AI - Climacon

OPERATION - INSTALLATION - SERVICE MANUAL

Ductable hydronic terminal u n i t s w i t h e l e c t r o n i c a n d electromechanical control.

HWD - HWDE

602

÷1104

2

U I A

General warnings

U I A

U I A

Fundamental safety rules

Identification

U I A

I A

Receiving and handling the product

Description of standard unit

I

I

I

I A

Dimensional drawings

Installation

Minimum installation distances

Hydraulic connections

I A

I A

Electrical connections

Wiring diagrams

I A

A

Technical data

Fan performance curves

I A

I A

Cooling performance

Heating performance

I A

Accessories

19

22

16

17

24

7

10

6

6

5

5

3

4

2

2

3

INDEX

I A

Heat output of auxiliary hot water coil

I A

I A

Pressure drop with accessories

Receiver panel HWDE

U I A

U I A

Description of remote control unit 31

Control board operating modes HWDE 32

U I A

I A

Control board operating modes HWD

Checking and starting up the unit

A

A

Fan calibration mode HWDE

Fan calibration mode HWD

34

35

33

34

28

29

30

U I A

I A

U I A

U I A

I A

U I A

Displaying alarms HWDE

Test mode HWDE

Power failure HWDE

Routine maintenance

Seasonal maintenance

Useful information

36

36

35

36

37

37

U

User

I

Installer

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

Important Danger voltage

Prohibition Danger moving blades

A

Assistance

Climaveneta is part of the Eurovent certification programme.

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

HWD - HWDE English 06/01 1

GENERAL WARNINGS

HWD-HWDE terminal units are the internal units of a ductable hydronic system.When used in combination with water chillers, they form a cooling only system, when used with reversible water chillers/heat pumps, they form a cooling and heating system.

Incorrect installation, regulation and maintenance, improper use or installation by unqualified personnel absolves 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 allowed.

Read this manual carefully. All work must be carried out by qualified personnel in conformity with legislation in force in the country concerned.

The guarantee is invalidated if the above instructions are not respected and if the unit is started up for the first time without the presence of personnel authorised by the Company (where specified in the supply contract) who should draw up a “startup report”.

U I A

The documentation supplied with the unit

must be consigned to the owner who should keep it carefully for future consultation.

When the items are consigned by the carrier, check that the packaging and the unit are undamaged. If damage, missing components or consignment errors are noted, indicate this on the delivery note. A formal complaint should be sent via fax or registered post to the After Sales Service within eight days from the date of receipt of the items.

All the operations involved in handling, installing, starting up and testing the unit must be carried out by qualified personnel. Failure to observe this warning could cause serious damage.

FUNDAMENTAL SAFETY RULES

When using this unit, which requires electricity and water, a number of fundamental safety rules must be observed, namely:

The unit must not be used by children or by unfit persons without suitable supervision.

Do not touch the unit with bare feet or with wet or damp parts of the body.

Do not carry out cleaning operations without first disconnecting the unit from the electricity supply by placing the mains switch in the ”off” position.

Do not modify safety or regulation devices

without authorisation and instructions from the manufacturer.

Do not pull, detach or twist the electrical cables coming out of 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.

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 suitable space for access to the unit for maintenance and/or service operations.

2 English 06/01

U I A

The unit must be installed in a closed technical room.The fan outlets must be protected with ducts or grills preventing access to the impellers.

Power supply: the cross section of the electrical cables must be adequate for the power of the unit and the power supply voltage must correspond with the value indicated on the respective units. All units must be earthed in conformity with current legislation in the country concerned.

Hydraulic connections should be carried out as indicated in the instructions to guarantee correct operation of the unit.

Handle the unit with the utmost care (see table on page 3) and avoid damaging it.

HWD - HWDE

U I A

HWD-HWDE hydronic terminals can be identified by the:

Packaging label

Giving the data identifying the product.

Rating plate

Giving the technical and performance data of the unit.

If this is lost, ask the After Sales Service for a replacement.

Tampering with or the removal or absence of rating plates or other means enabling the unit to be identified causes problems during installation and maintenance.

IDENTIFICATION

De' Longhi S.p.a. - 31100 Treviso / Italia

Via L.Seitz, 47 - tel. 04224131 fax 0422413659

MODEL:

VOLTAGE:

CODE:

COOLING CAPACITY

HEATING CAPACITY

REFRIGERANT TYPE

REFRIGERANT CONTENT

MAXIMUM PRESSURE

MAIN ELECTRICAL POWER SUPPLY

AUXILIARY ELECTRICAL POWER SUPPLY

MAX. POWER INPUT

MAX. POWER INPUT

START-UP CURRENT

ELECTRICAL WIRING DIAGRAM

OPERATING WEIGHT

YEAR OF FABRICATION

-------------------

-------------------

-------------------

-------------------

-------------------

-------------------

-------------------

-------------------

-------------------

-------------------

-------------------

-------------------

------------------kW kW

A

A

N

°

Kg

Kg bar

V---Hz

V---Hz kW

U I A

RECEIVING AND HANDLING THE PRODUCT

HWD-HWDE hydronic terminals are supplied accompanied by a plastic envelope fixed to the top of the hydronic terminal containing:

- instruction manual;

- guarantee certificate;

- CE declaration.

The instruction manual is an integral part of the unit and should thus be read and kept carefully.

Do not dispose of packaging materials in the environment or leave them within reach of children as they may represent a hazard or a source of pollution.

The unit should always be handled by qualified personnel using equipment adequate for the weight of the hydronic terminal.

During transport, the hydronic terminals should be handled with extreme care.

1

2

Size

Model

Dimension A (mm)

Dimension B (mm)

Dimension C (mm)

Gross weight (kg)

HWD - HWDE

= 1 0 0 =

B

1

2

C

602 703 803 904 1003 1104

HWD - HWDE HWD - HWDE HWD - HWDE HWD - HWDE HWD - HWDE HWD - HWDE

335

1055

815

45

335

1055

815

47

335

1205

815

54

335

1205

815

56

355

1405

875

58

355

1405

875

70

English 06/01 3

DESCRIPTION OF STANDARD UNIT

I A

HWD-HWDE units are designed for flush mounting. In combination with the numerous accessories available, they can be used to create high specification installations for air distribution and environmental temperature and humidity control.

RECEIVER PANEL (HWDE ONLY)

Wall mounted panel with connection terminal board, infrared receiver, LED display and reset/programming button.

REMOTE CONTROL (HWDE ONLY)

Infrared remote control unit with LCD display and keypad for selecting operating mode.

STRUCTURE

Structure in hot-galvanised steel panelling, complete with couplings for connection to ducting and gravity drain condensate pan. Internal self-extinguishing closed cell expanded polyethylene thermal and acoustic insulation. Removable regenerable filter in self-extinguishing acrylic, efficiency class EU2. Ceiling mounting brackets and threaded bars, complete with vibration dampers, fixing washers and bolts and threaded tie-bars for ceiling fixing. Insulating gasket for connection to ducting.

HEAT EXCHANGE COIL

With copper tubes and high exchange surface area aluminium fins.

FAN

Centrifugal fan, electronic speed regulation, statically and dynamically balanced impellers. High working head.

ELECTRICAL SWITCHBOARD

Power and control electrical switchboard constructed in accordance with IEC 204-1/EN60204-1, complete with regulator and terminal board for connection to power supply, auxiliary controls and the PTH2 room thermostat (HWD only).

ACCESSORIES (see page 24)

- Two-way intake plenum with damper

- Air purification module

- Activated carbon filter

- hot water heat exchange module

- intake plenum

- delivery plenum

- electric heater module:

(3 kW for sizes 602-703-803-904)

(4.5 kW for sizes 1003-1104)

- steam humidifier module with humidistat

- Discharge plenum for round ducting

(4 x 160mm diam. for sizes 602-703-803-904)

(4 x 200mm diam. for sizes 1003-1104)

- Condensate drain pump

- Remote control unit/receiver wall mounting bracket kit

(HWDE only)

- PTH2 room thermostat, OFF, summer-winter, 3 speed and auxiliary controls.

NOTE (HWDE only): for the complete operation of the unit, a valve must be installed for each water coil used. If valves are not used on the machine, the wiring of the power supply to the fan must be modified, as shown in the electrical connection diagram on page 11.The "fan" function will be eliminated as a consequence.

1

2

4

1 Air filter

2 Finned coil

3 Complete electrical switchboard

4 Fan assembly

English 06/01

4

3

HWD - HWDE

I

5 238

N

C

L

H

A

E

DIMENSIONAL DRAWINGS

1 water in connection

2 water out connection

3 air filter

4 fan cover

5 coil compartment cover

6 air filter access

7 condensate drain access

8 electrical switchboard

G

80

4

48.5

5 6 7

46

F

77

1 2 3 8

Size

HWD-HWDE

602 - 703

803 - 904

A

900

1050

1003 - 1104 1250

Size

HWD-HWDE

602 - 703

803 - 904

1003 - 1104

B

295

295

315

C

690

690

750

Connections

Ø 1

1/2” Gas

Ø 2

1/2” Gas

3/4” Gas

1” Gas

3/4” Gas

1” Gas

D

187

187

237

E

750

890

982

Dimensions (mm)

F G

116

131

134

34

29

134

H

750

982

982

Weight

(kg)

41-43

50-52

68-70

I

187

228

237

L

950

1100

1300

M

72

72

102

N

738

738

798

O

34

29

34

I

INSTALLATION

CHOICE OF INSTALLATION SITE

Before installing the unit, agree the site where it will be installed with the customer, taking the following points into consideration:

- check that the fixing points are adequate to support the weight of the unit;

- pay scrupulous respect to safety distances between the unit and other equipment or structures (see Minimum Installation Distances);

- install the unit with a minimum slope of 2 mm/m to guarantee condensate drainage.

Size

602-703

A mm B mm

950 320

803-904 1100 320

1003-1104 1300 320

1

Ceiling

A

B

Tie rods

Tie rod

Nut

Washer

Bracket

Vibration damper

Washer

Nut

Nut

2

Washer

Fixing washer

Bolt

Threaded insert

POSITIONING

Before handling the unit, check the capacity of the lift equipment used, respecting the instructions on the packaging.

To move the unit horizontally, make appropriate use of lift trucks or similar.

Units are supplied with the following accessories to simplified installation: support brackets, threaded tie rods for ceiling fixing, vibration dampers, washers and fixing bolts.

The figure below illustrates the installation procedure.

3

4

HWD - HWDE English 06/01 5

MINIMUM INSTALLATION DISTANCES

I

Min. 400 mm (*) Min. 100 mm

Note:

the unit must slope by at least 2 mm/m towards the condensate drain.

( * ) Min. 400mm only in if the Air purifier Module is fitted.

HYDRAULIC CONNECTIONS

WATER PIPE CONNECTION

Make sure the diameter of the water pipes is adequate for the actual length of the piping and in any case not less than the diameter of the connection on the unit. When connecting the water pipes to the coil, take care not to damage the coil manifold. During this operation, hold the coil connections firm with a spanner to avoid damaging them.

The fittings are located on the back of the unit looking at the air outlets.

CONNECTING THE WATER PIPING

This operation must be carried out with particular care.

