1 Fundamental safety instructions 5
2.2 Used symbols 6
2.3 Intended use 7
2.4 General safety instructions 8
2.5 Installation and adjustments 9
2.6 Guidlines, norms and laws 10
2.7 Qualification of personnel 11
2.8 Responsibility of personnel 12
3. Technical data 13
3.1 Types, power, dimensions, weight 13
3.2 Performance curve 15
4. Mechanical installation 16
4.1 Internal unit 16
4.2 External unit 17
4.3 Foundation plan 18
4.4 Add-on module hybrid 19
5. Hydraulic installation 20
5.1 Connection sizes and dimension 20
5.2 Scheme: standard without solar 21
5.3 Scheme: standard with solar 22
5.4 Scheme: full scheme with hybrid and cooling 23
5.5 Pressure loss diagram 24
5.6 Pressure loss diagram hybrid 25
5.7 Requirements for the quality of the heating water 26
6. Electrical installation 27
6.1 Notes 27
6.2 Terminal diagram and description 28
6.3 Electrical installed power 28
6.4 CAN-bus plan 29
7. Refrigeration installation 30
7.1 Pipe dimensioning according to distance to external part 30
7.2 Cooling scheme 32
8. Structure and function 33
8.1 Assembly and spare parts 33
8.2 Noise exposure of the external unit 36
8.3 Control logic 37
8.4 Hybrid option 38
9. Operating instructions 39
9.1 Controller operation 39
9.2 Settings/fixed values 44
10. Debugging 47
11. Service & Maintenance 49
11.1 Cleaning 49
11.2 Maintenance 49
11.3 Tightness check 50
12. Decommissioning & Disposal 51
13. Appendix 52
13.1 Electrical plan 52
13.2 Pump Wilo-Para StG 57
13.3 Error messages frequency inverter Bonfiglioli Agile 61
13.4 Technical data UVR 16x2 64
13.5 Refrigerant R410A 66
13.6 Compressor oil 70
13.7 Label 74
13.8 EC declaration of conformity 75

3
TU_GB_WP_Max-Air_Flex12_2020/05-bi - Errors and changes of all information, pictures and drawings remain reserved.
Compliance with the generally valid and recognized rules of technology must be strictly adhered to!
ATTENTION! Installation and wiring only by authorized specialists.
1. FUNCTIONAL DESCRIPTION
The ratiotherm air heat pump WP Max-Air is designed as a split heat pump and guarantees a very quiet
operation. The energy supply of the ambient air can be easily accessed by using the heat pump WP Max-Air.
No earth or well construction work is necessary.
The maximum flow temperature is 62 °C. Due to its variable-speed compressor, it can be steplessly regulated
and is therefore particularly efficient. This feature is supplemented by the Smart-Grid capability, wherefore it
is perfectly suited for power-to-heat and network-related applications. Another environmental source can be
easily accessed by using the optional hybrid heat exchanger. Solar collectors or heat recovery systems can
be connected for example.
BENEFITS
• Easy installation, complex excavation work is
not necessary
• Efficiency can be increased by using the
optional hybrid heat exchanger
• Maximum flexibility due to speed-controlled
inverter operation
• Integrated energy management (Smart-Grid
capable)
• Very quiet in the outdoors
• With ratiotherm components a completely
coordinated, future-proof system

4
The following indications are a guide through the whole documentation.
Further documents besides this operating and installation instruction are valid.
The operating and installation guide for technical staff is a part of the ratiotherm heat pump WP Max-Air.
The ratiotherm heat pump WP Max-Air can not be used without this instruction.
The instruction needs to be available to the technical staff at any time.
In case of selling the ratiotherm heat pump WP Max-Air the instruction has to be attached.
No liability is assumed for damages caused by non-consideration of this instruction.
2. NOTES ONTHE DOCUMENTATION
TARGET GROUP
The instruction is addressed to
• the operator and
• the technical staff of the heat pump.
STORAGE OF THE DOCUMENTS
Store this instruction and all other valid documents in a way that they
are available, when required.
In case of moving or selling hand the documents over to the
successor.

