Tecnoclima BESST Series Manual

TECHNICAL INFORMATION ASSEMBLY, USE AND

MAINTENANCE INSTRUCTIONS

Reversible heat pumps

BESST - BESST/R SERIES

Dear Customer,

We thank you for preferring one of our machines, an innovative, modern and high-quality product which will ensure you

wellness, noiselessness and safety for a long time, especially if you rely on TECHNOCLIMA Technical Support Service

which is specifically instructed and trained to maintain your unit at the maximum efficiency level with lower operating costs

and which has

original spare parts available in case of need.

This instruction manual contains important indications and suggestions which must be followed for a simpler installation and

the best possible use of the unit.

Thank you once again,

Tecnoclima S.p.A

CONFORMITY

Reversible heat pumps:

• Machinery Directive 98/37/CEE;

• Low Voltage Directive 73/23/CEE;

• Pressure Equipment Directive 97/23/EEC. Module A1

• Electromagnetic Compatibility Directive 89/336/EEC.

RANGE

This manual makes reference to the TYPES of module. The following table shows the TYPES and their matching

COMMERCIAL NAMES.

TYPE MODEL CODE

1 BESST 11 3TRITFR006

2 BESST 12 3TRITFR008

3 BESST 21 3TRITFR009

4 BESST 22 3TRITFS015

5 BESST 31 3TRITFS018

6 BESST 32 3TRITFS020

7 BESST 41 3TRITFS027

8 BESST 42 3TRITFS036

9 BESST/R 11 3TRITFL006

10 BESST/R 12 3TRITFL008

11 BESST/R 21 3TRITFL009

12 BESST/R 22 3TRITFM015

13 BESST/R 31 3TRITFM018

14 BESST/R 32 3TRITFM020

15 BESST/R 41 3TRITFM027

16 BESST/R 42 3TRITFM036

WARRANTY

The unit is covered by a SPECIFIC WARRANTY, taking effect from the purchase date which must be proved by the user.

Should he not be able to prove it, the warranty will take effect from the appliance manufacture date. The warranty conditions

are detailed in the WARRANTY CERTIFICATE provided with the equipment.

MAKE SURE this instruction manual IS ALWAYS KEPT TOGETHER WITH THE APPLIANCE, so that the user, installer

and maintenance qualified personnel can refer to it.

If you sell or transfer the appliance to another proprietor or if you move and leave the appliance, make sure that the

instruction manual always accompanies the unit, so that the new proprietor and/or installer can refer to it.

This manual comprises 40 pages.

TABLE OF CONTENTS

GENERAL

CONFORMITY................................................................................................................................................................... 2

RANGE............................................................................................................................................................................... 2

WARRANTY....................................................................................................................................................................... 2

GENERAL DIRECTIONS................................................................................................................................................... 4

FUNDAMENTAL SAFETY RULES..................................................................................................................................... 5

EQUIPMENT DESCRIPTION............................................................................................................................................. 6

TECHNICAL DATA - WEIGHTS......................................................................................................................................... 7

ELECTRIC BOARD AND MULTIFILAR WIRING DIAGRAM.............................................................................................. 9

COOLING CIRCUIT......................................................................................................................................................... 14

ACCESSORIES ............................................................................................................................................................... 15

CONTROL PANEL........................................................................................................................................................... 15

FAULT INDICATIONS...................................................................................................................................................... 17

SYSTEM MANAGER

SWITCHING ON AND OFF.............................................................................................................................................. 17

INACTIVITY FOR A LONG PERIOD INACTIVITY FOR A LONG PERIOD...................................................................... 19

CL CLE CLEANING ......................................................................................................................................................... 19

MAINTENANCE............................................................................................................................................................... 19

USEFUL INFORMATION................................................................................................................................................. 19

INSTALLER

UPON RECEIVING THE PRODUCT ............................................................................................................................... 20

HANDLING AND TRANSPORT....................................................................................................................................... 20

