montaj ventiloconvectoare climaveneta

OPERATING AND INSTALLATION MANUAL

I - VENTILCONVETTORE CASSETTEGB - FAN COIL CASSETTEFR - VENTILO-CONVECTEURS CASSETTEDE - KASSETTEN-KLIMAKONVEKTORENES - VENTILADORES CONVECTORES CASSETTE

I) Vi preghiamo di leggere con attenzione

il presente manuale prima di mettere in

funzione lapparecchio.

GB) Please read this guide carefully before

switching on the appliance.

FR) Nous vous prions de bien vouloir lire

attentivement ce mode d'emploi avant

de mettre l'appareil en fonction.

DE) Bitte lesen Sie vor der Inbetriebnahme

des Gerts aufmerksam diese

Bedienungsanleitung.

ES) Les rogamos lean con atencin el

presente manual antes de encender el

aparato.

MODELLI MODELSMODLESMODELLEMODELOS

CHD U-2T 506-1209

CHD U-4T 506-1209

2GENERALApplication page 3

General warnings 3

Basic safety rules 4

Operating limits 5

Contents of the supply 5

Receiving and handling the product 5

Project specifications 5

Unit drawings 6

Technical data 7

Drop pressure diagrams 9

INSTALLATIONInstallation 11

Valve unit installation 12

Duct installation 12

Hydraulic connections 14

Condensate drain pipe 14

Auxiliary tray installation 15

Electrical connections 16

USERWall-mounted controls 22

RANGE

CONTENTS

For more information on technical support and spare parts, please contact:

CLIMAVENETA S.p.A. AFTER SALES DEPARTMENT - RESIDENTIAL BUSINESS Via Duca dAosta 121 - 31031 Mignagola di Carbonera (TV) ITALYTel: +39.0424.509500 - Fax: +39.0424.509563www.climaveneta.com - [email protected]

Operation in cooling mode: room temperature 27C d.b./19C w.b., chilled water at inlet 7C and at outlet 12C

USEFUL INFORMATION

The fan coils are appliances intended for high quality civil

use. The elegant aesthetic design, the control electronics

and the top class components facilitate its location and

guarantee optimum conditions of comfort.

CASSETTE Housing: made of self-extinguishing plastic

Electric fan unit: centrifugal fans coupled directly to the 4

speed electric motor.

Exchange coil: consisting of copper pipes with swirl design

and aluminium fins

Air filter

WALL-MOUNTED CONTROLThermostat controls all function of cassette unit. Technical

characteristics of wall-mounted controls are reported in their

instruction sheet..

Pictures of the CHD unit are purely rapresentative and

could be some differences with product received.

DESCRIPTION OF THE APPLIANCE

Model Version Size Cooling capacity (kW)CHD U-2T 506 2,92

CHD U-2T 606 4,49

CHD U-2T 706 5,33

CHD U-2T 809 5,7

CHD U-2T 1109 9,9

CHD U-2T 1209 11,1

Model Version Size Cooling capacity (kW)CHD U-4T 506 2,69

CHD U-4T 606 3,43

CHD U-4T 706 4,01

CHD U-4T 909 6,97

CHD U-4T 1109 8,29

CHD U-4T 1209 9,3

SERVICEMaintenance 32

Operating guide 33

Precautions 33

Troubleshooting 33

Malfunction and corrective actions 34

The following symbols are used in some parts of the booklet:

CAUTION:for actions that require particular caution and adequate

preparation.

FORBIDDEN:for actions that MUST NOT be carried out.

The company reserves the right to change without notice

the following documentation. It is strictly forbidden to copy or

even partial reproduce this manual.

3APPLICATION General

CAREFULLY READ THIS MANUAL BEFORE INSTALLINGTHE APPLIANCEThe Cassette fan coil are designed for use in commercial

and private environments with false ceilings. The Cassette

fan-coil units are exclusively built for air heating, filtering,

cooling and dehumidification. They are not suitable for any

other purpose.

The Cassette fan-coil unit may not be used:

for outdoor air treatment

for installation in moist rooms

for installation in explosive atmospheres

for installation in corrosive atmospheres

Make sure that the environment where the appliance is

installed does not contain substances that cause the cor-

rosion of the aluminium fins.

The appliances are supplied with hot/cold water depending

on whether the environment is being heated/cooled.

The manufacturer/seller cannot be held liable for any loss or

damage caused as a result of incorrect

installation, operation or maintenance of the cassette fan

coil units or due to any non-compliance with this

User Information Manual or any inspection, repair and main-

tenance requirement.

GENERAL WARNINGS General

After having removed the packaging, check that the con-

tents are intact and complete. In the event of non-compli-

ance, contact the Agency which sold you the appliance.

The appliances must be installed by a qualified company

in accordance with the laws and regulations in force in

the country of installation. Upon completion of work this

company should issue the owner the declaration of con-

formity of installation with current regulations and stan-

dards and with the instructions given in this booklet.

These appliances have been designed for cooling or

heating environments and should only be used for this

purpose in compatibility with their performance charac-

teristics.

Under no circumstances can the Company be held liable

under contract or in tort for damage caused to property

or injury to persons or animals due to incorrect installa-

tion, regulation and maintenance or to improper use.

Avoid the room being closed for a long time. Periodically

open the windows to ensure a correct change of air.

Should there be a water leak, put the installation on/off

switch to "off" and turn the water taps off.

Too low a temperature is harmful to health as well as

being a useless waste of energy.

Avoid direct contact with the flow of air.

During storms put the installation on/off switch to off.

This instruction booklet is an integral part of the appli-

ance and should therefore be carefully preserved and

ALWAYS accompany the appliance, also in the event of

transfer to another owner or user or into another installa-

tion. Should the booklet be damaged or lost, request a

copy from the Area Service Centre.

Repair or maintenance work must be carried out by the

After-Sales Service Centre or by qualified personnel in

accordance with instructions given in this booklet. Do not

alter or tamper with the appliance, since hazardous situa-

tions could be created and the manufacturer of the appli-

ance will not be liable for any damage or injury caused.

In the case of Heating installations, the temperature of

the water circulating in the fan coil must not exceed 80

C.

Appliance must to be installed at minimum 2,5 meter

above the ground.

