Wolf BWL-1 S Installation And Operating Instructions Manual

Brand: Wolf

Model: BWL-1 S

Category: Heat pumps

Type: Installation And Operating Instructions Manual

Installation and operating instructions

Split air/water heat pump

BWL-1 S(B)-07/10/14

Wolf GmbH • Postfach 1380 • D-84048 Mainburg • Tel. (+49) 8751/74-0 • Fax (+49) 8751/741600 • Internet: www.wolf-heiztechnik.de

Document no.: 3064298_201507 Subjecttotechnicalmodications

Integrated system log book

From:

HCM-3 FW 1.30

AM FW 1.40

2 3064298_201507

Table of contents

Contents ............................................................................................Page

Information, layout and equipment

1. Safety information / standards and regulations .........................................................5

2. General information ................................................................................................... 6

3. Information on the heat pump ................................................................................7-8

4. Standard delivery ......................................................................................................9

5. Layout .................................................................................................................10-11

6. Equipment features .................................................................................................12

7. Dimensions BWL-1S(B) ....................................................................................13-15

Siting

8. Siting information / minimum room volume .......................................................16-17

9. Siting the outdoor module .......................................................................................18

10. Siting the indoor module ........................................................................................19

11. Gravel bed and foundation diagram for the outdoor module .................................20

12. Anchoring the outdoor module and providing vibration isolation ...........................21

13. Wall mounting the outdoor module ........................................................................22

Installing the heat pump

14. Positioning the wall duct ........................................................................................ 23

15. Routing the refrigerant lines .................................................................................24

16. Connecting the refrigerant lines to the outdoor module .......................................25

17. Connecting the refrigerant lines of the indoor module ..........................................26

18. Filling the refrigerant lines ................................................................................27-28

19. Testing the refrigerant lines for leaks .....................................................................29

20. Connecting the heating/cooling circuit and the DHW circuit ............................. 30-32

21. Split heating centre with CEW-2-200.....................................................................33

Control system and power supply

22. Power supply / General information ......................................................................34

23. Connection diagram ..............................................................................................35

24. Power supply to the outdoor module ..................................................................... 36

25. Power supply to the indoor module ..................................................................37-45

25.1 Electric heater connection ............................................................................ 38

25.2 PSU / PV / Smart grid / BUS cable connection .......................................38-39

25.3 HCM-3 control PCB connection ...................................................................40

25.4 Wiring diagram for HCM-3 / AWO ...........................................................44-45

33064298_201507

Control system modules

26. Display module / programming unit installation ..................................................... 46

27. Programming unit BM-2 ........................................................................................47

28. AM display module ................................................................................................48

Operating the AM display module

29. Operating the AM display module .........................................................................49

29.1 Programming the quick start keys ................................................................ 49

Adjusting the set heating temperature .......................................................49

Adjusting the set DHW temperature ............................................................49

29.2 Boiler / status / messages ............................................................................50

29.2.1 Heat pump operating mode ..................................................................51

29.2.2 Heat pump status .................................................................................51

29.3 System data displays (menu structure) ......................................................52

29.4 Default settings / Setting options (menu structure) ....................................53

29.4.1 Language .............................................................................................53

29.4.2 Key lock ................................................................................................54

29.4.3 DHW operating mode (ECO/Comfort) ..................................................54

29.4.4 DHW quick heat-up ..............................................................................55

29.4.5 Energy saving mode (no function) .......................................................55

29.4.6 Active cooling .......................................................................................55

29.5 Heating contractor (menu structure) ..........................................................56

Contractor level

30. Contractor level password ..................................................................................... 57

31. Contractor level ................................................................................................58-78

Overview of contractor level .................................................................................58

31.1 Relay test .....................................................................................................58

31.2 System .........................................................................................................58

31.3 Parameters ...................................................................................................59

31.3.1 Overview of contractor parameters .................................................60-61

31.3.2 Description of contractor parameters ..............................................62-64

  31.3.3Overviewofsystemcongurations ......................................................65

   Systemcongurations .......................................................................... 66-77

