Aerial AD 420 User manual

MADE IN GERMANY
AD 420 /430 11
-2013 Rev. 3
EN
INSTRUCTION MANUAL
Air Dehumidifier
Series AD 420
AD 430

This instruction manual shall not be reproduced, copied and distributed,
neither in parts nor completely, without the manufacturer's written permit.
All rights reserved
The instruction manual is based on the technical and product-specific
parameters. The manufacturer reserves the right to add supplementary
information to the instruction manual.
Any use of the dehumidifier outside the specified conditions and contrary
to its designated use shall lead to the forfeiture of all guarantee claims.
As of: 11_2013

CONTENTS
Page 1 of 32
1Notes on this instruction manual ______________________________ 3
Target groups _______________________________________________ 3
Conventions ________________________________________________ 4
2Safety_____________________________________________________ 5
Safety devices ______________________________________________ 5
Hazards from accessories _____________________________________ 5
Authorised operator __________________________________________ 5
Safety instructions ___________________________________________ 6
3Performance description _____________________________________ 7
Designated use______________________________________________ 7
Scope of delivery ____________________________________________ 7
Optional components _________________________________________ 7
Appliance description _________________________________________ 8
4Optional components_______________________________________ 10
Wall bracket for series AD 420 / 430 ____________________________ 10
Pump-out kit for condensate___________________________________ 10
Method of operation _________________________________________ 11
5Transport and installation ___________________________________ 12
Transport _________________________________________________ 12
Installation_________________________________________________ 14
Operating conditions_________________________________________ 15
Electrical connection_________________________________________ 16
Connect condensate drain hose ________________________________ 17
Connecting the pump-out kit ___________________________________ 18
6Operation and operator control_______________________________ 20
Series AD 420 / 430 operating elements _________________________ 20
Hygrostat control____________________________________________ 21
Commissioning _____________________________________________ 22
Operator control ____________________________________________ 22
7Maintenance and service ____________________________________ 24
Cleaning and inspection ______________________________________ 24
Spare parts and customer service ______________________________ 25
8Troubleshooting ___________________________________________ 26

CONTENTS
Page
2 of 32
9Shutdown, storage and disposal _____________________________ 29
Shutdown _________________________________________________ 29
Storage ___________________________________________________ 29
Disposal __________________________________________________ 30
10 Technical specifications ____________________________________ 31
11 EC Declaration of Conformity ________________________________ 32

NOTES ON THIS INSTRUCTION MANUAL
Page 3 of 32
1 Notes on this instruction manual
This instruction manual is part of the product. It contains important information on
how to transport, install, operate, store and dispose of the air dehumidifier
manufactured by AERIAL properly and safely. Therefore keep this instruction
manual in a safe place. In the section below you will find information about the
target groups of this instruction manual and the conventions used in this
document.
Target groups
This instruction manual addresses all users / operators of the air dehumidifiers
manufactured by AERIAL. These persons must have read and understood the
instruction manual. The physical and psychological requirements for proper and
safety-conscious handling of the dehumidifiers must always be met.

NOTES ON THIS INSTRUCTION MANUAL
Page
4 of 32
Conventions
In this instruction manual you will find notes preceding the operating steps
described to warn you of possible hazards.
DANGER
Type and source of hazard
This symbol in connection with the word "Danger" warns of a
high risk of severe injury or acute danger to life.
Measures to avert danger or immediate measures if the
risk occurs are described in this way
WARNING
Type and source of hazard
This symbol in connection with the word "Warning“ warns of a
risk involving severe injury.
Measures to avert danger or immediate measures if the
risk occurs are described in this way
CAUTION
Type and source of hazard
This symbol in connection with the word "Caution" warns of a risk
of minor or moderate injury and material damage.
Measures to avert danger or immediate measures if the
risk occurs are described in this way
In this box you find further tips and information concerning the
use of the air dehumidifiers.

SAFETY
Page 5 of 32
2 Safety
Safety devices
The series AD 420 / 430 air dehumidifiers were subjected to thorough safety
testing. Improper operation or misuse will cause danger to:
the operator,
the machine and other material property of the user,
efficient operation of the machine.
All persons involved in the installation, commissioning, operation, maintenance
and repair of the air dehumidifiers must
be properly qualified,
closely observe the instructions set out in this manual.
Hazards from accessories
Waste water hoses and air filters must be properly installed and must not disable
the protection devices of the condensation dryers. The operating elements must
always be accessible.
Authorised operator
Operation of or other work on the air dehumidifiers may only be carried out by
persons commissioned and instructed by the user. In the working area the
operator is responsible to third parties.
Responsibilities for the various activities on the air dehumidifiers must be clearly
defined and observed. Unclear competences are a safety risk.
The user must:
make the instruction manual accessible to the operator and
make sure that the operator has read and understood the instruction manual.