5
TU_GB_WP_Max-Air_Flex12_2020/05-bi - Errors and changes of all information, pictures and drawings remain reserved.
Compliance with the generally valid and recognized rules of technology must be strictly adhered to!
ATTENTION! Installation and wiring only by authorized specialists.
2. NOTES ONTHE DOCUMENTATION
2.1 FUNDAMENTAL SAFETY INSTRUCTIONS
DANGER!
WARNING!
NOTE!
ATTENTION!
Imminent danger
which causes grievous bodily harm or leads to death.
Potentially dangerous situation,
which could cause grievous bodily harm or lead to death.
Potentially dangerous situation,
which could cause bodily harm.
Potentially dangerous situation,
which could cause bodily harm or could damage components of the heat
pump or things in the surrounding area.
Application notes
and other useful information, which facilitate the intended use of the
machine.

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2. NOTES ONTHE DOCUMENTATION
2.2 USED SYMBOLS
danger zone danger through electric current
warning of hot surfaces and fluids STOP
unlock before working
read the instruction
note: damage
mandatory signs for wearing protective gear

7
TU_GB_WP_Max-Air_Flex12_2020/05-bi - Errors and changes of all information, pictures and drawings remain reserved.
Compliance with the generally valid and recognized rules of technology must be strictly adhered to!
ATTENTION! Installation and wiring only by authorized specialists.
2. NOTES ONTHE DODUMENTATION
2.3 INTENDED USE
The ratiotherm heat pump WP Max-Air is constructed according to the state of the art and the certified
safety regulations.
The heat pump is only intended for the preparation of hot water and the generation of heat and cold in
residential and / or non-residential buildings.
Incorrect or non-intended use could result in danger to life of the operator or a third party.
In addition impairments of the devices and other material assets can arise.
The ratiotherm heat pump WP Max-Air is not intended for being used by individuals
(including children) with restricted physical, sensory or mental abilities.
The heat pump also can not be operated by individuals with a lack of experience and/or
knowledge.
• Unless they are supervised by an individual responsible for their safety or they received
instructions on how to use the device.
The ratiotherm heat pump WP Max-Air is exclusively intended for the preparation of hot
water (process water) and the generation of heat and cold.
Any other or futher use is considered improper. The manufacturer/supplier is not liable for
damage caused by improper use.
The operator is responsible for the risks.
Proper use also includes observing the operating and installation instruction as well as all
other valid documents and the conditions for inspection and maintenance.

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2. NOTES ONTHE DOCUMENTATION
2.4 GENERAL SAFETY INSTRUCTIONS
WARNING! DAMAGES POSSIBLE
• Operation of the heat pump only by qualified individuals.
• Only for intended use.
• Any other usage is a misuse.
ATTENTION! RISK OF SCALDING
• The outflow temperatures at the hot water extraction points might be
up to 60 °C.
• Carefully check the water temperature at the hot water extraction
points before placing your hands under the water jet.
NOTE! DAMAGES POSSIBLE
Damages of the heat pump and components possible.
• Read and follow the instructions.
• To avoid accidents and material damage observe the safety
instructions.
• Observe the national rules of the country in which the ratiotherm heat
pump WP Max-Air is used.
WARNING! DAMAGES POSSIBLE
Do not make any changes:
• to the heat pump;
• to the water pipes and the power lines;
• to the safety valve;
• to structural conditions, which could influence the operational safety of
the device;
• to structural conditions near the device, insofar as they could influence
its operational safety.