31.4 Parameter reset............................................................................................78

31.5 Special..........................................................................................................78

31.6 IDU service (indoor unit)...............................................................................78

31.7 ODU service (outdoor unit)...........................................................................79

31.8 Fault history ..................................................................................................79

31.9 Deleting the fault history ...............................................................................80

31.10 Acknowledging faults ..................................................................................80

Table of contents

Contents ............................................................................................Page

3064298_201507

Specication

32. Sound level ............................................................................................................81

33.Conguringthedualmodepoint ...........................................................................82

34. - 48. Heating output, el. power consumption, COP ..........................................83-97

49. Heating circuit residual head .................................................................................98

50.Specication ...................................................................................................99-100

51. Sensor resistances .............................................................................................. 101

Commissioning

52. Commissioning .................................................................................................... 102

System log book

53. System log book ...........................................................................................103-107

53.1 Responsibilities of the operator .................................................................. 103

53.1.1 Annual leak test .............................................................................103

53.1.2 Compulsory documentation ..........................................................104

53.1.3 Dismantling the heat pump and disposing of the refrigerant .........104

53.2 System data ........................................................................................105-107

Information

54. Maintenance / cleaning ................................................................................108-109

55. Troubleshooting ............................................................................................ 110-112

56. Abbreviations / key .............................................................................................. 113

57.ProductcheaccordingtoRegulation(EU)no.811/2013............................ 114-117

58. Technical parameters according to EU regulation no. 813/2013 ......................... 118

DECLARATION OF CONFORMITY ............................................................................ 119

Table of contents

53064298_201507

Safety instructions

The following symbols are used in this description to highlight important

information concerning personal and operational safety:

Denotes instructions with which you must strictly comply to prevent risk or injury to

individuals, faults or damage to the appliance.

Danger due to live electrical components.

Caution: Turn off the ON/OFF switch before removing the casing.

Never touch electrical components or contacts when the ON/OFF switch is in the ON

position. This carries a risk of electrocution that could result in injury or death. The

terminals are live even when the ON/OFF switch is in the OFF position.

Indicates technical instructions that must be observed to prevent malfunction

or appliance damage.

Please note

1. Safety information,

standards and regulations

Standards / Regulations

The appliance and control accessories comply with the following regulations:

EC Directives

2006/42/EG Machinery Directive

2006/95/EC Low Voltage Directive

2004/108/EC EMC Directive

DIN EN standards

DIN EN 349

DIN EN 378

DIN EN 12100

DIN EN 14511

DIN EN 60335-1

DIN EN 60335-2-40

DIN EN 60529

DIN EN 60730-1

DIN EN 55014-1

DIN EN 55014-2

National standards / directives

DE:

DIN 8901

BGR 500 Part 2

VDI 2035 Part 1-3

Drinking water ordinance

CH:

NEV (SR 743.26)

Certicateofcompetence

The handling of refrigerant and work on the refrigerant circuit must be carried

outbyarefrigerationengineerorothersuitablyqualiedperson,suchasa

heatingcontractorwithacerticateofcompetence(topara5,section3ofthe

ChemKlimaschutzV [or local regulations] in conjunction with (EC) Regulation

No. 303/2008 Category I). Applicable standards and regulations and recognised

engineering standards must be observed.

This appliance is not designed to be operated by persons

(including children) with restricted physical, sensory or

mental capacities or who lack the necessary experience

and/or knowledge, unless they are supervised by a

person responsible for their safety or have received

instructions on how to use the appliance from this person.

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The heat pump system must be sited, installed, set up and commissioned by

aqualiedcontractor,incompliancewiththeapplicablestatutoryregulations,

ordinances and directives and the installation instructions.

The tilting angle of the heat pump during transport must be no greater than 45°.

Under no circumstances must the components and pipework of the refrigerant circuit,

the heating circuit or the heat source side be used to transport the appliance.

The heat pump must only be operated with outdoor air as the heat source. The air-

conducting sides must not be constricted or obstructed.

For safety reasons, the power supply to the heat pump and the control system must

not be interrupted, even outside the heating period.

Reason: No monitoring of HC pressure, no frost protection, no anti-seizing pump

protection.

Theappliancemayonlybeopenedbyaqualiedcontractor.

