Western Airconditioning Doppio 4, Doppio 2 EX, Doppio 2, Doppio 4 EX Technical Information Manual

Western Airconditioning B.V. Tel. [phone] www.western.nl

DOPPIO (EXCLUSIVE)

hybrid fancoil

Technical information manual

Technical information manual

Western Airconditioning B.V. reserves the right to alter specifications

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Index

1. GENERAL INFORMATION 3

1.1 FUNDAMENTAL SAFETY RULES 3

1.2 SAFETY PRECAUTIONS 4

2. TECHNICAL FEATURE 5

2.1 PARTICULAR DESCRIPTION AND MAIN COMPONENTS 5

2.2 TECHNICAL DATA 6

2.3 DIMENSIONS AND WEIGHTS 7

3. BEFORE INSTALLATION 8

3.1 ACCESSORY 8

3.2 SAFETY CONSIDERATIONS 8

3.3 OPERATING LIMITS 8

3.4 BEFORE INSTALLATION 9

3.5 SELECT LOCATION 9

4. INSTALLATION 10

4.1 POSITIONING THE UNIT 10

4.2 PLUMBING CONNECTION SIDE 11

4.3 WALL MAP 13

4.4 ELECTRICAL CONNECTION SIDE 15

4.5 INSTALLATION METHOD 17

4.6 FIX RADIATOR, COVER AND ALL THE METAL SHEET 34

4.7 HOW TO ACCESS AIR VENT AND WATER PURGE 36

5. ADDITIONAL INFORMATIONS 37

5.1 THERMOSTATIC+2 WAY VALVE BOX KIT 37

5.2 THERMOSTATIC +3 WAY BY PASS VALVE BOX KIT 38

5.3 4-PIPES 3 WAY BY PASS VALVE BOX KIT 40

5.4 CATALITIC FILTER 42

5.5 METAL WALL MAP 42

5.6 HUMIDISTAT KIT 43

5.7 WALL PAD KIT 44

6. NOTE FOR THE FINAL CUSTOMER AND MAINTENANCE 45

7. TABLE OF ANOMALIES AND REMEDIES 52

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1. GENERAL INFORMATION

Thank you for choosing this excellent and innovative Fan coils –Radiator for controlling the climate in your
home.

This product is Patent BS BS2007A000147 and protect from any imitations.

Please read this instruction use and installation manual carefully before installing and starting up the appliance.
Following the indications contained in this manual will ensure that the appliance continues to function
perfectly over time.

This appliance must be installed by an authorized installer who, on completion of the work, will release a
declaration of conformity to the client in respect of the laws in force and the indications given by Manufacturer
in the instructions leaflet supplied together with the appliance. These appliances have been designed both for
conditioning and/or heating environments and must be destined for this use only and compatibly with their
performance characteristics. Manufacture accepts no responsibility, either contractual or extra contractual, for
any damage caused to persons, animals of property as a result of incorrect installation, adjustment or
maintenance or improper use.

This instruction leaflet is an integral part of the appliance and consequently must be kept carefully and must
ALWAYS accompany the appliance, even when it is passed to a new owner or user or transferred onto another
system. If it is lost or damaged, please contact the Manufacturer customer service .

All repair or maintenance interventions must be performed by the technical service department or by
professionally qualified personnel as foreseen in this booklet. Do not modify or intervene on the appliance as
this could create dangerous situations and the manufacturer will not be responsible for any damage caused.

1.1 FUNDAMENTAL SAFETY RULES

Remember that some fundamental safety rules should be followed when using a product that uses electricity
and water, such as:

 It is forbidden for the appliance to be used by children or unassisted disabled persons.
 It is forbidden to touch the appliance with wet hands or body when barefoot.
 It is forbidden to carry out any cleaning before having disconnected the appliance from the electricity

mains supply by turning the system master switch to "OFF".

 It is forbidden to modify the safety or adjustment devices or adjust without authorization and

indications of the manufacturer.

 It is forbidden to pull, cut or knot the electrical cables coming out of the appliance, even if it is

disconnected from the mains supply.

 It is forbidden to poke objects or anything else through the inlet or outlet grills.
 It is forbidden to open the doors which access the internal parts of the appliance without first turning

the system master switch to "OFF".

 It is forbidden to dispose of or leave in the reach of children the packaging materials which could

become a source of danger.

 It is forbidden to climb onto the appliance or rest any object on it.
 The external parts of the appliance can reach temperatures of more than 70°C.

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DANGER FROM BURNS - TAKE CARE WHEN TOUCHING

1.2 SAFETY PRECAUTIONS

Installing, starting up, and servicing water terminal can be hazardous due to system pressure, electrical
components, and equipment location, etc.
Only trained, qualified installers and service personnel are allowed to install, start-up, and service this
equipment. Untrained personnel can perform basic maintenance functions such as cleaning coils. All other
operations should be performed by trained service personnel.
When handling the equipment, observe precautions in the manual and on tags, stickers, and labels attached to
the equipment. Follow all safety codes. Wear safety glasses and work gloves. Keep quenching cloth and fire
extinguisher nearby when brazing. Read the instructions thoroughly and follow all warnings or cautions in
literature and attached to the unit. Consult local building codes and current editions of national as well as local
electrical codes. Recognize the following safety information: Incorrect handling could result in personal injury
or death. Incorrect handling may result in minor injury, or damage to product or property.