9
TU_GB_WP_Max-Air_Flex12_2020/05-bi - Errors and changes of all information, pictures and drawings remain reserved.
Compliance with the generally valid and recognized rules of technology must be strictly adhered to!
ATTENTION! Installation and wiring only by authorized specialists.
2. NOTES ONTHE DOCUMENTATION
2.5 INSTALLATION AND ADJUSTMENTS
The installation, commissioning or dismantling of the device is only
allowed to be done by technicians with specific knowledge.
Applicable rules, requirements and guidelines as well as local
installation specifications must be observed.
ATTENTION!
Safety valve and air outlet pipe
During the heating process water volume increases. Therefore never
close the air outlet pipe of the safety valve.
Hot water may leak out of the air outlet pipe!
Leakage
Turn off the heat pump in case of any leakages in its area and
disconnect it from the rest of the heating system.The leakage should
be fixed immediately.
NOTE!
Corrosion damages
Don‘t use sprays, solvents, chlorinated detergents, colours, glues etc.
in the environment of the heat pump to avoid corrosion.
Spare and wear parts
Components, which weren‘t tested in conjunction with the heat pump,
could cause damages at the device or affect its functions. Install
original spare and original wear parts exclusively!
LEAKAGE

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2. NOTES ONTHE DOCUMENTATION
2.6 GUIDLINES, NORMS AND LAWS
When installing the heat pump, the following requirements, rules and guidelines have to be
observed:
IN GERMANY:
• VDE- as well as EVU rules and requirements (especially VDE 0100);
• Rules and requirements of the local utilities;
• DVGW worksheet W 382
„Installation and operation of pressure reducers in drinking water consumption
systems“;
• DIN 1988 – TRWI technical rules for drinking water installation;
• DIN 4753 – Water heating systems for drinking and operating water;
• DIN 8947 – Ready for connection heat pumps for hot water preparation with
electrically driven compressors;
• Accident prevention regulations VGB 20 „refrigeration plants“ with
operational instructions;
• Energy saving regulations EnEV – Requirement for energy-efficient thermal
insulation and systems in buildings from 2009
Furthermore, local requirements and rules are valid. For example: local building
regulations.
In general, you have to observe the rules of the respective country!

11
TU_GB_WP_Max-Air_Flex12_2020/05-bi - Errors and changes of all information, pictures and drawings remain reserved.
Compliance with the generally valid and recognized rules of technology must be strictly adhered to!
ATTENTION! Installation and wiring only by authorized specialists.
2. NOTES ONTHE DOCUMENTATION
2.7 QUALIFICATION OF PERSONNEL
Specific knowledge is neccessary for the installation, the commissioning and
the dismantling of the device and it has to be performed by skilled workers.
By personnel we mean all individuals who work with the ratiotherm heat
pump WP Max-Air. With this in mind, trainees are not qualified personnel.
We require that:
• the operating personnel undergoes specific training in how to handle the
ratiotherm heat pump WP Max-Air;
• the maintenance staff will adjust, test and repair the ratiotherm heat
pump WP Max-Air in a way that no personal and material risks arise.

12
2. NOTES ON DOCUMENTATION
2.8 RESPONSIBILITY OF PERSONNEL
ATTENTION!
To avoid injuries of any type under any circumstances you have to comply
with the general accident prevention regulations and have to use protective
equipment.
To guarantee a safe installation, the responsible technician has to ensure
that:
• the personnel has the neccessary qualifications and training courses;
• the personnel has read and understood the instructions;
• the personnel is able to read the instructions at any time;
• the local accident prevention regulations as well as the environmental
regulations are complied;
• the personnel was instructed by a supervisor and that unauthorised
individuals are kept away from the ratiotherm heat pump WP Max-Air;
• the ratiotherm heat pump WP Max-Air is handed over and operated in
a safe and working condition and that damages to the heat pump are
removed immediatly or that the damaged heat pump gets shut down
right away.
Technical changes
Technical changes to the machine are prohibited.
The subsequent installation of safety devices as well as welding at
supporting parts is also prohibited.
Safety devices are not to be disabled. In general, it is only allowed to use
original spare and component parts from the manufacturer.

