Vaillant aroCOLLECT VWL 11/4 SA Installation And Maintenance Instructions Manual

For the competent person

Installation and maintenance instructions

aroCOLLECT

VWL 11/4 SA

GB

Installation and maintenance instructions

Publisher/manufacturer
Vaillant GmbH

Berghauser Str. 40 D-42859 Remscheid
Tel. [phone]‑0 Fax [phone]‑2810
[e-mail] www.vaillant.de

Contents

2 Installation and maintenance instructions aroCOLLECT 0020217119_01

Contents

1 Safety .................................................................... 3

1.1 Action-related warnings ......................................... 3

1.2 Intended use.......................................................... 3

1.3 General safety information .................................... 3

1.4 Regulations (directives, laws, standards) .............. 4

2 Notes on the documentation .............................. 6

2.1 Observing other applicable documents ................. 6

2.2 Storing documents................................................. 6

2.3 Applicability of the instructions .............................. 6

3 System overview.................................................. 6

3.1 Heat pump system design ..................................... 6

4 Product description............................................. 6

4.1 Information on the identification plate.................... 6

4.2 CE label ................................................................. 6

4.3 Product design....................................................... 7

5 Installation............................................................ 7

5.1 Checking the scope of delivery.............................. 7

5.2 Removing the transport locks ................................ 7

5.3 Selecting the installation site ................................. 8

5.4 Dimensions............................................................ 9

5.5 Minimum clearances.............................................. 9

5.6 Creating the foundation ....................................... 11

5.7 Hydraulics installation.......................................... 12

5.8 Filling and purging the brine circuit ...................... 14

5.9 Electrical installation ............................................ 17

6 Start-up ............................................................... 20

6.1 Start-up ................................................................ 20

6.2 Handing the product over to the operator............ 20

7 Inspection and maintenance ............................ 20

7.1 Inspection and maintenance interval ................... 20

7.2 Carrying out inspection and maintenance

work ..................................................................... 21

7.3 Procuring spare parts .......................................... 21

7.4 Cleaning the product............................................ 21

7.5 Cleaning the condensate discharge .................... 21

8 Decommissioning.............................................. 21

8.1 Temporary decommissioning .............................. 21

8.2 Permanently decommissioning............................ 21

9 Customer service............................................... 21

10 Recycling and disposal..................................... 21

Appendix ............................................................................ 22

A Product diagram ................................................ 22

A.1 Product diagram .................................................. 22

B Connection diagram .......................................... 23

C Technical data.................................................... 24

C.1 General................................................................ 24

C.2 Air heat source..................................................... 26

Index ................................................................................... 29

Safety 1

0020217119_01 aroCOLLECT Installation and maintenance instructions 3

1 Safety

1.1 Action-related warnings

Classification of action-related warnings

The action-related warnings are classified in
accordance with the severity of the possible
danger using the following warning signs and
signal words:

Warning symbols and signal words

Danger!

Imminent danger to life or risk of
severe personal injury

Danger!

Risk of death from electric shock

Warning.

Risk of minor personal injury

Caution.

Risk of material or environmental
damage

1.2 Intended use

There is a risk of injury or death to the user or
others, or of damage to the product and other
property in the event of improper use or use
for which it is not intended.

The product is intended exclusively for do­mestic use as an air/brine collector to be
connected to the VWF xx1/4, VWF xx2/4,
VWF xx7/4, VWF xx7/4 S1 or VWF xx8/4
heat pumps. Operating the heat pump in con­junction with the air/brine collector and out­side the application limits results in the heat
pump being switched off by the internal con­trol and safety devices.

Intended use includes the following:

– observance of accompanying operating,

installation and servicing instructions for
the product and any other system compon­ents

– installing and fitting the product in accord-

ance with the product and system approval

– compliance with all inspection and main-

tenance conditions listed in the instruc­tions.

Intended use also covers installation in ac­cordance with the IP class.

