Auer HRC 70 32 three-phase /3 Manual de usuario

Made in

France

Manual ref. : 1898466

Edition no : 22.22

Installation and User manual

HRC70 32 tri /3

High temperature, modulating

Heat Pump

HRC70 32 /3

Ref. 151460

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

- INSTALLER HRC70 32 TRI /3 HIGH TEMPERATURE HEAT PUMP MANUAL -

TABLE OF CONTENTS

1  PLEASE READ IMMEDIATELY ....................... 3

1.1 - Important information.......................................................................3

1.2 - Safety advice and instructions........................................................3

1.3 - Symbols used........................................................................................4

1.4 - Delivery terms and conditions........................................................4

1.5 - Storage and transport........................................................................4

1.5.1 - General information ................................................................................................ 4

1.5.2 - Transporting with a forklift truck ........................................................................ 4

2  INTRODUCTION............................................. 5

2.1 - Standard conguration .....................................................................5

2.2 - Operation................................................................................................5

3  INSTALLATION................................................ 7

3.1 - Installing the Heat Pump ..................................................................7

3.1.1 - General.........................................................................................................................7

3.1.2 - Placement....................................................................................................................8

3.1.3 - Noise levels.................................................................................................................8

3.1.4 - Condensates drainage............................................................................................9

3.2 - Hydraulic installation..........................................................................9

3.2.1 - Hydraulic connections on the installation ......................................................9

3.2.2 - Sizing of the Heat Pump circuit.........................................................................10

3.2.3 - Pressure-relief valves.............................................................................................10

3.2.4 - Heat Pump water inlet lter (supplied) ..........................................................10

3.2.4.1 - Backow prevention device...............................................................10

3.2.4.2 - Purging the heating circuit(s)............................................................10

3.2.4.3 - Insulating the piping ............................................................................10

3.2.4.4 - Expansion vessel ....................................................................................10

3.2.4.5 - Frost protection and water treatment............................................10

3.3 - Electrical control connections.......................................................11

3.4 - Connecting to the power supply.................................................12

3.4.1 - Recommendations for connecting the system to the power supply..12

3.4.2 - Connecting the heat Pump to the power supply.......................................12

3.4.3 - HRC70 Heat Pump : 400V three-phase connection........................................ 13

3.4.4 - Electrical protection of the compressors.......................................................14

4  MAINTENANCE AND TROUBLESHOOTING14

4.1 - General information .........................................................................14

4.2 - Maintenance on the hydraulic circuit.........................................14

4.3 - Maintenance on the Heat Pump..................................................15

4.4 - Maintenance of the electrical components .............................15

4.5 - Decommissioning and disposal ...................................................15

4.6 - Compressor start-up faults.............................................................15

5  LIST OF SPARE PARTS .................................. 17

5.1 - HRC70 Heat Pump................................................................................17

5.2 - Electrical boxes...................................................................................18

6  WARRANTY ................................................... 19

6.1 - Limitations of warranty....................................................................19

6.1.1 - General information ..............................................................................................19

6.1.2 - Cases (not limited to) for exclusion from warranty ....................................19

6.1.2.1 - Water from the heating circuit ..........................................................19

6.1.2.2 - Handling....................................................................................................19

6.1.2.3 - Placement.................................................................................................19

6.1.2.4 - Electrical connections ..........................................................................19

6.1.2.5 - Hydraulic connections .........................................................................19

6.1.2.6 - Accessories...............................................................................................19

6.1.2.7 - Maintenance............................................................................................19

APPENDICES...................................................... 20

A1 - Dimensions...........................................................................................20

A2 - Technical specications....................................................................20

A2.1 - General characteristics..........................................................................................20

A2.2 - Performances............................................................................................................21

A3 - EU declaration .....................................................................................21

A4 - Frost protection ..................................................................................21

A5 - Treatment of the water in the heating circuit ..........................22

A5.1 - Preparation of the hydraulic circuit (rinsing).........................................................................22

A5.2 - Filling water..............................................................................................................22

A5.3 - Treatment of the heating circuit........................................................................22

A5.4 - Protection from freezing ......................................................................................23

A6 - HRC70- 32kW Three-phase-Heat Pump

INTERNAL WIRING DIAGRAM.......................................................24

A7 - Product information sheet..............................................................26

A8 - Electricity provider information form.........................................27

- INSTALLER HRC70 32 TRI /3 HIGH TEMPERATURE HEAT PUMP MANUAL - 3

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.

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.

• 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 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.

- 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 impedance 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.

