Vaillant FlexoTHERM exclusive VWF 87/4 Manuel utilisateur

For the operator

Operating instructions

flexoTHERM exclusive

VWF 57 - 197/4, VWF 57 - 117/4 230V

GB, IE

Operating instructions

Publisher/manufacturer

Vaillant GmbH

Berghauser Str. 40 D-42859 Remscheid

Tel. +49 21 91 18‑0 Fax +49 21 91 18‑2810

[email protected] www.vaillant.de

Contents

2Operating instructions flexoTHERM exclusive 0020213396_02

Contents

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

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

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

1.3 General safety information............. 4

2 Notes on the documentation ...... 7

2.1 Observing other applicable

documents ..................................... 7

2.2 Storing documents......................... 7

2.3 Applicability of the instructions....... 7

3 System overview.......................... 7

3.1 Heat pump system design ............. 7

4 Product description..................... 8

4.1 Product design............................... 8

4.2 Serial number ................................ 8

4.3 Opening the front flap .................... 8

4.4 Operator control panel ................... 8

4.5 CE label ......................................... 9

4.6 Safety devices ............................... 9

5 Operating.................................... 10

5.1 Basic display................................ 10

5.2 Operating concept ....................... 11

5.3 Menu display................................ 11

5.4 Operating levels........................... 11

5.5 Starting up the product ................ 12

5.6 Adjusting the target cylinder

temperature ................................. 12

5.7 Yield indicator .............................. 12

5.8 Displaying the Live Monitor.......... 12

5.9 Displaying the building circuit

pressure....................................... 12

5.10 Displaying the environment

circuit pressure ............................ 12

5.11 Reading the operating

statistics ....................................... 12

5.12 Setting the language.................... 12

6 Maintenance and care ............... 13

6.1 Fulfilling requirements for the

installation site ............................. 13

6.2 Caring for the product .................. 13

6.3 Reading maintenance

messages .................................... 13

6.4 Checking the system pressure .... 13

6.5 Checking the brine circuit's

filling pressure.............................. 13

7 Troubleshooting ........................ 13

7.1 Fault message ............................. 13

8 Decommissioning...................... 14

8.1 Switching off the heat pump ........ 14

8.2 Permanently decommissioning

the product................................... 14

8.3 Recycling and disposal ................ 14

9 Guarantee and customer

service ........................................ 15

9.1 Guarantee.................................... 15

9.2 Customer service......................... 15

Appendix ............................................... 16

A Overview of the operator's

operating level ........................... 16

Safety 1

0020213396_02 flexoTHERM exclusive Operating instructions 3

1 Safety

1.1 Action-related warnings

Classification of action-re-

lated warnings

The action-related warnings

are classified in accordance

with the severity of the pos-

sible 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 envir-

onmental damage

1.2 Intended use

There is a risk of injury or death

to the user or others, or of dam-

age to the product and other

property in the event of im-

proper use or use for which it

is not intended.

The system is intended exclus-

ively for domestic use.

The system is intended as a

heat generator with cooling

function for closed heating

installations and for hot wa-

ter generation. Operation of

the pump outside the applica-

tion limits results in the heat

pump being switched off by

the internal control and safety

devices.

Cooling mode with radiator

heating systems is not permit-

ted since radiators do not have

an adequate heat transfer sur-

face area.

Intended use includes the fol-

lowing:

–observance of the operating

instructions included for the

product and any other system

components

–compliance with all inspection

and maintenance conditions

listed in the instructions.

This product can be used by

children aged from 8 years

and above and persons with

reduced physical, sensory or

mental capabilities or lack of

experience and knowledge if

they have been given supervi-

sion or instruction concerning

use of the product in a safe way

and understand the hazards in-

volved. Children must not play

with the product. Cleaning and

1 Safety

4Operating instructions flexoTHERM exclusive 0020213396_02

user maintenance work must

not be carried out by children

unless they are supervised.

Any other use that is not spe-

cified in these instructions, or

use beyond that specified in this

document shall be considered

improper use. Any direct com-

mercial 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 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 ap-

plicable documents, particu-

larly the "Safety" section and

the warnings.

▶Only carry out the activities

for which instructions are

provided in these operating

instructions.

1.3.2 Risk of death due to

explosive and flammable

materials

▶Do not use or store explosive

or flammable materials (e.g.

petrol, paper, paint) in the in-

stallation room of the product.

1.3.3 Risk of death due

to changes to the

product or the product

environment

▶Never remove, bridge or

block the safety devices.

▶Do not tamper with any of the

safety devices.

▶Do not damage or remove

any seals on components.