Before opening the appliance, all electrical circuits must be isolated from the power

supply. Take precautions to prevent the fan from starting up unintentionally. The

system must be isolated from the power supply across all poles and safeguarded

against reconnection.

Workontherefrigerantcircuitmustonlybecarriedoutbyaqualiedcontractor.

DonotuseTeonsealantintheheatingcircuit,asthismayresultinleaks.

Never treat appliance surfaces with scouring agents or cleaning agents containing

acid or chlorine.

When siting the heat pump, position and install it securely, to prevent it slipping or

sliding during operation.

The outdoor unit may only be installed outdoors.

Only replace faulty components with original Wolf spare parts.

Observethespeciedelectricalfuseratings

(seeSpecication).

AnydamageorlossresultingfromtechnicalmodicationstoWolfcontrolsystemsis

excluded from our warranty.

Risk of water damage and faulty operation through freezing.

The heat pump is automatically protected from frost when it is switched on.

For installation in Austria:

Observe the ÖVE regulations and requirements and those of your local power supply

utility.

Thelocalpowersupplyutilitymustbenotiedwhenaheatpumpisinstalled.

The installation and operating instructions are valid as of software version

1.30 for printed circuit board HCM-3 and as of software version 1.40 for the AM

display module.

Please note

The following regulations and directives must be observed when carrying out

installation, commissioning, maintenance and repair work:

2. General information

73064298_201507

3. Information on the heat pump

The heat pump converts the low-temperature heat contained in the outdoor air into

high-temperature heat. To achieve this, air is drawn in by the fan and routed over the

evaporator (1).

The evaporator contains liquid heat transfer medium. This boils and evaporates at low

temperatures and low pressures. The required evaporation heat is extracted from the

air, which cools down in the process. The air is then released back into the atmosphere.

The evaporated heat transfer medium is drawn in by compressor (2) and compressed

to a higher pressure. The compressed, gaseous heat transfer medium is pushed into

the condenser (3), where it condenses at high pressure and high temperature. The

condensation heat is transferred to the heating water, causing the water temperature

to rise.

The energy transferred to the heating water corresponds to the energy that was

previously extracted from the outdoor air, plus the small amount of electrical energy

required for compression.

The pressure in the condenser and upstream of the expansion valve (4) is high. Via

the expansion valve, a temperature-sensitive pressure reduction occurs, causing the

pressure and temperature to drop. The cycle then starts again.

Operating principle of a heat pump

Application area

The split air/water heat pump for heating water temperatures up to 55 °C and air

temperatures down to -15 °C or -20 °C is designed exclusively for the heating of heating

water and domestic hot water. The heat pump can be used in new or existing heating

systems,takingintoconsiderationtheapplicationlimits(see"Specication").

4. Expansion valve

3. Condenser

2. Compressor

1. Evaporator

By choosing a heat pump heating system, you are helping to protect the environment

throughlowemissionsandefcientuseofprimaryenergy.Toensurethatyournew

heatingsystemoperatesatmaximumefciency,pleasebearinmindthefollowingpoints:

The heat pump heating system must be carefully sized and installed. Avoid

unnecessarily high ow temperatures. The lower the ow temperature on the

heatingwaterside,themoreefcientlytheheatpumpoperates.Ensurethatthe

controller is adjusted correctly.

Intermittent ventilation is preferable. Compared to airing with the windows

permanently tilted open, this method of ventilation reduces energy consumption

and saves you money.

Please note

Energy-efcientuseofthe

heat pump heating system

Frost protection

The heat pump is automatically protected against frost when it is switched on. The

use of anti-freeze is not permissible.

Risk of water damage and faulty operation through freezing.

Please note

Indoor module

Outdoor module

Air

Cylinder

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3. Information on the heat pump

The appliance is equipped with sensors that monitor the heating circuit and the refrigerant

circuit.

Other equipment features

Wolf heat pumps require special DHW cylinders for heating the domestic hot water;

these are available from the Wolf range of accessories.

The indirect coil surface area in the DHW cylinders must be at least 0.25 m² per kW

of heating output.

