CLIMAVENETA BWR 0101 MTD Installation and User Manual

Brand: CLIMAVENETA

Model: BWR 0101 MTD

Category: Heat pumps

Type: Installation and User Manual

INSTALLATION - USER - MAINTENANCE MANUAL

Reverse-cycle water/water or ground

source heat pumps with domestic hot

water production up to 55°C

WWR MTD - MTD/s

BWR MTD - MTD/s

0011÷0121

2WWR MTD - BWR MTD GB 03/2010

User

Installer

Assistance

Important

Prohibition

Danger voltage

Danger high temperatures

The manufacturer reserves the right to modify the data in this manual without warning.

Eurovent certification program.

The following symbols are used in this publication and inside the unit:

General warnings 3

Waiver of liability 3

Fundamental safety rules 3

Receiving and handling the product 4

Description of the unit 5

Dimensional drawings 6

Installation 7

Water connections 7

Water circuit data 10

Operating diagrams 12

Electrical connections 14

Mains power supply connections 16

Installer connections

Operating characteristics 19

General technical data 27

Sound pressure 31

Operating limits 33

Checking and starting up the unit 34

HSW12 functions 35

LEDs and display 36

Displaying alarms 48

Peak limiter alarm signals 50

Shutting down for long periods 50

Routine maintenance 50

Special maintenance 51

Troubleshooting 52

Useful information 53

U I A

IU A

U I A

UIA

I A

UIA

I A

INDEX

GB 03/2010 WWR MTD - BWR MTD

GENERAL WARNINGS U I A

FUNDAMENTAL SAFETY RULES U I A

WAIVER OF LIABILITY U I A

These appliances have been designed to chill and/or

heat water and must be used in applications compatible

with their performance characteristics; these appliances

are designed for residential or similar applications.

Incorrect installation, regulation and maintenance or

improper use absolve the manufacturer from all liability,

whether contractual or otherwise, for damage to people,

animals or things.

Only those applications specifically indicated in this list

are permitted.

Read this manual carefully. All work must be carried out

by qualified personnel in conformity with legislation in force

in the country concerned.

The warranty is void if the above instructions are not

respected and if the unit is started up for the first time with-

out the presence of personnel authorised by the Company

(where specified in the supply contract) who should draw up

a “start-up” report.

The documents supplied with the unit must be consigned

to the owner who should keep them carefully for future con-

sultation in the event of maintenance or service.

All repair or maintenance work must be carried out by the

Company’s Technical Service or qualified personnel follow-

ing the instructions in this manual.

The air-conditioner must under no circumstances be modi-

fied or tampered with as this may create situations of dan-

ger. Failure to observe this condition absolves the manufac-

turer of all liability for resulting damage.

When operating equipment involving the use of electricity and water, a number of fundamental safety rules must be observed,

namely:

This publication is the sole property of Climaveneta. Any

reproduction or disclosure of such is strictly prohibited with-

out the written authorisation of Climaveneta.

This document has been prepared with maximum care and

attention paid to the content shown. Nonetheless, Cli-

maveneta waives all liability deriving from the use of such

document.

Read this document carefully.

All work must be performed, components selected and

materials used in complete accordance with the legislation

in force in material in the country concerned, and consider-

ing the operating conditions and intended uses of the sys-

tem, by qualified personnel.

The unit must not be used by children or by unfit per-

sons without suitable supervision.

Do not touch the unit with bare feet or with wet or

damp parts of the body.

Never perform any cleaning operations before having

disconnected the unit from the mains power supply.

Do not modify safety or control devices without authori-

sation and instructions from the manufacturer.

Do not pull, detach or twist the electrical cables coming

from the unit, even when disconnected from the mains

electricity supply.

Do not open doors or panels providing access to the

internal parts of the unit without first switching the unit

OFF.

Do not stand or sit on the unit and/or rest objects of any

kind on top of it.

Do not spray or throw water directly on the appliance.

Do not dispose of, abandon or leave within reach of

children packaging materials (cardboard, staples, plastic

bags, etc) as they may represent a hazard.

Respect safety distances between the unit and other

equipment or structures. Guarantee adequate space for

access to the unit for maintenance and/or service opera-

tions.

Power supply: the cross section of the electrical cables

must be adequate for the power of the unit and the pow-

er supply voltage must correspond with the value indicat-

ed on the respective units. All units must be earthed in

conformity with legislation in force in the country con-

cerned.

Water connections should be carried out as indicated in

the instructions to guarantee correct operation of the

unit.

Add glycol to the water circuit if the unit is not used dur-

ing the winter or the circuit is not emptied.

The ground source circuit must contain a water-gly-

col mixture with a minimum of 20% and a maximum

of 40% ethylene glycol.

Handle the unit with the utmost care (see weight distrib-

ution table) to avoid damage..

4WWR MTD - BWR MTD GB 03/2010

When the items are consigned by the carrier, check that the

packaging and the unit are undamaged.

If damage or missing components are noted, indicate this on

the delivery note. A formal complaint should be sent via fax

or registered post to the After Sales Department within eight

days from the date of receipt of the items.

The units are delivered in a single pack on a wooden pallet

protected by plastic packaging.

The unit is supplied accompanied by the following material:

- instruction manual;

- guarantee certificate;

- CE declaration;

- list of the main components and sub-assemblies fitted on

the product, all enclosed in a plastic envelope attached to

the top of the unit.

- Vibration dampers fitted on all models, placed in a plastic

bag inside the unit;

- After removing the packaging, the unit must be handled by

qualified personnel only using equipment appropriate for

the weight of the unit, in compliance with the safety stan-

dards in force and subsequent amendments.

The instruction manual is an integral part of the unit

and should therefore be read and kept carefully..

