WTA AIRCO BLIZZARD 1000 User manual

1
FORLI' Italy
©WTA srl -1998
All rights reserved
Printed in Italy
Text and graphics by: VEGA - Forlì
No part of this publication may be reproduced, copied or transmitted in any form or by any means without prior written permission from WTA
srl.
Figures, descriptions, reference and technical data in this manual are given as mere example and are not binding.
Because of WTA policy of continual product and safety improvement, we reserve the right to make changes at any time without notice.
GENERAL INDEX
................................................ Pag. 1÷6
................................................ Pag. 7÷12
................................................ Pag. 13÷18
................................................ Pag. 19÷24
................................................ Pag. 25÷30
................................................ Pag. 31÷36
D
NL
INDEX
Description Page
1.0 Identification...................................................2
1.1 Manufacturer....................................................2
1.2 Definitions ........................................................2
1.3 Transport - Handling - Storage ........................2
1.3.1 Storage conditions ...........................................2
1.3.2 Weight..............................................................2
1.3.3 Overall dimensions ..........................................2
1.3.4 Handling...........................................................2
2.0 Installation ......................................................2
2.1 Authorised personnel .......................................2
2.2 Mounting the air conditioner.............................2
3.0 Instructions and running...............................3
3.1 Air conditioner description and running............3
3.2 Machine safety.................................................3
4.0 How to use the air conditioner .....................4
4.1 Starting and function selection.........................4
4.2 Internal temperature adjustment ......................4
4.3 Air conditioner stopping ...................................4
4.4 Unavoidable dangers .......................................4
4.5 Improper use....................................................4
4.6 Troubleshooting ...............................................4
5.0 Maintenance ...................................................5
5.1 Maintenance operations...................................5
6.0 Inactivity and demounting instructions.......5
6.1 Demounting......................................................5
7.0 Emergency situations....................................5
7.1 Fire fighting ......................................................5
8.0 Technical data ................................................6
8.1 Technical specifications ...................................6
Wiring diagram...............................................37
IMPORTANT
Theversionofthemachinemayvaryaccordingtothe
import country.
I
GB
F
SP

2
FORLI' Italy
1.0 IDENTIFICATION
The identification plate of the machine is affixed
outside the plate casing (see fig. 1).
1.1 MANUFACTURER
WTA srl
Via Virgilio, 3
47100 FORLI' - ITALY
P. IVA 00718330400
1.2 DEFINITIONS
In this handbook, three types of “safety graphics” are
used to point out different levels of danger or any other
important information:
DANGER
Drawstheattentiontopotentiallydangeroussituations
which may cause serious personal injury.
CAUTION
Drawstheattentiontopotentiallydangeroussituations
whichmaycausepersonalinjuryormaterialdamage.
IMPORTANT
Draws the attention to situations which may cause
malfunctioning or damage to the machine.
1.3 TRANSPORT - HANDLING - STORAGE
1.3.1 STORAGE CONDITIONS
Theairconditionerisprotectedagainstsudden impact by
suitablepackingconsistingofcardboard,polystyreneand
a wooden frame support.
The air conditioner should be stored horizontally in a dry
and well-ventilated room.
1.3.2 WEIGHT
Gross weight (including packing):
Mod. 1000 .......................................... Kg 26
Mod. 1300 .......................................... Kg 28
1.3.3 OVERALL DIMENSIONS
See fig. 2:
Model
1000-1300
A................................. mm 940
B................................. mm 695
C................................. mm 225
D................................. mm 300
E.................................. mm 640
F.................................. mm 340
1.3.4 HANDLING
The packed air conditioner can be handled by normal
means of lifting and transport.
Boxes are fitted with spacers which enable the use of
manual fork-lifts.
DANGER
Strictly observe the accident prevention precautions
and safety regulations during lifting and transport,
andalwaysusemachines withahighermaximumcapacity
than the load to be lifted.
2.0 INSTALLATION
2.1 AUTHORISED PERSONNEL
The air conditioner shall be installed onto the vehicle -i.e.
camping-cars, caravans, motorhomes, only and
exclusivelybyskilledtechniciansorworkshops,authorized
by W.T.A.
According to the vehicle dimensions and to the real air
conditioning needs one or more units can be installed.
If the installation is carried out by non-authorized
technicians or workshops, W.T.A. disclaims any
responsibility for the unit safety and efficient running
according to the M.D. 89/392/EC.
DANGER
The instructions given in sections 2.2 are addressed
to qualified technicians only.
2.2 MOUNTING THE AIR CONDITIONER
BLIZZARD air conditioners can be installed on openings
with following sizes: 35x35 cm. up to 40x40 cm max. It is
possible to use an existing air inlet or drill a new one. In
such case, make sure that the roof can tolerate the air
conditioner weight and, in case, stiffen it suitably.
Remove the skylight cover (fig. 3).
Carefully clean the surfaces around the installation
opening,removeany waste,and fillanysurrounding hole