The unit is fitted with a gravity drainage condensate drain pan with an open connection on the back of the unit. The pipe should have an internal diameter of at least 16 mm.

The drain connection has an external diameter of 18 mm.

Proceed according to the following instructions (see figure).

1. Connect the condensate drain hose to the pan outlet with a hose clip.

2. Make sure the drain pipe has a slope of at least 2 cm/m without obstructions or bottlenecks.

3. Fit a siphon. By eliminating the pressure drop caused by the fan, this prevents air being sucked up by the drain hose.

I A

4. Connect the condensate drain pipe to a rainwater drainage system. Do not connect to the sewage system as odours may be sucked up if the water in the siphon evaporates.

5. After connecting, check correct drainage of the condensate by pouring water into the pan.

IMPORTANT

gravity drainage may be converted into forced drainage by fitting the condensate drain pump available as an accessory.

6 English 06/01 HWD - HWDE

HYDRAULIC CIRCUIT

For correct operation of the unit, the BT1 room sensor must be positioned directly in the inflow of air (BT1 sensor cable length: 3m).

Warnings: if the humidifier module is present, the overflow pipe and seasonal drain valve should be connected, as described in the paragraph “connecting the condensate drain pipe”. For the diameter of the connections, see page 26.

4 1 3 2

WATER TANK

T

1

2

Fan

Main coil

3

4

Auxiliary coil

Humidifier

I A

POWER CONNECTIONS

HWD-HWDE hydronic terminals leave the factory completely wired and ready for connection to the mains electricity supply, the auxiliary devices, the accessories and the receiver.

The receiver must be connected using shielded cable to avoid radio interference that could lead to malfunction. All electrical connections must be carried out by qualified personnel. For all electrical work, refer to the electrical wiring diagrams in this manual.

You are also recommended to check that: the characteristics of the mains electricity supply are adequate for the absorptions indicated in the electrical characteristics table below, also bearing in mind the possible use of other equipment at the same time.

602 - 703

803 - 904

1003

1104

F.L.I.

Absorbed power

F.L.A.

Absorbed current

L.R.A. Compressor start-up current

Respect instructions for connecting phase, neutral and earth conductors.

The power line should be fitted upstream with a suitable device to protect against short-circuits and leakage to earth, isolating the installation from other equipment.This protection device should also act as a main switch and, if not visible from the electrical switchboard of the unit, should be lockable.

Voltage must be within a tolerance of ±10 of the rated power supply voltage for the unit. If this is not the case, contact the electricity supply company.

For electrical connections, use double insulation cable in conformity with current legislation in the country concerned.

An efficient earth connection is obligatory.

Failure to earth the appliance absolves the manufacturer of all liability for damage.

Power to the unit must be turned on only after installation work (mechanical, refrigerant and electrical) has been completed.

All electrical connections must be carried out by qualified personnel in accordance with legislation in force in the country concerned.

ELECTRICAL ABSORPTIONS

Size

Electrical power supply

(V-Ph-Hz)

230~50

230~50

230~50

230~50

Do not use water pipes to earth the unit.

Rated values (1)

F.L.I.

(kW)

F.L.A.

(A)

0,30

0,35

0,52

0,60

1,30

1,55

2,30

2,60

(1)

(2)

F.L.I.

(kW)

0,37

0,44

0,90

0,90

Max. values (2)

F.L.A.

(A)

1,7

1,7

3,3

3,3

Outside air temperature 35°C - Room temperature 27°C, R.H., values refer to the lower rated voltage (50Hz).

These values should be used to dimension protection switches and power cables.

HWD - HWDE English 06/01 7

HYDRAULIC CONNECTIONS

To connect the unit, bring the power cable to the electrical switchboard inside the unit and connect it to the phase (L), neutral (N) and earth (PE) terminals, including a suitable main switch with automatic disconnector and residual current protection between the power line and the unit.

ELECTRICAL SWITCHBOARD LAYOUT HWDE

AUXILIARY CONNECTIONS

All the terminals referred to in the following explanations are to be found on the terminal board located on the electronic board.

Terminal board

Radio interference suppresser

8 7 6 4 5 3 2 1

Cable grip

Unit control board

9 10 39 40

ON

1 2 3 4 5 6

11 12 35 36 13 14 37 38 15 16

To access the power supply board, remove the switchboard cover.This operation should be performed only with the main switch in the OFF position.

1-2

3-4

Humidifier output (A4 optional

Internal fan (EV1)

5-6-7-8 Board power supply

9-10 Main coil temperature control sensor (BT2)

11-12

13-14

15-16

17-24

Condensate pump alarm input (F1)

Air intake assembly control sensor (BT1)

0-10V output for electric heater or hot water coil modulating valve (optional SA2)

Remote control receiver input (A5)

25-26

27-28

29-30

31-32

33-34

35-36

37-38

39-40

External unit defrosting indicator input l (F2)

External unit shut down alarm (F3)

Cooling output (RL1)

Heating output (RL2)

Air purifier output (A3 optional)

Auxiliary coil temperature control sensor (BT3)

Output (0-10 V) for main water coil modulating valve (SA3)

Humidifier alarm input (F4)

PRELIMINARY CHECKS

To run functions 1, 2, 3, 4, 5, and 6 (if present), the corresponding DIP-SWITCH must be selected on the board.

ON

1 2 3 4 5 6

DIP-SWITCH

5

6

3

4

1

2

Auxiliary coil present (ON present)

Configuration output SA2-SA3 (valve or electric heater kit, OFF proportional 0-10 V, ON on/off)

Fan calibration (ON active, see page 34)

Test mode (ON active)

For HWDE, always OFF

Cooling only or cooling and heating selector)

(ON cooling and heating)

8 English 06/01 HWD - HWDE

ELECTRICAL SWITCHBOARD LAYOUT HWD

Radio interference suppresser

Unit control board

DIS1

TH1

C2

DL9739.0 LC

R2

D1

C1

R1

J1

FU1

R4

RL1

R3

J2

RP1

RP1

RP2 RP3 RP4

RP2 RP3 RP4

Terminal board

Cable grip

HWD - HWDE English 06/01 9

ELECTRICAL WIRING DIAGRAMS

HWDE

34

33

32

35

37

36

31

30

29

28

27

26

25

24

+to

+to

+to

18

19

20

21

16

17

22

23

12

13

14

15

11

10

8

9

7

6 COOLING

HEATING

5

4

F

N

6 5 8

230Vac

7

3

2

10 English 06/01 HWD - HWDE

I A

HWD

5

4

7

6

9

8

230Vac

1 2

3

2

F

N

MIN.

MED.

MAX.

HWD - HWDE English 06/01 11

Electrical connection diagram standard HWDE unit with valve for main coil

2 3 0 V

5 A

2 3 0 V

5 A

2 3 0 V

1 0 0 mA

F N

U N 2 9 3 0 3 1 3 2 3 3 3 4

HWDE ELECTRIC AL BOARD

0 - 1 0 VDC

1 0 mA

0 - 1 0 VDC

1 0 mA

1 5 1 6 3 7 3 8

I N PUT

DIG I TA L

1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 1 1 1 2 2 5 2 6 2 7 2 8 3 9 4 0

ANALOGIC

3 5 3 6

QF1 Main unit residual current circuit-breaker

(not supplied)

YV1 Main coil valve (not supplied)

E2 Condensate drain pump

P E U N

Q F 1

YV1

17 18 19 20 21 22 23 24

A2

Electrical connection diagram, standard HWDE unit with auxiliary water coil, valves and humidifier

2 3 0 V

5 A

2 3 0 V

5 A

2 3 0 V

1 0 0 mA

F N

2 3 0 V

7 A

0 - 1 0 VDC

1 0 mA

U N 2 9 3 0 3 1 3 2 3 3 3 4 1 2 1 5 1 6

H WDE E L E C TRIC AL BOARD

0 - 1 0 VDC

1 0 m A

3 7 3 8

I NPUT

D IG ITAL

1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 1 1 1 2 2 5 2 6 2 7 2 8 3 9 4 0

ANALOG IC

3 5 3 6

HUM ID IF IE R

E L E CTR ICA L B OA RD

1 2

E 1

YV2 YV1

17 18 19 20 21 22 23 24 NC C NO

A2

E 2

L N

BT3

U N 1 2 3 4

2 1 3

B1

RD

QF1 Unit residual current circuit-breaker + humidifier and condensate drain pump (not supplied)

E1 Air purifier (accessory)

YV2 Auxiliary hot water coil valve (not supplied)

YV1 Main coil valve (not supplied)

A2 Receiver

E2 Condensate drain pump (accessory)

BT3 Auxiliary hot water coil temperature sensor

B1 Humidistat (supplied with the humidifier, accessory)

RD Humidifier alarm signal (not supplied)

QF 1

P E U N

Electrical connection diagram, standard HWDE unit with auxiliary water coil, valves and humidifier and alarm display on the receiver

2 3 0 V

5 A

2 3 0 V

5 A

2 3 0 V

1 0 0 mA

F N

2 3 0 V

7 A

0 - 1 0 VDC

1 0 mA

U N 2 9 3 0 3 1 3 2 3 3 3 4 1 2 1 5 1 6

HWDE E L E C T RICAL BOAR D

0 - 1 0 VDC

1 0 mA

3 7 3 8

I NP UT

DI GI TAL

1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 1 1 1 2 2 5 2 6 2 7 2 8 3 9 4 0

ANAL OGI C

3 5 3 6

KA1

1 2

E 1

YV2 YV1

17 18 19 20 21 22 23 24 NC C NO

A2

E 2

L N

BT3

HUMI DI F I E R

E L E CTRI CAL BOARD

U N 1 2 3 4

2 1 3

B1

KA1

QF1 Unit residual current circuit-breaker + humidifier

E1 and condensate drain pump (not supplied)

Air purifier (accessory)

YV2 Auxiliary hot water coil valve (not supplied)

YV1 Main coil valve (not supplied)

A2 Receiver

E2 Condensate drain pump (accessory)

BT3 Auxiliary hot water coil temperature sensor

B1 Humidistat (supplied with the humidifier, accessory)

KAI Auxiliary relay (not supplied)

QF 1

P E U N

12 English 06/01 HWD - HWDE

Electrical connection diagram, standard HWDE unit with electric heater powered at 230~50, humidifier and valve on the main coil

2 3 0 V

5 A

2 3 0 V

5 A

2 3 0 V

1 0 0 mA

F N

2 3 0 V

7 A

0 - 1 0 VDC 0 - 1 0 VDC

1 0 mA 1 0 mA

U N 2 9 3 0 3 1 3 2 3 3 3 4 1 2 1 5 1 6 3 7 3 8 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4

INPUT

DIGITAL ANALOGIC

1 1 1 2 2 5 2 6 2 7 2 8 3 9 4 0 3 5 3 6

QF 2

1 2

E 1

YV1

17 18 19 20 21 22 23 24 NC C NO

A2

E 2

L N

HE ATE R

E L E CTRI CAL BOARD

U V W N

R S T N

ON- OF F 0 - 1 0 Vd c

QF 3

I S 1

HUMI DI F I E R

E L E CTRI CAL BOARD

U N 1 2 3 4

2 1 3

B1

RD

QF1 Unit residual current circuit-breaker (not supplied)

QF2 Main unit + humidifier thermal overload solenoid switch (not supplied)