The packaging should not be removed until the unit is

located in the installation site.

During transport, the unit should be kept in a vertical

position.

Do not dispose of packaging materials in the environ-

ment or leave them within reach of children as they may

represent a hazard

The unit must be stored sheltered from direct sunlight, rain,

wind or sand.

Avoid exposing the unit to direct sunlight, as the pressure

inside the refrigerant circuit may reach dangerous values

and cause the activation of the safety valves, where fitted.

Check the instructions on the packaging for stacking units.

The packaging must be removed by the operator using suit-

able protective equipment (gloves, glasses, etc.). Take spe-

cial care not to damage the unit.

Observe the local standards in force as regards disposal of

the packaging, using specialist collection or recycling cen-

tres.

RECEIVING AND HANDLING THE PRODUCT I A

Dimensions WWR-BWR 0011 0021 0025 0031 0041 0051 0061 0071 0091 0101 0121

L mm 750 750 750 750 750 750 750 880 880 880 880

P mm 700 700 700 700 700 700 700 900 900 900 900

H mm 1100 1100 1100 1100 1100 1100 1100 1205 1205 1205 1205

Gross weight kg 158 158 160 165 180 190 195 240 245 250 270

GB 03/2010 WWR MTD - BWR MTD

DESCRIPTION OF THE UNIT I A

1 Electrical panel

2 4-way reversing valve

3 Scroll compressor

4 Low pressure switch

5 High pressure switch

6 Heat exchanger, source

7 Heat exchanger, system

8 Liquid indicator

9 Thermostatic valve

10 Filter

11 Expansion vessel

12 System pump

13 Source pump (BWR version)

modulating valve (WWR version)

The reverse-cycle water-water units for groundwater and

brine-water units for geothermal loops operate with R410A

refrigerant fluid and are suitable for indoor installation.

They are factory tested and on site installation is limited to

water and electrical connections.

The units are CE marked, as established by the EU direc-

tives, including the latest amendments, and the correspond-

ing approximated national legislation.

VERSIONS AVAILABLE

WWR MTD

Reverse-cycle water/water heat pump with domestic hot water production.

Built-in water pump assembly for the system and two-way modulating valve for the source.

WWR MTD/s

Reverse-cycle water/water heat pump with domestic hot water production.

Built-in water pump assembly for the system and two-way modulating valve for the source.

Peak limiter for single-phase models.

BWR MTD

Reverse-cycle ground source heat pump with domestic hot water production.

Built-in water pump assembly for the system and source.

BWR MTD/s

Reverse-cycle ground source heat pump with domestic hot water production.

Built-in water pump assembly for the system and source.

Peak limiter for single-phase models.

DIMENSIONAL DRAWINGS I

6WWR MTD - BWR MTD GB 03/2010

Electrical connection input

Source water outlet

Source water inlet

System water inlet

System water outlet

Safety valve discharge

Rating plate

Electrical connection input

Source water outlet

Source water inlet

System water inlet

System water outlet

Safety valve discharge

Rating plate

VERSION 0011-0031

male fittings G3/4

VERSION 0071-0121

male fittings G1-1/4

VERSION 0071-0121

male fittings G1-1/4

VERSION 0041-0061

male fittings G1-1/4

positions the same for 0011-0031

0041-0061

0071-0121

DISTANCE BETWEEN SUPPORT FEET

975.2 (0011÷0061) 1102 (0071÷0121)

600 600

11 11

700

500

561.4

547

32.5

600

CLEARANCE

680

Dimension 0011 0021 0025 0031 0041 0051 0061 0071 0091 0101 0121

Water connections IN/OUT 3/4” 3/4” 3/4” 3/4” 1”1/4 1”1/4 1”1/4 1”1/4 1”1/4 1”1/4 1”1/4

Weight distribution BWR-WWR MTD

0011 0021 0025 0031 0041 0051 0061 0071 0091 0101 0121

W1 rear R 29 29 30 31 34 35 36 46 47 48 52

W2 rear L 36 36 37 39 45 47 49 60 61 62 68

W3 front L 38 38 38 39 42 44 45 55 56 58 62

W4 front R 45 45 45 46 49 54 55 69 71 72 78

total in operation 148 148 150 155 170 180 185 230 235 240 260

total for transport 158 158 160 165 180 190 195 240 245 250 270

GB 03/2010 WWR MTD - BWR MTD

INSTALLATION U I A

CHOICE OF INSTALLATION SITE

Before installing the unit, agree with the customer the site

where it will be installed, taking the following points into consid-

eration:

- check that the support surface is adequate to support the

weight of the unit;

- respect safety distances between the unit and other equip-

ment or structures.

- The unit must be installed in a space designed to house tech-

nical installations dimensioned according to legislation in

force in the country concerned and large enough to allow

access for maintenance.

- Follow the instructions shown in the chapter on DIMENSION-

AL DRAWINGS to allow room for maintenance operations.

If installing multiple units the clearances must be doubled.

POSITIONING

Before handling the unit, check the capacity of the lift equip-

ment used, respecting the instructions on the packaging.

To move the unit horizontally, make appropriate use of a lift

truck or similar, bearing in mind the weight distribution of the

unit.

To lift the unit, insert tubes long enough to allow positioning of

the lifting slings and safety pins in the special holes in the base

of the unit.

To avoid the slings damaging the unit, place protection between

the slings and the unit.

The unit should be installed on special vibration dampers.

See the chapter on DIMENSIONAL DRAWINGS for the support

positions identified by W1, W2 etc. and the corresponding

weights for the correct sizing of the vibration dampers.

Fix the unit, making sure it is level and that there is easy

access to water and electrical components.

WATER CONNECTIONS I A

The choice and installation of components is the responsibil-

ity of the installer who should follow good working practice

and current legislation.