Please note

DHW cylinders

Do not use (for cleaning, polishing, etc.) or store sprays, solvents, chlorinated

cleaning agents, paints, lacquers, adhesives, salts, etc. on or in the vicinity of the

heat pump.

Under unfavourable conditions, these materials may cause corrosion in the heat

pump and other heating system components.

Onlycleanthecasingwithadampclothandamildchlorine-freedetergent.Tonish,

dry off immediately.

Corrosion protection

Water hardness

The adjustable cylinder water temperature can exceed 60 °C. Short-term operation

at temperatures above 60 °C must be monitored in order to prevent scalding. For

permanent operation, appropriate precautions should be taken to prevent draw-off

temperatures above 60 °C, e.g. thermostatic valve.

To protect against scaling, the DHW temperature must be set to max. 50 °C when

the total water hardness is 15 °dH (2.5 mol/m³) or above. If the total hardness is

16.8 °dH or above, we recommend using a water treatment facility in the cold water

supply line when heating DHW, in order to prolong the maintenance interval. Even if

water hardness is less than 16.8 °dH, an increased risk of scaling may occur in some

areas, necessitating suitable softening measures. Failure to take such measures will

result in premature scaling of the appliance and reduced DHW convenience. The

contractor should always check the local conditions.

Water treatment

VDI 2035 Part 1 lists recommendations for the prevention of scaling in heating

systems. Part 2 deals with corrosion on the water side.

When screed drying using the heater rod, particular care should be taken to ensure

that the permissible total hardness is complied with, otherwise there is a risk of

scaling and heater rod failure.

The permissible water hardness is 16.8°dH for system volumes of up to 250 litres

during operation with the electric heating rod.

Please note

In the case of high-volume systems or those where large top-up water volumes

(e.g. due to water losses) are required, the following values should be observed.

If the limit curve is exceeded, an appropriate portion of the system water must be

treated.

Example: Total hardness of the domestic hot water: 16 °dH

System volume: 500 l

i.e. at least 250 l must be treated.

System volume in l

Permissible hardness in °dH

Water treatment

necessary

No water

treatment

necessary

250 l

Operation without immersion heater

Operation with immersion heater

We also recommend a heating water pH value of between 6.5 and 9.0 for mixed

installations comprising various materials.

93064298_201507

Outdoor

module

Standard delivery

4. Standard delivery

Indoor

module

Required accessories

AM display module required, BM-2 programming unit can be used as a remote

control. Dew point monitor for cooling mode only.

f Outdoor module, fully encased in box

f Indoor module, fully encased in box

containing the following:

− Installation and operating instructions including system log book and

maintenance instructions

− Commissioning report with checklist

− Suspension bracket and assembly set for indoor module

− 3x pluggable pipework for appliance connection, Ø 28, with O-rings and clips

− Vent hose for commissioning

− Type plate supplement for the outdoor module

− Union nuts for refrigerant circuit, 2x10 / 2x16

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5. Layout

Layout BWL-1S(B) indoor module

High-efciencyheatingcircuitpump

Heating circuit pressure sensor

Vent

Pressure gauge

Safety valve

Schrader valve

Electric booster heater

(accessory for BWL-1SB)

Boiler water temperature sensor

Control electronics and power

supply connection

Condenser

Heatingcircuitowsensor(HC)

3-way diverter valve, heating / DHW

Refrigerant pressure sensor

Return temperature sensor

Refrigerant line connection

Optional use of AM display module

AWO boiler water temperature

sensor for outdoor module controller

(AWO T_boiler)

Refrigerant temperature (T_condenser)

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Fan

Liquid separator

4-way valve

Electronic expansion valve

Inverter compressor

Layout BWL-1S(B)-10/14 outdoor module

Layout BWL-1S(B)-07 outdoor module

5. Layout

Evaporator

Fan

Liquid separator

4-way valve

Electronic expansion valve

Inverter compressor

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6. Equipment features

BWL-1S(B)