Any other use that is not specified in these
instructions, or use beyond that specified in

this document shall be considered improper
use. Any direct commercial or industrial use
is also deemed to be improper.

Caution.

Improper use of any kind is prohibited.

1.3 General safety information

1.3.1 Risk caused by inadequate
qualifications

The following work must only be carried out
by competent persons who are sufficiently
qualified to do so:

– Installation
– Disassembly
– Installation
– Start-up
– Maintenance
– Repair
– Decommissioning

▶ Observe all instructions that are included

with the product.

▶ Proceed in accordance with the current

state of technology.

▶ Observe all applicable directives, stand-

ards, laws and other regulations.

1.3.2 Danger caused by improper
operation

Improper operation may present a danger to
you and others, and cause material damage.

▶ Carefully read the enclosed instructions

and all other applicable documents, par­ticularly the "Safety" section and the warn­ings.

▶ Only carry out the activities for which in-

structions are provided in these operating
instructions.

1.3.3 Risk of death due to lack of safety
devices

The schematic drawings included in this doc­ument do not show all safety devices re­quired for correct installation.

▶ Install the necessary safety devices in the

system.

▶ Observe the applicable national and inter-

national laws, standards and guidelines.

1 Safety

4 Installation and maintenance instructions aroCOLLECT 0020217119_01

1.3.4 Risk of death from electric shock

There is a risk of death from electric shock if
you touch live components.

Before commencing work on the product:

▶ Disconnect the product from the power

supply by switching off all power supplies
(electrical partition with a contact opening
of at least 3 mm, e.g. fuse or line protec­tion switch).

▶ Secure against being switched back on

again.

▶ Wait for at least 3 minutes until the capa-

citors have discharged.

▶ Check that there is no voltage.

1.3.5 Risk of injury due to chemical burns
caused by brine fluid

The brine fluid ethylene glycol is harmful to
health.

▶ Avoid contact with the skin and eyes.
▶ Always wear gloves and protective

goggles.

▶ Do not inhale or swallow.
▶ Observe the safety data sheet that accom-

panies the brine fluid.

1.3.6 Risk of burns due to hot and cold
components

There is a risk of burns and frostbite from any
uninsulated pipelines and from the auxiliary
electric heating.

▶ Only carry out work on the components

once they have reached ambient temperat­ure.

1.3.7 Risk of death due to changes to the
product or the product environment

▶ Never remove, bridge or block the safety

devices.

▶ Do not alter the safety devices in any way.
▶ Do not damage or remove any seals on

components. Only authorised competent
persons or customer services may modify
sealed components.

▶ Do not make any changes to:

– The product itself
– The product environment
– The brine fluid, air and current supply

lines

– The drain line and expansion relief valve

for the heat source circuit

– to constructional conditions that may

affect the operational reliability of the
product

1.3.8 Material damage due to unsuitable
installation surface

The installation surface must be even and
have sufficient load-bearing capacity to sup­port the operating weight of the product. An
uneven installation surface may cause leaks
in the product.

If the installation surface does not have suffi­cient load-bearing capacity, the product may
topple.

There is a risk of death if the connections are
subject to leaks.

▶ Make sure that the product is positioned

flush against the installation surface.

▶ Ensure that the installation surface has

sufficient load-bearing capacity to bear the
operating weight of the product.

1.3.9 Risk of injury during transport due
to a high product weight

▶ Make sure that the product is transported

by at least two people.

1.3.10 Risk of material damage caused by

using an unsuitable tool

▶ Use the correct tool to tighten or loosen

screw connections.