All electric work must be performed by a licensed technician according to local regulations and the instructions
given in this manual. Before installing, modifying, or servicing system, main electrical disconnect switch must
be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable
warning label. Never supply power to the unit unless all wiring an d tubing are completed, reconnected and
checked. This system adopts highly dangerous electrical voltage. Incorrect connection or inadequate grounding
can cause personal injury or death. Stick to the wiring diagram and all the instructions when wiring. Have the
unit adequately grounded in accordance with local electrical codes. All installation or repair work shall be
performed by your dealer or a specialized subcontractor as there is the risk of fire, electric shock, explosion or
injury.

 Properly insulate any tubing running inside the room to prevent the water from damaging the wall.

Make a proper provision against noise when the unit is installed at a telecommunication center or
hospital.

 Provide an electric leak breaker when it is installed in a watery place.
 Never wash the unit with water.
 Should any emergency occur, stop the unit and disconnect the power immediately.
 Handle unit transportation with care. The unit should not be carried by only one person if it is more

than 20kg.

 Never touch the heat exchanger fins with bare hands.

 Do not have the unit operate without air filter.
 BEFORE AND DURING THE STARTING UP OF THE UNIT (SO WHEN THE UNIT IS ON AND THE VALVE IS

OPENED), VERIFY THE ABSENCE OF WATER LEAKAGE IN ALL PIPES AND HYDRAULIC CONNECTIONS IN
BOTH INTERNAL AND EXTERNAL PART OF THE UNIT.

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2. TECHNICAL FEATURES

2.1 PARTICULAR DESCRIPTION AND MAIN COMPONENTS

Supporting structure in high resistance

galvanized and epoxy polyester painted steel
sheet.

Heat exchange battery made in copper pipes
and aluminum fins with high efficiency
turbulence and oxidation treatment .

Frontal Radiator ; made in steel or aluminum
epoxy polyester painted , the particular
shape supply high efficiency and high
thermal inertia in heating mode .

Ventilating unit consisting of a radial fan
with special patent blade in ABS glass fiber
reinforced (extremely quiet) mounted on
anti-vibration supports in EPDM, balanced
statically and dynamically, and splined
directly onto the motor shaft .

Low consumption Electric motor, single
phase with resin-coated coil mounted on
anti-vibration supports in EPDM.

Primary and catalytic filter , big filter surface with
low air speed to obtain maximum filter efficiency

Static switch, 0 dB(A) in heating mode

Display

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2.2 TECHNICAL DATA

Model

Doppio 2 (EX)

Doppio 4 (EX)

Number of fan blowers

Single

Dual

Cooling capacity(max)
7-12℃

W

2169

3585

16-22℃

554

707

Heating capacity(max)

50℃

W

2498

3763

70-60℃

4237

6528

75-65℃

4765

7357

45-40℃

2023

3136

35-30℃

915

1418

Air flow
Min

m3/h

150

250

Max

400

750

Sound power
Min

dB(A)

0

0

Max

54.1

56.3

Sound pressure at 1m
Min

dB(A)

0

0

Max

47.9

50.1

Power supply

(V/Ph/Hz)

230/1/50

230/1/50

Max Fan motor power

W

45

98

Cooling water flow rate

L/h

376

616

Cooling water pressure drop

kPa

16.8

32.3

Cond. Drain connection O.D.

mm

16.5

16.5

Coil water content

liter

1.1

1.8

Radiator water content

liter

3.03

5.05

Water connection

IN/OUT

in

3/4"

3/4"

1. Eurovent Certified Specification.

2. Standard Cooling Capacity is tested under the condition 27 °C Dry Bulb /19.5 °C Wet Bulb entering air

temperature, 7 °C entering water and 12 °C leaving water temperature with water flow rates specified.

3. Standard Heating Capacity is tested under the condition 20 °C Dry Bulb entering air temperature, 50 °C entering

water temperature with water flow rates same as for the cooling test +radiator.

4. Air flow measured with clean filter

5. Sound power measured according to ISO 3741:1998

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2.3 DIMENSIONS AND WEIGHTS (2 AND 4 PIPES VERSION)

Model

A ( mm )

B ( mm )

C ( mm )

KONRAD KRA-2.0EX

757

166

578

KONRAD KRA-4.0EX

757

166

894

Net weight (without water)

Kg

KONRAD KRA-2.0EC

32

KONRAD KRA-4.0EC

52

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3. BEFORE INSTALLATION

3.1 ACCESSORY

First check the contents inside package. Factory supply all accessory necessary for installation.

Standard and optional accessory List :

 N° 1 Wall bracket (standard)
 N° 1 Drainage pipe (standard)
 N° 1 User and installation manual(standard)
 N° 1 Template wall map (standard)
 N° 1 Special wrench tooling and Allen key (standard)
 N.2 flexible pipe with N° 1 H shape connection valve and stop valves (optional)

The appliance should be installed in accordance with national wiring regulation.

3.2 SAFETY CONSIDERATIONS

 When working on air conditioning equipment, observe precautions in this manual, and on plates and

tables attached to the unit. Follow all safety codes and other safety precautions that may apply.

 Installing and servicing air conditioning equipment should be done by trained and qualified service

personnel only. Untrained personnel can perform only basic maintenance functions such as cleaning
coils, filters and replacing filters.

 Ensure that the electrical supply and frequency are adequate for the operating current required for

this specific installation.

WARNING- Before any service or maintenance operations turn off the main power switch.

 The manufacturer denies any responsibility and warranty shall be void if these installation instructions

are not observed.

 Never switch off the power main supply when unit is operating in the cooling cycle. To switch off the

fan coil unit use only the ON-OFF button.

