Auer HRC 70 PILOT-PREMIUM User manual

Made in

France

Manual ref. : 1898302

Edition n° : 22.22

Installation and user manual

HRC70

High temperature Heat Pumps

from 17 to 25 kW

HRC70 17 / 3 m

Ref. 151430

HRC70 17 / 3 t

Ref. 151435

HRC70 20 / 3 t

Ref. 151445

HRC70 25 / 3 t

Ref. 151450

HRC70 17 / 3 m

HRC70 17 / 3 t

HRC70 20 / 3 t

HRC70 25 / 3 t

The information contained in this document is non-contractual. Auer reserves the right to modify the technical speciﬁcations or characteristics of any of their appliances without prior notice.

- MANUAL HRC70 HEAT PUMPS 17  20  25 KW - V3

CONTENTS

1  PLEASE READ IMMEDIATELY ....................... 4

1.1 - Important information.......................................................................4

1.2 - Safety advice and instructions........................................................4

1.3 - Symbols used........................................................................................5

1.4 - Delivery terms and conditions........................................................5

1.5 - Storage and transport........................................................................5

1.5.1 - General information ................................................................................................ 5

1.5.2 - Transporting with a forklift truck ........................................................................ 5

1.5.3 - Transporting manually............................................................................................5

2  INTRODUCTION............................................. 7

2.1 - Standard congurations....................................................................7

2.2 - Operation of the Heat Pump ...........................................................7

2.3 - Accessories (included) .......................................................................7

2.4 - Accessories available to order.........................................................7

3  INSTALLATION................................................ 8

3.1 - Installing the HRC70.......................................................................................................................................8

3.1.1 - Installation site .......................................................................................................... 8

3.1.1.1 - Heat Pump installation site ..................................................................9

3.1.1.2 - Condensates drainage .........................................................................10

3.1.1.3 - Heater cable for external condensates drainage .......................... 10

3.1.1.4 - Protection screen for the nned heat exchanger.......................10

3.2 - Hydraulic installation........................................................................11

3.2.1 - Hydraulic connections on the installation ....................................................11

3.2.2 - Hydraulic connections : Heat Pump circuit...................................................12

3.2.3 - Heat Pump and Pilot pressure-relief valves............................................................12

3.2.4 - Desludging................................................................................................................12

3.2.5 - Heat Pump water inlet lter (supplied) ..........................................................13

3.2.6 - Backow prevention device ...............................................................................13

3.2.7 - Purging the heating circuit .................................................................................13

3.2.8 - Insulating the piping.............................................................................................13

3.2.9 - Expansion vessel.....................................................................................................13

3.2.10 - Frost protection and water treatment..........................................................................13

3.3 - Electrical control connections.......................................................13

3.3.1 - Connecting to the Heat Pump control ...........................................................13

3.3.1.1 - 2-core sheathed cable..........................................................................13

3.4 - Connecting to the power supply.................................................14

3.4.1 - Recommendations for connecting the system to the power supply..14

3.4.2 - Connecting the HRC70 Heat Pump to the power supply ..........................14

3.4.2.1 - HRC70 Heat Pump : 230V single-phase connection ..................... 16

3.4.2.2 - HRC70 Heat Pump : 400V three-phase connection....................... 16

3.4.3 - Electrical protection for the compressors................................................................16

4  SETUP........................................................... 17

5  MAINTENANCE AND TROUBLESHOOTING17

5.1 - General information .........................................................................17

5.2 - Maintenance on the hydraulic circuit.........................................17

5.2.1 - Water circuit..............................................................................................................17

5.2.2 - Maintenance of the heating circuit..................................................................18

5.3 - Maintenance of the Heat Pump ...................................................18

5.4 - Maintenance of the electrical components......................................18

5.5 - Errors which are not signalled by error message or alert....19

5.6 - Compressor start-up faults.............................................................20

5.7 - Alerts and errors which are signalled by the appliance.......20

- MANUAL HRC70 HEAT PUMPS 17  20  25 KW -V3 3

5.8 - Sensor data curve charts.................................................................21

5.8.1 - Waterinlet and outlet HRC70 Heat Pump and HRC70 Pilot de-icing sensor

- Air intake sensor - Sensors installed on compressors 1 and 2

- Swimming pool sensor - DHW sensor........................................................................................21

