AlphainnoTec LW 71A Manuale utente

Air/Water Heat Pumps

Outdoor Installation

Operating Manual

LW A series

83054200hUK – Translation into English of the original German operating manual

Subject to change without notice | 83054200hUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Please read rst

This operating manual provides important information

on the handling of the unit. It is an integral part of the

product and must be stored so that it is accessible in the

immediate vicinity of the unit. It must remain available

throughout the entire service life of the unit. It must be

handed over to subsequent owners or operators of the

unit.

Read the operating manual before working on or oper-

ating the unit. This applies in particular to the chapter

on safety. Always follow all instructions completely and

without restrictions.

It is possible that this operating manual may contain in-

structions that seem incomprehensible or unclear. In

case of questions or uncertainty, contact the factory

customer service department or the manufacturer’s lo-

cal service partner.

Since this operating manual was written for several dif-

ferent models of the unit, always comply with the pa-

rameters for the respective model.

This operating manual is intended only for persons as-

signed to work on or operate the unit. Treat all con-

stituent parts condentially. The information contained

herein is protected by copyright. No part of this oper-

ating manual may be reproduced, transmitted, copied,

stored in electronic data systems or translated into an-

other language, either wholly or in part, without the ex-

press written permission of the manufacturer.

Symbols

The following symbols are used in the operating manual.

They have the following meaning:

Information for uers.

Information or instructions for qualied

technicians.

DANGER

Indicates a direct impending danger re-

sulting in severe injuries or death.

WARNING

Indicates a possibly dangerous situa-

tion that could result in severe injuries or

death.

CAUTION

Indicates a possibly dangerous situation

that could result in medium or light inju-

ries.

ATTENTION

Indicates a possibly dangerous situation, which

could result in property damage.

NOTICE

Emphasized information.

€ENERGY SAVING TIP

Indicates suggestions that help to save energy,

raw materials and costs.

Reference to other sections of the operating

manual.

Reference to other instructions of the manufac-

turer.

Subject to change without notice | 83054200hUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Contents

INFORMATION FOR USERS AND QUALIFIED

PERSONNEL

PLEASE READ FIRST..................................................................2

SYMBOLS .....................................................................................2

INTENDED USE..........................................................................4

EXCLUSION OF LIABILITY......................................................4

EC CONFORMITY .....................................................................4

SAFETY.........................................................................................4

CUSTOMER SERVICE ................................................................5

WARRANTY / GUARANTEE ...................................................5

DISPOSAL ....................................................................................5

OPERATING PRINCIPLE OF HEAT PUMPS ...........................6

AREA OF UTILIZATION...........................................................6

HEAT QUANTITY RECORDING ............................................6

OPE R ATION ................................................................................6

CARE OF THE UNIT..................................................................7

MAINTENANCE OF THE UNIT ..............................................7

Cleaning and rinsing of unit components..........................7

MALFUNCTIONS.......................................................................7

INSTRUCTIONS FOR QUALIFIED TECHNICIANS

SCOPE OF DELIVERY ................................................................8

INSTALLATION AND ASSEMBLY...........................................9

Installation location ..............................................................9

Transport to installation location ......................................9

Sound ....................................................................................10

Installation............................................................................13