Indoor module

• Demand-controlled electric booster heater

o for 2 / 4 / 6 kW depending on connection – Type BWL-1S

o For covering peak loads

o Adjustable for emergency mode or for screed drying

o Screed drying also possible without outdoor module

• Control electronics with integrated wiring chamber

• Slot for BM-2 programming unit or AM display module

• External control via 0-10V possible

• Slot for LAN / WLAN interface ISM7i

• Thermally insulated condenser made from stainless steel plates

• Variablespeedhigh-efciencypumpfortheheatingcircuit

• 3-way diverter valve for heating/DHW heating,

pressure gauge, safety valve installed

• Pressureandowsensors,plusow/returntemperaturesensors

• Refrigerant lines with insulation, Schrader valve and temperature sensor,

heating circuit connections 28 x 1

• Sound and heat insulated, sealed against formation of condensate

• Components secured in EPP, plug-in system for fast assembly

• "Smart Grid Ready" for integration into smart grids, plus EHPA quality seal

• Heating/DHW temperatures can be increased externally, e.g. by smart grid

or PV system

Outdoor module

• Version with one EC axial fan for BWL-1S(B)-07

• Version with 2 EC axial fans for BWL-1S(B)-10 and BWL-1S(B)-14

o Variable speed control, energy saving, powerful

• Evaporator with protective coating for long service life

• Sound-insulated compressor

• Inverter compressor for modulating electronic output control

• 4-way diverter valve for heating and cooling modes combined with

energy-efcientelectronicexpansionvalve

• Flared connections for refrigerant lines

• Refrigerant charge (R410A) for single line lengths up to 12 m

(max. 25 m possible)

• Flexiblesitingusingoororwallmountingsupports

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7. Dimensions BWL-1S(B)

Indoor module

373

440

344

790

118

695

157

214

258

97 75

170

167

132

100

143

Return, heating / DHW 28x1

Liquid line 5/8" UNF

Hot gas line 7/8" UNF

Flow, heating 28x1

Hose, safety valve DN 25

Flow, DHW 28x1

Electrical connection

14 3064298_201507

7. Dimensions BWL-1S(B)

BWL-1S(B)-07 outdoor module

1040

340

527

378

260

865

253

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7. Dimensions BWL-1S(B)

BWL-1S(B)-10 and BWL-1S(B)-14 outdoor module

900

340

705

357

1255

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Split air/water heat pump for

outdoor installation

Installation information:

When selecting the installation site, observe the following points:

- The heat

pump must be accessible on all sides. The air intake should preferably be

on a wall.

- The air discharge side must be free from obstruction. Since the air being

discharged is around 8 K below than the ambient temperature, premature ice

formation should be expected. Therefore do not discharge the air directly onto

walls, patios or footpaths. There should be at least 3 m clearance between the heat

pump discharge and walls, patios, footpaths, etc.

- Topreventairshortcircuitsandsoundreection,avoidinstallinginrecessesor

between two walls.

- Installation in a depression is not permitted as the cold air will sink and no air

exchange will take place.

- To avoid causing disturbance, bear in mind the sound levels and distance from

neighbouring properties when selecting a site.

- Bear in mind the prevailing wind direction / prevent air short circuits

- The condensate should drain away into the gravel bed.

- Protect air intake/discharge from leaves and snow.

- Provide thermal insulation for underground pipes.

Do not site the air source heat pump for outdoor installation in an environment that is

polluted with corrosive gases, such as acids, or alkaline gases.

Do not install in a location directly exposed to onshore winds, as this will result in a

riskofcorrosionfromthesalineair,particularlyontheevaporatorns.Inlocations

with strong winds it may be necessary to construct wind protection to divert the

onshore wind.

Strong winds may interfere with evaporator ventilation.

In areas with high snowfall or in very cold places, protective measures must be taken

to ensure that the heat pump operates correctly. Incorporate the outdoor unit into the

lightning protection system.

Do not install the heat pump with the discharge side facing the prevailing wind

direction.

When siting the heat pump in occupied / communal areas, as opposed to a separate

plant room, the minimum room volume in relation to the refrigerant charge weight

must be complied with. In accordance with EN 378-1, the following limit applies to

R410A refrigerant: 0.44 kg/m³ refrigerant per cubic metre room volume.

For refrigerant lines less than 12 m, the refrigerant charge weight provided is

sufcient.Forrefrigerantlinesbetween12mandamaximumof25mlong,an

additional 0.06 kg/m of R 410A needs to be added; consequently, a larger room

volume is required for the indoor module (see table).