3
FORLI' Italy
or deformation with filler or silicone (fig. 4).
Set the supply mains with 1.5 sqmm section (AC 230V -
50 Hz) close to the roof opening .
Drill a hole on the diffuser surface close to the supply
cables (fig. 5).
Lay the diffuser on the opening centre, paying attention
thattheadjustinggratepositioncorrespondstotherunning
direction (check as well the diffuser correct position from
the vehicle interior).
Apply some silicone around the diffuser and between
diffuser and roof (fig. 6).
Secure the diffuser to the roof by means of the screws
provided, then drill some ø 5 mm holes close to the pre-
arranged seats and apply silicone to the diffuser external
edge.
Fittheself-tappingscrewmetalstiffenersintotheirrelevant
seats.
Lay the supplied seal around the diffuser edge, paying
attention that the seal joint is opposite to the running
direction (fig. 7).
Connect the wires to the switch by means of the “faston”
provided,and thegroundwirebymeansofaterminal(fig.
8).
CAUTION
Alwaysmakesurethatcablesarenotpowersupplied
before connecting them.
Settheclosed airconditioner onthe roof.Opentheupper
coverandconnectthelowerparttothepreviouslymounted
diffuser (fig. 9), always taking into account the running
direction.
Connect the diffuser to the air conditioner using the
connectors provided (fig. 10).
Secure the air conditioner to the diffuser by the six
supplied screws (fig. 11).
CAUTION
Secure the base to the vehicle roof using the six
screwsshowninfig.11.Theremainingholesmustbe
free to allow the condensation water to drain out.
Carefully fix the cover (fig. 12)
Make sure that the fan rotates troubleless (fig. 13).
Thenfixtheframewithinthevehiclebyusingthepredrilled
holes as reference point (fig. 14).
3.0 INSTRUCTIONS AND RUNNING
IMPORTANT
Thefirmdoesnottakeanyresponsabilityfordamages
arising from malfunctionings of the air conditioner.
3.1 AIR CONDITIONER DESCRIPTION AND
RUNNING
The air conditioner consists of an A.C.-power supplied
compressor, which sets the liquid under pressure in a
suitablebattery(coil)andheatsit.Subsequentlytheliquid
is conveyed to a second low pressure “battery” where it
expands, absorbs heat and refrigerates the air coming
from the radiator.
Air is conveyed to the vehicle through the special fan at
adjustable speed.
Temperature can be adjusted by the suitable thermostat.
Lattercansupplyfreshanddehumifiedairinsummerand
warm air in winter (if fitted).
3.2 MACHINE SAFETY
For a safe utilization of the air conditioner, some checks
shall be carried out before switching it on:
• Check that the water trap holes are not clogged.
• Check that voltage and frequence given in the
identification plate comply with the values required by
the local regulations/provisions.
• Check that neither the air inlet nor the air outlet and
circulation inside the ducts and the air inlets are
hindered.
DANGER
• Keep flammable substances like petrol, paints,
solvents, etc. away from the air conditioner.
• Donottouchtheairconditionerorits connections
with wet hands.
• Any check of the electric parts shall be made with
engine stopped and by authorized technicians
only.
The air conditioner is manufactured according to the
safety rules given in the Conformity Declaration.