RECOMMENDATIONS FOR

ELECTRICAL INSTALLATION

- 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 of theWWwelectrical components.

Caution:Thefan may continueturning 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.

RECOMMENDATIONS FOR

HYDRAULIC INSTALLATION

- INSTALLER HRC70 32 TRI /3 HIGH TEMPERATURE HEAT PUMP MANUAL -

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.

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 its equilibrium. The Heat

Pump should be suitably secured to prevent it from tipping.

The Heat Pump is designed to be transported with a pallet jack.

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.

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.

- INSTALLER HRC70 32 TRI /3 HIGH TEMPERATURE HEAT PUMP MANUAL - 5

2.1 - Standard conguration

2 - INTRODUCTION

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.

The pilot ensures the supply of water ow from the Heat Pump. It

is to be installed between the decoupling tank and the Heat Pump.

The tank ensures the hydraulic decoupling between the the Heat

Pump and the heating circuit(s).

The Pilot is delivered pre-congured for the heating of a radiator

circuit controlled by a room temperature thermostat from the Heat

Pump alone.

In the case of connection to a back-up boiler, it is used to load the

decoupling tank directly.

Note :

The Heat Pump is exclusively designed for heating purposes.

It cannot be used for cooling.

2.2 - Operation

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

refrigerant serves as the medium for transferring energy.

The evaporator (4) 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 (8)).

The condenser (5), a plated ehat exchanger which is hydraulically

linked to the heating installation (7),

via the Pilot, enables to heat the water in the heating circuit, and in

turn enables the heating of the building.

1112 22

Mid-season

only compressor (1)

is used,

the fan(6) operates at

speed 1.

In cold weather

only compressor (2)

is used,

the fan (6) operates at

speed 2.

In extreme cold

both compressors (1) and (2)

are used at the same time,

the fan (6) operates at

speed 3.

1 : Compressor 1

2 : Compressor 2

3 : Expansion valve

4 : Evaporator

5 : Condenser

6 : Fan

7 : Outlet / inlet towards heating

installation

8 : Condensates drainage

- INSTALLER HRC70 32 TRI /3 HIGH TEMPERATURE HEAT PUMP MANUAL -

- INSTALLER HRC70 32 TRI /3 HIGH TEMPERATURE HEAT PUMP MANUAL - 7

3 - INSTALLATION

3.1.1 - General

3.1 - Installing the Heat Pump

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

including during installation. It should be transported with the

help of a pallet jack.

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 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.

Always make sure the heat exchanger ns are

protected when handling the appliance.

The Heat Pump must be handled with caution and without being

subjected to impacts, especially when placing on the ground.

•The Heat Pump is designed to be installed

OUTSIDE exclusively.

• Any installation in an ENCLOSED and

UNVENTILATED space is PROHIBITED, unless

there is ventilation which ensure at least 80% of the

nominal ow rate of the Heat Pump.

• DO NOT RESTRICT air intake or ventilation

exhaust. NO OBJECT should impede the ow of air

over the heat exchanger, or the renewal of air. 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

FLAMMABLE GAS, 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.

- INSTALLER HRC70 32 TRI /3 HIGH TEMPERATURE HEAT PUMP MANUAL -

3.1.2 - Placement

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).

In regards to the fan, the free space from any obstacles must be at

least 2m.

Minimum distances to respect for proper installation of the Heat

Pump: (mm) :

3.1.3 - Noise levels

The Heat Pump is equipped with a large diameter fan so as to allow

for an appropriate air ow rate. This ow rate can rise up to 9.000

m3/h. The fan speed is adjustable to limit the noise level.

Depending on the installation conditions, the noise levels may be

dierent, in particular if the walls closest to the Heat Pump cause a

reverberation and amplication of noise.

The diagrams below show different installation examples for

dierent placements.

- INSTALLER HRC70 32 TRI /3 HIGH TEMPERATURE HEAT PUMP MANUAL - 9

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 the position of the opening in the concrete base (case a)

3.1.4 - Condensates drainage

3.2 - Hydraulic installation

3.2.1 - Hydraulic connections on the installation

In order to ensure that uids can circulate properly, it is advisable to

check that the sizing of piping in the circuit is appropriate between

the Heat Pump and the Pilot.

The HRC70 32 Heat Pump is intended for with a large variety of

heating installations due to its power level.

The circulator(s) supplying the heating circuit(s) are not delivered

with the hydraulic pilot. It is necessary to properly size and select

the appropriate circulator(s) for each installation.

The hydraulic pilot ensures the circulation of water in the Heat Pump.