5.8.2 - Exterior sensor.........................................................................................................21

5.9 - Modication.........................................................................................21

5.10 - Decommissioning...........................................................................21

5.10.1 - Interim Product Retirement .............................................................................21

5.10.2 - Final decommissioning of the product........................................................21

5.11 - Recycling, decommissioning and disposal............................21

5.11.1 - Disposal of refrigerant uid..............................................................................21

6  SPARE PARTS ................................................ 22

6.1 - HRC70 Heat Pump................................................................................22

6.2 - Electrical boxes...................................................................................23

7  WARRANTY ................................................... 24

7.1 - Limitations of warranty....................................................................24

7.1.1 - General information ..............................................................................................24

7.1.2 - Exclusion from warranty ......................................................................................24

7.1.2.1 - Heating circuit water ............................................................................24

7.1.2.2 - Handling....................................................................................................24

7.1.2.3 - Installation site........................................................................................24

7.1.2.4 - Electrical connections ..........................................................................24

7.1.2.5 - Hydraulic connections .........................................................................24

7.1.2.6 - Accessories...............................................................................................24

7.1.2.7 - Maintenance............................................................................................24

APPENDICES...................................................... 25

A1 - Dimensions...........................................................................................25

A2 - Technical specications....................................................................26

A2.1 - General specications ...........................................................................................26

A2.2 - Performances*..........................................................................................................27

A3 - EU declaration .....................................................................................28

A4 - Frost protection ..................................................................................28

A5 - Sizing the expansion vessel............................................................28

A6 - Treatment of the water in the heating circuit..........................29

A6.1 - Preparing the hydraulic circuit (rinsing) .........................................................29

A6.2 - Filling water..............................................................................................................29

A6.3 - Treatment of the heating circuit........................................................................29

A6.4 - Protection from freezing ......................................................................................29

A7 - Product performances tables ........................................................31

A7.1 - HRC70 Heat Pump 17kW single-phase .............................................................31

A7.2 - HRC70 Heat Pump 17kW three-phase..............................................................32

A7.3 - HRC70 Heat Pump 20kW three-phase...............................................................33

A7.4 - HRC70 Heat Pump 25kW three-phase...............................................................34

HRC70 Heat Pump - 17 kW single-phase -

Internal wiring diagram...................................................................36

HRC70 Heat Pump- 17 kW and 20 kW three-phase -

Internal wiring diagram...................................................................38

HRC70 Heat Pump- 25 kW three-phase -

Internal wiring diagram...................................................................40

A8 - Electricity provider information form.........................................42

NOTES / MAINTENANCE ................................... 43

- MANUAL HRC70 HEAT PUMPS 17  20  25 KW - V3

The high temperature Heat Pump absorbs the calories present in

exterior air, and transforms them into useful energy which is then

transferred to the heating water for your home. AUER cannot be held

responsible for any other usage of the appliance.

The safety advice and instructions present in this document must

be strictly respected.

Before making any connections to the installation, make sure the

appliances are compatible with the installation.

Before switching on the appliance, check that the network voltage

to be applied to the appliance is the same as the one on the rating

plate of the appliance.

Before undertaking any manintenance work, handling, or in the

case of the appliance not functioning or malfunctioning, always

disconnect the appliance from the power supply and seek advice

from a technician or specialist.

AUER cannot be held liable for damages caused by not following

the instructions provided, nor any problems or errors caused from

improper handling, improper installation, or misuse.

The installation and operating instructions are subject to change

without prior notice.

1.1 - Important information

1 - PLEASE READ IMMEDIATELY

These installation and operating instructions form part of the appliances which they refer to.

In order for the warranty to be valid, they must be read before using the appliance.

This manual must be safeguarded and passed on to successive users for future reference.

It will be considered as evidence in case of litigation.

- It is the responsibility of the installer and

of the client to ensure that the appliance

is compatible with the power grid before

connecting the HRC70 Heat Pump (see the

electricity provider information form in the

Appendix)

- The power grid impedence value must be

less than the Heat Pump impedance Zmax

value (see § «Connecting the HRC70 Heat

Pump to the power supply»).