 This avoids over-flow in the drain pan, by allowing the pump to drain any condensate water due to

regulating valve losses when chiller is working.

3.3 OPERATING LIMITS

 Power supply

Volts

Phase

Hz

230 1 50

Temperature range between +5°C and +32 °C- 60 % U.R.
Minimum entering water temperature: +4 °C
Maximum entering water temperature: +80 °C
Water side maximum pressure: 600 KPa- ( 6 Bar )

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3.4 BEFORE INSTALLATION

 The installation site must be established by the system designer or other qualified professional, taking

account of the technical requisites and current standards and legislation.

 Fan coils radiator must be installed by an authorized company only.
 Fan coils radiator are designed for floor standing installation .
 They must be installed in such a way as to enable treated air to circulate throughout the room and in

respect of the minimum distances required for technical maintenance operations.

 It is advisable to place the unit close to the installation site without removing it from the packaging.
 Do not put heavy tools or weights on the packaging.
 Upon receipt, the unit and the packaging must be checked for damage sustained in transit and if
 necessary, a damage claim must be filed with the shipping company.
 Check immediately for installation accessories inside the packaging.
 Check and note the unit serial number.

3.5 SELECT LOCATION

 Do not install the unit in rooms where flammable gas or alkaline acid substances are present.

Aluminum/copper coils and/or internal plastic components can be damaged irreparably.

 Do not install in ambient where oil vapors drawn in by treated air might deposit on the coils and alter

their performance or damage the internal plastic parts of the unit.

 It is recommended to position the unit as centrally as possible in the room to ensure optimum air

distribution.

 Check that it is possible to remove filter , to allow enough clearance for maintenance and servicing

operations.

 The appliance shall not be installed in the laundry.
 The appliance shall be installed in accordance with national wiring regulations.

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4. INSTALLATION

4.1 POSITIONING THE UNIT ( minimum distance from obstacle )

 The dimensions of the space necessary for correct installation of the appliance including the minimum

permissible distances to adjacent structures.

Note : Machine is supplied with paper wall map to avoid any mistake from installer .

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4.2 PLUMBING CONNECTION SIDE

 The position of plumbing fitting must be from right side , from the wall or from the floor.
 The choice and size of the plumbing lines is decided by the designer , who must operate in compliance

with good man ship and current legislation .

CONNECTION PIPES DIAMETERS

Model

Water Flow Max

( L/h )

Ø Steel ( “ )

Ø Copper (mm)

Ø Multilayer pipe

(mm)

Doppio 2 (EX)

376

1/2

18/22

20

Doppio 4 (EX)

616

3/4

18/22

26

Max speed suggested V = m/sec :

Pipe Type

Principal pipe

m/sec

Secondary pipe

Connection pipe to the indoor terminal (

fan coils + radiator )

Steel pipe

1.5 – 2.5

0.5 – 1.5

0.2 – 0.7

Copper Pipe

0.9 – 1.2

0.5 – 1.2

0.2 – 0.5

Multilayer plastic

pipe

1.5 – 2.5

0.5 – 1.5

0.2 – 0.7

EXAMPLE OF PLUMBING CONNECTION FOR 2 AND 4 PIPES INSTALLATION

 Machine is supplied with paper wall map to identify fast the right plumbing connection position if

pipes coming from wall or from the floor .

 Is possible to use also strongest pipe wall map metal made , useful to reuse many time.
 Below is reported the images and quote for fast understanding .

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Plumbing from wall

Plumbing from floor

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4.3 WALL MAP

Wall map Doppio 2 (EX)

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Wall map Doppio 4 (EX)

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4.4 ELECTRICAL CONNECTION SIDE

Important

 The position of electric connection must be from left side , from the wall or from the floor.
 The power supply must pass through a specific master switch fitted with delayed fuses or a 2A thermo

magnetic circuit breaker. By law, an anti-disturbance filter is mounted on the cabling bracket to
discharge to heart a micro-current therefore it is advisable to use a delayed differential in installations
with more than one unit .

 For safety motives, the main disconnecting switch should be located in a visible place , close to device

powered .

 The power cables must be fitted with copper conductors with the following individual section ( the

values indicated refer to a maximum line length 15 m ) .

 The cables must be type H07-RR-F and have a minimum diameter of 8 mm .

Model

Conductor section sq mm –

Ground power ( phase and neutral

)

Ground

Doppio 2 (EX)

1.5

1.5

Doppio 4 (EX)

1.5

1.5

Signal wiring

 To avoid interference is advised to put power cable and signal cable in different plastic tube inside the

wall

Model

Signal cable sq mm

Note

Doppio 2 (EX), Doppio 4 (EX)

0.50-0.70

H07VK Type

EXAMPLE OF ELECTRIC CONNECTION

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 Machine is supplied with paper wall map to identify fast the right electric connection position if

coming from wall or from the floor .

 Is possible supply also strongest pipe wall map metal made , useful to reuse many time .
 Below is reported the images and quote for fast understanding .
 Don’t use power cable within signal cable ( coming from wall pad or external sensor ) inside the same

corrugated pipe , because is possible to have signal interference .

Electric wiring from wall

Electric wiring from floor

 If the supply cord is damaged, it must be replaced by the manufacture its service agent or a similarly

qualified person in order to avoid a hazard.

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4.5 INSTALLATION METHOD ( 2 Pipes Example )

 Before to proceed to fix the machine , using paper wall map , control the correct pipe correspondence

and wall bracket position .