It must be installed between the Heat Pump and the decoupling

bottle according to the connection diagrams in the hydraulic pilot

manual.

It is MANDATORY to read the additional

document concerning the quality of

water used for lling the installation.This

document is included with this manual as well

as in the packet with the warranty information.

This document also contains information which

is PERTINENT to the WARRANTY of the material.

Condensates recovery

trough

Grommet membrane (case b)

Plastic cap (case a)

Opening in base of concrete slab (cas a)

Back of the heat pump

Front of the heat pump

- INSTALLER HRC70 32 TRI /3 HIGH TEMPERATURE HEAT PUMP MANUAL -

3.2.3 - Pressure-relief valves

The Heat Pump and the Pilot are both equipped with pressure-

relief valves.

The pressure-relief valve on the Heat Pump sets the maximum

acceptable pressure in the installation (2.5 bars when hot). The

maximum service pressure on the Heat Pump must, consequently

be lower than 2.5 bars.

Example : If the Heat Pump is positioned 5m below the Pilot, the

pressure reading on the Pilot would be 0.5 bars less than

the real pressure of the water in the Heat Pump. In this case,

the maximum service pressure for the Pilot would be 2 bars.

Therefore it would be advisable to ll the heating circuit at

an intermediary pressure (between 1 and 1.5 bars).

In case of operating with a back-up boiler, these pressure-relief

valves MUST be installed in addition to the ones which the boiler

is already equipped with (set at 3 bars).

The connections and the evacuation conduits for the pressure-relief

valves must be made from materials which are resistant to high

temperatures and corrosion.

3.2.4.1 - Backow prevention device

French law (articles 16.7 and 16.8 of the ‘‘Règlement Sanitaire

Départemental’’) stipulates that a type CB backow prevention

device must be installed. This device must be at dierent, non-

regulated pressure zones, in accordance with the NF P 43-011

standard. This is also an obligatory requirement in other countries,

which makes it important to verify the current laws and standards in

eect in the country of installation and ensure that your installation

is in compliance with them. The backow prevention device is

designed to prevent incoming heating water from entering the

drinking water circuit. It must be connected to the mains drainage

system.

3.2.4 - Heat Pump water inlet lter (supplied)

A 1’’1/4 lter must be installed on the water inlet piping on the Heat

Pump:

• Respect the direction of ow on the lter (arrow on the

valve)

• Clean the lter at least once per year.

Before making any hydraulic connections to

the Heat Pump, it is necessary to desludge

and rinse the installation.

Clean the lter several times as soon as the Heat

Pump circulator pump has been activated (make

sure to switch o the Heat Pump circulator pump

before cleaning).

3.2.4.2 - Purging the heating circuit(s)

All necessary measures must be taken to ensure that the installation

can be continuously degassed. Automatic air purging valves should

be placed at each high point of the installation, and manual air

purging valves should be installed on each radiator.

3.2.4.3 - Insulating the piping

Insulants must conform to the DTU 67.1 standard, or the current

regulations in eect in the country of installation.

All visible piping and accessories (circulator pump, expansion vessel,

valves, etc...) must be either insulated or placed in insulated sleeves.

Remember to insulate the distribution manifolds and the inlet and

outlet ow pipes to the underoor heating circuit.

Remember to insulate the piping which connects the Heat Pump

to the Pilot.

3.2.4.4 - Expansion vessel

An expansion vessel needs to be installed onto the heating circuit.

See Appendix A4 for information on proper sizing of the expansion

vessel.

3.2.4.5 - Frost protection and water treatment

See the recommendation in Annexes A3 and A5.

Heat Pump model 32kW

Minimum nominal ow rate 3750 L/h

Maximum pressure 2.5 bars

Minimum Ø of piping

if distance* between HP and pilot < 15m 36 mm / 38 mm

If distance* between HP and pilot < 25m 42 mm / 44 mm

If distance* between HP and pilot < 50m 46 mm / 48 mm

* distance consists of both inlet and outlet (don’t multiply per two)

3.2.2 - Sizing of the Heat Pump circuit

A sucient ow rate must be ensured so that the dierence in

temperature between the outlet and inlet of the Heat Pump is not

more than 8°C with a single compressor in operation (avec un seul

compresseur en fonctionnement (take a temperature measure

when the HRC70 Heat Pump is in heating mode and the system is

fully functioning) :

The hydraulic connection section between the Heat Pump and the

Pilot must be sucient.

Using the table on the following page, determine the minimum

inner diameter of the connection of piping needed depending on

the distance* which separates the Heat Pump and the Pilot:

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