1.4 Regulations (directives, laws,
standards)

When setting up, installing and operating the
heat pump and the domestic hot water cylin­der, you must observe the following points in
particular:

– Local specifications, regulations, rules and

directives regarding electrical connections

– Local specifications, regulations, rules and

directives for the power company

– Local specifications, regulations, rules and

directives for the water supply company

– Local specifications, regulations, rules and

directives regarding the use of geothermal
energy

Safety 1

0020217119_01 aroCOLLECT Installation and maintenance instructions 5

– Local specifications, regulations, rules and

directives regarding the integration of heat
source systems and heating installations

– Local specifications, regulations, rules and

directives regarding saving energy

– Local specifications, regulations, rules and

directives regarding hygiene

2 Notes on the documentation

6 Installation and maintenance instructions aroCOLLECT 0020217119_01

2 Notes on the documentation

2.1 Observing other applicable documents

▶ You must observe all the operating and installation in-

structions included with the system components.

2.2 Storing documents

▶ Pass these instructions and all other applicable docu-

ments on to the system operator.

2.3 Applicability of the instructions

These instructions apply only to:

Product

VWL 11/4 SA

3 System overview

3.1 Heat pump system design

5 - 11 kW

15 - 19 kW

The heat pump system consists of the following components,
as a minimum:

– Air/brine collector(s)
– Heat pump
– System controller

The heat pump system generates heat in heating installa­tions and in hot water generation by extracting the thermal
energy from a heat source circuit and releasing this into
the heating circuit via the internal refrigeration circuit. At the
same time, there is an opportunity for active cooling to take
place via circulation reversal. For this, the heat pump is con­nected to the air/brine collector(s). The air/brine collector is
used to exchange heat between the brine circuit and the out­side air.

4 Product description

4.1 Information on the identification plate

The identification plate is attached at the factory to the un­derside of the electronics box.

Information on the identi­fication plate

Meaning

Rated voltage and frequency of
the fan, controller and de-icer

P max Maximum rated power

Rated power of the fan and
controller

De-icer rated power

→ A2/W35

Rated power and pressure of
the air/brine collector at an air
inlet temperature of 2 °C and
a heating flow temperature of
35 °C

IP Level of protection

Verband deutscher Elektrotech­niker (German Association for
Electrical, Electronic & Informa­tion Technologies)

Electromagnetic Compatibility
in accordance with the Verband
deutscher Elektrotechniker

Read the instructions.

Bar code with serial number,

7th to 16th digit = product article
number

4.2 CE label

The CE label shows that the products comply with the basic
requirements of the applicable directives as stated on the
identification plate.

The declaration of conformity can be viewed at the manufac­turer's site.

Installation 5

0020217119_01 aroCOLLECT Installation and maintenance instructions 7

4.3 Product design

4.3.1 Front view, closed

1

1 Type designation with

serial number

4.3.2 Front view, open

12

11

3

6

2

1

8

9

4

5

10

7

1 Purging valves

2 Simple identification

plate

3 Electronics box

4 De-icer

5 Connection box

6 Identification plate with

service sticker

7 Warning sticker

8 Connecting the brine

line to the heat pump
(hot brine)

9 Connecting the brine

line from the heat pump
(cold brine)

10 Base (accessory)

11 Condensate tray

12 Ventilator

5 Installation

5.1 Checking the scope of delivery

1. Carefully remove the packaging and padding without
damaging the parts of the product.

2. Check that the scope of delivery is complete.

Quantity Description

1 Box: Cover and side sections of the casing

2 Louvred grill (pre-installed)

1 Air/brine collector

1 Installation material:

– 2 x O-ring seals
– 10 x M8x20 screws (to secure the cover,

the side casing and the air/brine collector
to the base (accessories))

1 Enclosed documentation

5.2 Removing the transport locks

2 x

▶ Remove the transport locks as shown in the illustration.

5 Installation

8 Installation and maintenance instructions aroCOLLECT 0020217119_01

5.3 Selecting the installation site

Caution.
Risk of material damage caused by corro-

sion.

Caustic vapours may cause corrosion dam­age on the product. The extracted air must be
free from ammonia, methane gas and other
corrosive elements.

▶ Do not install the product close to stables

and manure pits.