All personnel must have been trained or given appropriate

instructions. Personnel responsibilities must be defined

clearly. All electrical work must be carried out by or under

the supervision of qualified electrical installers. all water-

work must be carried out by qualified installers or by per-

sonnel who have been given appropriate instructions.

Assembly, disassembly, installation, electrical work, com-

missioning, repair and maintenance of the Cassette cof-

fered-ceiling fan-coil unit must be in accordance with all

applicable health and safety laws, rules and regulations,

relevant codes and standards and the latest technology.

They may include rules, regulations, codes and stan-

dards applicable to refrigeration systems, pressure ves-

sels, electrical installations and lifting tackle.

Wiring diagrams in this User Information Manual do not

address protective grounding or other electrical protec-

tion which will be required under local rules, regulations,

codes or standards or by the local electricity supplier.

All repairs or maintenance must be performed by quali-

fied specialists.

The manufacturer declines all responsibility for damage

caused by modifications or tampering with the unit.

Any modification of or addition to the fan-coil unit which

may affect safety including the incorporation and setting

of safety devices and valves requires approval by the

manufacturer.

4BASIC SAFETY RULES General

Using electrically-operated products implies the observance

of certain basic safety rules, such as those given below:

Using electrically-operated products implies the observance

of certain basic safety rules, such as those given below:

Children and unassisted disabled persons must not use

the appliance.

Do not touch the appliance when feet are bare or parts

of the body are wet or damp.

Do not carry out any cleaning until the appliance has

been disconnected from the mains electricity supply by

putting the installation on/off switch to "off".

Do not alter the safety or regulating devices without the

permission and instructions of the manufacturer of the

appliance.

Do not pull, detach or twist the electric cables connected

to the appliance, even if disconnected from the mains

electricity supply.

It is forbidden the use of fan coil by people with physical,

sensory or mental disabilities or lack of experience. They

can use the appliance if they benefit throught the inter-

mediary of a person responsible for their security, the

necessary surveillance or specific instructions regarding

the use of fan coil.

Do not climb onto or place any objects on top of the

appliance.

Do not spray or direct water directly onto the appliance.

Do not insert sharp pointed objects through the air deliv-

ery and intake grilles.

Do not open the flaps to access internal parts of the

appliance unless the installation on/off switch is on off.

Do not leave the packaging material within reach of chil-

dren, but dispose of properly since it is a potential

source of danger.

INSTALLATION: Remove the fan lock before installation. Install a safety

switch to turn off current to the appliance in an easily

accessible position near the unit or units. Make sure the

unit is earthed.

Do not install in explosive, corrosive or damp environ-

ments, outdoors or in very dusty rooms.

The space above the suspended ceiling must be dry and

adequately protected against moisture and the ingress of

humidity.

If the installation is fitted with an external air intake

damper, make sure the coil tubes are not damaged by

temperatures below freezing point.

During installation, for safety reasons, observe the fol-

lowing precautions:

Always use work gloves.

The unit must always be handled by two people.

Fan-coil units should only be carried at suitable points.

When carrying fan-coil units, gloves should be worn for

safety reasons.

Lifting tackle and gear must have sufficient capacity.

Defective lifting gear and tackle must not be used.

Ropes, belts and similar lifting tackle must not be knot-

ted or come into contact with sharp edges.

Fork-lift trucks, elevating-platform trucks and cranes

must have sufficient capacity.

Loads must not be lifted over persons.

Do not remove the safety labels inside the appliance. If

you cannot read the labels, ask for replacements.

Do not throw packaging material away or leave it within

reach of children as it may represent a hazard.

Air intakes and air discharge openings must never be

obstructed or blocked.

MAINTENANCE: Always use original spare parts. Always use work gloves.

Always unplug the unit from the mains power supply

before carrying out any type of operation or maintenance.

Never remove protective elements without first unplugging

the unit from the mains power supply.

Make sure that the fan has stopped.Flow and return

valves and any isolating valves must be closed for repair

and maintenance.

Never tamper with or modify regulation and safety devices

without prior authorisation and instructions.

If pipe connections of the heat exchanger are handled

improperly, hot heating fluid may be discharged and may

cause scalding.

All panels and covers removed for repair or maintenance

work must be fitted back after the completion of work.

OPERATION: Do not expose to infl ammable gas. Never introduce for-

eign objects through the air intake and discharge grills.

It is dangerous to touch the unit with damp parts of the

body and bare feet.

Never twist, detach or pull power cables, even when the

unit is unplugged from the mains power supply.

Never throw or spray water on the unit. Never introduce

objects or the hand into the fans.

In particularly cold climates, if the appliance is not to be

used for long periods, drain the hydraulic circuit.

Waste disposal: Consumables and replaced parts should

be disposed of safely and in accordance with environmen-

tal protection legislation.

5CONTENTS OF THE SUPPLY General

The fan coil comes in a pack protected by a cardboard box

and is accompanied by:

Installation manual

Additional condensate tray

which are enclosed in plastic bags inside the indoor unit

pack.

Air grille is provided in its own packaging

The operating and installation manual are considered

part of the appliance and must therefore be read careful-

ly and kept for reference.

RECEIVING AND HANDLING THE PRODUCT General

The fan coils come in single packs protected by a cardboard

box.

It is advisable to remove the packaging only when the

appliance has been located near the point of installation.

After the packaging has been removed, the fan coil must

be handled manually by suitably equipped, qualified per-

sonnel and in compliance with accidentprevention

norms.

The fan coil must be handled by equipped qualified per-

sonnel using suitable equipment for the weight of the

appliance.

Take care when removing the adhesive strips from the

appliance.

Packaging components must be disposed of correctly

and not left within reach of children since they are a

potential source of danger.

PROJECT SPECIFICATIONS General

PROJECT SPECIFICATIONS CHD U-2TFrame in galvanised steel insulated with self-extinguishing

closed-cell polyethylene blanket of suitable thickness to limit

heat loss and noise to a minimum. Airflow grille in PS. Man-

ual louvers as well independent adjustable for vertical air-

flow direction. All the main parts can be easily accessed

through the grille. Regenerative air filters. Accident-preven-

tion grille over the fan intake.

Coil with corrugated aluminium fins and copper pipes, 100%

tested with dried air at 14 bar. 4-speed electric motor inclu-

sive of thermal switch. Low-rev radial-blade fan to maximise

acoustic comfort. Hydraulic connections. Manual air valve

with outlet connected to the condensate collecting tray.