LOCATION....................................................................................................................................................................... 21

HYDRAULIC CONNECTIONS......................................................................................................................................... 22

DIMENSIONS................................................................................................................................................................... 23

ELECTRICAL CONNECTIONS........................................................................................................................................ 25

ENABLING THE “SO” AND “SEI” CONTROLS”............................................................................................................... 29

FILLING AND EMPTYING THE SYSTEM........................................................................................................................ 29

RECOMMENDED WORKING CONDITIONS................................................................................................................... 30

WORKING LIMITS........................................................................................................................................................... 30

PREPARETION

PREPARATION FOR FIRST COMMISSIONING............................................................................................................. 31

FIRST COMMISSIONING................................................................................................................................................ 31

SWITCHING THE EQUIPMENT ON AND OFF ............................................................................................................... 32

DEFROSTING CONTROL ............................................................................................................................................... 35

CHECKS DURING AND AFTER THE FIRST COMMISSIONING.................................................................................... 35

INACTIVITY FOR A LONG PERIOD................................................................................................................................ 35

ORDINARY MAINTENANCE ........................................................................................................................................... 35

EXTRAORDINARY MAINTENANCE ............................................................................................................................... 36

COMPRESSOR ............................................................................................................................................................... 36

CONTROL AND DISPLAY PARAMETERS...................................................................................................................... 36

TROUBLESHOOTING..................................................................................................................................................... 38

Symbols with the following meanings are used in some parts of the manual:

CAUTION = For actions requiring special care and adequate training.

FORBIDDEN = For actions which SHOULD NEVER be done.

IDENTIFICATION

The unit can be identified through:

- - Rating plate

It bears the technical and performance data of the equipment.

Should this plate be damaged or mislaid, ask your local Technical Support Service for a duplicate.

Tampering with the rating plate, removing it or whatever else does not allow a sure identification of the product hinder

any installation or maintenance interventions.

GENERAL DIRECTIONS

After unpacking the appliance, check it for integrity and completeness. Should the content not match your order, please contact the retailer

who sold the equipment.

The equipment must be installed by a qualified company which, at the end of the work, must provide the proprietor with a declaration of

conformity stating that the installation complies with the best practice and the applicable national and local regulations, as well as the

indications of this instruction manual.

These appliances were made for room air heating and/or conditioning and must be destined for this use consistently with their performance

characteristics.

The manufacturer does not assume any contractual or extra-contractual liability for damages caused to people, animals or things by

installation, adjustment and maintenance errors or improper use.

In case of water leakage, turn OFF the main system circuit breaker and close the water taps.

Immediately call the Technical Support Service or professionally qualified personnel and do not personally intervene on the equipment.

The appliance contains refrigerant gas R 410A; act carefully in order not to damage the gas circuit and the finned coil. In case of refrigerant

leakage, turn OFF the main system circuit breaker. Immediately call the Technical Support Service or professionally qualified personnel and

do not personally intervene on the equipment.

The appliances must be exclusively equipped with original accessories. The manufacturer is not responsible for any damages resulting from

the improper use of the appliance and the use of non-original accessories and materials.

The references to laws, regulations, directives and technical standards mentioned in this manual have a mere informational purpose and are

valid at the printing date of the same. The manufacturer cannot be bound towards third parties on account of new regulations or

amendments to those already in force.

The installations to be made (gas piping, electric power supply, etc.) must be adequately fixed and avoid the risk of stumbling.

The manufacturer is responsible for the conformity of his product to the laws, directives and standards which were in force at the time of

marketing.

The knowledge and observance of regulations and standards about the system designing, installation, operation and maintenance are at the

exclusive charge of the designer, installer and user according to their spheres of competence.

The manufacture is not held responsible for the non-observance of the instructions contained in this manual, for the consequences of any

unexpected operation or for any translations from which wrong interpretations may arise.