 Proceed to drill plastic anchor hole for metal wall bracket and pay attention to fix it after checked

correct positioning with level meter.

 Remove paper wall map, and proceed to fix flexible water pipe using kit supplied from factory. The

kit( optional) includes soft pipes and H shape valve. Pipe kits have correct diameter and length for
easy installation.

H shape ball valve
(optional)

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 Remove filter

 Take out n.4+4 screws from left and right metal flanks by Allen key.

Optional

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 Take out n.2 screws by the top panel by Allen key. Remove the metal flanks

 In the same way, remove 2+2 screws by Allen key. Remove the panel on the top

Note: Disconnect the cable from display

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 Remove radiator

Take out 2pcs screws by the driver and remove

the pipe cover carefully from bottom of the unit ,

and disconnect the 2pcs radiator nuts with

wrench, then lift the radiator carefully.

 Remove metal cover like below image

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 Remove PCB box cover , to have easy access for wiring connection .

 Hang the machine to the wall bracket.

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 Fix plumbing to the valve box and pay attention to connect IN and OUT pipe in correct position.

 Above pipes must be insulating with 6 mm thickness sponge if machine can work also with cold water .

 Important Note : Pay attention to connect flexible pipe in right position like below image.

Optional

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 Connect water pipe drainage to the

plumbing discharge like below image .

 Proceed to arrange wiring connection

in left side , and pay attention don’t

have electricity inside the wiring

BEFORE AND DURING THE STARTING UP OF THE UNIT (SO WHEN THE UNIT IS ON AND THE VALVE IS
OPENED), VERIFY THE ABSENCE OF WATER LEAKAGE IN ALL PIPES AND HYDRAULIC CONNECTIONS IN
BOTH INTERNAL AND EXTERNAL PART OF THE UNIT

Water side maximum pressure: 600 KPa- ( 6 Bar )

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 Wiring diagram ( connection PCB )

 Pay attention don’t have electricity inside the wiring and proceed to connect power wiring and signal

cables like below scheme.

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 Connect GND wiring
 Connect N1 Neutral wiring
 Connect L1 Phase wiring
 Connect wall pad if present
 Connect Humidistat Kit if present
 Connect Window contact if present
 Connect AUX 2 to the Chiller or HP and pay attention this is Cooling NO signal.
 Connect AUX 1 to the boiler or HP and pay attention this is Heating NO signal.
 MOD BUS connection .
 For master and slave installation , the signal from master unit to slaves units are only from MOB BUS

cable

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 Connect MOD BUS plug to RJ45 socket
 The MOD BUS plug must be RJ 45 , very common in the market because is used from all computer use

and connection.

 See below RJ plug and wiring position ; MOD BUS connection required only two wirings

 Below Master & Slave machine connection .

 AUX 1 Hot signal
 AUX 2 Cold signal
 The machine must be configured before used

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 Fix PCB box cover
 Only when all electric connection are completed , you can proceed with machine configuration like

below procedure .

DIP switch setting :

DIP switch setting: 1 for ON, 0 for OFF.

Note: All units will be produced from with SW3= 0 , the installer must remember to set 1 for first and last slave
units to close the net and avoid Net stability problem

Note : SW4 DIP switch will be settled from factory during the production , and is fixed with hot glue to avoid
installer mistake.

SW1

System setting

0

2 pipes system

1

4 pipes system

SW2

MTV(motorized valve) setting [applicable to 2 pipes system only, 4 pipes system is fixed with motorized
valve]

0

Without motorized valve

1

With motorized valve

SW3

RS485 termination setting

0

Other than below

1

First and Last unit on RS485 communication bus

SW4

PG motor

0

PG1 motor is active ( mini size one motor )

1

PG1, PG2 motors are active ( medi size two motors )

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 Now you can Supply power electricity to the machine
 Switch ON the machine trough On-Off button on command on board .

MASTER AND SLAVE ADDRESS SETTING

 Press both “FAN UP ” and “MODE” buttons on command on board, and keep 3 seconds, after long beep

from buzzer, unit would come into ID address setting mode.

 LCD display show only big number like below image .

 Number LED would display the original ID code if it was set before. By pressing Temperature UP/DOWN

buttons to adjust the address code, 02-31 codes mean slave unit, and 01 means master unit.

 When you have settled ID code with temperature UP/down buttons, to confirm the ID address you must

push SLEEP button , and after long beep from buzzer , setting is memorized, unit would come back to
normal display.

 If there is no any operation after 5 seconds, ID setting is invalid. After long beep from buzzer, LCD would

come back to normal display.

 If computer is master unit, 01 master unit should be modified with 32 by manual. As system should have

only one master unit.

01 = master

02 : slave

03 : slave

…

31: slave

32 : slave

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PR PROGRAM SETTING

Press both “MODE ” and “SLEEP” buttons on command on board, and keep 3 seconds, after long beep from buzzer,
unit would come into program setting. Press “Fan+” and “Fan-” buttons to adjust PR1 to PR12, and press “Temp+”
and “Temp-“ to adjust the parameter.

PR 1: Mode setting-Cooling&Heating /cooling / heating setting

When coming in program setting ,the first program showed is PR 01:

PR1: Default setting is Cooling&heating mode, LCD would

display and symbols, and LCD is cH.

Press Temp up or down button, you can select only cooling

mode, LCD would only display , and LED is co. Or only

heating mode, LCD would only display , and LCD is hE.

After PR1 mode setting, pressing Fan up button to enter PR2.