Plastic condensate collecting tray housing the condensate

drain pump and float. Condensate drain pump with 650 mm

working head and 24 dB(A) noise level. Float for conden-

sate drain pump operation control and to warn of overflow

obstruction. Switchboard with power and control terminal

block with screw terminals.

Set-up for fresh air intake. Set-up for duct air distribution.

Set-up for cladding of air outlets. Ceiling-mounting brackets.

Hydronic cassette universal version connected with wall-

mounted thermostat.

PROJECT SPECIFICATIONS CHD U-4TFrame in galvanised steel insulated with self-extinguishing

closed-cell polyethylene blanket of suitable thickness to limit

heat loss and noise to a minimum. Airflow grille in PS. Man-

ual louvers as well independent adjustable for vertical air-

flow direction. All the main parts can be easily accessed

through the grille. Regenerative air filters. Accident-preven-

tion grille over the fan intake.

Double coil for four pipe installation. Coils with corrugated

aluminium fins and copper pipes, 100% tested with dried air

at 14 bar. 4-speed electric motor inclusive of thermal switch.

Low-rev radial-blade fan to maximise acoustic comfort.

Hydraulic connections. Manual air valve with outlet connect-

ed to the condensate collecting tray. Plastic condensate col-

lecting tray housing the condensate drain pump and float.

Condensate drain pump with 650 mm working head and 24

dB(A) noise level. Float for condensate drain pump opera-

tion control and to warn of overflow obstruction. Switchboard

with power and control terminal block with screw terminals.

Set-up for fresh air intake. Set-up for duct air distribution.

Set-up for cladding of air outlets. Ceiling-mounting brackets.

Hydronic cassette universal version connected with wall-

mounted thermostat.

OPERATING LIMITS General

Cassette fan-coil and heat exchanger:

Maximum temperature of heat vector fluid = 80C

Minimum temperature of refrigerant fluid = 5C

Maximum working pressure = 8 bars

Power supply voltage: 230V - 50Hz

Electric energy consumption: see technical data label

Valves with thermoelectric actuator:

Refer to instruction sheet present inside kit valve-unit.

Other technical data

All other important technical data (dimensions, weights, con-

nections, noise emissions, etc.) are given elsewhere in this

User and Installation manual.

6UNIT DRAWINGS General

CHD U-2T 506-706 CHD U-4T 506-706

CHD U-2T 809-1209 CHD U-4T 809-1209

7TECHNICAL DATA General

Models CHD 506 CHD 606 CHD 706 CHD 809 CHD 1109 CHD 1209Version U-2T U-2T U-2T U-2T U-2T U-2TAir flow rate

Turbo speed m3/h 815 830 1050 1400 1700 1800

Max speed m3/h 590 600 875 1100 1300 1400

Med speed m3/h 450 460 770 920 1100 1200

Min speed m3/h 355 360 570 780 900 980

Total cooling capacity (1)

Turbo speed kW 2,92 4,49 5,33 5,7 10 11,1

Max speed kW 2,45 3,5 4,62 4,96 9,05 9,36

Med speed kW 2,08 2,84 4.17 4,45 8,16 8,24

Min speed kW 1,81 1,69 3,21 4,05 7,17 7,05

Sensible cooling capacity (1)

Turbo speed kW 2,65 3,75 4,56 4,64 8,54 7,87

Max speed kW 2,15 2,9 3,94 3,96 7,47 6,48

Med speed kW 1,86 2,33 3,54 3,5 6,68 5,59

Min speed kW 1,36 1,55 2,74 3,12 5,83 4,69

Max water flow (1) l/h 772 914 977 1905

Max pressure drop (1) kPa 6 11,8 15,1 28 49 48

Heating capacity (2)

Turbo speed kW 4,04 5,98 7,12 6,95 13 12,19

Max speed kW 3,38 4,59 6,15 5,86 11,8 9,95

Med speed kW 2,83 3,67 5,56 5,14 10,3 8,79

Min speed kW 2,43 2,85 4,33 4,54 9,08 7,4

Max water flow (2) l/h 772 914 977 1905

Max pressure drop (2) kPa 5 9,6 12,5 23 43 42


Turbo speed kW n.n. n.n. n.n. n.n. n.n. n.n.

Max speed kW n.n. n.n. n.n. n.n. n.n. n.n.

Med speed kW n.n. n.n. n.n. n.n. n.n. n.n.

Min speed kW n.n. n.n. n.n. n.n. n.n. n.n.

Max water flow (3) l/h n.n. n.n. n.n. n.n. n.n. n.n.

Max pressure drop (3) kPa n.n. n.n. n.n. n.n. n.n. n.n.

Sound power level (4)

Turbo speed dB(A) 57 58 64 61 65 67

Max speed dB(A) 50 52 59 55 61 62

Med speed dB(A) 43 45 57 51 56 57

Min speed dB(A) 38 41 51 48 52 51

Technical characteritics

Water content l 1,04 1,04 1,04 1,65 1,65 2,9

Water inlet fittings inch 3/4 3/4 3/4 1 1 1

Water outlet fittings inch 3/4 3/4 3/4 1 1 1

Max adsorbed power W 106 106 155 149 149 211

Max adsorded current A 0,5 0,5 0,7 0,67 0,67 0,93

Electrical power supply V-Ph~Hz 220-240/1/50 220-240/1/50 220-240/1/50 220-240/1/50 220-240/1/50 220-24/1/50

Indoor unit dimension

High mm 310 310 310 314 314 314

Width mm 570 570 570 843 843 843

Depth mm 570 570 570 843 843 843

Packaging (HWxD) mm 391x686x721 391x686x721 391x686x721 391x911x911 391x911x911 391x911x911

Net Weight kg 22 22 22 26,5 26,5 30

Gross Weight kg 25 25 25 31 31 34,5

Front panel dimension

High mm 40 40 40 55 55 55

Width mm 720 720 720 950 950 950

Depth mm 720 720 720 950 950 950


Net Weight kg 2,5 2,5 2,5 4,0 4,0 4,0

Gross Weight kg 4,5 4,5 4,5 7 7 7

Data reffered to(1) Operation in cooling mode: room temperature 27C d.b./19C w.b., chilled water at inlet 7C and at outlet 12C

(2) Operation in heating mode: room temperature 20C d.b., hot water at inlet 50C, with identical flow rate that in the cooling mode