▶ Set up the product outdoors away from rooms. Depend-

ing on the weather, condensate may form and appear
under the collector.

– Maximum installation height: 2000 m above normal

sea level

▶ Ensure that there is a sufficiently stable, frost-proof, hori-

zontal foundation that meets local requirements and com­plies with the rules of structural engineering.

▶ For efficiency reasons, the clearance between the heat

pump and the air/brine collector should be kept as small
as possible.

– Total length of the connection line, cold brine and hot

brine: 2 x 30 m

▶ If the clearance between the product and the building

falls below 3 m, position the product in such a way that
the outlet side does not point towards the building.

▶ Assess the installation site to ensure that no persons can

be at risk at the outlet side. No public roads/pathways
should run through the area of the outlet side.

▶ Install the product with the intake side towards the wall

(recommended installation).

▶ Comply with the local and statutory minimum clearances

with regards to:

– Vegetation
– Walls
– Awnings
– Open fire or embers
– Children's toys

▶ When selecting the installation site, take into consider-

ation the fact that, during full load mode in winter, noise
(depending on the current output requirement, up to ap­prox. 66 dB(A) sound power level) is emitted from the
product, and this noise may be amplified by reverberative
surfaces.

▶ Observe the national regulations regarding noise.

Sound propagation form: Hemisphere

Sound propagation with a free-standing air/brine collector.

Sound propagation form: Quarter-sphere

Sound propagation for the adjacent building: On just one
side.

Installation 5

0020217119_01 aroCOLLECT Installation and maintenance instructions 9

Sound propagation form: An eighth of a sphere

Sound propagation for the adjacent building: On two sides
and at a right-angle.

LWA= L

PFA

– 10 lg S

LWA= Sound pressure level (dB(A))

L

PFA

= Sound power level (dB(A))

S = Sound propagation form* (clearance from the product in
m)²

Sound propagation form: Hemisphere = 6.28

Sound propagation form: Quarter-sphere = 3.14

Sound propagation form: Eighth of a sphere = 1.57

Example

L

PFA

= 54 dB(A), max. sound power level without noise re-

duction

Sound propagation form = Hemisphere = 6.28

Distance to the product = 10 m

LWA= 54 dB(A) – 10 lg (6.28 * 100)

LWA= 54 dB(A) – 10 lg (628)

LWA= 54 dB(A) – 28

LWA= 26 dB(A)

▶ Choose the installation site so that the legally required

emissions values for noise outside of buildings can be
complied with, without having to use the heat pump sys­tem's noise reduction function, if possible.

▶ In certain weather conditions, take into consideration

the possibility of black ice forming directly in front of the
product's outlet side; if condensate escapes, the black
ice may form all around the product.

5.4 Dimensions

1192

785

1256

1162

5.5 Minimum clearances

≥ 0,3 m

≥ 0,5 m

≥ 0,5 m

≥ 3 m

ca. 0,5 m

≥ 0,5 m

< +5 °C

Clearances that must be complied with for an air/brine col­lector

5 Installation

10 Installation and maintenance instructions aroCOLLECT 0020217119_01

ca. 0,5 m

≥ 0,3 m

≥ 0,5 m

≥ 0,5 m
≤ 5 m

≥ 3 m

≥ 0,5 m

< +5 °C

< +5 °C

≥ 0,5 m

Clearances that must be complied with for two air/brine col­lectors

Positioning of the collectors

▶ Use the mounting base, which is available as an access-

ory, for the installation.

▶ To guarantee sufficient air flow and to facilitate mainten-

ance work, observe the minimum clearances that are
specified above.

▶ Ensure that there is sufficient room to install the hydraulic

lines.

▶ If the product is to be installed in areas where heavy

snow falls, ensure that the snow does not accumulate
around the product and that the minimum clearances
specified above are observed. If you cannot ensure this,
install an additional heat generator in the heating circuit.
An elevating base and condensate tray heating are avail­able as accessories.