drexel und weiss aerosmart Series Manual

aerosmart S / M / L
Operating, Maintenance and Commissioning

Contents
Technical Data__________________________________________________________2
Customer Information____________________________________________________3
Product Description ........................................................................................................... 3
Proper Application..............................................................................................................3
Unsuitable Applications...................................................................................................... 3
Safety Instructions............................................................................................................. 3
Operation _____________________________________________________________4
Micro-Processor Controller................................................................................................ 4
Main Display...................................................................................................................... 5
Operating Modes...............................................................................................................5
Switching On...................................................................................................................... 5
Switching Off...................................................................................................................... 5
Analogue Room Operating Panel with Heating Mode.......................................................6
Digital Room Operating Panel...........................................................................................8
Maintenance___________________________________________________________10
Safety Instructions for Filter Changes.............................................................................. 10
Changing Coarse Particle Filters..................................................................................... 10
Changing the Fine Particle Air Filter................................................................................ 12
Commissioning ________________________________________________________13
Pre-Requisites for Commissioning .................................................................................. 13
Initial Commissioning....................................................................................................... 13
Decommissioning ............................................................................................................ 13
Menu levels ___________________________________________________________14
Status Level - Viewing Operating Parameters................................................................. 14
Technician Level - Setting Operating Parameters ........................................................... 16
Manufacturer Level - Factory Settings............................................................................. 21
Overview – Current Operating Status.............................................................................. 21
Faults ________________________________________________________________22
Error Messages .............................................................................................................. 22
Faults in the Ventilation System....................................................................................... 23
Important Unit Information (Logbook) _____________________________________24
Page 1

Technical Data
General Data
Mains supply...................................................................................... 230 VAC / 50 Hz
Recommended pre-fuse for the mains cable 1......................................................16 A
Recommended pre-fuse for the mains cable 2......................................................13 A
Heat recovery level
according to VDI 2071 with nominal volumetric flow.............................................85 %
Average heat provision level of the ventilation module .........................................85–93 %
Maximum power consumption of the fans (total) .............................................. 100 W
Maximum power consumption of the immersion heater ........................................2000 W
Operating fluids:
Refrigerating agent.................................................................................R134a / 2.3 kg
Refrigerating machine oil ........................................................................Triton SEZ 32
aerosmart S
Weight...................................................................................................approx. 232 kg
Nominal air quantity ........................................................................................120 m
3
/h
Minimum air quantity.......................................................................................105 m
3
/h
Maximum air quantity at 100 Pa external........................................................180 m
3
/h
Sound power level at nominal air quantity and 100 Pa external:
Housing ..........................................................................................................45 dB(A)
Air inlet............................................................................................................37 dB(A)
Air vent............................................................................................................48 dB(A)
aerosmart M
Weight...................................................................................................approx. 255 kg
Nominal air quantity ........................................................................................160 m
3
/h
Minimum air quantity.......................................................................................140 m
3
/h
Maximum air quantity at 100 Pa external........................................................230 m
3
/h
Sound power level at nominal air quantity and 100 Pa external:
Housing ..........................................................................................................45 dB(A)
Air inlet............................................................................................................48 dB(A)
Air vent............................................................................................................48 dB(A)
aerosmart L
Weight...................................................................................................approx. 255 kg
Nominal air quantity ........................................................................................205 m
3
/h
Minimum air quantity.......................................................................................180 m
3
/h
Maximum air quantity at 100 Pa external........................................................230 m
3
/h
Sound power level at nominal air quantity and 100 Pa external:
Housing ..........................................................................................................45 dB(A)
Air inlet............................................................................................................48 dB(A)
Air vent............................................................................................................48 dB(A)
Page 2