(3) Operation in heating mode: room temperature 20C d.b., hot water at inlet 70C and at outlet 60C

(4) Sound power on the basis of measurements made in compliance with Eurovent 8/2

n.n. Not necessary

8TECHNICAL DATA General

Data reffered to(1) Operation in cooling mode: room temperature 27C d.b./19C w.b., chilled water at inlet 7C and at outlet 12C

(2) Operation in heating mode: room temperature 20C d.b., hot water at inlet 50C, with identical flow rate that in the cooling mode

(3) Operation in heating mode: room temperature 20C d.b., hot water at inlet 70C and at outlet 60C

(4) Sound power on the basis of measurements made in compliance with Eurovent 8/2

n.n. Not necessary

Models CHD 506 CHD 606 CHD 706 CHD 909 CHD 1109 CHD 1209Versione U-4T U-4T U-4T U-4T U-4T U-4TAir flow rate

Turbo speed m3/h 815 830 1050 1500 1700 1800

Max speed m3/h 590 600 875 1150 1300 1400

Med speed m3/h 450 460 770 970 1100 1200

Min speed m3/h 355 360 570 830 900 980

Total cooling capacity (1)

Turbo speed kW 2,69 3,43 4,01 6.97 8,29 9,3

Max speed kW 2,11 2,75 3,53 6,29 7,43 8,19

Med speed kW 1,4 2,31 3,3 5,69 6,41 7,05

Min speed kW 1,24 1,93 2,71 5,22 5.65 6,02

Sensible cooling capacity (1)

Turbo speed kW 2,29 3,1 3,59 5,33 6,41 7,01

Max speed kW 1,8 2,46 3,15 4,8 5,69 6,09

Med speed kW 1,29 2,21 2,91 4,35 4.83 5,16

Min speed kW 1,11 1,7 2,37 3,98 4,18 4,35

Max water flow (1) l/h 461 688 1196 1420 1596

Max pressure drop (1) kPa 8,5 12 15,5 32 40 50


Turbo speed kW n.n. n.n. n.n. n.n. n.n. n.n.

Max speed kW n.n. n.n. n.n. n.n. n.n. n.n.

Med speed kW n.n. n.n. n.n. n.n. n.n. n.n.

Min speed kW n.n. n.n. n.n. n.n. n.n. n.n.

Max water flow (2) l/h n.n. n.n. n.n. n.n. n.n. n.n.

Max pressure drop (2) kPa n.n. n.n. n.n. n.n. n.n. n.n.


Turbo speed kW 3,69 4,62 5,31 6,52 7,43 8,39

Max speed kW 2,93 3,86 4,65 5,35 6,09 6,91

Med speed kW 2,4 3,33 4,23 4,68 5,36 6,13

Min speed kW 2,01 2,96 3,38 4,15 4,59 5,23

Max water flow (3) l/h 324 465 590 670 740

Max pressure drop (3) kPa 12,9 25 21,1 20 25 30

Sound power level (4)

Turbo speed dB(A) 57 58 62 62 66 67

Max speed dB(A) 49 50 58 56 62 62

Med speed dB(A) 43 44 56 52 56 57

Min speed dB(A) 39 41 50 49 50 51

Technical characteritics

Water content l 1,04 1,04 1,04 2,9 2,9 2,9

Water inlet fittings inch 3/4 , 1/2 3/4 , 1/2 3/4 , 1/2 1 , 3/4 1 , 3/4 1 , 3/4

Water outlet fittings inch 3/4 , 1/2 3/4 , 1/2 3/4 , 1/2 1 , 3/4 1 , 3/4 1 , 3/4

Max adsorbed power W 103 103 155 153 209 211

Max adsorded current A 0,4 0,4 0,7 0,69 0,92 0,93

Electrical power supply V-Ph~Hz 220-240/1/50 220-240/1/50 220-240/1/50 220-240/1/50 220-240/1/50 220-240/1/50

Indoor unit dimension

High mm 310 310 310 314 314 314

Width mm 570 570 570 843 843 843

Depth mm 570 570 570 843 843 843


Net Weight kg 22 22 22 29,5 29,5 30

Gross Weight kg 25 25 25 34 34 34,5

Front panel dimension

High mm 40 40 40 55 55 55

Width mm 720 720 720 950 950 950

Depth mm 720 720 720 950 950 950


Net Weight kg 2,5 2,5 2,5 4,0 4,0 4,0

Gross Weight kg 4,5 4,5 4,5 7 7 7

9DROP PRESSURE AND CORRECTION FACTOR General

Unit pressure drop (2-Pipe)(without valve assembly)


CHD 506 - 706 MODELS (U-2T E U-4T VERSION)

Model Capacity Fan speedTurbo Max Med Min

CHD U-2T 506Total 1 0,759 0,483 0,430

Sensible 1 0,761 0,530 0,456

CHD U-2T 606Total 1 0,779 0,632 0,377

Sensible 1 0,773 0,623 0,414

CHD U-2T 706Total 1 0,868 0,782 0,603

Sensible 1 0,865 0,778 0,600

CHD U-4T 506Total 1 0,785 0,523 0,463

Sensible 1 0,785 0,564 0,487

CHD U-4T 606Total 1 0,821 0,668 0,419

Sensible 1 0,810 0,658 0,451

CHD U-4T 706Total 1 0,882 0,822 0,676

Sensible 1 0,878 0,812 0,661

CHD U-2T 506 - 706

CHD U-4T 506 -706 (HEATING CIRCUIT)

CHD U-4T 506 -706 (COOLING CIRCUIT)

10

DROP PRESSURE AND CORRECTION FACTOR General



CHD 809 - 1209 MODELS (U-2T E U-4T VERSION)

CHD 809

CHD 809

CHD 909 - 1209

CHD 909 - 1209

CHD 809

CHD 909 - 1209

CHD 909 - 1209

CHD 809

Model Capacity Fan speedTurbo Max Med Min

CHD U-2T 809Total 1 0,870 0,782 0,711

Sensible 1 0,853 0,755 0,673

CHD U-2T 1109Total 1 0,854 0,750 0,652

Sensible 1 0,835 0,720 0,614

CHD U-2T 1209Total 1 0,843 0,742 0,635

Sensible 1 0,823 0,710 0,596

CHD U-4T 909Total 1 0,903 0,817 0,749

Sensible 1 0,902 0,817 0,747

CHD U-4T 1109Total 1 0,897 0,774 0,682

Sensible 1 0,888 0,754 0,653

CHD U-4T 1209Total 1 0,881 0,758 0,647

Sensible 1 0,869 0,737 0,621

11

25

0 c

m

INDOOR UNIT INSTALLATION Installation

WHERE TO INSTALL INDOOR UNIT

There should not be any heat source or steam near the

unit. Where there is no obstacle in the air passages in

and out of the unit.