PR 2: AutoMode

PR2: Auto mode like below :

Default configuration is symbol on = Auto mode is on
and machine work with specific program for each type of
configuration settled before , with and without valve , 2
pipes or 4 pipes .

Press Temp up or down buttons to select symbol off =
Auto mode is off .

After PR2 setting, press Fan up button to enter PR3.

PR3: Alarm with or without buzzer

PR 3: Default configuration LCD is “no” = Buzzer OFF for
Alarm. When there is problem with unit, LCD will display
error code only.

Press Temp up or down buttons, to adjust LCD with

“nc”=Buzzer ON for Alarm. When there is problem with
unit, LCD will display error code, same time buzzer is ON all
the time.

PR3 is only for Alarm setting, PCB would responds “beep”
once receiving the commands all the time.

After PR3 setting, press Fan up button to enter PR4

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PR 4= Celsius and Fahrenheit conversion

PR 4: Default display is °C symbol. Press Temp up or down
button to set °C or °F.

Note : in Program PR 4 , show only °C or °F.

After PR4 setting, press Fan up button to enter PR5.

PR 5 = Anti-hot air setting in cooling mode

PR5 is cold water temperature setting for anti-hot air
function during cooling mode, default value is 15 if °C is
settled and display. Or default value is 59 if °F is settled and
display.

Press Temp up or down button to change this value
conforming to below range :

°C setting: 7-30.

°F setting: 45-86.

Note : in Program PR 5 , no possible to set number out of above range 7-30 for °C range and 45-86 for °F range

After PR5 setting, press Fan up button to enter PR6.

PR 6 = Anti-cold air setting in heating mode

PR6 is hot water temperature setting for anti-cold air
function during heating mode, default value is 36 if°C is
settled and display. Or default value is 97 if °F is settled
and display. Press Temp up or down button to change this
value conforming to below range :

°C setting: 25-45.

°F setting: 77-113.

Note : In Program PR 6, no possible to set number out of above range 25-45 for °C range and 77-113 for °F
range.

As the LCD only could display 99 with the max number, for other numbers, like 100-113, it would show a0,
a1….a9, b0, b1….b3 accordingly.

After PR6 setting, press Fan up button to enter PR7

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PR 7 = Setting temperature range in cooling

PR7: Need to set different temperature range with cooling
mode. Default range is 16-30 ℃ (61-86℉) and LCD display 00.

Other 3 settings are optional: 01,02,03

01: 20-30℃（68-86℉）

02: 23-30℃（73-86℉）

03: 25-30℃（77-86℉）

Press Temp up or down button to select the setting. In PR7, only show cooling symbol , and LCD show
00,01,02,03.

After PR7 setting, press Fan up button to enter PR8.

PR 8 = Setting temperature range in heating

PR8: Need to set different temperature range with heating

mode. Default range is 5-30 ℃ (41-86℉) and LCD display 00.

Other 3 settings are optional: 01,02,03

01: 5-25℃（41-77℉）

02: 10-25℃（50-77℉）

03: 15-25℃（59-77℉）

Press Temp up or down button to select the setting. In PR7, only show heating symbol , and LCD show
00,01,02,03. After PR8 setting, press Fan up
button to enter PR9.

PR 9 = NTC compensation in cooling mode

PR9:Neet to set NTC compensation in cooling mode. Default
compensation is +2 for °C setting, LCD display 02. Press Temp
up or down button to change this value conforming to below
range: -3-+3. Or default compensation is +4 for °F setting, LCD
display 04, and range is -6~+6.

Note : in Program PR9, no possible to set number out of
above range -3-+3.

After PR9 setting, press Fan up button to enter PR10.

PR9 should be set by factory, and would be invalid for the wall pad NTC. This setting is invalid for wall pad NTC

sensor.

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PR 10 = NTC compensation in heating mode

PR10: Need to set NTC compensation in heating mode.
Default compensation is -1, LCD display -1. Press Temp up
or down button to change this value conforming to below
range: -4-+4.

Note : in Program PR10, no possible to set number out of
above range -4-+4.

After PR10 setting, press Fan up button to enter PR11.

PR10 should be set by factory, and would be invalid for the wall pad NTC.

This setting is invalid for wall pad NTC sensor.

PR 11 = Fan speed selection

PR11: Need to select fan speed. Default fan speeds are 850­800-700-600-550-500rpm, and LCD display 01.

Another option is:

02: 650-600-550-500-450-400rpm

Press Temp up or down button to select the setting, In
PR11, LCD only shows 01,02.

After PR11 setting, press Fan up button to enter PR12.

PR 12 = Time setting of Anti-hot air/Anti-cold air

PR12: Need to select the setting time of anti-hot air during
cooling mode, or anti-cold air during heating mode. PR12
setting is suitable for both Anti-hot air and Anti-cold air
time setting. Default setting time is 40 minutes, and LCD
display 40.

Press Temp up or down button to change this value
conforming to 1-90 minutes range.

In PR12, no possible to set number out of the range 1-90.

After PR setting is finished, press both “MODE” and “SLEEP” buttons for 3 seconds, system would remember
the setting and exit PR setting program.

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PR DEFAULT SETTING

Press both “MODE ” and “FAN -” buttons on command on board, and keep 3 seconds, after long beep from
buzzer, all PR setting(PR1-PR12) would be with default status.

Below is default PR setting

PR No.