QF3 Heater module thermal overload solenoid switch

(not supplied)

E1 Air purifier (accessory)

YV1 Main coil valve (not supplied)

E2 Condensate drain pump

E2 Condensate drain pump

IS1 Electric heater ON-OFF switch (not supplied)

B1 Humidistat (supplied with the humidifier, accessory)

RD Humidifier alarm signal (not supplied)

P E U V W N

QF 1

Electrical connection diagram, standard HWDE unit with electric heater powered at 400-3~50+N, humidifier and valve on the main coil

2 3 0 V

5 A

2 3 0 V

5 A

2 3 0 V

1 0 0 mA

F N

U N 2 9 3 0 3 1 3 2 3 3 3 4

HWDE E L E CTRI CAL BOARD

2 3 0 V

7 A

0 - 1 0 VDC

1 0 mA

0 - 1 0 VDC

1 0 mA

1 2 1 5 1 6 3 7 3 8 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4

I NPUT

D IG ITAL ANAL OGI C

1 1 1 2 2 5 2 6 2 7 2 8 3 9 4 0 3 5 3 6

HE ATE R

E L E CTRI CAL BOARD

U V W N

ON- OF F 0 - 1 0 Vd c

HUMI DI F I E R

E L E CTRI CAL BOARD

U N 1 2 3 4

QF 2

1 2

E 1

YV1

17 18 19 20 21 22 23 24 NC C NO

A2

E 2

L N

QF 3

I S 1

2 1 3

B1

RD

QF1 Unit residual current circuit-breaker (not supplied)

QF2 Main unit + humidifier thermal overload solenoid switch (not supplied)

QF3 Heater module thermal overload solenoid switch

(not supplied)

E1 Air purifier (accessory)

YV1 Main coil valve (not supplied)

E2 Condensate drain pump

E2 Condensate drain pump

IS1 Electric heater ON-OFF switch (not supplied)

B1 Humidistat (supplied with the humidifier, accessory)

RD Humidifier alarm signal (not supplied)

P E U V W N

QF 1

Electrical connection diagram, standard HWDE unit without valves, with humidifier and electric heater

U N

QF 2

PE U V W N

QF 1

A

B

E V1

3

I NTE RNAL

F AN

RL1 RL2

2 3 0 V

5 A

2 3 0 V

5 A

2 3 0 V

1 0 0 mA

F N

4 2 9 3 0 3 1 3 2 3 3 3 4

H W D E E L E CTRICAL BOAR D

2 3 0 V

7 A

0 - 1 0 VDC 0 - 1 0 VDC

1 0 mA 1 0 mA

1 2 1 5 1 6 3 7 3 8 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4

I NPUT

DI GI TAL ANAL OGI C

1 1 1 2 2 5 2 6 2 7 2 8 3 9 4 0 3 5 3 6

C1

M

1~

1 2

E 1

17 18 19 20 21 22 23 24 NC C NO

A2

E 2

L N

HE ATE R

E L E CTRI CAL BOARD

U V W N

ON- OF F 0 - 1 0 Vdc

QF 3

I S 1

HUMI DI F I E R

E L E CTRI CAL BOARD

U N 1 2 3 4

2 1 3

B1

RD

QF1 Unit residual current circuit-breaker (not supplied)

QF2 Main unit + humidifier thermal overload solenoid switch (not supplied)

QF3 Heater module thermal overload solenoid switch

(not supplied)

EV1 Fan

E1 Air purifier (accessory)

YV1 Main coil valve (not supplied)

A2 Receiver

E2 Condensate drain pump

E2 Condensate drain pump (accessory)

QF3 Heater module thermal overload solenoid switch

(not supplied)

IS1 Electric heater ON-OFF switch (not supplied)

B1 Humidistat (supplied with the humidifier, accessory)

RD Humidifier alarm signal (not supplied)

To carry out this connection, the fan must be recabled as shown above using the available cabling (A and B).

This new connection does not allow operation in “fan mode”

HWD - HWDE English 06/01 13

Electrical connection diagram, standard HWD unit with valve for main coil

6

HWD ELECTRICAL BOARD

5 7 8 9 10 U N

YV1

7 0

I S1

4 6

C

ST IS2

5 8

I S 3

9 3 2 1

I S 4

PTH2

QF2

PE U N

Electrical connection diagram, standard HWD unit with auxiliary water coil, valves and humidifier

HW D E L EC TR ICA L B OA RD

HUMIDIFIE R

ELECTRIC A L BOARD

HOT WATER

HEAT EXC ANGER

PURIFIER

6 5 7 8 9 10 U N

U N 1 2 3 4 1 2

14

KA1

YV1

7 0

I S1

4 6 5 8

IS3

9 3 2 1

C

ST IS2

IS4

P TH2

PTH2

QF2

R1

IS1

QF5

RD

IS2

Room thermostat

Internal unit protection switch

Heater coil

On/off switch

Humidifier protection switch

Alarm indicator light

Summer/winter selector

English 06/01

QF2

PE U N

QF1

QF4

FU1

IS3

Heater coil protection switch

Fuse

Automatic/manual selector

YV1 Main coil valve

KIT REC Electronic condensing control

IS4

KA1

Fan speed selector

Relay for humidifier/purifier control

QF5

2 1 3

KA1

RD

B1

YV2

MA X LOAD FOR

E X IT N 5 =3 A - 2 3 0V

KA1

QF6

ST

QF1

PR

KA2

B1

QF6

Temperature sensor

Assembly protection switch

Electrical heater reset button

Heater coil auxiliary relay

Humidistat

Purifier protection switch

HWD - HWDE

Electrical connection diagram, standard HWD unit with general electric heater, humidifier and valves on the main coil

HWD ELECTRIC AL BOARD

HUMIDIFIER

ELECTRIC AL BOARD

HEATER PURIFIER

6 5 7 8 9 10

K A1

YV1

7 0

IS1

4 6

C

ST IS2

5 8

IS3

9 3 2 1

I S4

PTH2

U N

QF2

U N 1 2 3 4 1 2

~

KA2

QF5

2 1 3

KA1

RD

R1

MAX LOAD FOR

EXIT N

° 5=3A-230V

B1

KA1

QF6

PE

U N

QF1

Electrical connection diagram, standard HWD unit with electric heater as standard, humidifier and valves on the main coil

HWD ELECTRIC AL BOARD

HUMIDIFIER

ELECTRIC AL BOARD

HEATER

ELECTRIC AL BOARD

PURIFIER

6 5 7 8 9 10

KA1

YV1 KA2

7 0

IS1

4 6

C

ST IS2

5 8

IS3

9 3 2 1

IS4

PTH2

U N

QF2

U N 1 2 3 4

2 1 3

KA1

RD

B1

QF5

U V W N

ON- OFF 0 - 10 Vdc

QF4

KA2

KA1

1 2

QF6

PTH2

QF2

R1

IS1

QF5

RD

IS2

Room thermostat

Internal unit protection switch

Heater coil

On/off switch

Humidifier protection switch

Alarm indicator light

Summer/winter selector

HWD - HWDE

QF4

FU1

IS3

Heater coil protection switch

Fuse

Automatic/manual selector

YV1 Main coil valve

KIT REC Electronic condensing control

IS4

KA1

Fan speed selector

Relay for humidifier/purifier control

PE U V W N

QF1

ST

QF1

PR

KA2

B1

QF6

Temperature sensor

Assembly protection switch

Electric heater reset button

Heater coil auxiliary relay

Humidistat

Purifier protection switch

English 06/01 15

GENERAL TECHNICAL DATA

I A

Size

Total cooling capacity (1)

Sensible cooling capacity (1)

Heat output (2)

Heating capacity supplementary coil (3)

Pressure drop standard coil (1)

Pressure drop auxiliary coil (3)

Max absorbed power

Absorbed current at nominal conditions

Current absorbed at maximum conditions

Number - diameter impellers

Rated air flow

Useful head (basic unit with filter)

Standard coil hydraulic connections

Auxiliary coil hydraulic connections

Weight

Dimension (A)

Dimension (B)

Dimension (C)

Sound pressure level minimum speed (4)

Sound pressure level speed average (4)

Sound pressure level speed maximum (4)

Electrical power supply

(1) Room temperature 27°C-50% R.H.; water in/out temperature 7/12°C

(2) Room temperature 20°C - 50% R.H.; water in/out temperature 45/40°C

41

900

690

295

47

50

53

2-160

1300

67

1/2”

1/2”

16

9

0,37

1,30

1,70

602

5,2

3,5

5,0

9,1 kW kW kW kW kPa kPa kW

A

A

N°-mm m 3 /h

Pa

Gas

Gas kg mm mm mm dB(A) dB(A) dB(A)

V-Ph-Hz

703

6,6

4,5

6,3

9,1

18

9

0,37

1,30

1,70

2-160

1300

65

1/2”

1/2”

43

900

690

295

47

50

53

803

8,5

5,8

7,4

11,8

19

14

0,44

1,55

1,70

2-160

1600

72

3/4”

1/2”

50

1050

690

295

48

52

56

230~50

904

10,2

6,9

9,3

11,8

15

14

0,44

1,55

1,70

2-160

1600

66

3/4”

1/2”

52

1050

690

295

49

53

57

(3) Room temperature 20°C - 50% RH; water in/out temperature 70/60°C

(4) Measurement to 1 m by the point of air outlet

2-200

2200

115

1”

1/2”

63

1250

750

315

53

55

59

26

13

0,90

2,30

3,30

1003

12,1

8,2

11,3

16,7

2-200

2500

89

1”

1/2”

65

1250

750

315

54

58

61

24

15

0,90

2,60

3,30

1104

15,8

10,7

14,5

18,0

16 English 06/01 HWD - HWDE

A

PERFORMANCE CURVES HWD - HWDE 602

FAN PERFORMANCE CURVES

140

130

120

110

100

90

80

70

60

50

40

30

20

10

0

600

167

700

194

800

222

C

M in

.

B

M ed

.

A

M ax

.

D

900

250

1000

278

1100

306

1200

333

1300

361

1400

389

1500

417

1600

444

1700

472

1800

500

1900

528

2000

556

2100

583

m

3

/h l/s

PERFORMANCE CURVES HWD - HWDE 703

140

130

120

110

100

90

80

70

60

50

40

30

20

10

0

600

167

700

194

800

222

C

M in

.

B

M ed

.

A

M ax

.

D

900

250

1000

278

1100

306

1200

333

1300

361

1400

389

1500

417

1600

444

1700

472

1800

500

1900

528

2000

556

2100

583

m 3 /h l/s

PERFORMANCE CURVES HWD - HWDE 803

140

130

120

110

100

90

80

70

60

50

40

30

20

10

0

600

167

700

194

800

222

C

M in.

B

M ed

.

A

Max

.

D

900

250

1000

278

1100

306

1200

333

1300

361

1400

389

1500

417

1600

444

1700

472

1800

500

1900

528

2000

556

2100

583

m 3 /h l/s

HWD - HWDE English 06/01 17

PERFORMANCE CURVES HWD - HWDE 904

130

120

110

100

90

80

70

60

50

40

30

20

10

0

600

167

700

194

800

222

C

M in

.

B

M ed

.

A

Max

.