Construction of a bypass is recommended to enable the

pipes to be washed through without having to disconnect

the unit (see drain valves).

The connection piping should be supported in such a way

as to avoid it weighing on the unit.

The following components should be installed in the evapo-

rator water circuit:

1. Two pressure gauges with a suitable scale (intake and

outlet);

2. Two vibration damper joints (intake and outlet).

3. Two shut off valves (normal in intake and calibrating in

outlet).

4. Two flow switches (inlet) on both circuits, in the sys-

tem and source sections. Both flow switches must

be calibrated by the installer to a value equal to 70%

of rated flow (obligatory).

5. Two thermometers (intake and outlet).

6. An intake filter must be installed as close as possi-

ble to the evaporator and positioned to allow easy

access for routine maintenance.

7. All the pipes must be insulated with suitable material to

prevent the formation of condensate and heat loss.

The insulating material must be a vapour barrier.

Make sure that the control and shut off devices protrude

from the insulation.

8. At the lowest points in the system, install drain valves for

easy emptying.

9. At the highest points in the system, install automatic or

manual air vent valves.

10. The unit is fitted as standard with an expansion vessel;

make sure this is correctly sized for the water content of

the system and the expected operating temperature, oth-

erwise install an additional expansion vessel.

Failure to install the flow switches will mean the heat

exchangers are not protected in the event of no flow of liq-

uid.

Climaveneta cannot be held liable for any damage to the

unit and/or the system following the failure to install these

devices or the filter.

The correct operation of the components that help ensure

the safety of the appliance and the system should be

checked regularly.

Specifically, this involves cleaning the filters and checking

the operation of the flow switches installed.

Make sure that the frost protection heaters on the heat

exchanger are powered when the unit is off (unit in standby

“StbY”).

Water flow to the chiller unit must conform to the values

shown in the section on “General Technical Data”.

The flow of water must be maintained constant during oper-

ation.

The water content of the unit must be such as to avoid dis-

turbing operation of the refrigerant circuits.

Install any pressure regulating valves or solenoid valves on

the external water outlet piping

If the unit is used with water temperatures below +4.5°C, the

risk of the unit freezing must be prevented by using the

required percentage of antifreeze (see “Water circuit data”).

Non-freezing solutions must also be used at ambient tem-

peratures around 0°C.

It is recommended to use non-toxic food grade antifreeze,

compliant with the standards in force in the countries where

the unit is used, if domestic hot water production is also fea-

tured.

8WWR MTD - BWR MTD GB 03/2010

UTILITY RETURN

UTILITY OUTLET

Factory connections Installer connections

Utility water circuit connection diagram (WWR - BWR)

1 Pressure gauge

2 Vibration damper joint

3 Shut off valve

4 Calibrating valve

5 Flow switch

6 Thermometer

7 Pump

8 Safety valve

9 Expansion vessel

10 Wire mesh filter

11 Fill / top-up

12 Temperature sensor

13 Differential pressure switch

14 Drain / chemical washing valve

15 Unit drain valve

16 System vent

WELL WATER

INLET

WELL WATER

OUTLET

Factory connections Installer connections

Heat exchange circuit water connection diagram (WWR)

1 Pressure gauge

2 Vibration damper joint

3 Shut off valve

4 Flow switch

5 Thermometer

6 Pump

7 Flow regulation valve

8 Wire mesh filter

9 Fill / top-up

10 Temperature sensor

11 Differential pressure switch

12 Drain / chemical washing valve

13 Unit drain valve

14 System vent

GB 03/2010 WWR MTD - BWR MTD

The units must be fitted with a filling/top-up system con-

nected to the return line and a drain valve in the lowest

part of the system.

Systems containing antifreeze or covered by specific

legislation must be fitted with low-loss headers.

The manufacturer is not liable for obstruction, breakage

or noise resulting from the failure to install filters or

vibration dampers.

Particular types of water used for filling or topping up

must be treated with appropriate treatment systems.

For reference values, see the table.

PH 6-8

Electrical conductivity less than 200 mV/cm (25°C)

Chlorine ions less than 50 ppm

Sulphuric acid ions less than 50 ppm

Total iron less than 0,3 ppm

Alkalinity M less than 50 ppm

Total hardness less than 50 ppm

Sulphur ions none

Ammonia ions none

Silicon ions less than 30 ppm

Heat exchange circuit water connection diagram (BWR)

GROUND SOURCE

LOOP RETURN

GROUND SOURCE

LOOP OUTLET

Factory connections Installer connections

1 Pressure gauge

2 Vibration damper joint

3 Shut off valve

4 Calibrating valve

5 Flow switch

6 Thermometer

7 Pump

8 Safety valve

9 Expansion vessel

10 Wire mesh filter

11 Fill / top-up

12 Temperature sensor

13 Differential pressure switch

14 Drain / chemical washing valve

15 Unit drain valve

16 System vent

FILLING THE SYSTEM

- Before starting to fill, place the unit

mains switch QF1 in the OFF position

- Check that the system drain valve is closed.

- Open all system and terminal air vents

- Open system shut off valves

- Start filling by slowly opening the system water fill valve

outside the unit

- When water begins to leak out of the terminal air vent

valves, close them and continue filling until the pressure

gauge indicates the rated pressure.

The system must be filled to a pressure of between 1 and

2 bars.

Check the tightness of the joints.

It is recommended that this operation be repeated after

the unit has been operating for a number of hours.

The pressure in the system should be checked regularly.

Top-up with the unit off (pump off).

TO MAKE THE CONNECTIONS

Remove the plastic caps protecting the water connections.

Connect the system following the diagram. To seal the threads, it is recommended to use hemp and joining paste.