SAFETY
Page
6 of 32
Safety instructions
The air dehumidifiers must not be used under the following conditions:
In rooms with potentially explosive atmospheres.
In rooms with aggressive atmospheres, e.g. ammonia, wood acids,
chemicals, excessive chlorine content etc.
In rooms with water with a pH value outside the range from 7.0 to 7.4.
In case of lower pH values there is risk of corrosion for all metals
and risk of damage to mortar-containing materials (joints). Higher
pH values cause skin and mucous membrane irritations and
increased lime deposits.
In rooms with salt or liquids with a salt content > 1%
(incl. brine baths).
In rooms with ozone-treated air.
In rooms with high solvent concentration.
In rooms with extreme dust load.
Please note that excessive air movements in the room may impair
the function of the air dehumidifier because they could disturb the
air flow of the dehumidifier.
In addition the following must be observed when using the air dehumidifier:
Work on electrical equipment may only be carried out by skilled electricians.
Original spare parts or spare parts approved by the manufacturer shall
exclusively be used.
In the event of any malfunction the air dehumidifier must be switched off and
secured against unintended restarting.

PERFORMANCE DESCRIPTION
Page 7 of 32
3 Performance description
You bought an air dehumidifier manufactured by AERIAL and thus decided for a
well-proven product "Made in Germany".
Designated use
The air dehumidifiers are designed exclusively for dehumidifying air at
atmospheric pressure in enclosed indoor rooms.
The air dehumidifier can prevent the formation of condensation water, remove
excessive humidity and keep humidity at a defined constant level.
Operating the air dehumidifiers within the limits of designated use also involves
observing the specified operating conditions (refer to page 15).
Any use of the air dehumidifier not in conformity with or going beyond the
designated use is considered contrary to its designated use and will result in the
forfeiture of all warranty claims.
The operating time of the air dehumidifier until drying of the room
and the humidity to be reached depend largely on the ambient
conditions in the room in which the air dehumidifier is installed.
Scope of delivery
Air dehumidifier
Water collecting tank
AD 420: 8.3 litres
AD 430: 8.3 litres
Condensate drain hose 12 x 2 mm
Power cable
One instruction manual
Optional components
Pump-out kit
Wall bracket

PERFORMANCE DESCRIPTION
Page
8 of 32
Appliance description
Due to its low weight the air dehumidifier can easily be carried by just one
person. Optionally a wall bracket is available for stationary attachment to a wall.
Fig.
1: AD 420 / 430 series air dehumidifier (isometric view)
1 Carrying handle 4 Operating panel
2 Front wall (air outlet) 5 Ventilation port for hygrostat
ventilation
3 Appliance feet
The series AD 420 / 430 air dehumidifiers are equipped with a carrying handle
and four feet. (Fig. 1, item 3)

PERFORMANCE DESCRIPTION
Page 9 of 32
Fig.
2: Series AD 420 / 430 air dehumidifier (rear view)
1 Filter holder 4 Rocker for water collecting tank
2 Air intake area with air filter 5
AMP connector for connecting
a pump-out kit (with dummy plug
for operation without pump)
3 Condensate drain pipe for
condensate drain hose
The water collecting tank is located on a rocker in the air dehumidifier (Fig. 2, item 4).
The rocker is actuated by the weight of the full tank and switches the air
dehumidifier off.

OPTIONAL COMPONENTS
Page
10 of 32
4 Optional components
Wall bracket for series AD 420 / 430
A wall bracket can be used to attach the air dehumidifier to the wall (available on
request).
Pump-out kit for condensate
Optionally the series AD 420 / 430 air dehumidifiers can be equipped with a
pump-out kit. Ask your AERIAL dealer for the pump-out kit. It can be installed in
just a few steps and can be removed just as quickly, too.
Fig.
3: Pump-out kit for series AD 420 / 430 air dehumidifier (figure similar)
1 Drain pipe for hose connection
12 x 2 mm 4 Screws for fixing clamps
2 Cable winder 5
Button for manual pumping
(before transport of air
dehumidifier)
3 Power cable entry

OPTIONAL COMPONENTS
Page 11 of 32
Method of operation
The following diagram illustrates the method of operation of the air dehumidifier:
Fig.
4: Series AD 420 /430 air dehumidifier functional diagram
1 Moist indoor air 5 Dry air
2 Evaporator 6 Compressor
3 Condenser 7 Water collecting tank
4 Fan
The air dehumidifier works on the principle of condensation with heat recovery.
The fan (Fig. 4, item 4) draws the moist air in through a cooling coil (evaporator)
(Fig. 4, item 2). In the cooling coil the air is cooled so far below the dew point that
the water steam of the air condenses and flows into the outlet or pump kit
(option). The cooled and dried air is re-heated at the condenser (Fig. 4, item 3).
Due to the heat pump effect the output air is a few degrees warmer than the
room air drawn in. The resulting energy gain can reach 3 times the electrical
energy consumption.