D

900

250

1000

278

1100

306

1200

333

1300

361

1400

389

1500

417

1600

444

1700

472

1800

500

1900

528

2000

556

2100

583

m

3

/h l/s

PERFORMANCE CURVES HWD - HWDE 1003

320

300

280

260

240

220

200

180

160

140

120

100

80

60

40

20

0

400

111

600

167

C

M in.

B A

M ed

.

M ax.

D

800

222

1000

278

1200

333

1400

389

1600

444

1800

500

2000

556

2200

611

2400

667

2600

722

2800

778

3000

833

3200

889

3400

944

m

3

/h l/s

PERFORMANCE CURVES HWD - HWDE 1104

320

100

80

60

40

20

0

400

300

280

260

240

220

200

180

160

140

120

111

600

167

800

222

1000

278

1200

333

C

1400

389

M in.

1600

444

B

1800

500

M ed

.

A

2000

556

2200

611

Max

.

2400

667

2600

722

2800

778

D

3000

833

3200

889

3400

944

m

3

/h l/s

18 English 06/01 HWD - HWDE

I A

Maximum speed

COOLING PERFORMANCE

HWD - HWDE English 06/01 19

Maximum speed

20 English 06/01 HWD - HWDE

Maximum speed

HWD - HWDE English 06/01 21

HEATING PERFORMANCE

I A

Maximum speed

Size 602 Tai 0°C Tai 10°C Tai 15°C Tai 18°C Tai 20°C Tai 22°C

Twi Qw dPw Pt Tau Pt Tau Pt Tau Pt Tau Pt Tau Pt Tau

[˚C] [l/h] [kPa] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C]

40

45

50

60

70

80

460

890

1.760

460

890

1.760

460

890

1.760

660

950

1.500

670

880

1.230

460

670

1.090

4,2

16,0

62,5

8,8

18,2

45,4

9,0

15,6

30,5

4,2

9,0

24,0

4,2

16,0

62,5

4,2

16,0

62,5

8,7

10,1

11,0

11,5

12,4

13,1

13,6

14,3

15,0

14,3

15,6

16,9

6,9

8,0

8,8

7,8

9,1

9,9

21,5

24,9

27,2

28,5

30,5

32,4

33,6

35,3

37,1

35,3

38,6

41,9

17,0

19,8

21,7

19,3

22,4

24,5

7,0

8,1

8,8

9,6

10,3

10,9

11,7

12,3

12,9

12,5

13,7

14,8

5,2

6,0

6,6

6,1

7,1

7,7

27,2

30,0

31,8

33,8

35,5

37,0

38,8

40,3

41,8

40,9

43,8

46,7

22,8

24,9

26,3

25,0

27,4

29,1

6,1

7,1

7,7

8,7

9,3

9,8

10,7

11,2

11,8

11,6

12,7

13,8

4,3

5,0

5,5

5,2

6,1

6,6

30,1

32,5

34,1

36,5

37,9

39,3

41,4

42,8

44,1

43,7

46,4

49,0

25,7

27,4

28,6

27,9

30,0

31,3

5,6

6,5

7,1

8,1

8,7

9,2

10,1

10,6

11,2

1,1

12,1

13,1

3,8

4,4

4,8

4,7

5,4

6,0

31,8

34,0

35,5

38,0

39,4

40,7

43,0

44,3

45,6

45,4

48,0

50,5

27,4

28,9

30,0

29,6

31,5

32,7

5,2

6,1

6,6

7,7

8,2

8,7

9,7

10,2

10,7

10,7

11,7

12,7

3,5

4,0

4,4

4,3

5,0

5,5

32,9

35,0

36,4

39,1

40,4

41,6

44,0

45,3

46,5

46,5

49,0

51,4

28,5

29,9

30,9

30,7

32,5

33,6

4,9

5,7

6,2

7,3

7,8

8,3

9,3

9,8

10,3

10,4

11,3

12,3

3,1

3,6

4,0

4,0

4,6

5,1

34,1

36,0

37,3

40,1

41,4

42,5

45,1

46,3

47,4

47,7

50,0

52,4

29,7

30,9

31,8

31,9

33,5

34,5

Size 703 Tai 0°C Tai 10°C Tai 15°C Tai 18°C Tai 20°C Tai 22°C

Twi Qw dPw Pt Tau Pt Tau Pt Tau Pt Tau Pt Tau Pt Tau

[˚C] [l/h] [kPa] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C]

40

45

50

60

70

80

610

1.140

2.240

610

1.140

2.240

610

1.140

2.240

840

1.180

1.870

840

1.100

1.530

580

850

1.370

5,1

18,0

69,5

5,1

18,0

69,5

5,1

18,0

69,5

9,7

19,2

48,4

9,7

16,7

32,4

4,6

10,0

26,0

8,8

10,1

11,0

10,0

11,4

12,4

11,1

12,7

13,8

14,5

15,4

16,3

17,1

17,9

18,7

18,0

19,7

21,2

21,7

24,9

27,1

24,6

28,1

30,6

27,5

31,3

34,0

35,9

38,2

40,4

42,2

44,2

46,3

44,5

48,6

52,4

9,6

8,9

10,1

11,0

12,1

12,9

13,6

14,6

6,6

7,6

8,2

7,8

8,9

15,4

16,1

15,8

17,2

18,5

26,3

28,7

30,3

29,2

31,9

33,8

32,0

35,1

37,2

40,0

41,8

43,7

46,2

47,9

49,7

49,0

52,5

55,8

8,2

7,8

8,9

9,6

10,9

11,6

12,3

13,4

5,5

6,3

6,9

6,7

7,6

14,1

14,7

14,7

16,0

17,2

28,6

30,6

31,9

31,4

33,8

35,4

34,2

36,9

38,8

42,0

43,7

45,3

48,2

49,8

51,4

51,2

54,5

57,6

7,4

7,1

8,1

8,8

10,2

10,8

11,4

12,7

4,9

5,6

6,0

6,0

6,8

13,3

13,9

14,0

15,3

16,4

30,0

31,7

32,9

32,8

34,9

36,3

35,6

38,1

39,8

43,2

44,8

46,3

49,4

50,9

52,4

52,6

55,7

58,6

6,9

6,7

7,6

8,3

9,7

10,3

10,9

12,2

4,4

5,0

5,5

5,6

6,3

12,8

13,4

13,5

14,8

15,9

30,9

32,5

3,6

33,7

35,7

37,0

36,5

38,8

40,4

44,0

45,5

46,9

50,2

51,6

53,1

53,5

56,5

59,3

6,3

6,2

7,1

7,7

9,2

9,8

10,4

11,7

4,0

4,5

4,9

5,1

5,8

12,3

12,8

13,1

14,3

15,4

31,8

33,2

34,2

34,6

36,4

37,6

37,4

39,6

41,1

44,8

46,2

47,6

51,0

52,4

53,7

54,3

57,3

60,0

Size 803 Tai 0°C Tai 10°C Tai 15°C Tai 18°C Tai 20°C Tai 22°C

Twi Qw dPw Pt Tau Pt Tau Pt Tau Pt Tau Pt Tau Pt Tau

[˚C] [l/h] [kPa] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C]

40

45

50

60

70

80

1.370

2.190

960

1.270

1.790

660

970

1.590

760

1.470

2,920

760

1.470

2.920

760

1.470

2.920

950

Pt: heat output

Tai: air intake temperature

16,5

42,1

8,1

14,1

28,1

3,8

8,2

22,2

5,0

19,0

74,9

5,0

19,0

74,9

5,0

19,0

74,9

7,9

10,2

11,8

13,0

11,5

13,4

14,6

12,9

14,9

16,3

16,6

17,9

19,1

19,5

20,7

21,8

20,4

22,5

24,6

18,9

21,9

24,0

21,4

24,8

27,1

23,9

27,6

30,2

30,7

33,1

35,4

36,2

38,3

40,4

37,8

41,8

45,7

14,9

15,9

16,8

17,7

18,7

17,9

19,7

21,6

7,6

8,9

9,7

9,0

10,4

11,4

10,3

11,9

13,0

13,8

37,6

39,5

41,1

42,9

44,7

43,1

46,6

50,0

24,2

26,5

28,0

26,7

29,3

31,1

29,1

32,1

34,1

35,6

Twi: water intake temperature

Qw: flow rate of water at coil

COOLING/HEATING CAPACITY CORRECTION FACTOR

6,4

7,4

8,1

7,7

8,9

9,8

9,0

10,4

11,4

12,5

13,4

14,3

15,4

16,3

17,1

16,6

18,3

20,0

39,9

41,6

43,5

45,1

46,8

45,8

49,0

52,1

26,8

28,7

30,0

29,3

31,6

3,1

31,7

34,3

36,1

38,1

12,5

13,4

14,5

15,4

16,2

15,8

17,5

19,1

5,6

6,5

7,1

6,9

8,0

8,8

8,3

9,5

10,4

11,6

41,2

42,8

4,9

46,5

48,1

47,4

50,4

53,4

28,4

30,1

31,2

30,9

32,9

34,3

33,3

35,7

37,3

39,6

Tau: air outlet temperature dpw: pressure drop water side

5,1

5,9

6,5

6,4

7,4

8,1

7,7

8,9

9,8

11,1

11,9

12,7

14,0

14,8

15,6

15,3

16,9

18,5

42,1

43,6

45,9

47,4

48,9

48,4

51,4

54,3

29,5

31,0

32,0

31,9

33,8

35,1

34,3

36,6

38,1

40,6

Data refer to rated conditions.

11,3

12,1

13,4

14,2

15,0

14,8

16,4

17,9

4,6

5,3

5,8

5,9

6,8

7,5

7,2

8,4

9,1

10,5

Max speed: 1,0 Medium speed: 0,85 Minimum speed: 0,76

43,0

44,4

46,9

48,3

49,7

49,5

52,3

55,1

30,5

31,9

32,8

33,0

34,7

35,9

35,4

37,5

38,9

41,5

22 English 06/01 HWD - HWDE

Size 904 Tai 0°C Tai 10°C Tai 15°C Tai 18°C Tai 20°C Tai 22°C

Twi Qw dPw Pt Tau Pt Tau Pt Tau Pt Tau Pt Tau Pt Tau

[˚C] [l/h] [kPa] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C]