This appliance must be installed in accordance with the applicable national and local regulations and must be only used in a sufficiently

ventilated environment. Carefully read the instructions before installing and operating this equipment.

Should the unit be connected in parallel to a boiler, close the chiller cocks during the boiler operation.

The temperature of the circulating water inside the chiller should never exceed 60°C.

If you are not going to use the equipment for a long time, please do the following:

– Turn OFF the main system circuit breaker

– Close the water taps

– If there is danger of freezing, make sure an antifreeze liquid has been added to the system, otherwise empty the system.

This instruction manual is an integral part of the appliance, therefore it must be kept with care and ALWAYS accompany the appliance if it is

transferred to another proprietor or user or moved to another system.. Should this manual be damaged or mislaid, ask your local Technical

Support Service for a new copy.

The repair or maintenance work must be carried out by the Technical Support Service or qualified personnel according to the prescriptions of

this manual. Do not alter or tamper with the appliance as this may lead to dangerous situations, and the manufacturer of the appliance will

not be held responsible for any damages caused.

Under adverse visibility conditions, use lighting devices enabling a perfect vision of all parts and components.

The refrigerant fluid contained in the refrigerating circuit is R-410A and it is not classified as dangerous in accordance with directive

1999/45/EC and relevant amendments.

Avoid high steam concentrations which may cause headache, vertigo, somnolence, nausea and other troubles.

In case of skin contact with the liquid, there is a residual risk of freezing through fast evaporation. Seek medical advice.

In case of inhalation, breath fresh air. Administer oxygen if breathing is difficult. Seek medical advice.

In case of eye contact, immediately flush with running water for at least 15 minutes. Seek medical advice.

The refrigerant fluid must be disposed of through authorized waste-disposal companies. In any case, the fluid must be recovered in proper

storage tanks.

FUNDAMENTAL SAFETY RULES

We remind you that the use of products using electric power, gas or gas oil entails the observance of some fundamental safety

rules, like the following:

The use of the appliance by children and unattended disabled people is prohibited.

Do not touch the appliance while barefoot and with wet or humid body parts.

Do not perform any cleaning or maintenance before disconnecting the appliance from the mains (by turning OFF the main system circuit

breaker).

The safety and setting devices should not be altered without the appliance manufacturer’s consent and indications.

Do not pull, tear or twist the electrical cables on the appliance, although this is disconnected from the mains.

Do not insert sharp objects through the air intake and supply grilles.

Do not open the equipment’s internal part access doors without first turning off the main system circuit breaker.

Do not abandon or leave to the children’s reach the packing material (cardboard, iron bands, plastic bags, etc.) as this is a potential source

of danger.

Do not install the appliance in environments with an aggressive atmosphere.

Do not place any objects onto the equipment, nor slide them through the grille.

Do not use any adapters, multiple-outlet sockets or extensions for the electrical connection of the appliance.

Do not distribute this product in different countries, since it must be modified as to technical documentation and layout.

Do not perform any maintenance before disconnecting the appliance from the mains (by turning OFF the main all-pole system circuit

breaker).

EQUIPMENT DESCRIPTION

The units are divided into two families:

–HEAT PUMPS, BESST series: some available with single-

phase power supply, others with three-phase power

supply, capable of producing both hot water for heating

and cold water for cooling household, residential and

industrial environments.

–HEAT PUMPS, BESST/R series: also available with three-

and single-phase power supply, capable of producing both

hot water for heating and cold water for cooling household,

residential and industrial environments and provided with

supplementary electrical resistor for correct operation

even under very critical weather conditions.

They are used in combination with terminal or fan-coil units in small

and medium-large systems.

They are designed for outdoor installation and the used materials

have been selected to meet this special requirement.

They use a scroll-type rotating compressor, mounted on

antivibration supports inside an adequate compartment, and

electronically-controlled variable-speed helical fans, which

ensure particularly noiseless operation. For three-phase

versions, a phase monitor is standard supplied to check the

proper compressor rotation.