- If the electrical installation standards are

not respected there could be irreversible

damages to the HRC70 Heat Pump which are

not covered by the manufacturer’s warranty.

ELECTRICAL INSTALLATION

RECOMMENDATIONS

- Clean and ush the hydraulic heating circuit

before connecting the appliances (Heat Pump

and Pilot).

- The appliance only works when lled with

water. Never switch the appliance on if it is not

properly lled with water and purged of air.

- The lter valve ensures the protection of

the Heat Pump. An annual inspection of the

condition of the lter must be carried out.

- It is recommended to carry out periodic

inspections for sludge and limescale and to

clean when necessary. The appliance must

always be switched o before any cleaning is

undertaken.

- Always switch o the appliance before working

on any electrical components.

Caution:The fan may continue turning through

inertia even when the appliance is switched o.

Wait for the fan to stop before working on the

appliance.

- Never get water on the control components or

electrical parts. Always switch o the appliance

before cleaning.

HYDRAULIC INSTALLATION

RECOMMENDATIONS

1.2 - Safety advice and instructions

• The Heat Pump must only be installed outside.

• This appliance should not be used by: children under 8 years old; anyone with reduced physical, sensory or mental capabilities; or by anyone

who has insucient experience or knowledge of the appliance; unless they are being supervised by someone who is responsible for their

safety and in possession of the operating instructions of the appliance.

• Installation of the Heat Pump indoors is strictly prohibited.

• The Heat Pump operates using an air temperature range of -20°C to 40°C. When the temperature falls below -20°C, the installation no longer

heats using the Heat Pump, but using the back-up.

- MANUAL HRC70 HEAT PUMPS 17  20  25 KW -V3 5

• It is FORBIDDEN :

- to operate the Heat Pump using air intake containing solvents

or explosive materials.

- to use air intake containing grease, dust, or aerosol particles.

- to connect vented exhaust hoods to the appliance.

• Use of the appliances are FORBIDDEN if the installation is not

lled with water.

• All work must be carried out by a qualied professional with the

appliance switched o.

• This appliance must be installed in accordance

with national electrical installation regulations.

Check that the appliance is equipped with a properly

sized and properly connected grounding cable.

This CE approved unit is in compliance with the following standards:

- Low voltage 2006/95/CEE (standard EN 60.335.1).

- Electromagnetic compatibility 2004/108/CEE (standard EN

55014.1 / EN 55014.2).

• Any work on the refrigerant circuit must be carried out by a qualied

professional with a category 1 certicate of aptitude.The release of

refrigerant uid into the atmosphere is prohibited, the refrigerant

uid must be recovered before any work is undertaken on the

refrigerant circuit.

The HRC70 Heat Pump uses R290 refrigerant fluid. Given the

ammable nature of the uid, any work on the refrigerant circuit

must be done with appropriate materials and by conforming

to all regulations in eect. In case of handling of uid (recovery,

evacuation or relling), the appliance must be switched o. Do not

smoke or light any ame (e.g. lighter, blowtorch) when handling

refrigerant uid. if work must be carried out on the refrigerant

circuit using a ame (blowtorch) the refrigerant circuit must rst be

evacuated and replaced with a nitrogen atmosphere.

Identies important warnings and recommendations.

1.3 - Symbols used

Contains controlled substances, do not dispose of in

the garbage. In case of disposal, please respect the

regulations for the recovery of electrical and electronic

equipment.

Consult the installation manual before all work on the

product: handling, installation, use and maintenance.

Type and refrigerant charge.

PS High: Max high service pressure

PS Low: Max low service pressure

Heating capacity :

nom: nominal

max: maximal

Max current protection (A)

Caution : contains a ammable refrigerant uid.

Please make sure to respect the installation and

handling precautions.

1.4 - Delivery terms and conditions

In general, the material is transported at the recipient’s own risk.

It is important to verify that all of the elements have been received

and that no damage has been sustained during transport upon

receipt of the appliance and before beginning the installation

procedures.

Heat Pump

Accessories

Pilot

1.5 - Storage and transport

Admissible storage and transport temperatures of the appliance are

between -20°C and +60°C.