Teflon should not be used with antifreeze fluid. Before connecting the pipes, make sure they do not contain stones, sand, rust,

dross or other foreign bodies which might damage the unit.

OFF

10 WWR MTD - BWR MTD GB 03/2010

EMPTYING THE SYSTEM

- Before starting to empty, place switch

QF1 in the OFF position

- Make sure the system fill/top-up water

valve is closed

- Open the drain valve outside the unit and all the installa-

tion and terminal air vent valves.

If the fluid in the circuit contains antifreeze, it should not

be allowed to drain freely, as it is pollutant.

It should be collected for possible reuse.

When draining after heat pump operation, take care as

the water may be hot (up to 50°).

OFF

cPf

cdp

12%

0,985

1,02

1,07

20%

0,98

1,04

1,11

28%

0,974

1,075

1,18

35%

0,97

1,11

1,22

40%

0,965

1,14

1,24

Ethylene glycol solutions

Water and ethylene glycol solutions used as a heat carrier in

the place of water reduce the performance of the unit.

Multiply the performance figures by the values given in the

following table. Add glycol to the water circuit if the unit is

not used during the winter or the circuit is not emptied.

The ground source circuit must contain a water-glycol

mixture with a minimum of 20% and a maximum of 40%

ethylene glycol.

Fouling factors

The performance data given refer to conditions with clean

evaporator plates (fouling factor=1). For different fouling fac-

tors, multiply the figures in the performance tables by the

coefficient given in the following table.

Water content in the system

The water content on the system side must be a minimum of

3.5 litres per kilowatt, or higher.

0 -5 -10 -15 -20 -25

Freezing point (°C)

Percentage of ethylene glycol in weight

cPf: cooling capacity correction factor

cQ: flow rate correction factor

cdp: pressure drop correction factor

f1: capacity correction factor

fk1: compressor power input correction factor

fx1: total power input correction factor

4,4 x 10-5

0,86 x 10-4

1,72 x10-4

0,96

0,93

0,99

0,98

0,99

0,98

Fouling factors

(m2°C/W) f1

Evaporator

fk1 fx1

WATER CIRCUIT DATA I A

Water content in the system

Size 0011 0021 0025 0031 0041 0051 0061 0071 0091 0101 0121

Minimum water content l 27 30 37 44 56 67 80 100 115 130 170

System expansion vessel volume

Size 0011 0021 0025 0031 0041 0051 0061 0071 0091 0101 0121

System expansion vessel volume l 22222228888

System water limit* l 100 100 100 100 100 100 100 400 400 400 400

* For higher values add a suitable expansion vessel for the total water content

GB 03/2010 WWR MTD - BWR MTD

System pump curves for WWR and BWR MTD

0 5 10 15 20 25 30 35 40 45 50 55

0,5 1 1,5 2 2,5 3 3,5 4

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 [m3/h]

[l/s]

[lgpm]

24235

225

216

206

196

186

176

167

157

147

137

127

118

108

0 0,5 1 1,5 2 2,5

H[m]

KPa

3 3,5 4 4,5 5 5,5 [m/s]

Wwr-Bwr MTD

0031-0041-0051-0061

Wwr-Bwr MTD

0011-0021 Wwr-Bwr MTD

0025

Wwr-Bwr MTD

0071-0091

Wwr-Bwr MTD

0101-0121

Heat exchanger pressure drop, system and source

100

0011

0021

0025

0031 0041 0051 0061 0071 0091

0101 0121

110

0123456789101112

Q [m3/h]

[KPa]

Source pump curves for BWR MTD

0 5 10 15 20 25 30 35 40 45 50 55

0,5 1 1,5 2 2,5 3 3,5 4

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 [m3/h]

[l/s]

[lgpm]

Bwr MTD

0031

Bwr MTD

0011-0021-0025

Bwr MTD

0041-0051-0061

Bwr MTD

0071-0091-0101

Bwr MTD

0121

0 0,5 1 1,5 2 2,5

3 3,5 4 4,5 5 5,5 [m/s]

353

343

333

323

314

304

294

284

274

265

255

245

235

225

216

206

196

186

176

167

157

147

137

127

118

108

H[m]

KPa

The curves shown above refer to the flow-rates and heads

of the pumps only.

To calculate the useful values relating to the system or

source, subtract the pressure drop of the heat exchangers,

see the graph "Heat exchanger pressure drop, system and

source"

12 WWR MTD - BWR MTD GB 03/2010

OPERATING DIAGRAMS WWR-BWR MTD I A

13 M

Heat source

circuit

esc set

mode Prg disp

13 3

15 M

Heat source

circuit

esc set

mode Prg disp

The heat pump is connected directly to the central heating circuit (the minimum water

content required must be ensured).

The heat pump can also produce domestic hot water by managing a special 3-way

valve, connected to a hot water storage cylinder.

The heat pump heats the water in the heating system storage cylinder.

The underfloor system is managed by the central heating pump, installed externally

to the storage cylinder, and by the mixer valve (unit 12).

The heat pump can also produce domestic hot water by managing a special 3-way

valve, connected to a hot water storage cylinder.

1 Heat pump WWR/BWR MTD

2 Non-return valve

3 Control valve with dial

4 Shut off valve

5 Expansion vessel (if necessary)

6 Air separator

7 DHW storage

8 Storage temperature sensor BT4

9 Thermostatic valve

10 Flow switch

11 Safety valve

12 Outside air temperature sensor

13 3-way valve, domestic hot water production

14 Wired remote keypad

15 Electric heater

Example water circuit diagram

1 Heat pump WWR/BWR MTD

2 Non-return valve

3 Control valve with dial

4 Shut off valve

5 Expansion vessel (if necessary)

6 Air separator

7 DHW storage

8 Storage temperature sensor BT5

9 Thermostatic valve

10 Flow switch

11 Safety valve

12 Underfloor system control not sup-

plied by Climaveneta.