Attaching the air flow baffles............................................15

Installation / connection to heating circuit ....................17

Condensate discharge ........................................................19

PRESSURE RELIEF.....................................................................19

OVERFLOW VALVE..................................................................19

BUFFER TANK...........................................................................19

CIRCULATING PUMPS ...........................................................19

WATER HEATING ....................................................................19

HOT-WATER TAN K .................................................................20

ELECTRICAL CONNECTIONS .............................................20

RINSING, FILLING AND BLEEDING THE SYSTEM ..........23

Water quality of the fill and additional

water in hot water heating systems ..........................23

INSULATING THE HYDRAULIC CONNECTIONS ..........25

SET THE OVERFLOW VALVE.................................................25

COMMISSIONING ...................................................................26

Safety temperature limiter................................................26

DISMANTLING .........................................................................27

TECHNICAL DATA / SCOPE OF DELIVERY

LW 71A – LW 121A ............................................................28

LW 140A – LW 310A..........................................................30

PERFORMANCE CURVES

LW 71A .................................................................................32

LW 81A .................................................................................33

LW 101A ...............................................................................34

LW 121A ...............................................................................35

LW 140A ...............................................................................36

LW 180A...............................................................................37

LW 251A ...............................................................................38

LW 310A ...............................................................................39

DIMENSIONAL DRAWINGS

LW 71A – LW 81A ............................................................. 40

LW 101A ...............................................................................41

LW 121A ...............................................................................42

LW 140A – LW 180A .........................................................43

LW 251A .............................................................................. 44

LW 310A ...............................................................................45

INSTALLATION PLANS

LW 71A – LW 81A ..............................................................46

LW 101A ...............................................................................47

LW 121A .............................................................................. 48

LW 140A – LW 180A .........................................................49

LW 251A ...............................................................................50

LW 310A ...............................................................................51

HYDRAULIC INTEGRATION

LW 71A – LW 251A

Row tank ..............................................................................52

Separate buffer tank...........................................................53

LW 310A

Row tank ..............................................................................54

Separate buffer tank...........................................................55

Legend Hydraulic integration............................................56

TERMINAL DIAGRAMS

LW 71A – LW 81A ..............................................................57

LW 101A – LW 251A ..........................................................58

LW 310A ...............................................................................59

CIRCUIT DIAGRAMS

LW 71A – LW 81A ..............................................................60

LW 101A – LW 121A ..........................................................62

LW 140A .............................................................................. 64

LW 180A...............................................................................66

LW 251A ...............................................................................68

LW 310A ...............................................................................71

EC DECLARATION OF CONFORMITY..............................75

Subject to change without notice | 83054200hUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Intended use

The unit may be used only for the intended use. This

means:

•for heating.

•for heating hot water.

The unit may be operated only within its technical pa-

rameters.

Overview “Technical data/scope of delivery”.

NOTICE

Notify the responsible power supply company of

the use of a heat pump or heat pump system.

CAUTION

The unit is not suitable for use in IT network

systems.

Exclusion of liability

The manufacturer will not be liable for damage resulting

from unauthorized use of the unit.

The manufacturer’s liability will also be voided in the fol-

lowing cases:

•if work is performed on the unit and its compo-

nents in a manner that does not comply with the

terms of this operating manual;

• if work is performed on the unit and its compo-

nents in an improper manner;

•if work is performed on the unit that is not de-

scribed in this operating manual, and this work

was not expressly approved in writing by the man-

ufacturer;

•if the unit or components in the unit are modied,

redesigned or removed without the express writ-

ten permission of the manufacturer.

EC conformity

The unit bears the CE mark of conformity.

EC declaration of conformity

Safety

The unit is operationally safe when used for the intend-

ed purpose. The construction and design of the unit con-

form to the state of the art, all relevant DIN/VDE regu-

lations and all relevant safety regulations.

Every person who performs work on the unit must have

read and understood the operating manual prior to

starting any work. This also applies if the respective per-

son has already worked with such a unit or a similar unit

or has been trained by the manufacturer.

Every person who performs work on the unit must com-

ply with the applicable accident prevention and safety

regulations. This applies in particular to the wearing of

personal safety gear.

DANGER

Danger of fatal injury due to electric

current!

Electrical connections may be installed

only by qualied electricians.

Before opening the unit, disconnect the

system from the power supply and secure

it from being switched back on!

ATTENTION

If using the unit in 3~230V systems, please note

that the residual-current circuit breaker (RCCB)

used must be AC-DC sensitive.

WARNING

Only qualied technicians (trained heat-

ing, cooling and electrical technicians)

may perform work on the unit and its

components.

WARNING

Observe safety labels on and in the unit.

WARNING

Unit contains refrigerants!

Leaking refrigerant could result in person-

al injury or material damage. Therefore:

– Shut down unit.

– Notify the manufacturer’s authorized

service center.

Subject to change without notice | 83054200hUK – Translation into English of the original German operating manual | ait-deutschland GmbH

ATTENTION

For safety reasons:

Never disconnect the unit from the power sup-

ply, unless the unit is being opened.