Only authorised competent

persons or customer services

may modify sealed compon-

ents.

▶Do not make any changes to:

–The product itself

–The product environment

–The brine fluid, air and elec-

tricity supply lines

–The drain line and expan-

sion relief valve for the heat

source circuit

–The constructional condi-

tions that may affect the

operational reliability of the

product

1.3.4 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.

Safety 1

0020213396_02 flexoTHERM exclusive Operating instructions 5

▶Always wear gloves and pro-

tective goggles.

▶Do not inhale or swallow.

▶Observe the safety data sheet

that accompanies the brine

fluid.

1.3.5 Preventing the risk of

injury from freezing

as a result of touching

coolant

The product is supplied with an

operational filling of R 410 A

refrigerant. Escaping coolant

may cause freezing if the exit

point is touched.

▶If coolant escapes, do not

touch any components of the

product.

▶Do not inhale any vapours or

gases that escape from the

refrigerant circuit as a result

of leaks.

▶Avoid skin or eye contact with

the coolant.

▶In the event of skin or eye

contact with the coolant, seek

medical advice.

1.3.6 Risk of injury and

material damage due to

maintenance and repairs

carried out incorrectly or

not carried out at all

▶Never attempt to carry out

maintenance work or repairs

on your product yourself.

▶Faults and damage should

be immediately rectified by a

competent person.

▶Adhere to the maintenance

intervals specified.

1.3.7 Risk of material damage

caused by frost

▶Ensure that the heating in-

stallation always remains in

operation during freezing con-

ditions and that all rooms are

sufficiently heated.

▶If you cannot ensure the op-

eration, have a competent

person drain the heating in-

stallation.

1.3.8 Avoid environmental

damage caused by

escaping coolant

The product contains R 410 A

refrigerant. The coolant must

not be allowed to escape into

the atmosphere. R410A is a

fluorinated greenhouse gas

covered by the Kyoto Protocol,

with a GWP of 2088 (GWP =

global warming potential). If

this gas escapes into the atmo-

sphere, its impact is 2088 times

greater than the natural green-

house gas CO2.

Before the product is disposed

of, the coolant that is contained

in it must be completely drained

into a suitable vessel so that

1 Safety

6Operating instructions flexoTHERM exclusive 0020213396_02

it can then be recycled or dis-

posed of in accordance with

regulations.

▶Ensure that only officially cer-

tified competent persons with

appropriate protective equip-

ment carry out maintenance

work on the refrigerant circuit

or access it.

▶Arrange for the refriger-

ant that is contained in the

product to be recycled or

disposed of by a certified

competent person in accord-

ance with the regulations.

Notes on the documentation 2

0020213396_02 flexoTHERM exclusive Operating instructions 7

2 Notes on the

documentation

2.1 Observing other applicable

documents

▶You must observe all operating instruc-

tions enclosed with the system compon-

ents.

2.2 Storing documents

▶Keep this manual and all other applic-

able documents safe for future use.

2.3 Applicability of the

instructions

These instructions apply only to:

Applicability: Great Britain

OR Ireland

Product

VWF 57/4

VWF 87/4

VWF 117/4

VWF 157/4

VWF 197/4

Applicability: Great Britain

OR Ireland

Product

VWF 57/4 230 V

VWF 87/4 230 V

VWF 117/4 230 V

3 System overview

3.1 Heat pump system design

The heat pump system consists of the

following components:

–Heat pump

–System controller (from VRC 700)

–Outside temperature sensor with DCF

receiver

–System sensor, if required

–With ground heat source: Ground

sensor

4 Product description

8Operating instructions flexoTHERM exclusive 0020213396_02

–For the air heat source (only products

with 400 V): Air/brine collector(s)

–With well water heat source: Groundwa-

ter module

There is an opportunity for active cooling

to take place via circulation reversal for the

heat sources air, ground and groundwater.

4 Product description

4.1 Product design

1 Front flap

2 Recessed

handle

3 Control elements

4 Plate showing

the serial num-

ber

4.2 Serial number

The serial number is located on a plate be-

hind the front flap. The 7th to 16th digits of

the serial number form the article number.

4.3 Opening the front flap

1. Take hold of the recessed handle in

the front flap on the left- or right-hand

side.

2. Pull the recessed handle.

4.4 Operator control panel

50 d

kWh

reset

1 Displays the

daily environ-

mental energy

yield

2 Display of the

current as-

signment of

the right-hand

selection button

3 Left- and right-

hand selection

buttons

4and but-

ton

5 Reset button

6 Access to the

menu for addi-

tional information

7 Display of the

current configur-

ation of the left-

hand selection

button

8 Displays the

symbols for the

current operat-

ing status of the

heat pump

9 Display

Product description 4

0020213396_02 flexoTHERM exclusive Operating instructions 9

4.5 CE label

The CE label shows that the products

comply with the basic requirements of the

applicable directives as stated on the iden-

tification plate.