13 System storage

14 Outside air temperature sensor

15 3-way valve, domestic hot water production

16 Wired remote keypad

17 Electric heater

Example water circuit diagram

GB 03/2010 WWR MTD - BWR MTD

OPERATING DIAGRAMS WWR-BWR MTD I A

3 3

13 M

Heat source

circuit

esc set

mode Prg disp

12 3 3

Heat source

circuit

esc set

mode Prg disp

The heat pump is connected directly to the central heating circuit (the mini-

mum water content required must be ensured).

The heat pump can also produce domestic hot water by managing a special

3-way valve, connected to a hot water storage cylinder.

The heat pump heats the water in the heating system storage cylinder.

The underfloor system is managed by the central heating pump, installed

externally to the storage cylinder, and by the mixer valve (unit 12).

The heat pump can also produce domestic hot water by managing a special

3-way valve, connected to a hot water storage cylinder.

1 Heat pump WWR/BWR MTD

2 Non-return valve

3 Control valve with dial

4 Shut off valve

5 Expansion vessel (if necessary)

6 Air separator

7 DHW storage

8 Storage temperature sensor BT4

9 Thermostatic valve

10 Flow switch

11 Safety valve

12 Outside air temperature sensor

13 3-way valve, domestic hot water produc-

tion

14 Wired remote keypad

15 Electric heater

Example water circuit diagram

1 Heat pump WWR/BWR MTD

2 Non-return valve

3 Control valve with dial

4 Shut off valve

5 Expansion vessel (if necessary)

6 Air separator

7 DHW storage

8 Storage temperature sensor BT5

9 Thermostatic valve

10 Flow switch

11 Safety valve

12 Underfloor system control not sup-

plied by Climaveneta.

13 System storage

14 Outside air temperature sensor

15 Bypass valve

16 3-way valve, domestic hot water production

17 Wired remote keypad

18 Electric heater

Example water circuit diagram

14 WWR MTD - BWR MTD GB 03/2010

ELECTRICAL CONNECTIONS I A

The units leave the factory fully wired. Installation is limited

to connection to the mains electrical supply and connection

of the flow switch and chiller thermal overload switch QF1

(refer to the wiring diagrams).

For all electrical work, refer to the electrical wiring diagrams

in this manual.

It is also recommended to check that:

- The characteristics of the mains electricity supply are ade-

quate for the power ratings indicated in the electrical spec-

ifications below, also bearing in mind the possible use of

other equipment at the same time.

Power to the unit must be turned on only after installa-

tion work (plumbing and electrical) has been completed.

Respect instructions for connecting phase, neutral and

earth conductors.

Voltage must be within a tolerance of ±10% of the rated

power supply voltage for the unit (for three phase units,

the unbalance between the phases must not exceed

3%). If these parameters are not respected, contact the

electricity supply company.

For electrical connections, use double insulation cable

in conformity with legislation in force in the country

where the unit installed..

A thermal overload switch and a lockable mains discon-

nect switch, in compliance with the CEI-EN standards

(contact opening of at least 3mm), with adequate switch-

ing and residual current protection capacity based on the

electrical data table shown below, must be installed as

near as possible to the appliance.

If these devices are not visible from the electrical pan-

el of the unit, they should be lockable.

An efficient earth connection is obligatory.

The manufacturer cannot be held liable for any damage

caused by the failure to correctly earth the unit.

In the case of three phase units, ensure the phases

are connected in the correct sequence.

Do not use water pipes to earth the unit.

Model Power supply

Values at the maximum conditions allowed (full load)

Fuses (5x20T 250V)

Compressors System pump Total

F.L.I. F.L.A. L.R.A. F.L.I. F.L.A. F.L.I. F.L.A. FU1 FU2 FU3 FU4 FU5

(V-Ph-Hz) (kW) (A) (A) (kW) (A) (kW) (A)