ATTENTION

Install the heat pump only outdoors and operate

only with outside air as the heat source. Do not

restrict or block the air-conducting sides.

Dimensional drawing and installation plan for re-

spective unit model.

WARNING

Never switch on unit if air ow bafes on

the unit are removed.

ATTENTION

The integration of the heat pump in ventila-

tion systems is not permissible. The use of the

cooled air for cooling purposes is not permitted.

ATTENTION

The ambient air in the location where the heat-

ing pump is installed and also the intake air which

is used as a source of heat must not contain any

kind of corrosive components!

Components such as ammonia, sulphur, chlo-

rine, salt, sewer gas, ue gases etc. may cause

damage leading to complete failure or even a to-

tal write-off of the heating pump!

CAUTION

In the air outlet area the air temperature

is ca. 5 K below the ambient temperature.

Under certain climatic conditions, there-

fore, an ice layer can form in the air out-

let area. Install the heat pump so that the

air blower does not blow in the direction

of footpaths.

Customer service

For technical assistance, please contact your qualied

technician or the manufacturer’s local service partner.

For a current list and additional partners of the manufac-

turer, please visit

DE: www.alpha-innotec.de

EU: www.alpha-innotec.com

Warranty / Guarantee

For warranty and guarantee conditions, please refer to

the purchase documents.

NOTICE

Please contact your dealer concerning warran-

ties and guarantees.

Disposal

When decommissioning the unit, always comply with ap-

plicable laws, directives and standards for the recovery,

recycling and disposal of materials and components of

cooling units.

“Dismantling”.

Subject to change without notice | 83054200hUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Operating principle of heat

pumps

Heat pumps operate on the principle of a refrigerator:

the same technology, only with the opposite effect. The

refrigerator extracts heat from foods, which is released

into the room through ns on the back.

The heat pump extracts heat from our environment: air,

earth or water. The extracted heat is conditioned in the

unit and supplied to the heating water. Even when it is

extremely cold outside, the heat pump draws enough

heat to heat a house.

Example: drawing of a brine/water heat pump with oor

heating:

4⁄4= usable energy

ca. 3⁄4= environmental energy

ca. 1⁄4= external electrical energy

Area of utilization

Taking into consideration the ambient conditions, limits

of application and the applicable regulations, every heat

pump can be utilized in new or existing heating systems.

Overview “Technical data/scope of delivery”.

Heat quantity recording

In addition to the proof of the unit’s efciency,

EEWaermeGalso meets the demand for a heat quantity

recording (hereafter refered to as HQR). The HQR

is mandatory with air/water heat pumps. With brine/

water and water/water heat pumps, a HQR may only be

set up when a forward ow temperature of ≥ 35 °C has

been reached. The HQR must record the total warm

energy release (heating and hot water) in the building. In

heat pumps with heat quantity recording, the analysis is

conducted by the regulator. The regulator displays the

thermal energy that is exchanged from the heating system

in kWh.

Operation

Your decision to purchase a heat pump or a heat pump

system is a long-term contribution to protecting the en-

vironment through low emissions and reduced primary

energy use.

You can operate and control the heat pump system with

the control element of the heating and heat pump regu-

lator.

NOTICE

Make sure that the control settings are correct.

Operating manual of the heating and heat pump

regulator.

To ensure that your heat pump or heat pump system

operates efciently and ecologically, the following are

especially important:

€ENERGY SAVING TIP

Avoid unnecessarily high ow temperatures.

A lower ow temperature on the hot water side

increases the efciency of the system.

€ENERGY SAVING TIP

When letting in fresh air, do not leave windows

open for an extended period, thus saving energy

and reducing your heating costs.

Subject to change without notice | 83054200hUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Care of the unit

The outer surfaces of the unit can be cleaned with a

damp cloth and household cleaning products.

Do not use cleaning or care products that contain abra-

sives, acids and/or chlorine. Such products would de-

stroy the surfaces and could also damage the technical

components of the unit.

Maintenance of the unit

The cooling circuit of the heat pump requires no regu-

lar maintenance.

According to EU regulation (EC) 517/2014, leak

inspections and maintenance of a log book are required

by law for certain heat pumps!