PR Setting

Default condition

PR1

Mode setting-Cooling&Heating /cooling /
heating setting

Cooling&Heating, LCD display cH

PR2

Auto Mode setting
Yes, LCD display

PR3

Alarm with or without buzzer

No, LCD display “no”

PR4

Celsius and Fahrenheit conversion

Celsius, LCD display “℃”

PR5

Anti-hot air setting in cooling mode

15℃ or 59℉

PR6

Anti-cold air setting in heating mode

36℃ or 97℉

PR7

Setting temperature range in cooling

16-30 ℃ (61-86 ℉) , LCD display “00”

PR8

Setting temperature range in heating

5-30 ℃ (41-86 ℉）, LCD display “00“

PR9

NTC compensation in cooling mode

+2,LCD display “02”

PR10

NTC compensation in heating mode

-1, LCD display “-1”

PR11

Fan speed selection

850-800-700-600-550-500rpm,LCD display
01,

PR12

Time setting of Anti-hot air/Anti-cold air

40minutes, LCD display 40

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4.6 FIX RADIATOR, COVER AND ALL THE METAL SHEET.

Machine hardware and software configuration is terminated , now we can proceed to fix the frontal radiator
and switch ON the system .

Fix radiator in front of the machine :

After PCB connection , we can proceed to
finish machine installation .

Proceed to close frontal metal cover like
right image .

Proceed to hang radiator to the machine
hooks:

Connect radiator pipes in the machine bottom:

As the connector is in the bottom, just be with
some patient, connect the pipe well.

No need insulating these pipes because
every time work with hot water .

Now, we can check the water system, if there
Is leakage.

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Fix pipe cover

If there is no water leakage, we should fix the
pipe cover at the bottom of the unit.

Push the pipe cover and insert the buckle into
the metal case holes.

Fix 2pcs screws by driver.

As the cover is in the bottom, just be with
some patient, connect the pipe well.

Fix panel on the top of the machine

Repeat reverse operation as indicated in the previous pages to remove the panel on the top.
Note: Connect the display cable and fix it well.

Note: before fixing the right flank to the unit, access to air vent and water purge as indicated in the next
section

Fix left&right flanks on the machine

Repeat reversed operations as indicated in the previous pages to remove the metal painted flanks

PRELIMINARY CHECKS BEFORE START-UP

 Open water circuit and deeply check don’t have any water leakage, we remember if fan coils will be

used with chilled water, connection pipe must be insulating .

 The unit should not be started up until the system piping has been cleaned and remember all the air has

been purged (if you don’t make operation as indicated before).

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4.7 HOW TO ACCESS AIR VENT AND WATER PURGE

Remove the flank on the right as indicated
In the previous pages
(you are in front of the radiator).

1st STEP: there are two air purge:
one is for the radiator,
another is for the exchanger.

2nd STEP: release the water purge
like traditional radiator with loosing the
screws by hand.

EVACUATING AIR WHILE FILLING THE SYSTEM

 Open all the system device ( automatic or manual ) .
 Start the filling by slowly opening the system water filling tap .
 For the 2- pipes version , set the machine in heating mode and when the water coming out of the valves of

the appliance , close them and continue filling until reaching the nominal value for the system .

 Check the hydraulic seal of the gasket .
 It is advisable to repeat these operations after the appliance has been running for a few hours and

periodically check the pressure of the system .

 For the 4-pipes system , use above procedure in cooling and heating mode .
 Check condensate drain pipe slope.
 After you have connected the main power supply to the unit, it is necessary to check the good function of

the condensate water pump which is installed inside. Due to transport vibration, it might be possible that
the float switch is hung up and the pump might not work in the correct way. For this reason, you have to
do the following, to ensure good functioning of the unit:

 Install the unit in an absolute horizontal position.
 Fill the internal drain pan (manually) with enough water to ensure the drain pump is working.
 Make sure that air filter is clean and properly installed.
 Verify that air outlets are not closed.
 If all preliminary check is OK , you can proceed to assembly missing parts , like
 Filter
 Air purge rubber cover
 Radiator pipe cover

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5. ADDITIONAL INFORMATIONS

 Below is reported the list of accessory and some important technical information for their installation and

correct use .

5.1 THERMOSTATIC+2 WAY VALVE BOX KIT

 Installation : 2 pipes ( hot and Cold water )
 Thermostatic valve default setting 30 °C
 This valve box , need to activated radiator only

when water temperature is higher than 30 °C .

 2 way valve with ON-OFF actuator
 This valve box is suggested when present

Inverter pump in the hydraulic circuit

 Below hydraulic scheme .

 Hydraulic scheme

 Characteristic curve of Watts Industries Valve used (see “straight way Kv 2.8”)

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5.2 THERMOSTATIC +3 WAY BY PASS VALVE BOX KIT

 Installation : 2 pipes ( hot and

Cold water ).

 Thermostatic valve default

setting 30 °C.

 This valve box , need to activated

radiator only when water
temperature is higher than 30 °C.

 3 way by pass valve with ON-OFF

actuator.

 This valve box is suggested when

present On-Off pump in the
hydraulic circuit.

 Below hydraulic scheme.

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 Hydraulic scheme

 Characteristic curve of Watts Industries Valve used (see “straight way Kv 2.8” and “by-pass KV 1.8”)

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5.3 4-PIPES 3 WAY BY PASS VALVE BOX KIT

 Installation : 4 pipes ( hot and Cold

water )

 This valve box , need to activated

radiator only when unit is working with
heating mode.