40

45

50

60

70

80

1.000

1.760

3.400

1.000

1.760

3.400

1.000

1.760

3.400

1.220

1.720

2.720

1.230

1.600

2.230

850

1.230

1.990

6,7

21,0

78,3

10,0

20,0

50,1

10,2

17,3

33,7

4,9

10,2

26,8

6,7

21,0

78,3

6,7

21,0

78,3

16,7

18,6

20,0

21,2

22,5

23,7

24,9

26,1

27,2

26,4

28,6

30,8

13,2

14,8

16,0

15,0

16,7

18,0

31,0

34,5

37,1

39,3

41,7

44,0

46,2

48,3

50,4

48,9

53,1

57,1

24,5

27,5

29,6

27,8

31,0

33,4

13,4

14,9

16,0

17,7

18,8

19,8

21,4

22,4

23,3

23,1

25,1

27,0

10,0

11,1

12,0

11,7

13,0

14,0

34,8

37,6

39,7

42,8

44,8

46,7

49,6

51,4

53,2

52,8

56,5

60,0

28,4

30,6

32,2

31,6

34,1

36,0

11,7

13,0

14,0

15,9

16,9

17,8

19,6

20,5

21,4

21,5

23,3

25,1

8,3

9,3

10,0

10,0

11,2

12,0

36,7

39,2

41,0

44,5

46,3

48,0

51,3

53,0

54,7

54,8

58,2

31,4

30,4

32,2

33,5

33,6

35,7

37,3

10,7

11,9

12,8

14,9

15,8

16,6

18,5

19,4

20,2

20,5

22,2

23,9

7,3

8,2

8,8

9,0

10,1

10,8

37,9

40,1

41,8

45,6

47,2

48,8

52,4

53,9

55,5

56,0

59,2

62,3

31,6

33,1

34,3

34,7

36,6

38,0

10,0

1,2

12,0

14,2

15,0

15,8

17,8

18,6

19,5

19,8

21,5

23,1

6,6

7,4

8,0

8,4

9,3

10,0

38,6

40,7

42,3

46,3

47,8

49,3

53,1

54,6

56,1

56,7

59,9

62,9

32,3

33,7

34,8

35,5

37,3

38,5

9,4

10,4

11,2

13,5

14,3

15,0

17,1

17,9

18,7

19,2

20,8

22,4

6,0

6,7

7,2

7,7

8,6

9,2

39,4

41,3

42,8

47,0

48,4

49,9

53,7

55,2

56,6

57,5

60,6

63,4

33,1

34,4

35,3

36,3

37,9

39,1

Size 1003 Tai 0°C Tai 10°C Tai 15°C Tai 18°C Tai 20°C Tai 22°C

Twi Qw dPw Pt Tau Pt Tau Pt Tau Pt Tau Pt Tau Pt Tau

[˚C] [l/h] [kPa] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C]

40

45

50

60

70

80

1.150

2.080

9,7

32,0

4.060

121,9

1.150

2.080

9,7

32,0

4.060

121,9

1.150

9,7

2.080

32,0

4.060

121,9

1.470

2.090

3.310

1.480

15,9

32,3

81,0

16,2

1.940

2,710

1.030

1.490

2.410

27,8

54,3

7,8

16,4

42,9

15,8

17,9

19,4

17,9

20,2

21,9

20,0

22,5

24,4

25,6

27,3

28,9

30,1

31,6

33,1

31,8

34,7

37,4

21,3

24,1

26,2

24,1

27,3

29,5

27,0

30,3

32,8

34,5

36,8

38,9

40,6

42,6

44,6

42,9

46,7

50,4

11,9

13,4

14,6

13,9

15,7

17,0

16,0

18,0

19,5

21,4

22,8

24,1

25,8

27,1

28,4

27,9

30,4

32,7

26,0

28,1

29,6

28,8

31,2

33,0

31,6

34,3

36,3

38,8

40,7

42,4

44,8

46,5

48,2

47,6

50,9

54,1

9,9

11,2

12,1

12,0

13,5

14,6

14,0

15,8

17,1

19,3

20,5

21,7

23,7

24,9

26,0

25,9

28,2

30,4

28,4

30,1

31,4

31,1

33,2

34,7

33,9

36,2

38,0

41,0

42,6

44,2

46,9

48,5

50,0

49,9

53,0

56,0

8,7

9,9

10,7

10,8

12,2

13,1

12,8

14,4

15,6

18,0

19,1

20,2

22,4

23,5

24,6

24,7

26,9

29,0

29,8

31,3

32,4

32,5

34,4

35,7

35,2

37,4

39,0

42,2

43,8

45,2

48,2

49,7

51,1

51,3

54,3

57,1

7,9

9,0

9,7

10,0

11,3

12,2

12,0

13,5

14,6

17,1

18,2

19,3

21,6

22,6

23,6

23,9

26,0

28,1

30,7

32,1

33,1

33,5

35,2

36,4

36,2

38,2

39,7

43,1

44,6

46,0

49,0

50,5

51,9

52,3

55,1

57,8

7,1

8,1

8,7

9,2

10,4

11,2

11,2

12,6

13,7

16,3

17,3

18,3

20,7

21,7

22,7

23,1

25,2

27,1

31,6

32,9

33,8

34,4

36,0

37,1

37,1

39,0

40,4

44,0

45,3

46,7

49,9

51,2

52,6

53,2

55,9

58,6

Size 1104 Tai 0°C Tai 10°C Tai 15°C Tai 18°C Tai 20°C Tai 22°C

Twi Qw dPw Pt Tau Pt Tau Pt Tau Pt Tau Pt Tau Pt Tau

[˚C] [l/h] [kPa] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C] [kW] [˚C]

40

45

50

60

70

80

2.680

4.260

1.910

2.500

3.490

1.320

1.920

3.100

1.500

2.720

10,3

34,0

5.290

128,6

1.500

10,3

2.720

34,0

5.290

128,6

1.500

2,720

10,3

34,0

5.290

128,6

1.890

16,4

33,0

83,4

16,7

28,7

55,9

8,0

16,9

44,1

Pt: heat output

Tai: air intake temperature

20,3

23,1

25,0

23,0

26,0

28,2

25,7

29,0

31,3

32,9

35,1

37,1

38,8

40,7

42,5

40,9

44,6

48,1

23,2

26,3

28,5

26,3

29,7

32,1

29,4

33,1

35,7

37,6

40,0

42,4

44,2

46,4

48,5

46,6

50,9

54,9

29,3

30,9

33,2

34,9

36,5

35,8

39,1

42,1

15,3

17,3

18,7

18,0

20,3

21,9

20,6

23,2

25,1

27,5

43,4

45,3

47,9

49,8

51,6

50,9

54,6

58,0

27,4

29,7

31,4

30,5

33,1

35,0

33,5

36,5

38,6

41,4

Twi: water intake temperature

Qw: flow rate of water at coil

COOLING/HEATING CAPACITY CORRECTION FACTOR

12,8

14,4

15,6

15,4

17,4

18,8

18,0

20,3

22,0

24,8

26,3

27,9

30,5

32,0

33,4

33,3

36,3

39,1

45,0

46,8

49,8

51,5

53,1

53,0

56,4

59,6

29,6

31,5

32,8

32,6

34,8

36,4

35,6

38,2

40,0

43,2

24,6

26,0

28,8

30,2

31,6

31,8

34,6

37,3

11,2

12,7

13,7

13,9

15,7

16,9

16,5

18,6

20,1

23,1

46,0

47,7

50,9

52,5

54,1

54,2

57,5

60,6

30,8

32,5

33,7

33,8

35,9

37,3

36,8

39,2

40,9

44,4

Tau: air outlet temperature dpw: pressure drop water side

10,2

11,5

12,5

12,9

14,5

15,7

15,5

17,4

18,8

22,0

23,4

24,8

27,7

29,1

30,4

30,7

33,5

36,1

46,7

48,2

51,6

53,2

54,7

55,1

58,2

61,2

31,7

33,2

34,3

34,7

36,5

37,9

37,6

39,9

41,5

45,1

Data refer to rated conditions.

22,2

23,5

26,6

27,9

29,2

29,7

32,4

34,9

9,2

10,4

11,3

11,8

13,3

14,4

14,4

16,3

17,6

20,9

Max speed: 1,0 Medium speed: 0,85 Minimum speed: 0,76

47,4

48,8

52,4

53,8

55,3

55,9

58,9

61,8

32,5

33,9

34,8

35,5

37,2

38,4

38,4

40,5

42,0

45,9

HWD - HWDE English 06/01 23

ACCESSORIES

LAYOUT OF ACCESSORIES

I

P

X

8 7 6 5 1 4 10 9 3 2

A

R H H

G E F F

1 ductable unit

2 two way intake plenum with winter damper (fitted inside unit)

Size

602 - 703

803 - 904

1003 -1104

3 intake plenum

4 auxiliary water coil for heating

5 electric heater module

6 humidifier module

7 discharge plenum

8 discharge plenum for round ducting

A B C D E F

Dimensions

G H øL

820 820 255 255 280 200 170 285 160

1050 945 255 285 280 200 170 285 160

1050 1050 305 305 330 200 170 330 200

N

4

4

4

9 air purification module

10 activated carbon filter

X P

254 295

254 295

267 314

Y

77

77

89

Q R

149 350

149 350

157 350

INSTALLING ACCESSORIES

All modules are supplied ready for fixing to the discharge and intake flange of the basic unit, another module or directly to the ducting.

Always include the gasket supplied between one module and another.

TWO WAY INTAKE PLENUM WITH DAMPER

The two way intake plenum with damper enables the room air intake duct and the external air intake duct to be connected when required by the installation.

Regulation is via a manual damper that may be motorised

40

A

D B

Fit a grid protecting the impellers if accessories are not mounted.

Note: if the humidifier module is connected directly to the discharge, remove the lower part of the duct rim.

following removal of the manual hand wheel (the motorised control is not provided). The cross section of the external air intake duct is 25% the total cross section.

24 English 06/01

C

Size

602- 703

Amm Bmm Cmm Dmm Emm Hmm

820 280 225 775 210 255

803 - 904 945 285 205 1000 240 285

1003 -1104 1050 330 225 1000 260 305

HWD - HWDE

AIR PURIFICATION MODULE

The air purification model effectively controls all the main causes of pollution, making the air healthier. The module consists of:

- a pre-filter to eliminate the largest particles;;

- an electrostatic filter to remove the remaining impurities suspended in the air;

30

A

D B

- an activated carbon filter (optional), which can be inserted in the module;

- the module is powered and controlled directly from the electronic board and functions only when the fan is on for the HWDE, and independent from yet slave to the operation of the fan for the HWD.

Size

602 - 703

Amm Bmm Dmm Emm Hmm

820 350 775 210 255

803 - 904 945 350 1000 240 285

1003 - 1104 1047 350 1000 267 305

AUXILIARY WATER COIL

The water coil module for winter heating is used in combination with a boiler. The module can be mounted using either right hand or left hand connections. The coil is fitted with special valves for venting the air or draining the water in the coil when not in use or to prevent freezing. The water coil module may be fitted with an ON/OFF or modulating regulating valve for the HWDE and ON/OFF only for the HWD.

The valve is controlled directly by the electronic board with a 0-10V signal for the HWDE, or directly by the PTH2 room thermostat for the HWD.

The BT3 sensor supplied as standard in the module acts as a minimum thermostat. It must be connected according to the diagrams on pages 12-13 and placed in the special sensor holder, only for the HWDE.

A

H

B

Size

602 - 703

Amm

890

Hmm

270

803 - 904 1040 270

1003 - 1104 1240 320

Bmm

50

50

50

Attacchi Gas

1/2

1/2

1/2

ELECTRIC HEATER MODULE

The electric heater module is supplied for winter heating as an alternative to the auxiliary hot water coil.

The maximum outputs available with 230V~50 are 3.0 kW for sizes 602-703-803-904, and 4.5 kW for sizes 1003-

1104. The outputs available with 400V-3+N~50 are 3.0 kW for sizes 602-703-803-904 and 4.5 kW for sizes 1003-1104.

90

A

D B1

The module must be installed downstream of the basic unit directly in the outflow of air. The stainless steel spiral heaters are mounted on a removable frame independent from the module.The heaters feature ON-OFF operation.