Log book for heat pumps, Section “Information

on use of the log book”.

The components of the heating circuit and the heat

source (valves, expansion vessels, circulating pumps,

lters, dirt traps) should be inspected as well as cleaned

as needed - at the very least annually - by a qualied

heating or cooling system technician.

The intake and blow-out openings must be inspected for

dirt at regular intervals (depending on the installation lo-

cation) and cleaned, if necessary.

ATTENTION

Check regularly to ensure that the condensate

can drain out of the unit unobstructed. To this

end, regularly check the condensate pan in the

unit and the condensate drain to ensure that

they are clean / free from obstructions and clean

as needed.

Icing of the protective grating

When temperatures fall below freezing and high levels

of humidity are present, ice can form on the protective

grating of the air ow bafes. In order to ensure prob-

lem-free operations, the ice must be removed on a reg-

ular basis.

It is a good idea to have a maintenance contract with a

heating installation company. The company will conduct

the required maintenance at regular intervals.

CLEANING AND RINSING OF UNIT COMPONENTS

CAUTION

Unit components may be cleaned and

rinsed only by customer service personnel

authorized by the manufacturer. Use only

liquids recommended by the manufacturer.

Rinsing of the liqueer with chemical

cleaning agents must be followed by neu-

tralization of residue and intensive rinsing

with water. Always observe the technical

data of the manufacturer of the heat ex-

changer.

Malfunctions

In the event of a malfunction, you can detect the cause of

the malfunction via the diagnostic program of the heating

and heat pump regulator.

Operating manual of the heating and heat pump

regulator.

WARNING

Service and repair work on the compo-

nents of the unit may be performed only

by customer service personnel authorized

by the manufacturer.

Note that no malfunction is displayed if the safety tem-

perature limiter on the electric heating element has

been triggered (depending on unit model).

“Commissioning”, “Safety temperature limiter”

section.

Subject to change without notice | 83054200hUK – Translation into English of the original German operating manual | ait-deutschland GmbH

Scope of delivery

Example of scope of delivery:

LW 71… / LW 81…(ONE PACKING UNIT):

Compact unit with fully hermetically

enclosed compressor, all safety-related

components for monitoring of cooling circuit

and hose for condensate discharge.

LW 101… THROUGH LW 310…

(TWO PACKING UNITS):

Packing unit 1:

Air ow bafes (quantity

of 2, each in a separate box)

Packing unit 2:

Basis unit (this illustration shows an example LW

121…) with fully hermetically enclosed compressor,

all safety-related components for monitoring

of cooling circuit and hose for condensate

discharge (connected on heat pump side).

Inspect delivery for outwardly visible signs of dam-

age…

Check to make sure that delivery is complete…

Any defects or incorrect deliveries must be claimed

immediately.

NOTICE

Note the model.

Overview “Technical data/scope of delivery”.

ACCESSORIES NECESSARY FOR OPERATION

ATTENTION

Use only original accessories from the manufac-

turer of the unit.

Heating and heat pump controllers, as wall-mounted

controllers or integrated in the hydraulic tower (for out-

put range 7 – 18kW), as well as control and sensor ca-

bles, are functionally necessary accessories, which you

must order separately.

Subject to change without notice | 83054200hUK – Translation into English of the original German operating manual | ait-deutschland GmbH

The heat pump is a functioning unit only with the heat-

ing and heat pump regulator and the control and sensor

wires.

Heating and heat pump regulator

(for wall mounting)

Control and sensor wires are available in various lengths,

as required.

ADDITIONAL ACCESSORIES

The installation accessories (vibration decouplers) for

air/water outdoor installation heat pumps must be or-

dered separately.

With the LW 310A, you must select the electrical heat-

ing element for the specic system and order it sepa-

rately.

Installation and assembly

Observe the following when performing all work:

NOTICE

Always comply with applicable accident pre-

vention regulations, statutory regulations, ordi-

nances and directives.

NOTICE

Observe the sound levels of the respective

model.

Overview “Technical data/scope of delivery”,

“Sound” section.

INSTALLATION LOCATION

ATTENTION

Install the unit only outdoors.