Minimum room volume

Type

Refrigerant line < 12 m Refrigerant line 12 m - 25 m

Charge weight Room volume Charge weight

up to

Room volume

BWL-1S(B)-07 2.15 kg > 4.9 m³ 2.93 kg > 6.7 m³

BWL-1S(B)-10 2.95 kg > 6.7 m³ 3.73 kg > 8.5 m³

BWL-1S(B)-14 2.95 kg > 6.7 m³ 3.73 kg > 8.5 m³

8. Siting the BWL-1S(B)

173064298_201507

Only transport the heat pump by pallet truck while packaged.

Caution, risk of tipping.

To prevent damage to the appliance, the heat pump's outdoor module

must not be tilted more than 45° during transport.

The components, in particular the plastic casings and the pipework for

the refrigerant circuit and heating side, must not be used to transport

the appliance. Only use the grab handles provided when transporting

the heat pump.

Bear in mind the weight of the heat pump.

Transport to the installation site

To prevent damage during transport, the heat pump must remain packaged and on its

woodenpalletwhilebeingtransportedtothenalinstallationsitebypallettruck.

Observe the "Instructions" on the packaging.

Please note

8. Siting the BWL-1S(B)

18 3064298_201507

9. Siting the outdoor module

Air discharge

a≥1000toobstaclesobstructingtheairdischarge

a≥3000tofootpathsandpatiosduetotheformationofice,evenwhenoutsidetemperaturesareabove0°C

Clearance between outdoor module and ground

In areas with heavy snowfall, the minimum installation height must be increased or a canopy must be constructed

over the outdoor module.

Minimum clearances for the outdoor module

≥600

≥300

≥600

≥300

Air discharge

Air intake

≥300

≥300≥100

Air discharge

Air intake

≥220

≥300≥100

Fig.: Front view of outdoor module BWL-1S(B)-10/14 Fig.: Front view of outdoor module BWL-1S(B)-07

Fig.: Plan view of outdoor module BWL-1S(B)-10/14 Fig.: Plan view of outdoor module BWL-1S(B)-07

193064298_201507

10. Siting the indoor module

Minimum clearances for the indoor module

Securing the appliance with the suspension bracket

Wheninstallingtheappliance,ensurethatthexingshavesufcientload-bearingcapacity.Inaddition,takeinto

accounttheconditionofthewall,otherwiserefrigerantandwatercouldescape,resultinginariskofooding.

1. Mark the Ø12 holes to be drilled for the suspension bracket, taking into account the minimum clearances.

2. Inserttherawlplugsandtthesuspensionbracketusingtheboltssupplied.

3. Hang the indoor module into the suspension bracket using the mounting stay.

≥800

≥40

≥1000

≥150

Fig.: Front view of indoor module

Fig.: Plan view of indoor module

344

Fig.: Rear view of indoor moduleFig.: Suspension bracket

≥245

Ceiling

Mounting stay

20 3064298_201507

11. Gravel bed and foundation

diagram for the outdoor module

Baseforoorstandinginstallation

A Gravel bed as condensate soakaway

B Frost-protection base for foundation (compressed gravel, e.g. 0 – 32/56 mm),

layer thickness in accordance with local conditions and applicable building regulations

C Foundation strip

D KG pipe DN 100 with 2 pipe bends 45° (instead of 1x 90°), for refrigerant lines and electrical cables to

the indoor module, pipe requires sealing on-site (only required if routing the lines below ground level)

E Ground

F Footpath or similar

G Externalwall(naldimensions)

> 650

> 1000

> 200> 200

160

BWL-1S-07 (527)

BWL-1S-10/14 (705)

X Y

BWL-1S(B)-07 220 mm 75 mm

BWL-1S(B)-10/14 300 mm 155 mm

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Wolf BWL-1 S Installation And Operating Instructions Manual

Brand: Wolf

Model: BWL-1 S

Category: Heat pumps

Type: Installation And Operating Instructions Manual

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Wolf BWL-1 S Installation And Operating Instructions Manual

Wolf BWL-1 S Installation And Operating Instructions Manual

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