13
TU_GB_WP_Max-Air_Flex12_2020/05-bi - Errors and changes of all information, pictures and drawings remain reserved.
Compliance with the generally valid and recognized rules of technology must be strictly adhered to!
ATTENTION! Installation and wiring only by authorized specialists.
3.TECHNICAL DATA
3.1TYPES, POWER, DIMENSIONS, WEIGHT
Max-Air (air/water) F12
power data heat mode
A+2/W35
heat output 3.6 to 17.7 kW
power consumption 0.8 to 3.4 kW
coefficient of performance 5.11
power data cooling mode
W15/A35
cooling capacity 4.3 to 21.4 kW
power consumption 1.0 to 4.1 kW
coefficient of performance 5.19
compressor
type fully hermetic, rotary piston, inverter
rotational speed 720 to 7200 n/min
max. operating current 16 A
stalling current LRA 44 A
amount of oil 0.63 ltr.
evaporator (external unit)
type air heat exchanger
material aluminium, copper
volume flow air 7000 m3/h
test pressure 35 bar
range of application -30 to +50 °C
connection dimension coldness liquid line 12, suction gas line 28 mm
capacitor
type copper soldered plate heat exchanger
material stainless steel / copper
volume flow water 0.5 to 2 m3/h
pressure loss max. 0.5 bar
temperature difference 5 to 8 K
testing pressure 45 bar
range of application -196 to +200 °C
connection dimension 1 1/4“, external thread
refrigeration cycle
working substance R410 A
filling quantity with 10 m split line 6.5 kg
max. operating pressure 42 bar
electricity
grid connection 400 V / 3~ / 50 Hz
protection 20 A
max. operating pressure compressor 16 A

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Max-Air (air/water) F12
device data
sound pressure level inner part
at a distance of 1 m 42 dB (A)
sound pressure level outdoor unit
at a distance of 1 m 34 dB (A)
dimensions inner part 500 x 1300 x 540 wxhxd (mm)
dimensions outdoor unit 1340 x 1410 x 660 wxhxd (mm)
weight inner part 100 kg
weight outdoor unit 232 (without attachments 137) kg
max. operating pressure water 6 bar
max. flow temperature 62 °C
3.TECHNICAL DATA
3.1TYPES, POWER, DIMENSIONS, WEIGHT