WWR 0011 MTD 230~50 3,3 16,0 58 0,2 1,0 3,5 17,0 1A 1A 8A 0,5A 3,15A

WWR 0021 MTD 230~50 3,4 16,0 61 0,2 1,0 3,6 17,0 1A 1A 8A 0,5A 3,15A

WWR 0025 MTD 230~50 3,8 19,0 82 0,2 1,0 4,0 20,0 1A 1A 8A 0,5A 3,15A

WWR 0031 MTD 230~50 4,6 23,0 97 0,4 2,1 5,0 25,1 1A 1A 8A 0,5A 3,15A

WWR 0041 MTD 230~50 4,2 27,0 130 0,4 2,1 4,6 29,1 1A 1A 8A 0,5A 3,15A

WWR 0011 MTD/s 230~50 3,3 16,0 26 0,2 1,0 3,5 17,0 1A 1A 8A 0,5A 3,15A

WWR 0021 MTD/s 230~50 3,4 16,0 27 0,2 1,0 3,6 17,0 1A 1A 8A 0,5A 3,15A

WWR 0025 MTD/s 230~50 3,8 19,0 37 0,2 1,0 4,0 20,0 1A 1A 8A 0,5A 3,15A

WWR 0031 MTD/s 230~50 4,6 23,0 44 0,4 2,1 5,0 25,1 1A 1A 8A 0,5A 3,15A

WWR 0041 MTD/s 230~50 4,2 27,0 59 0,4 2,1 4,6 29,1 1A 1A 8A 0,5A 3,15A

WWR 0021 MTD 400-3N~50 3,0 5,5 32 0,2 0,1 3,2 5,6 1A 1A 8A 0,5A 3,15A

WWR 0025 MTD 400-3N~50 4,2 6,0 35 0,2 0,1 4,4 6,1 1A 1A 8A 0,5A 3,15A

WWR 0031 MTD 400-3N~50 4,0 8,0 48 0,4 2,1 4,4 10,1 1A 1A 8A 0,5A 3,15A

WWR 0041 MTD 400-3N~50 5,2 10,0 64 0,4 2,1 5,6 12,1 1A 1A 8A 0,5A 3,15A

WWR 0051 MTD 400-3N~50 6,4 11,8 64 0,4 2,1 6,8 13,9 1A 1A 8A 0,5A 3,15A

WWR 0061 MTD 400-3N~50 8,2 15,0 75 0,4 2,1 8,6 17,1 1A 1A 8A 0,5A 3,15A

WWR 0071 MTD 400-3N~50 8,3 16,0 95 0,8 4,0 9,1 20,0 1A 1A 8A 0,5A 3,15A

WWR 0091 MTD 400-3N~50 10,7 21,0 111 0,8 4,0 11,5 25,0 1A 1A 8A 0,5A 3,15A

WWR 0101 MTD 400-3N~50 11,2 22,0 118 1,1 5,1 12,3 27,1 1A 1A 8A 0,5A 3,15A

WWR 0121 MTD 400-3N~50 16,1 31,0 140 1,1 5,1 17,2 36,1 1A 1A 8A 0,5A 3,15A

WWR MTD Electrical data at maximum conditions allowed (full load)

F.L.I. Maximum power input

F.L.A. Maximum current input

L.R.A. Start-up current

GB 03/2010 WWR MTD - BWR MTD

Model Power supply

Values at the maximum conditions allowed (full load)

Fuses (5x20T 250V)

Compressors System pump

Source pump

Total

F.L.I. F.L.A. L.R.A. F.L.I. F.L.A. F.L.I. F.L.A. F.L.I. F.L.A. FU1 FU2 FU3 FU4

(V-Ph-Hz) (kW) (A) (A) (kW) (A) (kW) (A) (kW) (A)

BWR 0011 MTD 230~50 3,3 16,0 58 0,2 1,0 0,2 1,0 3,7 18,0 1A 1A 8A 6,3A

BWR 0021 MTD 230~50 3,4 16,0 61 0,2 1,0 0,2 1,0 3,8 18,0 1A 1A 8A 6,3A

BWR 0025 MTD 230~50 3,8 19,0 82 0,2 1,0 0,2 1,0 4,2 21,0 1A 1A 8A 6,3A

BWR 0031 MTD 230~50 4,6 23,0 97 0,4 2,1 0,4 2,1 5,4 27,2 1A 1A 8A 6,3A

BWR 0041 MTD 230~50 4,2 27,0 130 0,4 2,1 0,9 4,0 5,5 33,1 1A 1A 8A 6,3A

BWR 0011 MTD/s 230~50 3,3 16,0 26 0,2 1,0 0,9 4,0 4,4 21,0 1A 1A 8A 6,3A

BWR 0021 MTD/s 230~50 3,4 16,0 27 0,2 1,0 0,2 1,0 3,8 18,0 1A 1A 8A 6,3A

BWR 0025 MTD/s 230~50 3,8 19,0 37 0,2 1,0 0,2 1,0 4,2 21,0 1A 1A 8A 6,3A

BWR 0031 MTD/s 230~50 4,6 23,0 44 0,4 2,1 0,2 1,0 5,2 26,1 1A 1A 8A 6,3A

BWR 0041 MTD/s 230~50 4,2 27,0 59 0,4 2,1 0,4 2,1 5,0 31,2 1A 1A 8A 6,3A

BWR 0021 MTD 400-3N~50 3,0 5,5 32 0,2 1,0 0,2 1,0 3,4 7,5 1A 1A 8A 6,3A

BWR 0025 MTD 400-3N~50 4,2 6,0 35 0,2 1,0 0,2 1,0 4,6 8,0 1A 1A 8A 6,3A

BWR 0031 MTD 400-3N~50 4,0 8,0 48 0,4 2,1 0,4 2,1 4,8 12,2 1A 1A 8A 6,3A

BWR 0041 MTD 400-3N~50 5,2 10,0 64 0,4 2,1 0,9 4,0 6,5 16,1 1A 1A 8A 6,3A

BWR 0051 MTD 400-3N~50 6,4 11,8 64 0,4 2,1 0,9 4,0 7,7 17,9 1A 1A 8A 6,3A

BWR 0061 MTD 400-3N~50 8,2 15,0 75 0,4 2,1 0,9 4,0 9,5 21,1 1A 1A 8A 6,3A

BWR 0071 MTD 400-3N~50 8,3 16,0 95 0,8 4,0 1,1 5,1 10,2 25,1 1A 1A 8A 6,3A

BWR 0091 MTD 400-3N~50 10,7 21,0 111 0,8 4,0 1,1 5,1 12,6 30,1 1A 1A 8A 6,3A

BWR 0101 MTD 400-3N~50 11,2 22,0 118 1,1 5,1 1,1 5,1 13,4 32,2 1A 1A 8A 6,3A

BWR 0121 MTD 400-3N~50 16,1 31,0 140 1,1 5,1 1,5 7,2 18,7 43,3 1A 1A 8A 16A

BWR MTD Electrical data at maximum conditions allowed (full load)

MTD/s unit complete with peak limiter

F.L.I. Maximum power input

F.L.A. Maximum current input

L.R.A. Start-up current

16 WWR MTD - BWR MTD GB 03/2010

To complete the electrical connections:

- Before connecting the unit to the power supply, make sure

that switch QF1 is open, suitably padlocked and marked.

- Open the front panel of the unit, Fig. A.

- Open the electrical panel, as shown in Fig. B.