 3 way by pass valve with ON-OFF

actuator

 This valve box is suggested for On-Off

and Inverter pump in the hydraulic
circuit

 Below hydraulic scheme .

 Hydraulic scheme

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 Characteristic of Watts industries Valve used

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5.4 CATALITIC FILTER

 Catalytic filter
 This filter must be changed every 100

h , not possible to clean .

5.5 METAL WALL MAP

 Strong and adapt for many installation

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5.6 HUMIDISTAT KIT

Procedure to install Humidity kit

 Humidistat kit , to control humidity

inside the room to prevent moisture
on the floor or radiant surface

 Decide the right location for sensor

box and fix back box to the wall with
anchors.

 This white sticker is protecting the

sensor when this kit is not used, just
remove it.

 Only master unit should be

connected to Humidistat kit .

 Proceed to arrange connection inside

to the PCB box.

 Red cable: VCC, Black cable: GND,

White cable: RX2, Yellow cable: TX2

 The machine recognize automatically

the component , and when machine
work in Dehumidification Mode will
use humidistat kit .

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5.7 WALL PAD KIT

Procedure to install

 Wall pad , to control all machine

functionality for global control

 Decide the right location for sensor

box and fix back box to the wall with
anchors .

 If wall pad is connected to master

unit it control all the net ( master and
slave ) and wall pad is master .

 If wall pad is connected to slave

control only slave unit

 Proceed to arrange connection inside

to the PCB box .

 Red cable: VCC, Black cable: GND,

White cable: RX1, Yellow cable: TX1

 The machine recognize automatically

the component

 For function see below information

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6. NOTE FOR THE FINAL CUSTOMER AND MAINTENANCE

LCD COMMAND ON BOARD

Description Of LCD Command On Board

Red Led Power: Electrical power connection Signal.

ON/OFF: Turn ON or Turn off the unit.

Mode: Set up the unit operating mode.

Fan up: Increase the fan speed.

Fan down: Decrease the fan speed.

Temperature up: Increase the setting temperature.

Temperature down: Decrease the setting temperature.

Sleep: Automatically adjusting the setting temperature according the circadian rule.

Temperature sensor: Check the room temperature.

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Description Of Display LCD

Symbols :

( ) : Cooling mode

( ) : Heating Mode

( ) : Fan Mode

( ) : Auto Mode

( ) : Dehumidification Mode

( ) : Sleep Mode

( ): Alarm ( from E1 to E11 )

( ): Fan speed (from 1 to 6)

Legenda :

RT : Room temperature

SET : Setting temperature

°C : Celsius temperature

°F : Fahrenheit temperature

%: Humidifity display

Fan : 6 fan speeds

Auto: Auto fan speed

Static : No fan speed(only within heating

mode)

PR88: Program mode, PR01-12(program
setting purpose)

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EXCLUSIVE WALL PAD
Exclusive Wall Pad Display

GROUP

SLEEP

MODE

TIME

NET

DAY

CANCEL

TIMER

FAN-

FAN+

HUMIDIFY

HUMIDIFY

AUTO

HEATER

SUN MON TUE WED THU FRI SAT

OFF

ON

ERR
UNIT

HEATCOOL FAN DRY SLEEP

AUTO

SWING

Temperature display area

Display set or room temperature

Operation display

fan 1

fan 2

fan 3
fan 4

Fan speed display

Day display area
Display day of week

SUN

Sunday

Monday

MON TUE

Tuesday

Friday

FRI

THU

Thursday

Wednesday

WED

Saturday

SAT

Key lock

Timer display area

Display on/off timer or real time cl ock, RTC

ON

On timer

OFF

Off timer

Global control
by master in
networking mode

Unit display area
Display Unit address

ERR

Error display

UNIT

Address display

On/Off button

Press once to start operation
Press again to stop operation

Room temperature setting button

Net button for networking control

Day button

To select day of week, Sunday to Saturday
Or used in weekly on/off timer
programming to select day of week

global control mode setting

and sleep

Time setting button

To adjust the RTC setting or to be used in

on/offtimer programming to adjust timer setting

Timer cancel button

To cancel on/off timer setting in
timer programming mode

Timer button
Press to activate on/off

timer programming mode

IR

Infra red reception
To receive wireless handset signal

Mode button
Press to select cool,
fan, dry, heat or
auto operation mode

Fan speed minu button

Fan speed add button

Humidify + and - buttons to select slave unit

fan 5

fan 6

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Exclusive Wall Pad Operation

1) Clock display and setting

System has an accurate internal real time clock used for time indication and timer ON/OFF function. Normally, time

clock display area indicates internal time clock which can be set by

TIME

or

TIME

button.

2) Day display and setting

The wall pad support day display function, it can be used as day indication and timer ON/OFF function, day display icon

indicates current day. Press

DAY

button to set day.

3) Timer ON/OFF setting

If master unit is in global control mode and on/off timer setting is reached, master unit will command the whole
network to be on or off. Otherwise timer on/off is effective to the local unit only. The system supports 7 days on/off
timer setting.

a) Press

TIMER

button once, and

ON

symbol blinking indicates on timer programming mode, day display

area indicates the day for setting on timer on. If on timer for this day is null, timer display area shows

, otherwise the on timer setting will be shown. Press

TIME

or

TIME

button to change the on timer

setting. Press

CANCEL

key to cancel the current on timer selected and the timer display area shows .