Cassette has to be installed in:

A place where air circulation in the room will be good.

A place where drainage can be easily obtained.

A place where noise prevention is taken into considera-

tion.

Where it is wide enough to leave sufficient space around

the unit for service works.

Consider using an area where installation is easy.

INDOOR UNIT INSTALLATION

Select the location where a space between the air dis-

charge outlets and the wall or any air obstruction objects is

more than 100 cm. as shown in the drawing on the right.

Also ensure that the position does not interfere with light

fittings, sprinkle heads, etc.

Determine the ceiling hole by using the paper pattern.

Mark the position of the hangers on ceiling by using posi-

tion (A, B, C) and (D) in the paper pattern.

Depending on the type of ceiling the hangers can be fixed

as shown in the drawing.

Once the threaded hangers have been positioned, do not

tighten the nuts, and insert the washers as shown in the

drawing.

Carefully lift the unit (without the frame) using the four

suspension brackets (or the four corners), inserting it

into the false ceiling.

Align and level the unit by adjusting the nuts and locknuts

on the threaded hangers, maintaining a distance of 25-30

mm. between the sheet metal body and the underside of

the false ceiling.

In rooms with high humidity, brackets should be insulated

by self adhesive insulation.

Installation of grille/frame assembly

Use the screws supplied to fix the frame in position.

Louvers of cassette air grille could be managed manually by the installer. They could not be controlled by wall mounted ther-

mostat or connected to power supply.

12

For the installation of the valves, follow the instruction of

the producer; to make the connection to the Cassette,

please make reference to the unit drawings.

In cold water installation, to avoid that the condensate

drops on the ceiling, it is necessary to insulate the piping,

the valves, and the coils connections.

Valves electric wiring diagrams

For valves electric connection refer to wiring diagram relat-

ed to selected control.

The cables must pass through the apposite fairleads and

flexible couplings.

The valves must be connected according to the suggest-

ed electric wiring diagrams.

The valves used must stop the entering of the water

when there is no electrical feeding.

If the proposed connections are not respected, there will

be the risk that the water overflows from the condensate

collection tray.

It is important that the valves open only when the fan is

working at one of the three speeds.

Check the seal in the most critical points of the plant

when it is filled of liquid for the first time.

The manufacturer cannot be consider responsible in

case of bad working or damages due to the drop of

valves sets purchased directly by the installer from other

suppliers.

INSTALLATION OF VALVE UNIT Installation

Primary air flow connection CHD hydronic cassette units (2 pipe as 4 pipe version)

have primary air flow connection. They are equipped with

inlets for treated air on the corner of the unit. This air is

mixed with the untreated room air inside the appliance.

The pressure at the treated air inlets is slightly below

atmospheric pressure. The low pressure should be dis-

regarded in the design of the treated air system.

To connect cassette unit with primary air flow connection is

necessary a circular adapter (not provided) to be applied

to the primary air inlet for connecting the appliance air

pipes.

The flow of treated air is limited to 20% of the total air flow

of the fan convector at medium speed, with a maximum of

100 m3/h for each opening.

The fan convector must not interfere with the lighting sys-

tem in the false ceiling.

The fresh air should be treated, filtered and must not be

too cool.

Air multiple connection Air outlets are provided on the fan coil unit for connection to

separate supply air ducting. Air flow and pressure at each

air outlets are, however, a function of the number of air out-

lets used.

The size and the location of the outlets is shown by the

drawings.

All air ducting departing from the fan-coil unit must fea-

ture thermal insulation to avoid condensation and drip-

ping water.

After duct insulation, complete the water and electrical

connections.

DUCT INSTALLATION Installation

13

WATER CONNECTIONS Installation

Typical water piping diagram

CHD 506-706

2 Pipe

4 Pipe

CHD 809-1209

2 Pipe

4 Pipe

Field supply

Water in Shut off valve Water out

Water out Shut off valve Water in

Fan coil

unit

3-way motorized valve

14

When a piping is connected to the unit main body or

removed from it, be sure to use two wrenches to fasten it.

(See the figure)

Carefully insulate pipes, valve assemblies and coil con-

nections to avoid condensation forming on the pipes and

dripping on the false ceiling.

Provide the drain piping as short as possible with down-

ward inclination and no air trap.

To ensure correct condensate water flow, the drain pipe

should have a gradient of 2% without obstructions.

Furthermore an odour trap of at least 50 mm. depth should

be made to prevent unpleasant odours from reaching the

room.

Condensate may be discharged at a maximum height of

200 mm. above the unit.

The condensate pipe must be insulated.

If more than one unit is installed in the room, the drain sys-

tem can be made as shown.

The control panel can be reached by opening the grille

and removing the metal covers.

Connect the power cables to terminal box connectors in

accordance with the wiring diagram and tighten firmly.

Wiring diagrams have to be made by skilled installer.

Install the water probe (provided in wall-control kit) in

correspondence of delivery hydraulic pipe. Water probe

has to detect exact water temperature of the hydraulic

circuit. Install properly water probe with conductive

paste.

In case of valve unit installation, place water probe on

valve unit's pocket.

In case of 4-pipes installation, place water probe in cor-

respondence of heat coil (or heat valve unit's pocket).


15

1. REMOVE THE PLASTIC CAP

2. INSTALLATION AUXILIARY DRAIN PAN

SCREW M4x20MM

SCREW M4x20MM

SCREW M4x20MM

INSULATION


Auxiliary tray installation CHD 506-706 (U-2T e U-4T)

1. REMOVE THE PLASTIC CAP2. INSTALLATION AUXILIARY DRAIN PAN

SCREW 3 M4x20MM

Auxiliary tray installation CHD 809-1209 (U-2T e U-4T)

16

ELECTRICAL CONNECTION Installation

Connection instruction

Perform electrical connections in accordance with laws

and regulations in force in the country concerned.