The AISI 318 stainless steel plate heat exchanger, on utility end,

is insulated with an anti-condensation coating and complete with

a flow controller.

The units are equipped with various safety devices, such as

pressure-switches, hydrometer, sensors, specific automatic

switches and phase monitor (only for three-phase units). An

electronic, microprocessor-controlled equipment supervises the

operation. They are also provided with an inertial storage tank

which is integrated into the unit as a standard.

1 Electric board

2 Control panel

3 Magnetothermal switch

4 Cycle reversing valve

5 Dehydration filter

6 Flow controller

7 Summer thermostatic valve

8 Winter thermostatic valve

9 Scroll compressor

19 Hydraulic kit

11 Pump

12 Helical fan

13 Electrical resistor (only BESST/R)

TECHNICAL DATA - WEIGHTS

BESST - BESST/R SERIES

Ref. UNI-EN 14511:2004 standard

TIPO

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

Heating capacity (1) kW 6,8 8,3 11,0 15,0 19,9 22,2 28,0 37,2

Power input (1) kW 1,74 2,11 2,81 3,61 4,28 4,83 6,48 8,44

Heating capacity (2) kW 5,9 7,2 9,5 13,0 16,6 18,9 23,8 31,7

Power input (2) kW 1,78 2,20 2,90 3,67 4,33 4,86 6,55 8,52

Heating capacity (3) kW 5,0 6,2 8,0 10,8 13,5 15,4 19,2 25,8

Power input (3) kW 1,79 2,26 2,97 3,73 4,36 4,88 6,66 8,63

Heating capacity (4) kW 6,6 8,1 10,6 14,4 18,4 21,0 26,4 34,8

Power input (4) kW 2,14 2,68 3,50 4,49 5,23 5,96 7,84 10,18

Heating capacity (5) kW 5,6 7,1 9,3 12,6 15,9 18,1 22,6 30,0

Power input (5) kW 2,16 2,77 3,60 4,60 5,26 5,99 8,00 10,33

Cooling capacity (6) kW 7,5 10,3 13,0 17,8 23,6 27,2 33,9 45,1

Power input (6) kW 1,80 2,28 2,93 3,89 4,96 5,67 7,04 9,05

Cooling capacity (7) kW 6,9 9,3 11,8 17,0 21,3 24,6 31,0 40,4

Power input (7) kW 2,00 2,72 3,46 4,56 5,78 6,60 8,13 10,51

Cooling capacity (8) kW 6,0 8,2 10,2 14,1 17,9 21,0 26,9 34,9

Power input (8) kW 1.76 2,34 3,01 3,93 5,03 5,69 7,05 9,19

Cooling capacity (9) kW 5,3 7,1 9,3 13,0 17,0 19,5 24,7 32,2

Power input (9) kW 2,04 2,81 3,58 4,65 5,85 6,66 8,22 10,71

Nominal water flow-rate

(10) m3/h 1,0 1,2 1,6 2,2 2,8 3,2 4,1 5,4

Water fitting diameter -

inches inches 3/4 3/4 1 1 1 1 1-1/4 1-1/4

Tank capacity - liters litres 16 16 36 36 57 57 70 70

Supporting resistor * kW 3,0 3,0 6,0 6,0 8,0 8,0 10,0 10,0

Supply voltage V/50Hz

230

∼

230

∼

230

∼

400 3N

∼

400 3N

∼

400 3N

∼

400 3N

∼

400 3N

∼

Protection degree IP 44 44 44 44 44 44 44 44

Helical fan N° 1 1 2 2 2 2 4 4

Nominal air flow-rate m3/h 3.300 3.250 6.500 6.500 8.000 8.000 14.000 13.600

Sound level (11) dB(A) 58,0 58,0 62,8 62,8 61,5 61,5 63,0 63,0

R410A refrigerant charge kg 1,7 1,9 2,7 3,1 4,9 5,5 8,2 9,6

Loadless weight kg 110 112 164 175 224 230 390 394

(1) outdoor air +7°C, water 35 – 30°C.