15
TU_GB_WP_Max-Air_Flex12_2020/05-bi - Errors and changes of all information, pictures and drawings remain reserved.
Compliance with the generally valid and recognized rules of technology must be strictly adhered to!
ATTENTION! Installation and wiring only by authorized specialists.
3.TECHNICAL DATA
3.2 PERFORMANCE CURVE
Coefficient of performance at Heat output in kW at Power consumption in kW at
100 %
75 % 50 % 25 % 100 % 75 % 50 % 25 % 100 % 75 % 50 % 25 %
L+2/W35 4.43 4.86 5.11 4.95 17.70 13.30 8.90 4.40 3.99 2.72 1. 74 0.89
L+2/W55 2.61 2.89 3.03 2.94 14.20 10.70 7. 1 0 3.60 5.45 3.69 2.35 1.21
L+7/W35 4.85 5.34 5.60 5.43 19.00 14.30 9.50 4.80 3.91 2.67 1.70 0.87
L+7/W55 2.84 3.15 3.31 3.21 15.30 11.40 7.60 3.80 5.39 3.64 2.31 1. 18
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>нϮtϯϱ ϰϰϯ ϰϴϲ ϱϭϭ ϰϵϱ ϭϳϳ ϭϯϯ ϴϵ ϰϰ ϯϵϵ ϮϳϮ ϭϳϰ Ϭϴϵ
>нϮtϱϱ Ϯϲϭ Ϯϴϵ ϯϬϯ Ϯϵϰ ϭϰϮ ϭϬϳ ϳϭ ϯϲ ϱϰϱ ϯϲϵ Ϯϯϱ ϭϮϭ
>нϳtϯϱ ϰϴϱ ϱϯϰ ϱϲϬ ϱϰϯ ϭϵϬ ϭϰϯ ϵϱ ϰϴ ϯϵϭ Ϯϲϳ ϭϳϬ Ϭϴϳ
>нϳtϱϱ Ϯϴϰ ϯϭϱ ϯϯϭ ϯϮϭ ϭϱϯ ϭϭϰ ϳϲ ϯϴ ϱϯϵ ϯϲϰ Ϯϯϭ ϭϭϴ
KWďĞŝ ,ĞŝnjůĞŝƐƚƵŶŐŝŶŬtďĞŝ >ĞŝƐƚƵŶŐƐĂƵĨŶĂŚŵĞŝŶŬtďĞŝ
ϬϬϬ
ϭϬϬ
ϮϬϬ
ϯϬϬ
ϰϬϬ
ϱϬϬ
ϲϬϬ
>нϮtϯϱ >нϮtϱϱ >нϳtϯϱ >нϳtϱϱ
KW
KWďĞŝϭϬϬй KWďĞŝϳϱй KWďĞŝϱϬй KWďĞŝϮϱй
ϬϬ
ϱϬ
ϭϬϬ
ϭϱϬ
ϮϬϬ
>нϮtϯϱ >нϮtϱϱ >нϳtϯϱ >нϳtϱϱ
,ĞŝnjůĞŝƐƚƵŶŐ
,ĞŝnjůĞŝƐƚƵŶŐŝŶŬtďĞŝϭϬϬй ,ĞŝnjůĞŝƐƚƵŶŐŝŶŬtďĞŝϳϱй
,ĞŝnjůĞŝƐƚƵŶŐŝŶŬtďĞŝϱϬй ,ĞŝnjůĞŝƐƚƵŶŐŝŶŬtďĞŝϮϱй
ϬϬϬ
ϭϬϬ
ϮϬϬ
ϯϬϬ
ϰϬϬ
ϱϬϬ
ϲϬϬ
>нϮtϯϱ >нϮtϱϱ >нϳtϯϱ >нϳtϱϱ
>ĞŝƐƚƵŶŐƐĂƵĨŶĂŚŵĞ
>ĞŝƐƚƵŶŐƐĂƵĨŶĂŚŵĞŝŶŬtďĞŝϭϬϬй >ĞŝƐƚƵŶŐƐĂƵĨŶĂŚŵĞŝŶŬtďĞŝϳϱй
>ĞŝƐƚƵŶŐƐĂƵĨŶĂŚŵĞŝŶŬtďĞŝϱϬй >ĞŝƐƚƵŶŐƐĂƵĨŶĂŚŵĞŝŶŬtďĞŝϮϱй
Coefficient of performance
Heat output
Power consumption
Coefficient of performance at 100 % Coefficient of performance at 75 %
Coefficient of performance at 50 % Coefficient of performance at 25 %
Heat output in kW at 100 % Heat output in kW at 75 %
Heat output in kW at 50 % Heat output in kW at 25 %
Power consumption in kW at 100 % Power consumption in kW at 75 %
Power consumption in kW at 50 % Power consumption in kW at 25 %
Coefficient of performance, heat output and power consumption at varying speeds:

16
Storage conditions:
• Care must be taken to ensure frost-free storage.
Installation conditions:
• A floor drain must be provided as protection against water damage.
• The ratiotherm heat pump WP Max-Air has to be installed at a clean, ventilated and dry location. The
ambient temperature must be > 10 °C and < 35 °C year round.
• The specified minimum distances must be observed for maintenance purposes.
• Depending on the installation site a soundproof base is recommended.
Dimensions:
Distance dimensions:
4. MECHANICAL INSTALLATION
4.1 INTERNAL UNIT