Always disconnect the electrical power supply before

opening the unit.

Before installing fan coil make sure the rated voltage of

the power supply is 230V - 50 Hz.

Make sure that, in addition to supplying the working cur-

rent required by the fan coil, the mains electrical supply is

also able to supply the current necessary to operate other

household appliances present.

Maximum current absorbed by hydronic cassette is report-

ed in TECHNICAL DATA TABLE.

Cassette connectionCassette terminal board is configured for power, wall-mount-

ed control and valve connections, according to wiring dia-

grams reported in the installation manual.

The unit must always be earthed.

Upstream of the unit, fit an Omni polar switch with mini-

mum contact distance of 3 mm.

The minimum cross section of the electric wires is 0.75

mm2. Each terminal accommodates two wires of the same

cross-section (maximum 1.5 mm2).

Electrical characteristic The motor is protected by a thermal contact integrated in

the winding. It stops the motor if overheating occurs and

starts the motor again automatically after it has cooled

down.

The fan coil is provided with a terminal board for the con-

nection of the electrical feeding, for the fan speed control

and for the connection with the safety device

The installer has to provide input connection through

access provided on the sides of the unit, fixing the wires

and taking care not to pinch them.

Multiple connectionTo connect, respect the wiring diagrams in this booklet. Only

one fan coil can be connected to the control unit. To control

more than one fan coil with a single control unit, each appli-

ance must be fitted Kit SPB for multiple connection. Refer to

multiple connection wiring diagram and to the following table

Drain pumpOn cooling mode, the electronic board installed on the unit,

controls and runs the condensate drain pump. A level con-

trol system inside the unit starts the drain pump. In case the

internal condensate level reaches the safety limit, the supply

of the water to the valve is stopped. The safety relay has a

deviation contact and allows a remote alarm signal.

Unit Size NS-NSW (1) PS-PSW (1) MT-MTW (1) AT-ATW (1) SPB (2) SPB (3) Absorbtion*CHD 506 5 5 5 2 15 6 0,4

606 4 4 4 1 15 5 0,5

706 3 3 3 1 15 4 0,7

809 3 3 3 1 15 4 0,67

909 3 3 3 1 15 4 0,69

1109 2 2 2 1 15 3 0,92

1209 2 2 2 1 15 3 0,93

Note(1) Maximum number of unit of the same model and size, connectable to a single control

(2) Maximum number of units of different size or model connectable to a single control with SPB kit installation for each unit

(3) Maximum number of units of the same size and model connectable to a single control with a single SPB kit

* Electric absorption of a single unit (A)

Mutiple connection for hydronic cassette CHD

17


CHD 506 - 706

CHD 809 - 1209

18


Single electrical connections: cassette unit with wall-mounted control

For electrical connections of CHD cassette fan-coil refer to following electrical diagrams. Do not refer to wiring dia-grams present on instruction sheet of wall-mounted controls.

CHD 506706 + NSW

CHD 8091209 + NSW

19


Single electrical connections: cassette unit with wall-mounted control


CHD 506706 + ATW-MTW-PSW

CHD 8091209 + ATW-MTW-PSW

20

CHD 506706 + SPB + NSW


Multiple connection cassette fan-coil with wall-mounted controls


21

CHD 8091209 + SPB + NSW




22

CHD 506706 + SPB + ATW + MTW + PSW




23

CHD 8091209 + SPB + ATW + MTW + PSW




24

WALL-MOUNTED CONTROLS User

Function selector

Cooling

Riscaldamento

Off

Fan selector

Maximum fan speed

Medium fan speed

Minimum fan speed

NSW wall-mounted controlThe NSW control is used to regulate the air (3 speeds), the temperature through electronic thermostat, to select the sum-

mer/winter mode of operation and to switch the fan coil on/off and hot start function by minimun thermostat kit.

Technical dataSupply voltage 230 V ~ 10%

Supply frequency 50/60 Hz

Contact rating 2,5 A (cos 0.85; 230V)

Storage temperature -20 C / +85 C

Max. storage humidity 90% (not condensing)

Working temperature 0 C / +55 C

Max. working humidity 90% (not condensing)

Protection rating IP 30

Case material PC+ABS (flame retardant V0)

Color RAL 9003 (white)

Dimensions 120 x 75 x 25 mm

Weight 0,185 kg

25


DESCRIPTION OF FUNCTIONS

SUMMER mode of operationThe Summer mode is selected by setting the mode selector

on the relative symbol . In this mode the resources are

managed as follows:

- the summer mode valve is always ON;

- the winter mode valve is always OFF;

- the fans are always enabled and operate at the speed set

with the fan speed selector.

WINTER mode of operationThe Winter mode is selected by setting the mode selector


managed as follows:

- the summer mode valve is always OFF;

- the winter mode valve is always ON;



Hot Start functionThis function is available in the heating mode, connecting

the control with Minimum Temperature Thermostat kit. This

function activates the fan if the water is hot enough. It is not

available if the heating element is installed.

CONFIGURATION OF THE NSW CONTROL

Digital outputsYV1 Valve control (max 1,5 A).

This is used for opening of the delivery valve and the conse-

quent flow of water into the coil, as described below:

- 2-pipe system: the valve controls either the COOL circuit

or the HEAT circuit;

- 4-pipe system: the valve controls just the COOL circuit.

Place the water probe on the hot water coil.

YV2 Valve or heating element control (max 1,5 A).

This is used to govern, according to the application:

- 2-pipe system: the control heating;

- 4-pipe system: the delivery valve of the HEAT circuit.

Digital inputsMinimum thermostat input.

Closed contact (default) fans on.

Open contact fans off.

The current required by the fan passes through the termi-

nals of the digital input.

26

Function selector

Cooling

Riscaldamento

Off

Fan selector

Maximum fan speed

Medium fan speed

Minimum fan speed

PSW wall-mounted control The PSW control is used to regulate the airflow (3 speeds), select the summer/winter mode of operation and switch the fan coil

on/off and hot start function by minimun thermostat kit.




Remote water sensor 10 kOhm(@) T = 25 C






Case material PC + ABS (flame retardant V0)



Weight 0,250 kg


27




managed as follows:







managed as follows:





Hot Start functionThis function is available in the heating mode, but only acti-

vates the fan if the water is hot enough. It is not available if

the heating element is installed.