Size

602 - 703

A mm B1 mm D mm E mm H mm

820 200 775 210 255

803 - 904 1050 200 1000 210 255

1003 - 1104 1050 200 1000 260 305

Note: For correct operation of the heaters, air flow should not drop below the values for minimum speed.

HWD - HWDE English 06/01 25

HUMIDIFIER MODULE

The humidifier module increases air humidity by emitting water vapour into the atmosphere. It consists of a stainless steel water pan with power and control switchboard, electric heater with safety thermostat, level sensor, solenoid valve, water filling assembly, overflow pipe and seasonal drain valve.

If used with particularly hard water, a water softener should be used.

The quantity of steam produced at maximum speed with an installed electrical power of 1,500 W depends on the model (see table below). The humidifier module should be installed downstream of the basic unit (and always downstream of the electric heater module).

The humidifier module includes a humidistat to control the humidity of the room.

The humidifier module also incorporates a 10 mm ext. diam. copper connection (1) for filling the pan with water complete with cock and solenoid valve, a 10 mm ext. diam.

copper connection (2) for seasonal draining of the pan complete with cock and a 20 mm int. diam. rubber connection (3) for the overflow pipe.

To guarantee full efficiency of the overflow pipe, the feed pressure should not exceed 2 bars and the pipe should have a minimum internal diameter of 20 mm.

90

A

D B1

Øe1 Øe2 Øi3

Size

602 - 703

803 -904

1003 - 1104

g/h steam g steam/kg of air

2390

2390

2390

1,7

1,6

1,2

Size

A mm B1mm D mm E mm H mm

602 - 703 820 200 775 210 255

803 - 904 1050 200 1000 210 255

1003 - 1104 1050 200 1000 260 305

Size

602 ÷ 904

Øe1

10

1003 - 1104 10

Øe2

10

10

Øi3

20

20

DISCHARGE (AND INTAKE) PLENUM

The discharge and intake plenum is supplied when the incoming or outgoing air flow must be directed to or from the bottom of the unit.

A

D B

11

It has a flange for connection to the basic unit or other accessories and blanked panels for optimum and flexible use.

F2

11

Discharge and intake plenum (only 602-703-1003-1104)

Size

602 -703

803 -904

1003 - 1104

A

820

1050

1050

B

280

280

330

D

775

1000

1000

Intake plenum 803 -904

Size

803 -904

A

945

B

285

D

900

11

E

Dimensions

F1

210

210

260

160

160

210

E

Dimensions

F1

240 180

F2

723

950

950

F2

837

F3

230

225

275

F3

225

H

255

255

305

H

285

11

26 English 06/01 HWD - HWDE

DISCHARGE PLENUM FOR ROUND DUCTING

The discharge plenum for round ducting enables the air to be distributed through flexible ducts. Distribution takes place through four 160 mm diam. ducts in sizes 602-703-803-904 and four 200 mm diam. ducts in sizes 1003-1104.

A

D B

The number of ducts is calculated so as to obtain an air speed of 5.0 m/s in the ducts with rated air flow and the ducts fully open.

Size

602 - 703

Amm Bmm Dmm Emm Hmm ØCmm

820 170 775 210 255 160 4

803 - 904 1050 170 1000 210 255 160

1003 - 1104 1050 170 1000 260 305 200

4

4

N

°

WEIGHT OF ACCESSORIES

Module

Two way intake plenum with damper

Air purifier

Auxiliary water coil

Electric heater humidifier

Intake/discharge plenum

(only 1003-1104)

Intake plenum

Discharge plenum for round ducting

Size

602-703 / 803-904

1003-1104

602-703 / 803-904

1003-1104

602-703 / 803-904

1003-1104

602-703 / 803-904

1003-1104

602-703 / 803-904

1003-1104

602-703 / 803-904

1003-1104

803-904

602-703 / 803-904

1003-1104

Gross weight kg

10,7/13

15

15 / 20

23,5

3,7/4,5

5,5

9,5/11

12

10,8/13

13,5

8,4/10

11,5

10

5,7/6,5

7

Net weight kg

8,7/11

12

13,3 / 17,3

20,5

3,0/3,8

4,8

7,5/9

9,5

8,6/10,8

11

6,2/7,8

9

7,8

3,5/4,3

4,7

HWD - HWDE English 06/01 27

HEAT OUTPUT OF AUXILIARY COIL

I A

Size 602-703

Tai: -5°C

Twi Q

∆Pw

°C l/h kPa

60

70

80

470

600

770

470

600

770

470

600

770

9,1

15

5,6

9,1

15

5,6

9,1

15

5,6

Pt

Tai: 0°C

Tau kW °C

9,3

9,6

10,0

12,1

13,0

13,7

14,4

15,6

46,8

17,2

18,0

18,9

23,9

26,1

27,8

29,4

32,3

35,2

Pt

Tai:10°C

Tau kW °C

8,7

8,9

9,4

11,3

12,2

12,7

13,4

14,6

15,7

20,1

21,3

22,5

27,0

29,2

30,4

32,0

34,9

37,5

Pt

Tai:15°C

Tau kW °C

7,4

7,7

8,0

9,7

10,5

10,9

11,5

12,5

13,5

27,7

28,4

29,1

33,2

35,1

36,1

37,5

39,9

42,3

Tai: 20°C

Pt Tau kW °C

6,8

7,0

7,4

8,9

9,6

10,0

10,6

11,4

12,3

31,6

31,7

32,7

36,3

38,0

38,9

40,3

42,3

44,4

Tai: 22°C

Pt Tau kW °C

6,2

6,4

6,7

8,1

8,70

9,10

9,6

10,4

11,2

34,8

35,3

36,0

39,4

40,8

41,8

43,0

44,9

46,8

Pt kW

5,9

6,1

6,4

7,8

8,3

8,7

9,2

9,9

10,7

Tau

°C

36,1

36,6

37,3

40,7

41,8

42,8

44,0

45,7

47,6

Size 803-904

Tai: -5°C

Twi Q

∆Pw

°C l/h kPa

60

70

80

55,0

750

1015

550

750

1015

550

750

1015

8

14

26

8

14

26

8

14

26

Pt

Tai: 0°C

Tau kW °C

12,0

12,9

13,6

14,9

16,2

17,7

18,4

19,5

22,0

16,5

18,1

18,4

21,7

24,1

26,7

28,0

30,0

34,5

Pt

Tai:10°C

Tau kW °C

11,2

12,0

12,8

13,8

15,1

16,5

17,2

18,2

20,6

20,1

21,5

23,0

24,7

27,1

29,6

30,8

32,6

36,9

Pt

Tai:15°C

Tau kW °C

9,6

10,3

10,9

11,9

13,0

14,2

14,8

15,6

17,6

27,2

28,5

29,5

31,3

33,3

35,5

36,5

38,8

41,6

Tai: 20°C

Pt Tau kW °C

8,8

9,5

10,0

10,9

11,9

13,0

13,5

14,3

16,2

30,8

32,0

32,9

34,5

36,3

38,3

39,2

40,6

44,1

Tai: 22°C

Pt Tau kW °C

8,0

8,6

9,1

9,9

10,8

11,8

12,3

13,0

14,7

34,3

35,4

35,8

37,2

39,4

41,0

42,1

43,3

16,4

Pt kW

7,7

8,3

8,8

9,5

10,4

11,3

11,7

12,5

14,1

Tau

°C

35,8

36,9

37,8

39,0

40,7

42,3

43,0

44,0

47,3

Size 1003

Twi Q

°C l/h

60

70

80

890

1110

1440

890

1110

1440

890

1110

1440

∆Pw kPa

16

26

10

16

26

10

16

26

10

Pt

Tai: -5°C

Tau kW °C

19,2

20,0

20,7

22,3

23,1

23,9

25,3

26,3

27,2

21,5

22,1

23,1

25,3

26,4

27,5

29,4

30,7

31,9

Pt

Tai: 0°C

Tau kW °C

17,8

18,5

19,2

20,8

21,7

22,4

23,9

24,8

25,7

24,2

25,2

26,1

28,4

29,5

30,5

32,5

33,8

34,9

Pt

Tai:10°C

Tau kW °C

15,1

15,6

16,1

18,0

18,7

19,4

21,1

21,9

22,7

30,3

31,2

31,9

34,5

35,5

36,4

38,7

39,8

40,8

Pt

Tai:15°C

Tau kW °C

13,5

14,1

14,6

16,6

17,3

17,9

19,7

20,4

21,2

33,4

34,1

34,8

37,6

38,4

39,3

41,7

42,8

43,7

Tai: 20°C

Pt Tau kW °C

12,1

12,6

13,0

15,2

15,8

16,7

18,3

19,0

19,6

36,4

37,1

37,7

40,6

41,4

42,2

44,8

45,7

46,6

Tai: 22°C

Pt Tau kW °C

11,5

11,9

12,4

14,6

15,1

15,7

17,7

18,4

19,0

37,6

38,2

38,8

41,8

42,6

43,3

46,0

46,9

47,8

Size 1104

Twi Q

°C l/h

60

70

80

960

1195

1540

960

1195

1540

960

1195

1540

Twi: water intake temperature

Q: water flow-rate

∆Pw: pressure drop water side

∆Pw kPa

18

30

12

18

30

12

18

30

12

Pt

Tai: -5°C

Tau kW °C

20,7

21,5

22,2

24,0

24,9

25,8

27,2

28,3

29,3

19,7

20,7

21,6

23,7

24,8

25,8

27,6

28,8

30,0

Pt

Tai: 0°C

Tau kW °C

19,4

19,9

20,5

22,5

23,3

24,2

25,8

26,7

27,7

22,9

23,8

24,5

26,9

27,9

28,9

30,8

32,0

33,1

Pt: heat output

Tau: air outflow temperature

Tai: air intake temperature

Pt

Tai:10°C

Tau kW °C

16,1

16,8

17,4

19,4

20,2

20,9

22,7

23,6

24,4

29,3

30,0

30,8

33,2

34,1

35,0

37,2

38,2

39,2

Pt

Tai:15°C

Tau kW °C

14,6

15,1

15,7

17,9

18,6

19,2

21,2

22,0

22,8

32,4

33,1

33,8

36,4

37,2

38,0

40,3

41,3

42,2

Tai: 20°C

Pt Tau kW °C

13,0

13,6

14,1

16,3

17,0

18,0

19,7

20,4

21,2

35,5

36,2

36,8

39,5

40,0

41,1

43,5

44,4

45,3

Tai: 22°C

Pt kW

12,4

12,9

13,4

15,7

16,3

16,9

19,0

19,8

20,5

Tau

°C

36,8

37,4

37,9

40,8

41,5

42,2

44,7

45,6

46,4

The area enclosed by the dotted line refers to industrial type operating conditions.

Data refer to rated conditions.