4
FORLI' Italy
4.0 HOW TO USE THE AIR CONDITIONER
4.1 STARTING AND FUNCTION SELECTION (fig. 14
and 15)
1) Ambient thermostat.
2) Double-way switch.
3) Main switch 0/1.
4) Warm/cold switch (if fitted).
Toswitchtheairconditioneron,pushtheswitch“3”topos.
1.
4.2 INTERNAL TEMPERATURE ADJUSTMENT
Themachineisfittedwithanambientthermostatoperated
by a blue/red knob. To get the required temperature, it is
enough to set the chosen colour to the fixed reference
point(pos.Afig. 16).Bynearing the knobbluearea tothe
reference point (pos. Afig. 16), the air temperature
decreases, provided that switch (pos. 4fig. 14) is set to
"cold".
By nearing the knob red area to the reference point (pos.
Afig.17),theairtemperatureincreases(iffitted),provided
that switch (pos. 4fig. 14) is set to "warm".
IMPORTANTE
The heating function (if fitted) cannot replace the
heater of the whole vehicle; it is only designded to
warm the ait in cool days.
4.3 AIR CONDITIONER STOPPING
Push the switch “3” to pos. "0" for the unit stop.
DANGER
Never obstruct the air inlets and outlets.
The air conditioner fitted compressor runs during the
refrigerating phase of the unit. If switched off and on at
once,itmightgetdamaged.Therefore,itisveryimportant
TO WAIT ALWAYS 3 MINUTES AT LEAST before
attempting to switch it on again.
IMPORTANT
Always use ground plate fitted sockets.
4.4 UNAVOIDABLE DANGERS
CAUTION
Never introduce your hands or other objects within
the air inlet openings.
4.5 IMPROPER USE
The air conditioner shall be installed by skilled and
authorized technicians only according to the
Manufacturer’s instructions.
The air conditioner shall be used only and exclusively for
the purposes for which it has been designed and
manufactured.
4.6 TROUBLESHOOTING
We have listed below some problems which may occur,
alongwiththeirrespectivecausesandpossiblesolutions.
Inthecaseofproblemswhicharenotlistedbelow,please
seekadvicefromanauthorisedafter-salesservicecentre.
Wewishtopointoutthatmostoftheclaimswereceiveare
duetoimproperuseratherthantofaultsofourequipment,
and namely:
• Too large vehicle.
• Vehicle walls are not insulated.
• Vehicle with too large windows (in such case, we
recommend to use heavy and insulating blinds).
• The vehicle is a camper with a walk-through driver
compartment.
• Doors are frequently opened.
• Air comes in from the openings.
• Too many people inside the vehicle.
• Voltage less than 230V.
1 The airco does not start.
Causes and Solutions:
1.1 No power is supplied.
(Check the electric connection).
2 Theaircoruns,butthecompressordoesnot start.
Causes and Solutions:
2.1 Thermostat with too high temperature.
(Lower the thermostat temperature).
2.2 The ambient air is less than 18°C.
(No solution).
2.3 Switch is not set to "cold" position.
(Set it to cold).
3 The compressor stops running.
Causes and Solutions:
3.1 Low voltage.
(Less than 200V).