The declaration of conformity can be

viewed at the manufacturer's site.

4.6 Safety devices

4.6.1 Frost protection function

The frost protection function for the system

is controlled via the system controller. If

the system controller fails, the heat pump

guarantees limited frost protection for the

heating circuit.

4.6.2 Protection against low heating

water pressure

This function continuously monitors the

pressure of the heating water in order to

prevent a possible loss of heating water.

4.6.3 Brine loss protection system

The brine loss protection system continu-

ously monitors the fluid pressure in the

environment circuit in order to prevent a

possible shortage of fluid.

4.6.4 Freeze protection

This function prevents the evaporator from

freezing when the heat source temperat-

ure drops below a certain value.

The outlet temperature of the heat source

is constantly measured. If the outlet tem-

perature of the heat source falls below a

certain value, the compressor temporarily

switches off and displays a status mes-

sage. If this fault occurs three times in a

row, it is switched off and a fault message

is displayed.

4.6.5 Pump- and valve-blocking

protection system

This function prevents the pumps for heat-

ing water and brine and all diverter valves

from sticking. The pumps and the valves,

which were out of operation for 23 hours,

are switched on for 10 - 20 seconds, one

after the other.

4.6.6 High-pressure pressure switch

in the refrigeration circuit

The high-pressure pressure switch shuts

down the heat pump if the pressure in the

coolant circuit is too high. If the pressure

in the heat pump's refrigeration circuit ex-

ceeds the maximum pressure, the high-

pressure pressure switch temporarily shuts

down the heat pump. Following a waiting

period, another attempt is made to start

the heat pump. After three failed start at-

tempts in succession, a fault message is

displayed.

–Refrigeration circuit pressure max.: 4.60

MPa (g) (46.00 bar (g))

–Waiting period: 5 minutes (after the first

occurrence)

–Waiting period: 30 minutes

(after the second and every further oc-

currence)

The fault counter is reset if both of the

following conditions are met:

–Heat requirement without switching off

prematurely

–60 minutes of uninterrupted operation

4.6.7 Hot gas thermostat in the

refrigeration circuit

The hot gas thermostat shuts down the

heat pump if the temperature in the refri-

geration circuit is too high. If the temperat-

ure in the heat pump's refrigeration circuit

exceeds the maximum temperature, the

hot gas thermostat temporarily shuts down

the heat pump. Following a waiting period,

another attempt is made to start the heat

5 Operating

10 Operating instructions flexoTHERM exclusive 0020213396_02

pump. After three failed start attempts in

succession, a fault message is displayed.

–Max. refrigeration circuit temperature:

135 ℃

–Waiting period: 5 minutes (after the first

occurrence)

–Waiting period: 30 minutes

(after the second and every further oc-

currence)

The fault counter is reset if both of the

following conditions are met:

–Heat requirement without switching off

prematurely

–60 minutes of uninterrupted operation

4.6.8 Safety cut-out (SCO) in the

heating circuit

If the temperature in the heating circuit of

the internal auxiliary electric heating ex-

ceeds the maximum temperature, the SCO

shuts down the auxiliary electric heating as

a securing measure. Following a waiting

period, another attempt is made to start

the auxiliary electric heating. A fault mes-

sage is displayed that can only be reset by

pressing the Reset button or by switching

the heat pump off and on again.

–Max. heating circuit temperature: 85 ℃

5 Operating

5.1 Basic display

50 d

kWh

Sym-

bol

Meaning Explanation

Compressor –Filled: Com-

pressor in op-

eration

–Not filled:

Compressor

not in

operation

bar

Current filling

pressure of the

heating system

The dashed lines

show the permit-

ted range.

–Permanently

on: Filling

pressure in

the permitted

range.

–Flashing:

Filling pres-

sure outside

the permitted

range.

Pumps –Left continu-

ously on: Brine

pump in oper-

ation

–Right con-

tinuously on:

Heating pump

in operation

Auxiliary electric

heating

–Flashing: Aux-

iliary electric

heating in op-

eration

–+ : Aux-

iliary electric

heating act-

ive for heating

mode

–+ : Aux-

iliary electric

heating active

for hot water

handling mode

Green iQ mode –Product

equipped with

energy-saving

technology

Heating mode –Continuously

on: Heating

mode active

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