TRANSPORT AND INSTALLATION
Page
12 of 32
5 Transport and installation
Transport
DANGER
Danger to life due to electric shock
Touching live parts can lead to death.
Switch off the air dehumidifier via the on/off switch,
disconnect the mains plug from the socket outlet and
empty the water collecting tank before moving the unit!
CAUTION
Danger of injury
The air dehumidifier should be transported upright.
Always secure the air dehumidifier against tipping.
CAUTION
Material damage
Pulling the power cable may damage the cable.
Always disconnect the mains plug from the socket outlet
before transport.
Always use the carrying handles to transport the air
dehumidifier.
Free air circulation must be ensured. The air openings
– also the rear and lateral openings – must not be
covered. The free space in front of the lamellae and air
filter must be at least 1 metre; however, for optimum air
circulation in the room it should be considerably larger.
CAUTION
Material damage due to wrong handling of carrying handle
Do not apply force.
In case of correct handling the carrying handle can be
moved without effort.

TRANSPORT AND INSTALLATION
Page 13 of 32
1. Report any obvious damage to the carrier, parcel service, postal service etc.
immediately on delivery and note down the damage on the shipping
document or carrier's document.
2. Remove the packaging material completely and dispose of according to the
local regulations.
3. Check the delivery (refer to page 7) for completeness.
4. Should any transport damage be detected after unpacking of the air
dehumidifier, or should the delivery be incomplete, contact your salesman in
charge or specialised dealer without delay.
We recommend to keep the packaging to ensure safe shipment of
the air dehumidifier in case of any warranty claim.
5. Use the carrying handles to transport the air dehumidifier to the place of
installation.

TRANSPORT AND INSTALLATION
Page
14 of 32
Installation
Proceed as follows to install and transport the air dehumidifier:
1. Install the air dehumidifier in a place in conformity with the operating
conditions (refer to page 15) on a flat surface.
2. Ensure that the condensate can always be reliably collected or discharged.
If a wall bracket is used (optional):
CAUTION
Damage to appliance due to improper operating conditions /
improper installation
Ensure that the wall is suitable for attachment of the wall
bracket and can carry the weight of the air dehumidifier.
Attach the air dehumidifier to the wall using the
accessories included in the delivery.
Align wall bracket along all axes using a spirit level.
1. Mark the required drill holes for the wall bracket on the suitable wall.Align the
wall bracket using a spirit level.
2. Attach the wall bracket to the wall using the dowels and screws included in
the delivery. Alternatively use special dowels for your wall.

TRANSPORT AND INSTALLATION
Page 15 of 32
Operating conditions
Series AD 420 / 430 air dehumidifiers are intended for mobile or stationary use in
closed rooms, on building sites, in water works, indoor swimming pools, garages
and storage rooms.
The series AD 420 / 430 air dehumidifiers work without problems in the
temperature range from +3 °C to +32 °C and the humidity range from 40% to 95%
relative humidity.
Using the appliance in rooms with higher temperatures will cause damage to the
compressor. Using the appliance in rooms with lower temperatures is inefficient
and can result in icing.
Storage of the air dehumidifier at impermissible temperature conditions can
result in damage / problems in case of immediate switching-on. Therefore allow
the air dehumidifier to adjust to the temperature before switching it on.
The suitable location for the air dehumidifier features:
230 V / 50 Hz power outlet
Flat ground
Free space of 1 metre minimum in front of the air outlet lamellae and air filter,
better more!
Air must constantly flow unimpeded through the ventilation port next to the
operating panel.
Select the location in a way to ensure optimum circulation of the dehumidifier air
in your room.
The air dehumidifier must be installed on a flat ground.
By using a condensation dryer humidity values of 40 – 45% r. h.
minimum can be reached. If lower values are required an
adsorption dryer must be used.
Contact your technical advisor.
In case of doubts about the operating conditions your technical advisor can help
you.

TRANSPORT AND INSTALLATION
Page
16 of 32
Electrical connection
DANGER
Danger to life due to electric shock
Prior to commissioning the technical data of the air
dehumidifier must be compared with the conditions
prevailing in the room of installation!
The following items must be checked prior to electrical connection of the air
dehumidifier:
Is the mains voltage in conformity with the voltage of the air dehumidifier?
Are socket and supply system sufficiently fused?
Has an RCCB been installed?
Is the appliance coupler suitable for the building socket outlet?
Is the socket outlet used grounded properly?
1. Connect the mains plug of the power cable with the socket outlet.

TRANSPORT AND INSTALLATION
Page 17 of 32
Connect condensate drain hose
CAUTION
Material damage / insufficient performance due to improper
connection of condensate drain hose
Handle water collecting tank and condensate drain pipe
with care.
In case of use without water collecting tank:
The rear hose end must be in a lower position than the
front hose end (drain pipe): minimum slope 5%, i. e.
5 cm / metre.
Do not immerse the hose end in water (water back-up
may occur).
Never bend the hose.
Do not place any objects on the hose.
Check regularly whether condensate is properly
discharged.
1. Remove the water collecting tank from the rocker.
2. Attach the condensate drain hose to the condensate drain pipe (Fig. 2, item 3)
and fix it with a hose clamp.
3. Lay the hose with a slope (min. 5%, i.e. 5 cm / per metre) from the air
dehumidifier to an outlet.
If the air dehumidifier is installed on a wall bracket or in any other
elevated position, the hose can also be directed down through the
hole in the rocker.