(2) outdoor air +0°C, water 35 – 30°C.

(3) outdoor air -7°C, water 35 – 30°C.

(4) outdoor air +7°C, water 45 – 40°C.

(5) outdoor air +0°C, water 45 – 40°C.

(6) outdoor air +30°C, water 18 – 23°C.

(7) outdoor air +35°C, water 18 – 23°C.

(8) outdoor air +30°C, water 7 – 12°C.

(9) outdoor air +35°C, water 7 – 12°C.

(10) ref. outdoor air 0°C, water 35-30°C

(11) Sound level measured under free-field conditions at 1.5 meters from fan front and 1.5 meters from the ground.

(*)only BESST/R version

HYDRAULIC DATA

The following diagram shows the residual lifts with nominal water flow-rate ± 20%.

Do not work outside these curves

WATER FLOW RATE – LIFT DIAGRAM

WATER FLOW RATE m3/h

AVAILABLE LIFT kPa

Type 1-9

Type 2-10

Type 3-11

Type 5-13

e 4-12

Type 6-14

Type 7-15

Type 8-16

ELECTRIC BOARD AND MULTIFILAR WIRING DIAGRAM

The units are provided with an electric board consisting of the following components.

Factory-installed components

CV1

KM1

KM2

Conn.A

Conn.B

SP3

ST1

ST2

ST4

VIC

R1 / R2

(*)

Compressor

Run capacitor

Fan capacitor

Control protection fuse

Pump protection fuse

Resistor protection fuse

Compressor remote switch

Resistor remote switch

Control panel

Input terminal block

Load output terminal block

Circulating pump

Flow controller

Protection thermostat

Auxiliary circuit transformer

Automatic main breaker

Supporting resistor automatic switch

Pressure transducer

Exchanger inlet temperature probe

Exchanger outlet temperature probe

Outdoor air temperature probe

High pressure switch

Low pressure switch

Cycle reversing valve

Plate heat exchanger resistor

Compressor crankcase resistor

Supporting resistor

RP relay / Boiler contact auxiliary relay

Fan

(*) only for BESST/R version

Components to be assembled upon installation

(not supplied with the appliance)

Type 1, 2, 9, 10

SEI

Remote alarm signaling system (12V DC output,

max 20 mA)

External flow switch

Remote SUMMER-WINTER switch

Remote ON-OFF switch

CONN A

230V 50Hz CONN B

AL-12V DC

CONN B

CONN A

CONN C

Factory-installed components

CV1/2

KM1

KM2

KM3

Conn.A

Conn.B

SP3

ST1

ST2

ST4

VIC

R1 / R2

V1/2

(*)

Compressor

Run capacitor

Fan 1/2 capacitor

Control protection fuse

Pump protection fuse

Resistor protection fuse

Compressor remote switch

Resistor remote switch

Pump remote switch

Control panel

Input terminal block

Load output terminal block

Pump/ Circulating pump

Flow controller

Protection thermostat

Auxiliary circuit transformer

Automatic main breaker

Supporting resistor automatic switch

Pressure transducer

Exchanger inlet temperature probe

Exchanger outlet temperature probe

Outdoor air temperature probe

High pressure switch

Low pressure switch

Cycle reversing valve

Plate heat exchanger electrical resistor

Compressor crankcase resistor

Supporting resistor

RP relay / Boiler contact auxiliary relay

Fan 1/2

Only for BESST/R series

Components to be assembled upon installation

(not supplied with the appliance)

Type 3 and 11

SEI

Remote alarm signaling system ((12V DC output,

max 20 mA)

External flow switch

Remote SUMMER-WINTER switch

Remote ON-OFF switch

CONN A

CONN B

CONN A

CONN C

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