CONFIGURATION OF THE PSW CONTROL










- 2-pipe system: the control heating;


Analog inputsWater sensor input (kit included):

- Analogic input used for measuring the temperature of the

water or the coil.

- Sensor length: 3000 mm.

- Sensor position without valve: inserted in a copper bulb in

direct contact with the copper water pipe.


28

MTW wall-mounted controlThe MT control is used to regulate the air (3 speeds), the temperature through electronic thermostat, to select the sum-

mer/winter mode of operation and to switch the fan coil on/off.




Remote water sensor 10 kOhm @ T = 25 C

Regulation range +14C a 30C






Case material PC + ABS (flame retardant V0)



Weight 0,260 kg

Function selector

Cooling

Heating

Off

Fan selector

Maximum fan speed

Medium fan speed

Minimum fan speed

Temperature selecto

Adjust the temperature asrequired byturning the temperature selec-tor from +14C to 30C.

Led description

Blue Led: indicates fan coilthermostat call


29




managed as follows:







managed as follows:



- the fans are always enabled according to Hot Start func-

tion, and operate at the speed set with the fan speed

selector.

Hot Start functionThis function is available in the heating mode, but only acti-

vates the fan if the water is hot enough. It is not available if

the heating element is installed.

CONFIGURATION OF THE MTW CONTROL

Analog inputsAir sensor input included in MTW control:

- analog input used for temperature control.

Water sensor input (kit included):

- analog input used for measuring the temperature of the

water or the coil;

- sensor length: 3000 mm;

- sensor position without valve: inserted in a copper bulb in











- 2-pipe system: the control or additional heating elements;



30

ATW wall-mounted controlThe ATW control is used to regulate the air (3 speeds + auto), the temperature through electronic thermostat, to select the sum-

mer/winter/auto mode of operation and to switch the fan coil on/off.

Temperature selector

Adjust the temperature as

required by turning the

temperature selector from +14C

to 30C.

Function selector

Select the mode of operation

pushing the buttom.

Cooling

Heating

Off

Automatic setting

Speed selector

Select the fan speed pushing the buttom.

The repeated pressure of fan button

determines speed required.

Maximum fan speed

Medium fan speed

Minimum fan speed

Automatic fan speed

Led

Blue LED: Heating / Cooling

plus regulator call

Blue LED blinking: Hot start / Too Cool

function active

Blue LED:

operation in Cooling mode

Blue LED:

operation in Heating mode

Blue LED:

automatic cooling / heating

mode selection



Contact rating 1A (cos 0.85; 230V)

Remote air sensor 10 kOhm @ T = 25 C

Remote water sensor 10 kOhm @ T = 25 C

Regulation range +14C a 30C






Case material PC+ABS (flame retardant V0)



Weight 0,265 kg


31



on the relative symbol .

In this mode the resources are managed as follows:



- the fans are always enabled according to the Too Cool

function and operate at the speed set with the fan speed

selector.


on the relative symbol .

In this mode the resources are managed as follows:



- the fans are always enabled according to the Hot Start

function and operate at the speed set with the fan speed

selector.

AUTO mode of operationThe controller automatically selects the mode of operation in

relation to the type of plant selected:

- 2 pipes system: selects the mode of operation in relation

to the water temperature;

- 4 pipes system: selects the mode of operation in relation

to the air temperature.

AUTO fan modeThe controller will define the fan speed as much high as the

difference between the desired room temperature against

the current one.

Hot Start functionThis function is available in the heating mode and it only

activates the fan if the water is hot enough. It is not available

if the heating element is installed.

Too Cool functionThis function is available in the cooling mode, but only acti-

vates the fan if the water in the coil is cold enough.

CONFIGURATION OF THE ATW CONTROL

Analog inputsAir sensor input included in ATW control:

- analog input used for temperature control.

Water sensor input (kit included):

- analog input used for measuring water or coil temperature;

- sensor length: 3000 mm;

- sensor position without valve: inserted in a copper bulb in



This is used for opening the delivery valve and the conse-

quent water flow into the coil, as described below:






This is used to govern according to the application:

- 2-pipe system: the control or additional heating elements;


Digital inputsDigital inputs configurable is available:

- window contact: contact close, stop cooling/heating func-

tion.

- economy contact: contact close, the set point increases in

cooling mode or reduce in heating mode to obtain energy

saving;

- remote summer/winter: remote changeover heating or

cooling mode.

Dip Switch5 dipswitches (DS) are available so that the installer can set

type of the system. These DS are distributed as listed in the

table.

All the thermostats have the 5 DS in the OFF position by

DEFAULT.

Failure displayWhen the ventilation is inhibited by inadequate temperature

mode of operation required and there is a request for ther-

moregulation, led associated with the request flashes.

Temperature sensors failure. If the ambient temperature

sensor is damaged, led for selected mode of operation win-

kles with the sequence: 1 flash and pause for 3,5 sec.

If the heat exchanger temperature sensor is failure (short-

circuit), led for selected mode of operation winkles with the

sequence: 2 flashes and pause for 2,5 sec.

Window contact standy. If the entry ID1 is activated and

configured as a contact window, the decommissioning

expenditure is reported by the flash led corresponding to the

mode of operation and intensity of ventilation required.

Reduce leds' brightnessWhile pressing the keyboard mode of operation for at least 2

sec, causes halving or restoring indicator lamps' brightness.


32

MAINTENANCE Service

CLEANING THE AIR FILTERS

Before inspection and maintenance of the unit, always

set the main power switch to OFF to cut off power sup-

ply.

Unclip the grille from the front frame by turn the two crews

through 90 (1/4 turn)

Swing the grille open and remove the air filter out off the

grille.

Remove the air filter and clean by vacuum cleaner or if it is

very dirty, wash it with soap water then wipe off until it is

completely dry before reinstallation.

Swing up the grille and lock by turn the two screw.

CLEANING THE UNIT Clean the air conditioner and the remote control with dry

cloth or a vacuum cleaner. If damp cloth is used, remove

moisture by using dry cloth afterward.

AT THE START OF THE SEASON Check that nothing blocks the air inlet and outlet of indoor

and outdoor units.

Running the unit without an air filter can cause malfunc-

tions due to dirt or dust . Always install anair filter at all

times.

Check that a drainage hose does not bend or clog.