17
TU_GB_WP_Max-Air_Flex12_2020/05-bi - Errors and changes of all information, pictures and drawings remain reserved.
Compliance with the generally valid and recognized rules of technology must be strictly adhered to!
ATTENTION! Installation and wiring only by authorized specialists.
Installation conditions:
• The outdoor unit must be set up in such a way that no refrigerant can get into the building or otherwise
endanger people.
• If the outdoor unit is installed close to a wall, a minimum distance of 1 meter must be maintained
(sound reflection).
• A free air flow (5000 m3/h) must be guaranteed. It is not allowed to build something around the external
unit oder to house it.
• A corresponding foundation must be created before installing the outdoor unit (see dimensions of
outdoor unit and foundation plan).
• Condensate accumulates during the operation of the heat pump. The amount of condensate depends
on the performance and humidity. If the floor ist not permeable, the condensate must be draind off
below the outdoor unit.
• The outdoor unit can be set up at a different height than the indoor heat pump unit. The following
deviations in height are possible:
• outdoor unit max. 5 meters lower or 9 meters higher than the indoor unit
• If larger height differences are required, please ask ratiotherm.
• The outdoor unit can be set up in max. 20 m distance (simple cable length) from the indoor unit, longer
cable lengths are only possible after consultation with ratiotherm.
4. MECHANICAL INSTALLATION
4.2 EXTERNAL UNIT
Distance dimensions:
connection entry

18
4. MECHANICAL INSTALLATION
4.3 FOUNDATION PLAN
4.2 EXTERNAL UNIT
infiltration area (e.g. gravel)
draining area
air ejection direction
view below:
top view:

19
TU_GB_WP_Max-Air_Flex12_2020/05-bi - Errors and changes of all information, pictures and drawings remain reserved.
Compliance with the generally valid and recognized rules of technology must be strictly adhered to!
ATTENTION! Installation and wiring only by authorized specialists.
4. MECHANICAL INSTALLATION
4.4 ADD-ON MODULE HYBRID
664,0
361,5
45,0 70,5
158,0
40,5
150,0
275,0
zur Solequelle 1'' AG
von Solequelle 1'' AG
38,0
90,0
155,0
Sauggasleitung D15
Flüssigleitung D12
275,0
460,0
59,0 245,0
41,5
44,0
10,0
162,50
Bohrbild Wandbefestigung
Änderung: Name: Datum:
Habermeyer 20.04.2020
Genehmigt:
Geprüft:
Gezeichnet:
Name: Datum:
Dateipfad:
1:8
Hybrid-Zusatzmodul
für WP Max-Air
Bezeichnung: Projekt:
Format: Blatt: Maßstab:
ratio therm Heizung + Solartechnik GmbH & Co. KG
D- 91795 Wellheimer Str. 34
Tel. [phone] / 9977 - 0
Fax. [phone] / 9977 - 30
[email protected] | www.ratiotherm.de
Ab- und
Anschlussmaße
A A
B B
C C
D D
E E
F F
4
4
3
3
2
2
1
1
from brine source 1“ AG
to the brine source 1“ AG
drilling pattern wall mounting
liquid line D12
suction line D15

20
5. HYDRAULIC INSTALLATION
5.1 CONNECTION SIZES AND DIMENSION
• Barriers as well as ventilations are intended on site.
• Sludge separators and magnetite separators must also be provided on
site.
• Tubes are recommended to be connected vibration-freely.
Recommendation: Eckstein TWS 32
• Fill the installation by the return flow.
• A drain valve is installed in the machine.
• Drainage outside the machine must be provided in the source circuit.
• Please hold the connections while tightening!
suction gas connection 18 mm
liquid connection 12 mm
heating flow 1 1/4“ AG
heating return 1 1/4“ AG
additional source entry 1“ AG (option hybrid effect)
additional source exit 1“ AG (option hybrid effect)