28 English 06/01 HWD - HWDE

I A

PRESSURE DROP ACCESSORIES

PRESSURE DROP AIR SIDE AUXILIARY COIL

Size

602-703

Size

803-904

Size

1003

Size

1104

Q air m 3 /h

∆pa (Pa)

Q air m 3 /h

∆pa (Pa)

Q air m 3 /h

∆pa (Pa)

Q air m 3 /h

∆pa (Pa)

1100

12

1200

10

1800

10

2200

16

1200

14

1300

12

1900

12

2300

17

1300

17

1400

14

2000

13

2400

19

1400

19

1500

17

2100

14

2500

20

1500

22

1600

19

2200

16

2600

22

1600

26

1700

22

2300

19

2800

26

PRESSURE DROP AIR SIDE TWO WAY INTAKE MODULE

Size

602-703

803-904

1003

1104

Q air m3/h

∆pa (Pa)

∆pa (Pa)

∆pa (Pa)

∆pa (Pa)

1100 1200

10,5

-

-

-

13,0

4,0

-

-

1300 1400 1600 1800 2000 2200 2400 2500 2800

15,0

5,5

-

-

17,5

7,5

-

-

22,5

10,0

6,0

-

28,0

12,5

7,5

7,5

-

-

9,5

9,5

-

-

11,5

11,5

-

-

14,0

14,0

-

-

-

15,0

-

-

-

19,0

Note: Damper in 45° position

PRESSURE DROP AIR SIDE DISCHARGE PLENUM FOR ROUND DUCTING

Size

602-703

803-904

1003

1104

Q air m3/h

∆pa (Pa)

∆pa (Pa)

∆pa (Pa)

∆pa (Pa)

1100 1200

11,5

-

-

-

13,5

9,5

-

-

1300 1400 1600 1800 2000 2200 2400 2500 2800

16,0

13,5

-

-

18,5

18,0

11,0

-

24,0

24,0

14,0

-

30,5

30,0

18,0

18,0

-

-

22,0

22,0

-

-

26,0

26,0

-

-

31,0

31,0

-

-

-

34,0

-

-

-

43,0

Note: Ducts fully open

PRESSURE DROP AIR SIDE ELECTRIC RESISTOR MODULE

Size

602-703

Size

803-904

1003

1104

Q air m3/h

∆pa (Pa)

Q air m3/h

∆pa (Pa)

∆pa (Pa)

∆pa (Pa)

900

3,5

1200

2,0

-

-

1000 1100 1200 1300 1400 1500 1600 1700 1800

4,0

1300 1400 1600 1800 2000 2200 2400 2500 2800

3,0

-

-

5,0

4,0

3,0

-

6,0

5,0

3,5

3,5

7,0

6,0

4,5

4,5

8,0

-

5,5

5,5

9,3

-

7,0

7,0

10,5

-

8,0

8,0

12,0

-

-

9,0

13,4

-

-

11,5

OPERATING LIMITS

Cooling (°C)

Heating (°C) main coil

Heating (°C) auxiliary coil

Max. water intake temperature

Min. water intake temperature

Max. water intake temperature

Min. water intake temperature

Max. water intake temperature

Min. water intake temperature

16,5

1 (3)

80 (1)

30

80 (1)

30

Hydraulic circuit pressure min-max (bar)

1÷3 (2)

Max. storage temperature (°C)

63

(1) With room temperature of +22˚C

(2) For humidifier module, max. pressure = 2 bars

(3) Minimum working temperature depends on the thermal carrier used.

If operation of the unit has to be guaranteed with water temperatures of less than 1˚C or stopping of the unit at room temperatures of less than 1˚C, ethylene glycol must be added to the fluid in the hydraulic circuit in sufficient quantities to avoid freezing.

HWD - HWDE English 06/01 29

RECEIVER PANEL HWDE

The receiver panel dialogues with the main unit board, communicating the operating modes received from the infrared remote control unit.

It thus acts as receiver, machine status indicator through the three LEDs present and, via the SW1 button, emergency panel should the remote control unit be unusable.

To interpret the LED messages, see page 33.

76 39,5

I A

For access to the SW1 button (8), remove the protective glass by levering the tab with an implement and at the same time lifting it as shown in the figure.

4 5 6 7 8

1

2

3

4

Receiver panel base

Receiver panel cover

Glass

Infrared receiver

1 2

5

6

7

8

Red LED

Yellow LED

Green LED

SW1 emergency button

3

ACCESS TO THE POWER TERMINAL BOARD AND FIXING HOLES

This operation should be carried out only when there is no and detach it from the base of the receiver panel as shown power to the unit.

To access the power terminal board, remove the cover of the receiver panel without removing the protective glass.

To remove the cover, undo the fixing screws, lift the cover in the figure.

To fix to the wall, use the anchor screws provided.

24 23 22 21 20 19 18 17

17

18

19

20

21

22

23

24

Input button SW1

Control LED DL1 GREEN

Control LED DL2 YELLOW

Control LED DL3 RED

Earth

+RS485 x IR

-RS 485 x IR

Power supply +5Vdc

11 46,5 18,5

Note: when cabling or fixing to the wall, take care not to damage the receiver board.

30 English 06/01 HWD - HWDE

12

13

14

8

9

10

11

15

U I A

DESCRIPTION OF REMOTE CONTROL UNIT

5

6

7

1

2

3

4

1 ON/OFF button

- When on, the operating mode is displayed;

- When off, the clock is displayed.

2 Mode button

Selects the various operating modes:

Cool, Heat, Fan, Dry, Full Auto.

3 Fan button

When not in Full Auto or Sleep mode, five different fan speeds can be selected: minimum, medium, maximum, automatic and silent.

4 Room temperature button

Displays room temperature for five seconds

5 Sleep button

Activates or deactivates the sleep function with “silent” fan speed (the

Sleep function can be set for a maximum duration of seven hours)

6 Ionising button

If enabled, activates or deactivates the air purification mode.

7 Cancel button

Deactivates the timer (On/Off) function previously selected.

8/9 Temperature Up/Down buttons

Changes the temperature set point of the mode displayed.

10 Set button

Activates the timer (On/Off) function

11/12 Timer On/Off buttons

Sets the automatic on/off function (On/Off)

13/14 Times Up/Down buttons

Modifies the timer or clock setting.

15 Reset button (protected access)

Cancels all settings and resets to default values

D

E

F

A

B

C

HWD - HWDE

G

H

I

THE DISPLAY

When the air conditioner is turned on, all symbols are displayed. When it is turned off, only the clock remains.

A

Transmission: displays the successful transmission of an instruction to the reception panel which confirms it with three short flashes of the LEDs in succession.

B

Function symbols: conditioning, dehumidifying, ventilation, heating,

Full Auto and ionising.

C

Room temperature: displays room temperature.

D

Fan speed: displays the various speeds: minimum, medium, maximum, automatic and silent.

E

Timer on/off: displays the on/off times programmed.

F

Sleep function button: displays the night function and the programmed time.

G Replace coils indication.

H

Temperature set: displays the temperature set.

I

Clock: displays the clock.

English 06/01 31

CONTROL BOARD OPERATING MODES

The logic for the various operating modes is as follows:

Cooling with valve

According to room temperature, commands opening of the main coil four-way valve and according to the temperature of the coil (cool start), starting up of the fan.

The valve command is given directly by the electronic board with a 0-10V signal coming from terminals 37 and

38, either ON-OFF (DIP SWITCH 2 ON) or proportional

(DIP SWITCH 2 OFF). Fan speed can be selected from automatic or the four manual speeds.

Heating with valve (standard unit)

According to room temperature, commands opening of the main coil four-way valve and according to the temperature of the coil (hot start), starting up of the fan.The valve command is given directly by the electronic board with a 0-10V signal coming from terminals 37 and 38, either ON-OFF

(DIP SWITCH 2 ON) or proportional (DIP SWITCH 2

OFF). Fan speed can be selected from automatic or the four manual speeds.

U I A

Full auto

In this mode the unit operates in automatic. The microprocessor analyses room temperature and, according to a precise algorithm, selects from the modes available the most appropriate function to achieve comfortable conditions.

Timer

This mode allows programmed start up and shut down of the unit over a 24 hour period.

Sleep

This mode is used during the night. It enables the room to be maintained at optimum temperature with silent operation, avoiding excessive temperature changes. The turning off time is programmed by selecting the number of operating hours.

Heating with electric heater kit

According to room temperature and the temperature of the main coil four-way valve, commands starting up of the fan and three-step starting up of the electric heater.

The heater command is given directly by the electronic board with a proportional 0-10V signal coming from terminals 15 and 16 (DIP SWITCH 2 OFF).

The heater functions only when the fan is in operation and the main coil temperature is less than 40˚C.

There are two types of overheating protection device incorporated in the module itself. The first with automatic reset cuts in when the temperature of the electric heater is above 100˚C.The second with manual reset cuts in when the temperature of the electric heater is above 115˚C.

To RESET, turn power off then on again. The four manual fan speeds or automatic can be selected.

Humidification

This mode functions only when the humidifier module is present. It is controlled by the electronic thermostat and room humidistat supplied as standard.

It is controlled from the main electronic board, ensuring that the module functions only during heating mode and with the fan operating.

The safety devices on the humidifier consist of a float and a safety thermostat for the electric heater.

If the water level is constant for more than three minutes with the humidifier on or the pan reaches a temperature of

85°C, the humidifier is turned off automatically and an alarm signal is generated between terminals 3 and 4 on the module board. To reset, turn the power off and then on again.

Heating with auxiliary water coil kit

According to room temperature, commands opening of the auxiliary coil valve and according to the temperature of the coil (hot start), starting up of the fan.The valve command is given directly by the electronic board with a 0-10V signal coming from terminals 15 and 16, either ON-OFF (DIP

SWITCH 2 ON) or proportional (DIP SWITCH 2 OFF).

The four manual fan speeds or automatic can be selected.

Important:

- the use of the unit without valves and with the fan wired as in the diagram on page 13 disables the COOL-START function in summer operation, the HOT START function in winter operation, both with the main coil and the auxiliary water coil, and the entire “fan” function.

- in cooling and heating mode with both the main coil and the auxiliary coil with electric heater, when the thermostat reaches the temperature set, the fan comes on at

SILENT speed for 60 seconds every seven minutes.

This is to sensitise the room sensor which is normally located inside the intake duct.

Fan

In this mode, only the fan operates at one of the four manual speeds set by the remote control unit.

Note: to configure the unit, see the DIP-SWITCH table on page 8.

32 English 06/01 HWD - HWDE

DISPLAYING OPERATING MODES

MODE

OFF(1)

COOL

HEAT

DRY

COOL

COOL

HEAT

HEAT

DRY

DRY

FULL AUTO (2)

FAN

FILTERS EXHAUSTED (3)

ALARM (4)

THERMOSTAT

SATISFIED

-

-

-

-

SI

NO

SI

-

-

-

NO

SI

NO

-

DL1 (green)

There are three LEDs on the receiver panel (1 red, 1 green, 1 yellow) and they provide a general picture of the unit status (see above table).

(1) If one of the TIMER functions is active, the LEDs all remain on without flashing.

(2) As soon as the “operating mode” is selected, all LEDs go off for a number of seconds while the controller decides which operating mode to use (heating, cooling, dehumidification, ventilation).

OFF

ON

ON

(*)

OFF

-

BLINK

OFF

ON

OFF

ON

ON

ON

OFF

DL2 (yellow)

ON

OFF

OFF

(*)

ON

BLINK

BLINK

OFF

OFF

OFF

OFF

OFF

ON

OFF

DL3 (red)

OFF

OFF

ON

ON

OFF

OFF

ON

ON

ON

ON

(*)

OFF

-

BLINK

(3) When the filter is dirty (1,450 hours of operation), the yellow LED flashes.