Dimensional drawing and installation plan for re-

spective unit model.

TRANSPORT TO INSTALLATION LOCATION

To prevent damage during transport, always transport

the unit to nal installation location in its original packag-

ing, using a lifting truck, forklift or crane.

WARNING

Several people are required to transport

the unit. Do not underestimate the weight

of the unit.

Overview “Technical data/scope of delivery”,

“General unit data” section.

WARNING

Unit is not fastened to the wooden pallet.

Danger of tipping over during transport!

This can result in personal injury and dam-

age to the unit.

– Take suitable precautionary measures

to eliminate the danger of tipping.

ATTENTION

Never use components and hydraulic connec-

tions on the unit for purposes of transport.

ATTENTION

Do not tilt the unit more than a maximum

of 45° (in any direction).

Subject to change without notice | 83054200hUK – Translation into English of the original German operating manual | ait-deutschland GmbH

SOUND

The noise emission from the heat pumps must be taken

into account in the respective installation plans for air /

water heat pumps. The respective regional regulations

must be complied with.

NOTE.

The following sound pressure levels are calcu-

lated values. Other constellations, adjoining

other buildings or even reecting surfaces may

lead to a level increase. An exact specication

of each sound pressure level is possible only

through a measurement spot when the heat

pump is already installed.

The following sound pressure levels result, depending on the distance and installation variant with directivity factor Q.

(page 12 ):

71A

Distance from the heat pump in m

12345678910 11 12 13 14 15 16 17 18 19 20

Directivity

factor Sound pressure level at max. heating output in dB(A)

253 47 43,5 41 39 37,4 36,1 34,9 33,9 33 32,2 31,4 30,7 30,1 29,5 28,9 28,4 27,9 27,4 27

456 50 46,5 44 42 40,4 39,1 37,9 36,9 36 35,2 34,4 33,7 33,1 32,5 31,9 31,4 30,9 30,4 30

859 53 49,5 47 45 43,4 32,1 40,9 39,9 39 38,2 37,4 36,7 36,1 35,5 34,9 34,4 33,9 33,4 33

81A

Distance from the heat pump in m

12345678910 11 12 13 14 15 16 17 18 19 20

Directivity

factor Sound pressure level at max. heating output in dB(A)

253 47 43,5 41 39 37,4 36,1 34,9 33,9 33 32,2 31,4 30,7 30,1 29,5 28,9 28,4 27,9 27,4 27

456 50 46,5 44 42 40,4 39,1 37,9 36,9 36 35,2 34,4 33,7 33,1 32,5 31,9 31,4 30,9 30,4 30

859 53 49,5 47 45 43,4 32,1 40,9 39,9 39 38,2 37,4 36,7 36,1 35,5 34,9 34,4 33,9 33,4 33

101A

Distance from the heat pump in m

12345678910 11 12 13 14 15 16 17 18 19 20

Directivity

factor Sound pressure level at max. heating output in dB(A)

253 47 43,5 41 39 37,4 36,1 34,9 33,9 33 32,2 31,4 30,7 30,1 29,5 28,9 28,4 27,9 27,4 27

456 50 46,5 44 42 40,4 39,1 37,9 36,9 36 35,2 34,4 33,7 33,1 32,5 31,9 31,4 30,9 30,4 30

859 53 49,5 47 45 43,4 32,1 40,9 39,9 39 38,2 37,4 36,7 36,1 35,5 34,9 34,4 33,9 33,4 33

121A

Distance from the heat pump in m

12345678910 11 12 13 14 15 16 17 18 19 20

Directivity

factor Sound pressure level at max. heating output in dB(A)

256 50 46,5 44 42 40,4 39,1 37,9 36,9 36 35,2 34,4 33,7 33,1 32,5 31,9 31,4 30,9 30,4 30

459 53 49,5 47 45 43,4 42,1 40,9 39,9 39 38,2 37,4 36,7 36,1 35,5 34,9 34,4 33,9 33,4 33

862 56 52,5 50 48 46,4 45,1 43,9 42,9 42 41,2 40,4 39,7 39,1 38,5 37,9 37,4 36,9 36,4 36

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