1.5.1 - General information

The appliances must be stored and transported packaged and

on their wooden pallets, in a vertical position, and completely

empty of water.

1.5.2 - Transporting with a forklift truck

When transporting with a forklift truck, the Heat Pump must be on

its wooden pallet.

When moving the Heat Pump do not lower or raise the unit suddenly

as the Heat Pump can easily lose it equilibrium. The Heat Pump should

be suitably secured to prevent it from tipping.

1.5.3 - Transporting manually

The Heat Pump can be transported manually. For the 17kW to 25kW

Heat Pump, use two(2) Ø26mm bars (not supplied) or straps inserted

through the holes provided for this purpose.

Do not damage

the heat exchanger

ns during handling or

transport.

Heat Pumps

should never

be laid at. Do not

incline more than 30°

Bar

Ø 26mm

- MANUAL HRC70 HEAT PUMPS 17  20  25 KW - V3

- MANUAL HRC70 HEAT PUMPS 17  20  25 KW -V3 7

2.1 - Standard congurations

2 - INTRODUCTION

Interior

installation

only

Exterior

installation

only

The ensemble is composed of an exterior unit (Monoblock high

temperature Heat Pump to be installed outdoors exclusively)

and of an interior unit (Pilot, to be installed indoors exclusively)

connected together through a hydraulic connection and a

communication bus.

The air to water Heat Pump, draws calories from the exterior air

and transfers them to the heating water circuit with high energy

eciency.

The Pilot ensures the regulation and hydraulic distribution of the

installation.

If the heating capacity required is higher than heating capacity

delivered by the Heat Pump, the Pilot can provide an extra power

boost from the boiler, or from the electrical back-up based on needs.

Note : The Heat Pump is exclusively designed for heating purposes.

It cannot be used for cooling.

2.2 - Operation of the Heat Pump

The Heat Pump is a closed and pressurised system in which the

refrigerant serves as the medium for transferring energy.

The evaporator (e) is a cooling exchanger which draws calories from

the air. The humidity in the air condenses on contact with the cold

surface, and forms condensation (evacuation in (i)).

The capacitor (f), a plated heat exchanger which is hydraulically

linked to the heating installation (h), via the Pilot, enables to heat

the water in the heating circuit, and in turn enables the heating of

the building.

Mid-season

onl y compressor(b)

is used.

The fan (g) runs

at speed 1.

In cold weather

only compressor (c)

is used.

The fan (g) runs

at speed 2.

In extreme cold

both compressors

(b) and (c)

are used at the same time.

The fan (g) runs at speed 3.

b: Compressor 1

c: Compressor 2

d: Expansion valve

e: Evaporator

f: Capacitor

g: Fan

h: Inlet / outlet point for the radiator

circuit

i: Condensates drainage

2.3 - Accessories (included)

The components described below are delivered with the Heat Pump

but they are not mounted :

2-core sheathed cable linking the

Heat Pump and the Pilot (lg 10m)

Pre-installed on the Heat Pump, only needs to be connected to

the Pilot.

1’’ 1/4 lter valve

(delivered with the hydraulic connection kit)

Hydraulic connection kit lg 1.5m

2.4 - Accessories available to order

2-core sheathed cable connecting the

Heat Pump and the Pilot (lg 20m)

20m length for connection instead of the 10m length delivered

as standard.

2-core sheathed cable connecting the

Heat Pump and the Pilot (lg 50m)

50m length for connection instead of the 10m length delivered

as standard.

External heater cable

Used to prevent frost from forming on the external condensates

drainage pipe.

- MANUAL HRC70 HEAT PUMPS 17  20  25 KW - V3

3.1 - Installing the HRC70

3 - INSTALLATION

3.1.1 - Installation site

The Heat Pump must always be transported in a vertical position,

including during installation. It should be transported with the help

of a forklift.

Do not use the hydraulic connections to move the appliance, take

hold of it using the four bottom corners of the appliance.

Installation must be carried out by a qualied installer, taking all

necessary precautions to avoid any risk of accidents or of material

damage.

The Heat Pump is designed to be installed outdoors exclusively,

while respecting a minimum of free space around the appliance in

an area free from excessive levels of dust. It should never be placed

in an enclosed space.