To reset, clean the filter and hold the SW1 button on the receiver panel down for at least seven seconds.The

reset is displayed by a double flash of the three LEDs.

(4) The alarms displayed by this flashing are: sensor malfunction, external alarm, condensate alarm and valve malfunction.The display procedure is described on page 35.

U I A

OPERATING MODES HWD

To operate correctly, the HWD terminal must be combined with a room thermostat with summer/winter and fan speed selector functions located in the room being air conditioned

These functions are performed by the PTH2 accessory.

Once summer or winter mode has been selected, operation of the unit at the speed selected is controlled exclusively by the room thermostat.

Description of the PTH2 electromechanical control unit

The PTH2 control unit acts as:

1. fan speed selector to select a fan speed from minimum, medium and maximum. The set value of maximum speed only can be modified using the potentiometer on the unit's electronic board

2. summer/winter/fan selector

3. room thermostat

4. ON/OFF switch

5. automatic/manual selector

HWD - HWDE English 06/01 33

CHECKING AND STARTING UP THE UNIT

I A

PRELIMINARY CHECKS

- Check the internal unit is correctly positioned and that electrical and hydraulic connections are correct;

- check that the voltage and frequency are equal to 230V

±10%;

- check that the screws fastening the conductors to the electrical components have not worked loose;

- check the condensate drain connection;

- check that the outlet is ducted;

- check there is no air in the hydraulic circuit;

- check the hydraulic circuit for tightness.

STARTING UP

- Start up the unit in the required mode: cooling only or heating;

- check that the unit is configured in the correct mode;

- start up the unit using the remote control device. Check all functions;

- check that the absorption of the fan is below the peak current indicated in the table on page 16;

- check correct fan speed calibration in relation to the requirements of the system.

FAN CALIBRATION MODE HWDE

A

Each model of unit is supplied with the fan performance characteristics, maximum, medium and minimum speed as shown in the respective diagrams of each unit for the curves A, B or C (see page 17-18).

If these characteristics need to be improved to counteract additional pressure drop and maintain nominal air flow constant, an additional safety margin is available. This is shown in curve D. Through the board, the voltage to the fan can be increased to obtain the required performance.

The field of voltage between curve A and curve D is divided into seven equal parts as represented in the various diagrams.

After identifying the curves corresponding to the pressure drop to be overcome (see accessories, duct couplings etc), proceed as follows:

1. To access the unit control board, turn the appliance off via the remote control unit and remove the switchboard cover (see page 8)

Max speed

Curve A

Curve 1

Curve 2

Curve 3

Curve 4

Curve 5

Curve 6

Curve D

(DL1) LED Green

OFF

ON

OFF

ON

OFF

ON

OFF

ON

2. Access the CALIBRATION mode on the control board by setting DIP SWITCH 3 in the “ON” position.The fan is at the maximum pre-set speed.

3. Remove the glass protection from the receiver panel to access the emergency button SW1 (no. 8 page 30).

4. Push the switch the number of times corresponding to the curves chosen. The action is sequential. Once the maximum is reached (seven steps), it returns to the initial voltage. Each curves has a configuration of lit LEDs

(see table).

5. Place DIP-SWITCH 3 in the OFF position.

6. Replace the electrical switchboard cover.

7. Replace the glass on the receiver panel. Once maximum speed has been varied, medium and minimum speeds are automatically modified.

The sequence of LEDs lighting up on the receiver panel as fan speed is varied during calibration is given below.

(DL2) Yellow LED

OFF

OFF

ON

ON

OFF

OFF

ON

ON

(DL3) Red LED

OFF

OFF

OFF

OFF

ON

ON

ON

ON

34 English 06/01 HWD - HWDE

A

FAN CALIBRATION MODE HWD

Each model of unit is supplied with the fan performance characteristics, maximum, medium and minimum speed as shown in the respective diagrams of each unit for the curves A, B or C (see page 17-18).

If these characteristics need to be improved to counteract additional pressure drop and maintain nominal air flow constant, an additional safety margin is available. This is shown in curve D.

Maximum flow can be increased by using the trimmer RP1 on the control board inside the switchboard.

Access the board by removing the switchboard cover. Increasing maximum speed (by rotating trimmer RP1 anticlockwise) automatically increases the medium and minimum speed by the same amount.

Reducing maximum speed (by rotating the trimmer RP1 clockwise) reduces the difference between maximum and medium speeds and minimum speed.

For convenience, the difference between the maximum

Model HWD

Voltage at minimum speed (V)

Voltage at medium speed (V)

Voltage at maximum speed (V)

602

110

120

140

Note:

The adjustment obtained using the above method is adequate but not precise.

703

110

120

140 speed set (curve A) and the maximum speed available

(curve D) has been divided into seven equal parts as represented in the respective diagrams.

The voltage increase corresponding to each curve is given by the formula:

V1= (230V - V)

7

V1= voltage increase

V = voltage at max set speed (see table)

Identifying the curve corresponding to the pressure drop to be overcome also gives the voltage for calibrating maximum speed using trimmer RP1: [voltage at maximum speed

+ (V1 x no. curve)]. Always verify the voltage at the fan after every new calibration.

The calibration voltages for the various speeds for each model are given below:

804

110

140

187

904

110

140

187

1003

110

135

155

1104

120

140

180

It is therefore good practice to check the actual air flow by measuring the air speed in the duct.

U I A

The alarm display enables the user to identify the cause of the unit malfunction. To display the alarms, hold the SW1 button on the receiver down for four seconds. After the four sec-

Alarm (DL1) Led Green

None

BT1 malfunction

BT2 malfunction

Valve malfunction

Drain pump shut down

Generic alarm

Humidifier shut down

OFF

OFF

OFF

OFF

ON

ON

ON

If more than one alarm is present, the priority alarm will be displayed from a BT1 malfunction to a generic alarm. The alarm display is cancelled in one of the following ways: by pressing the SW1 button, following receipt of a command from the remote control device, by turning the power to the board off or by TIME OUT after three minutes.

Exiting from the alarm display resets normal operation of the LEDs.

DISPLAYING ALARMS HWDE

onds, the board causes the three LEDs on the receiver to flash rapidly. When the button is released, the LEDs indicate the type of malfunction as in the table below.

(DL2) Led Yellow (DL3) Led Red

OFF

OFF

ON

ON

OFF

ON

ON

OFF

ON

OFF

ON

ON

OFF

ON

Note 1: when the alarm signal appears in normal operation, the alarm display can be used without having to change the operating mode or turn the unit off.

Note 2: after displaying the alarm, contact the service centre.

HWD - HWDE English 06/01 35

TEST MODE HWDE

I A

Unit test function reserved for installer

This function provides access to the various devices for a rapid diagnosis of their functionality.

Access sequence: The unit must be turned OFF with the fan stationary. Place DIP SWITCH 4 in the ON position.When power to the unit is turned on, it will be in test mode. Press button SW1 to move on to Step A.

Step A

This step checks the functioning of the analogue inputs:

BT1 malfunction

➯ DL1 flashes otherwise DL1 on;

BT2 malfunction

➯ DL2 flashes otherwise DL2 on;

Press button SW1 to move on to Step B.

Step B

This step checks the functioning of the digital inputs;

F1 closed (pump malfunction)

➯ DL3 on otherwise DL3 flashes;

F4 closed (humidifier malfunction)

➯ DL1+DL3 on otherwise

DL1-DL3 flash;

Press button SW1 to move on to Step C.

Step C

From this step onwards, each time button SW1 is pressed, all the outputs are activated in sequence in the following order:

- minimum fan speed;

- medium fan speed;

- maximum fan speed;

- RL1 presence of 230V cooling output;

- RL2 presence of 230V heating output;

- A3 presence of 230V humidifier output;

- A4 presence of 230V air purifier output;

- SA2 and SA3 presence of 5V four-way valve output (YV1-YV2).

the next two times the test button is pressed, all resources are deactivated and the control unit is turned OFF. Press SW1 again to repeat all the steps.

Note: in TEST mode, the remote control is deactivated.

To exit the TEST mode, set DIP SWITCH 4 in the OFF position.

The unit will then be off.

POWER FAILURE HWDE

U I A

After a power failure, the board will resume operation in the mode in which it was functioning before the power cut, with the exception of FULL AUTO mode where the control unit will determine the operating mode according to the conditions existing when power returns.

Current timings will be reset. If the TIMER or SLEEP functions were active, they will be deactivated.

ROUTINE MAINTENANCE

U I A

IMPORTANT:

- Power to the unit must be disconnected before carrying out maintenance or cleaning.

- At the beginning of the season you are recommended to contact qualified personnel for the seasonal start-up.

To guarantee efficient long term operation of the unit, a number of essential and simple operations and checks should be carried out.These do not require the intervention of qualified personnel, but can be carried out by the user.

1. Checking the state of the air filters;

2. Checking the coil;

3.

Checking the structural condition of the unit.

36 English 06/01

CHECKING THE STATE OF AIR FILTERS

Depending on the environment where the internal unit is installed, the air filters need cleaning periodically. In particularly dusty atmospheres, the air filters should be cleaned every three months and you are recommended to have a differential pressure switch installed to indicate when the filters are dirty.This should be done by qualified personnel only.

REMOVING AND CLEANING THE FILTERS

1. Remove the fixing screw, then the door.

2. Remove the air filter gently from the bottom, avoiding dispersion of dust in the atmosphere.

3. Wash the filtering layer with warm water and ordinary detergent, rinse and dry thoroughly.

4. Replace the filter

5. Replace the door and fix with the screw.

HWD - HWDE

CHECKING THE COIL

1. Remove any scale and dirt from the coil.

2. Check that the aluminium fins are not bent. If necessary, straighten them using a special tool to restore correct air flow through the coil. This should be done by qualified personnel only.

CONTROL CONDITIONS STRUCTURAL OF

THE MACHINE

1. Check the state of the unit as a whole.

2. Check for the formation of rust. If necessary, treat the parts affected with rust inhibiting paint.

3. Check the fixing of the external panels.

4. Check that fixing elements are not causing excessive noise and/or vibrations.

5. Check that condensate is draining correctly and that the pan is free from scale.

6. Check that the power supply cable is in good condition without cracks or lacerations. This should be done by qualified personnel only.

I A

These operations should be carried out by qualified personnel only.

1. Check correct operation of accessories.

2. If the electric heater module is present, check electrical absorptions and operation of safety devices.

3. If the purifier module is fitted, check the condition of the filtering section and clean if necessary. Check the

U I A

SEASONAL MAINTENANCE

operation of the safety devices.

4. If the humidifier module is present, turn off the power supply. Empty the water pan by means of the cock provided. Check the state of the electric heater. Remove any scale present and check operation of safety devices.

USEFUL INFORMATION

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For information on technical assistance and obtaining spare parts, see the DE’ LONGHI INTERNET SITE at www.delonghi.com

TOLL FREE 800 019 190

DE’ LONGHI spa SWITCHBOARD 04224131

INTERNET www.delonghi.com

HWD - HWDE English 06/01 37

Dé Longhi spa 31100 TREVISO - Via L.Seitz, 47 Tel. 0422-413659

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