5
FORLI' Italy
3.2 Defective condenser.
(Replace).
3.3 Defective compressor thermal switch.
(Replace).
3.4 Defective thermostat.
(Replace).
3.5 Damaged compressor.
(Replace).
4 Theairconditionerdoesnotproducecoldenough.
Causes and Solutions:
4.1 Thecoolingfanofthecondensationbatteryisjammed.
(Set the fan free by mounting the cover correctly).
5 Water infiltrations within the vehicle.
Causes and Solutions:
5.1 Water trap holes clogged.
(Clean them, see fig. 11).
5.2 Frame damaged during the installation.
(Fix it with glue or replace it).
6 The air conditioner does not produce warm
enough (if fitted).
Causes and Solutions:
6.1 Switch is not set to "warm" position.
(Set it to warm).
6.2 Thermostat with too low temperature.
(Increase the thermostat temperature).
6.3 Damaged electric resistance.
(Replace).
5.0 MAINTENANCE INSTRUCTIONS
IMPORTANT
Use only genuine spare parts. The air conditioner
may get damaged if other than genuine parts having
a different quality standard are used.
To make sure that the air conditioner keeps working
tomaximumefficiency,itisessentialthatitisproperly
and regularly maintained. Additionally, a proper
maintenance grants the air conditioner a longer
lifetime.
5.1 MAINTENANCE OPERATIONS
Tograntagoodrunningtoyourequipment,werecommend
you to clean the air conditioner interior once or twice per
year.
Beforecarryingouttheoperationsbelow,cuttheequipment
off and wait until its parts get cool.
A) Demounttheexternalcover,cleantheheatexchangers
(evaporator and condenser) with a brush (or
compressedair).Takeawayanydirt.Payattentionnot
to damage the heat exchange fins.
B) Check that the water trap holes are not clogged.
6.0 INACTIVITY AND DISMANTLING
6.01 DISMANTLING
If the unit demounting is required, please adress to
authorized workshops.
7.00 EMERGENCY SITUATIONS
7.01 DEALING WITH FIRE HAZARDS
In case of fire, never open the air conditioner case and
make use of type-approved fire-extinguishers.

6
FORLI' Italy
8.0 TECHNICAL DATA
8.1 TECHNICAL SPECIFICATIONS
AIRCO BLIZZARD 1000 1300
Refrigerating yield Btu 3450 4800
Cooling consumption W 460 650
Heating capacity (if fitted) W 600 600
Power supply V - Hz 230 - 50 230 - 50
Air conditioned cu.m/h 280 280
Max. air conditioned with insulated walls cu.m 16 20
Dimensions mm 940x695x225 940x695x225
Weight kg 26 28
The above features can be modified without prior notice.

37
FORLI' Italy

s.r.l.
Via Virgilio 3, 47100 Villanova - Forlì (Italy)
Tel. [phone] - Telefax 0543/756631
AN ELECTROLUX COMPANY

AN ELECTROLUX COMPANY
1000
1300
Operating and Maintenance Handbook
Libretto Istruzioni Uso e Manutenzione
Bedienungs- und Wartungsanleitung
Bedienings- en onderhoudshandleiding
Livret d'Usage et d'Entretien
Manual de instrucciones de uso y mantenimiento
Read all instructions and advice given in this handbook carefully before use.
Prima di utilizzare il condizionatore leggere attentamente le istruzioni e le indicazioni riportate nel seguente manuale.
Vor dem Gebrauch des Klimaanlage diese Bedienungs- und Wartungsanleitung aufmerksam lesen.
Lees alle aanwijzingen en adviezen in deze handleiding nauwkeurig door voordat u het airconditioningssysteem in gebruik neemt
Avant d’utiliser le climatiseur, lire attentivement les instructions et les renseignements du présent livret.
Antes de utilizar el acondicionador, leer con cuidado las instrucciones y las indicaciones del manual.
Ed.02/1998

FORLI' Italy
FIG. 3 FIG. 7
FIG. 2 FIG. 6
FIG. 1 FIG. 5
F
DE
A
C
B
F
FIG. 4 FIG. 8

FORLI' Italy
FIG. 9 FIG. 13
FIG. 10 FIG. 14
FIG. 11 FIG. 15
FIG. 12 FIG. 16
21
0
12
34
3 42
A