The Heat Pump is designed to operate in rainy weather conditions,

although it can be installed under a well ventilated shelter (with

an opening large enough to allow sucient air ow for intake and

exhaust).

- MANUAL HRC70 HEAT PUMPS 17  20  25 KW -V3 9

3.1.1.1 - Heat Pump installation site

Minimum distances to respect for proper installation of the Heat

Pump: (mm) :

50Cm

Mini

50Cm

Mini

Always make sure the heat exchanger ns are

protected when handling the appliance.

The Heat Pump must handled with caution and without being

subjected to impacts, especially when placing on the ground.

The Heat Pump must be installed on a hard

and stable base, which is suciently raised

from ground level to avoid risks of damage in case

of ooding or snow.

•The Heat Pump must only be installed

outdoors.

• Any installation in an enclosed space without

proper ventilation is prohibited.

• Do not restrict air intake or ventilation exhaust.

No object should impede the ow of air over the

heat exchanger. The Heat Pump should be placed

out of the way of prevailing winds.

• Do not install the Heat Pump near sources of

excessive heat, combustible materials, or near

ventilation points of adjacent buildings.

• Do not install the Heat Pump near a kitchen

or workshop exhaust ducts; this can result

in a mixture of oil and air settling onto the

heat exchanger ns which could hamper its

performance.

• Do not install the Heat Pump in an area with

ammable gaz, acidic substances, or alkalines

which could cause irreversible damage to the

copper-aluminium heat exchanger.

• Avoid installing the Heat Pump in a location

subject to noise reverberation such as near

windows or near the corners of buildings.

• As the condensates draining trough slopes

downward, the Heat Pump must be installed on a

level base.

• The Heat Pump must be easily accessible so as to

facilitate access for inspections and maintenance.

- MANUAL HRC70 HEAT PUMPS 17  20  25 KW - V3

3.1.1.2 - Condensates drainage

When the appliance is operating in frost protection mode, the

condensed water must be drained o. In order for the condensates

to drain properly, the drainage trough and hole must be clean and

free of all debris (leaves, grass, etc...).

If the condensates drainage pipe is connected to the rainwater run-

o system, it is advised to use a siphon.

Do not use any tools to remove ice (risk of damage to the heat

exchanger).

The Heat Pump is delivered with a flexible and transparent

condensates drainage pipe (Ø20/25mm) which does not drain

outdoors.

Before activation of the appliance, it is mandatory to connect this

exible pipe to one of the two holes provided for this purpose:

- Remove the back panel of the appliance.

- Position the exible hose in its chosen place after having

drilled a hole in the grommet.

a - Draining from underneath the Heat Pump

This solution is recommended to minimise the risk of ice at the

condensates drainage point.

b - Draining from the back of the Heat Pump

Is an acceptable solution but in this case an external heater

cable (Ref. 751004) needs to be connected. Please refer to §

«Heater cable for external condensates drainage» as well as the

instructions provided with the heater cable itself.

View from above

showing position of opening in concrete slab (case a)

3.1.1.3 - Heater cable for external

condensates drainage

The Heat Pump allows for the addition of an external heater cable

to prevent freezing of the condensates drainage circuit. The heater

cable (optional Ref.751004) is connected to the electrical box on the

terminals marked HG on the electronics board.

It must be installed in accordance with the instructions supplied

with the cable, in or around the condensates drainage pipe, outside

the Heat Pump.

3.1.1.4 - Protection screen for the nned heat

exchanger

The plastic screen which protects the nned heat exchanger during

transport may be removed once the Heat Pump is in position in its

denitive installation site.

To remove the plastic screen, simply cut it away from its attachment

points.

There is always a risk of damage to the ns from external factors (for

example, being close to a well-frequented walkway or thoroughfare),

therefore, it is preferable to keep the plastic screen in place.

Caution: The fins are fragile and sharp. Make sure that the air

passages are kept clean and clear of any blockages (take care not

to bend the ns while doing so).

Never clean the nned heat exchanger

with a high-pressure hose or any other

pressurised cleaning equipment. This could

damage the ns.

Side view

Back of the HRC

heat pump

FrontoftheHRC

heatpump

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