- Use cable gland A for the main electrical power cable and

cable gland B for other external cables to be connected by

the installer, Fig. C.

Electrical cables must not enter the unit in positions not

specifically described in this manual.

Avoid direct contact with non-insulated copper piping

and the compressor

- Identify the terminals used for electrical connections on

the layout drawing shown in this manual.

For the functional connection of the unit, bring the power

supply cable to the electrical panel inside the unit and con-

nect it to terminals U-N and PE, respecting the (U) phase,

(N) neutral and (PE) earth in the case of single phase

units (230V~50Hz), or U-V-W phases, N neutral and PE

earth in three phase units (400V-3N~ 50 Hz).

- Reposition the inspection panel.

- Check that all the covers removed to make the electrical

connections have been replaced before powering up the

unit.

- Place the main switch QF1 (outside the unit) in the “ON”

position.

- The display shows the water temperature.

MAINS POWER SUPPLY CONNECTIONS I A

GB 03/2010 WWR MTD - BWR MTD

7390011400 REV.0

A2 A4

QS1

QM1

KM1

KA1

KA3

KA4

KA5

TC1

FU1

FU2

SINGLE-PHASE

THREE-PHASE

A2 A4

QS1

QM1

KM1

KA1

KA3

KA4

KA5

TC1

FU1

FU2

KA2

7390011900-7390012300 REV.0

ELECTRICAL PANEL BWR MTD

A1 Radio interference suppresser

A2 Electronic controller

A3 Water pump electronic control board

A4 Well water pump control board

C1 Compressor start capacitor

FU1 Transformer protection fuse

FU2 Auxiliary circuit protection fuse

KA1 High pressure switch relay

KA3 Alarm relay

KA4 Auxiliary heating element relay

KA5 Domestic hot water 3-way valve relay

KM1 Compressor contactor

QM1 Compressor thermal overload switch

QS1 Door lock disconnect switch

TC1 230/24/12 VAC transformer

A1 Radio interference suppresser

A2 Electronic controller

A3 Water pump electronic control board

A4 Well water pump control board

FU1 Transformer protection fuse

FU2 Auxiliary circuit protection fuse

KA1 High pressure switch relay

KA2 Phase sequence control relay

KA3 Alarm relay

KA4 Auxiliary heating element relay

KA5 Domestic hot water 3-way valve relay

KM1 Compressor contactor

QM1 Compressor thermal overload switch

QS1 Door lock disconnect switch

TC1 230/24/12 VAC transformer

7390017200 REV.0

SINGLE-PHASE

ELECTRICAL PANEL BWR MTD/s (with peak limiter)

A1 Radio interference suppresser

A2 Electronic controller

A3 Water pump electronic control board

A4 Control board source pump

A6 Peak limiter

C1 Compressor start capacitor

FU1 Transformer protection fuse

FU2 Auxiliary circuit protection fuse

KA1 High pressure switch relay

KA3 Alarm relay

KA4 Auxiliary heating element relay

KA5 Domestic hot water 3-way valve relay

KA6 Compressor relay

KA7 Compressor relay

KM1 Compressor contactor

QM1 Compressor thermal overload switch

QS1 Door lock disconnect switch

TC1 230/24/12 VAC transformer

18 WWR MTD - BWR MTD GB 03/2010

TC2

QS1

QM1

KM1

KA1

KA3

KA4

KA5

TC1

FU1

FU2

FU4

FU5

7390012600 REV.0

SINGLE-PHASE

THREE-PHASE

7390013200-7390013600 REV.0

A2 A1

TC2

QS1

QM1

KM1

KA1

KA3

KA4

KA5

TC1

FU1

FU2

KA2

FU4

FU5

ELECTRICAL PANEL WWR MTD

A1 Radio interference suppresser

A2 Electronic controller

A3 Water pump electronic control board

C1 Compressor start capacitor

FU1 Transformer protection fuse

FU2 Auxiliary circuit protection fuse

FU4 Transformer protection fuse

FU5 Well water valve protection fuse

KA1 High pressure switch relay

KA3 Alarm relay

KA4 Auxiliary heating element relay

KA5 Domestic hot water 3-way valve relay

KM1 Compressor contactor

QM1 Compressor thermal overload switch

QS1 Door lock disconnect switch

TC1 230/24/12 VAC transformer

TC2 230/24 VAC transformer

A1 Radio interference suppresser

A2 Electronic controller

A3 Water pump electronic control board

FU1 Transformer protection fuse

FU2 Auxiliary circuit protection fuse

FU4 Transformer protection fuse

FU5 Well water valve protection fuse

KA1 High pressure switch relay

KA2 Phase sequence control relay

KA3 Alarm relay

KA4 Auxiliary heating element relay

KA5 Domestic hot water 3-way valve relay

KM1 Compressor contactor

QM1 Compressor thermal overload switch

QS1 Door lock disconnect switch

TC1 230/24/12 VAC transformer

TC2 230/24 VAC transformer

7390017800 REV.0

SINGLE-PHASE

ELECTRICAL PANEL WWR MTD/s (with peak limiter)

A1 Radio interference suppresser

A2 Electronic controller

A3 Water pump electronic control board

A6 Peak limiter

C1 Compressor start capacitor

FU1 Transformer protection fuse

FU2 Auxiliary circuit protection fuse

FU4 Transformer protection fuse

FU5 Well water valve protection fuse

KA1 High pressure switch relay

KA3 Alarm relay

KA4 Auxiliary heating element relay

KA5 Domestic hot water 3-way valve relay

KA6 Compressor relay

KA7 Compressor relay

KM1 Compressor contactor

QM1 Compressor thermal overload switch

QS1 Door lock disconnect switch

TC1 230/24/12 VAC transformer

TC2 230/24 VAC transformer

GB 03/2010 WWR MTD - BWR MTD

All the terminals referred to in the following explanations are

to be found on the terminal board located inside the electrical

panel and called “installer terminals” (see wiring diagram).