Check that the units are properly installed.

DURING THE OFF SEASON Cut off the power supply main switch.

Clean the air filter and other parts.

Leave the circulation fan running to : 2-3 hous to dry out

the inside of the unit

If the air filter is dirty, it will cause the reduction of airflow,

the unit is overload and consume 6% more of electricity.

So regular cleaning is necessary.

33

MAINTENANCE Service

Fan-coil units must be disconnected from mains power and

secured against unintentional re-connection before any

maintenance work. All work must be in accordance with all

applicable safety and health rules and regulations.

Filter Maintenance The filter pad may be cleaned or

replaced.

For cleaning, a vacuum-cleaner operating at medium or low

suction should be used.

For replacement, the fasteners of the intake grille must be

opened and the grille must be removed. The filter pad must

then be taken out and replaced. Finally, the intake grille

must again be locked in place.

CLEANING, MAINTENANCE AND SPARE PARTS

Maintenance of the unit must be carried out by trained

maintenance personnel only.

FAN:

No maintenance required.

HEAT EXCHANGER COIL:

No ordinary maintenance required.

FILTER:

Using a suitable tool, unhook the filter holder strip and

extract the filter from the guides.

Clean regularly with a vacuum cleaner or shake lightly.

When it can no longer be cleaned, replace.

SPARE PARTS:

To order spare parts, always give the model of appliance

and a description of the component.

IMPORTANT!BEFORE CARRYING OUT CLEANING OR MAINTE-NANCE, MAKE SURE THE POWER TO THE UNIT ISTURNED OFF

IMPORTANT!ALWAYS REPLACE THE FILTER AFTER CLEANING.

OPERATING GUIDE Service

The temperature should not be set lower than what you

need. This would result to increase energy cost.

Clean the air filter every week for higher efficiency.

Draw close curtains or close glass windows when cooling

to prevent heat load from sun light which may cause more

electricity cost.

To distribute cool air through out the room, adjust air flow

direction as shown by the arrows (see picture) to diffuse

cool air.

Close windows and doors while operating the unit to pre-

vent leakage of cooled air to save energy.

In case of ineffective ventilation, open the window to venti-

late the room air once in a while but not too long since

cooled air will be uselessly drained out.

PRECAUTIONS Service

Check electrical system (voltage and frequency). Use the

proper power supply indicated on the unit to operate the

air conditioner and only fuses with specified capacity. Do

not use pieces of wire instead of fuse.

Do not insert objects into the air inlet or outlet when the air

conditioner is running as it may case damage or personal

injury. Also pay special attention when children are

around.

Do not channel the air flow directly at people, especially

infants, aged persons, or patients.

Turn off the air conditioner if, while running, electricity

interference occurs. If the unit is not to be used for a long

time, cut off the power supply main switch.

Do not locate any obstacles against the air flow direction

of indoor and outdoor units. Inefficient performance or

malfunction may result.

Do not locate a heater or any other heat sources closeto the unit . The heat may deform the plastic parts.

TROUBLESHOOTING Service

PROBLEMThe motor does not rotate or rotates incorrectly.

The unit does not heat/cool as before.

The appliance leaks water.

1

2

3

REMEDYMake sure the power to the unit is on.

Make sure the wires are correctly connected, referring to the

wiring diagram.

Control if the main switch, the seasonal commutator and the

thermostat are in the right position.

Make sure the fi lter is clean.

Make sure the hydraulic circuit is free from air by venting the

heat exchanger.

Make sure it is sloping in the direction of the condensate

drain.

Make sure the condensate drain is not clogged.

34

MALFUNCTIONS AND CORRECTIVE ACTIONS Service

MALFUNCTIONFan does not run

Low air flow

from fan-coil unit

Fan-coil unit noisy

Fan-coil unit

does not heat

(sufficiently)

Fan-coil unit

does not cool

(sufficiently)

Fan-coil unit leaks

in the cooling mode

Room temperature

fluctuates

POSSIBLE CAUSESFan coil unit not switched on

No power

Cabling not connected

The supply is stopped by the float switche

Low fan speed

Air ducting obstructed

Filter dirty

Hight fan speed

Low air discharge temperature

Air discharge system obstructed

Fan bearing defect

Filter dirty

Fan not switched on

Heating fluid not hot

Low water flow rate

Low setpoint temperature

Controller or sensor positioned near heat source

Filter dirty

Fan not switched on

Cooling fluid not cold

Low water flow rate

High setpoint temperature

Control located in cold air (e.g. near door)

Filter dirty

Condensate tray dirty

Cold water lines not insulated

Unit not suspended horizontally

Condensate drain plugged

Condensate pump pumps no water

Condensation on air register

The control located at wrong place

(e.g. at doors or in the airdischarge area)

High heating fluid temperature

Independently controlled units connected to same

water line (e.g. radiators with thermostatic valves)

CORRECTIVE ACTIONSwitch on fan-coil unit

Check fusing/mains power

Connect cabling (qualified person only)

Verify the float

Select higher fan speed

Clear air ducting, for unrestricted air flow

Replace or clean filter

Select lower fan speed

Increase temperature setting of control

Clear air discharge system

Call field service


Switch on fan

Switch on boiler

Switch on recirculation pump

Vent heating system

Check pump throughput

Check water distribution and reset pressure losses in different

lines

Increase control setpoint temperature

Relocate the control


Switch on fan

Switch on chiller

Switch on recirculation pump

Vent system

Check pump throughout

Check water distribution and reset pressure losses in different

lines

Lower control setpoint temperature

Relocate the control


Clean condensate tray

Insulate cold water lines

Realign unit and suspend unit horizontally

Check condensate drain for sufficient slope, clean and refill trap

Check power supply in terminal box and at pump

Check pump for dirt in the intake area

Check pump start-up

Check float switch for correct operation

Increase water flow temperature

Increase angle between air register stats and ceiling

Use coated air register

Increase fan speed

Relocate control to place where room temperature is repre-

sentative (remote from fan-coil unit)

Add or reset maximum and minimum supply air temperature

sensors

Reset boiler control

Split water supply; if impossible use flow control valves on oth-

er units and increase system pressure

www.climaveneta.com

Climaveneta S.p.A.Via Sarson 57/c36061 Bassano del Grappa (VI)ItalyTel +39 0424 509 500Fax +39 0424 509 [email protected]

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