Press

DAY

button to change the day the on timer to be programmed.

b) Press

TIMER

button again, and

OFF

symbol blinking indicates off timer programming mode. The

setting method is the same as on timer setting above.

c) Press

TIMER

button again, to exit timer on/off setting function.

d) Should there be any on or off timer being programmed, will light up. Should there be any unexecuted on

or off timer for the current day, its corresponding ON or

OFF

icon will light up.

e) If the system is healthy, hold down

CANCEL

button for 3 sec will cancel all timer settings.

Clock synchronization by master unit is as follow:

1. Press

TIME

and

TIME

buttons for 3sec to activate clock synchronization to all salve units. Master wall pad

responses with a beeping sound.

4) Key lock

In order to prevent unauthorized access to the system setting, a key lock function is provided to prevent mischief. Hold

down and for 3 sec to activate key lock, symbol lights up. Repeat the same to exit key lock. Only

button is applicable in key lock mode.

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5) Sleep

Press

SLEEP

button to activate or deactivate sleep setting. Sleep is valid in cool or heat mode only.

6) Temperature setting

Press or to enter into temperature setting mode, temperature display area blinks the current set

temperature. Press the above button to adjust the set temperature.

7) Mode setting

Press

MODE

button to change the operation mode.

8) Fan speed setting

Press “

FAN

+-”button to change the fan speed, only low speed available for dehumidification mode.

9) On/Off control

Press to start or stop the air conditioner.

10) Networking control (only master unit wall pad can control other units on the network)

Press

NET

button to enter into networking control mode. Unit area blinking indicates the slave unit

under control. Press

TIME

or

TIME

to select the desired slave unit, unit that offline will be skipped

automatically. Parameters that can be controlled are on/off, set temperature, mode, fan speed, swing and

sleep, operation methods are the same as above. Press

NET

button again to exit networking control

mode.

press

GROUP

buttons to enter into global control mode, lights up. Repeat the same to exit global

control mode. In global control mode, the setting of master unit will broadcast to all the slave units.

11) Parameter browsing

Hold down

CANCEL

and “ ”buttons for 3 sec to enter into parameters browsing mode. Unit display

area shows the slave unit under browsing. Slave unit selection method is the same as in networking control

above. Press

HUMIDIFY

or

HUMIDIFY

to browse various parameters as follow:-

Press

CANCEL

button to exit.

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12) Error indication

When faulty slave unit is detected, unit display area shows the faulty unit address, time area shows the
error code and backlight change to red color. Should there be multiple units having problems, they will be
shown one after another.

For system without master-slave wall pad will indicate unit error codes as above.

Short Time: long pressed “cancel+fan-“ key within 10 seconds powered will send short time command, and
then the main board will come in short time state. Every timer which long than 1 min will short 10 times;

Long pressed “GROUP+SLEEP” key will come in Fahrenheit/Celsius setting. The display of temperature will
trans in Fahrenheit and Celsius.

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CLEANING

Cleaning the air filter

Disconnect the power supply before cleaning and maintenance.

The filters should be regularly cleaned to keep the air conditioner running efficiently. Clean the
filters every two weeks.

EXTERNAL CLEANING AND EXTRA MAINTENANCE

--Disconnect the air conditioner from the electrical supply.

--Wipe external surfaces clean with a damp cloth only.

--Do not use an abrasive cloth and/or solvents as this may damage the surfaces.

--Do not use excessively wet cloth or sponge, as water stagnation could damage the air conditioner and
compromise safety

-- once in a year, evacuating air from both radiator and main coil of the unit as indicated at page 34

How to Proceed:

--Disconnect the air conditioner from the
electrical supply.

--The air filter is behind the radiator. Extract the
filter grating, both sides should be available,
just depend on the installation position.

--Proceed to wash and dry all the filters, and
replace them in the same way.

Attention:

Do not use the air conditioner without filters as
it could be seriously damage the air conditioner

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7. TABLE OF ANOMALIES AND REMEDIES

The assistance must be supplied by a qualified installer or by a specialized service center.

Effect

Cause

Remedy

The unit does not turn on

No power supply
Check that main power is

present(red LED is on)

Check if the master switch is
closed, or if a fuse is burnt

The appliance does not
active the ventilation

Not hot or cold water in the
system

Check the water boiler or
cooler are functioning
correctly

Static mode is activated

Check if static function is
activated on command on
board

The radiator does not reach a
uniform heating temperature

Air present in the inner
circuit of the appliance

Release the air several time

The ventilation speed
increase of decreases
automatically

The electronic control adjust
the comfort level regularly in
Auto mode

Select Cooling or heating
mode and desired fan speed

The unit does not cool or
heat adequately

The temperature set on the
thermostat is either too high
or too low

Check the temperature
setting on the thermostat
and correct it if needed

The air filter is blocked

Check and clean it if needed

Indoor air flow obstacles are
present

Remove anything that might
clog the air flow

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Alarm code definition(Exclusive)

When there is problem with the system, LCD on the top of unit would display the alarm code accordingly.

Description of Alarm

Alarm code

Return air sensor faulty

E1

Indoor coil sensor faulty

E2

PG1/PG2 motor faulty

E3/E4

Anti-cold air protection

E5

Anti-hot air protection

E6

Indoor coil low temperature protection

E7

Local communication error

E8

Mode error Water pump faulty

E9

Water pump faulty

Ea (command on board), E10(wired wall pad)

Indoor coil over heat protection

Eb(command on board), E11(wired wall pad)

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Doppio (Exclusive) - 07072015

Western Airconditioning B.V.
De Wel 10, 3871 MV HOEVELAKEN
Tel. [phone]

www.western.nl