REMOTE ON/OFF (SA1)

To use a remote on/off device, connect the contact of the

device to terminals 16 and 17 on the installer terminal board.

Set parameter CL42 = -1.

Remote off corresponds to standby status, with the com-

pressor and pump off, yet all the safety features are active.

REMOTE SUMMER-WINTER SWITCHING (SA2)

To use a remote summer/winter changeover device, connect

the contact of the device to terminals 18 and 19 on the

installer terminal board.

To activate the device, proceed as follows:

- From the HSW12 control panel select parameter CL43

and set it to the value -3 (contact closed = winter, contact

open = summer)

REMOTE CONTROL, DOMESTIC HOT WATER ONLY

To use a remote device to switch from heat pump operation to

domestic hot water only mode (AS), connect the contact from

the device to installer terminals 16 and 17 (contact SA1).

To activate the control, proceed as follows:

On control panel HSW12, select parameter CL42 and set the

value +28 (contact closed = domestic hot water only, contact

open = system heat pump operation, in the mode selected

by remote contact SA2, if there is no DHW request).

Wiring diagram:

REMOTE ALARM (RD1)

For remote display of unit shut-down, an audible or visual

alarm warning device can be connected between terminals

12 and 13. Connect the phase to terminal 13 and the alarm

signal device between terminal 12 and the neutral.

REMOTE KEYPAD KIT (A5)

The remote keypad kit can be used to display all unit func-

tions and access the parameters of the electronic board

from a point located at some distance from the unit itself.

It consists of a remote control module.

To install the kit, proceed as follows:

- disconnect the power supply and then access the inside of

the electrical panel;

- connect the remote control module with 3 wires to termi-

nals 26, 27 and 28 on the installer terminal board:

terminal 26 connected to the GND/black terminal on the

keypad;

terminal 27 connected to the signal/blue terminal on the

keypad;

terminal 28 connected to the +12VDC/red terminal on the

keypad;

- The outside air temperature sensor can be connected to

the terminals on the remote keypad. To enable the outside

air temperature sensor, set parameter CR31=9.

To avoid interference due to magnetic fields, the use of

shielded cable is recommended. The cable should not

be more than 100 m long.

COMPULSORY FLOW SWITCH CONNECTIONS

The system flow switch (F3) must be connected to terminals

20 and 21. The source flow switch (F5) must be connected

to terminals 22 and 23.

COMPRESSOR ON SIGNAL (GN1)

For remote display of the compressor operating status, an

audible or visual alarm warning device can be connected

between terminals 14 and 15. Connect the phase to terminal

15 and the signal device between terminal 14 and the neutral.

DOMESTIC HOT WATER 3-WAY VALVE

To configure a 3-way for the production of domestic hot water

(supplied by Climaveneta), make the following connections:

- terminal 9 on the heat pump connected to the phase L

- terminal 8 on the heat pump connected to the black wire

on the 3-way valve

- brown wire on the 3-way valve connected to Phase L

- blue wire on the 3-way valve connected to Neutral N

- yellow/green wire connected to earth

The valve is also fitted with a limit switch contact. The con-

tact is either closed or open, depending on the position of

the valve.

Limit switch contact (red and green wire):

Closed = Valve open

Open = Valve closed

The 3-way valve for the production of domestic hot water, if

not supplied by Climaveneta, should have the following

characteristics:

- Voltage 230V AC, 50/60 Hz

- Opening and closing time 10s.

- P delta 500 kPa

- Fluid temperature 0°C to 90°C

Use three-way valves with a pressure drop below 20 kPa.

For further details, see the chapter on “Operating character-

istics”.

DOMESTIC HOT WATER STORAGE TEMPERA-

TURE SENSOR (BT4)

The domestic hot water temperature inside the storage

cylinder is measured using sensor BT4, connected to termi-

nals 24 and 25.

AUXILIARY HEATING ELEMENT (KM4)

If an auxiliary heating element is used, heater or boiler, con-

nect the control device or contactor, as shown in the wiring

diagram. For further details, see the chapter on “Operating

characteristics”.

INSTALLER CONNECTIONS I A

Digital input Configuration Function

SA1 CL42= +28 DHW only/priority

Domestic hot water + System

SA2 CL43= +3 COOL/HEAT

SA1 SA1 SA2

16 17 18 19

20 WWR MTD - BWR MTD GB 03/2010

UPE N

123UN 456789

10 11 12 13 14 15 16 17 18 19 20 25 26 27 2821 22 23 24

SA1 SA2 F3 F5 BT4 A4

+to

Gnd

Signal

+12Vdc

GN1RD1KM4YV3

230 VAC 1A max

Blue Black

Brown

Y/G

TERMINAL BLOCK WWR-BWR MTD AND MTD/S SINGLE-PHASE

123

PE VW N

400V - 3N ~ 50Hz

456789

10 11 12 13 14 15 16 17 18 19 20 25 26 27 2821 22 23 24

SA1 SA2 F3 F5 BT4 A4

+to

Gnd

Signal

+12Vdc

GN1RD1KM4YV3

230 VAC 1A max

Blue Black

Brown

Y/G

TERMINAL BLOCK WWR-BWR MTD THREE-PHASE

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CLIMAVENETA BWR 0101 MTD Installation and User Manual

Brand: CLIMAVENETA

Model: BWR 0101 MTD

Category: Heat pumps

Type: Installation and User Manual

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CLIMAVENETA BWR 0101 MTD Installation and User Manual

CLIMAVENETA BWR 0101 MTD Installation and User Manual

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