aerosmart - Operation, Maintenance and Commissioning Page 3
Customer Information
These operating instructions are part of the unit and must remain with it. This manual contains im-
portant notes and tips on operating your compact unit, which protect you from personal injury and
also guarantee a long service life of the unit. The figures all depict the right-hand version of the
device (supply air connection located on the right). All instructions are equally applicable to the
left-hand version (supply air connection located on the left). Please keep the operating instruc-
tions for future reference. Please pay attention to the safety instructions!
Product Description
The devices in the aerosmart series are compact units which consist of a ventilation
module with heat recovery, a domestic water storage tank and a heat pump. The unit is
used to heat the supply air and the domestic water. The aerosmart S, aerosmart M und
aerosmart L units are operated via a micro-processor controller. Although the unit types
differ in terms of their appearance, weight and managed air quantities, these differences
do not affect their operation.
Proper Application
The unit is designed for the ventilation, heating and warm water generation of living rooms
and lounges in passive houses and, if applicable, for near-passive buildings depending
on the calculation and building design.
Unsuitable Applications
No applications other than those specified under proper application are permissible.
The unit must not be used to dehumidify buildings under construction. Drying and heating
a building structure can cause considerable damage to the unit. The ventilation of rooms
with extremely high humidity levels, such as saunas, or heavily contaminated extract air
is also not permitted.
Safety Instructions
WARNING: Indicates that the non-adherence to the recommended safety
procedures could lead to damage to the unit or personal injury.
CAUTION: Indicates that the non-adherence to the recommended safety pro-
cedures could lead to damage to the unit.
NOTE: Helpful information and useful tips.

aerosmart - Operation, Maintenance and Commissioning
Page 4
Operation
The unit is controlled, managed and operated via a micro-processor controller on the unit and a
room operating panel. Two types of room operating panels are available:
Analogue room operating panel with heating mode
• Digital room operating panel•
If the analogue room operating panel is used, the basic settings must be made on the compact
unit (micro-processor controller) during commissioning.
If the digital room operating panel is used; the settings can all be made on either the room operat-
ing panel or the micro-processor controller.
Micro-Processor Controller
The micro-processor controller is located on the ventilation module. It manages the ven-
tilation, room heating and the heating of the domestic hot water.
'Alarm' button: this button illuminates red if the controller transmits an error message.1. Press the button to acknowledge the fault.
'Prg' button: is only required to program the software.2. 'Esc' button: use this button to exit a program item or a menu.3. '4. ↵' (Enter) button: use this button to confirm selected values, settings or menu items.
'5. ↑' arrow key: for scrolling in the menu. Use this button to select individual menu
items and amend the values.
'6. ↓' arrow key: for scrolling in the menu. Use this button to select individual menu
items and amend their values.
Display: the four-line display shows settings and various measurements.7.

aerosmart - Operation, Maintenance and Commissioning Page 5
Main Display
The main display shows the time and date, the current operating mode and the current
values for the room, set-point and actual temperature.
12:11 DI. 09/12/03
AUTOMATIK
Akt. Sollwert: 21.5°C
Akt. Raumtemp.: 20.3°C
If you are viewing a different menu page, simply press the 'Esc' button one or more times
to return to this main display.
Operating Modes
AUTOMATIK: all functions are fully automated in this operating mode. Fan levels acc. to pro-
gramming; water and room heating acc. to the established set-point temperature.
STAND-BY SOMMER: ventilation and heating are deactivated in this operating mode. The
heat pump and the two fans are only activated if the domestic water is heated. An external
switch can be used to switch on the ventilation (or both fans) for an hour, for example, the
light switch in a windowless toilet.
ANLAGE AUSGESCHALTEN: all functions are deactivated.
Press the 'Esc' button until the main display appears.
b
Use the down '↓' or up '↑' arrows to select the desired operating mode.
b
Press '↵' (Enter) to confirm your selection.
Switching On
Select the operating mode AUTOMATIK.
b
Press '↵' (Enter) to confirm your selection.
For further information, see Operating Modes.
Switching Off
Select the operating mode ANLAGE AUSGESCHALTEN.
b
Press '↵' (Enter) to confirm your selection.
For further information, see Operating Modes.

aerosmart - Operation, Maintenance and Commissioning
Page 6
Analogue Room Operating Panel with Heating Mode
Use this room operating panel to set the room temperature and activate the special 'Party'
mode. The LED indicator lights show if the heating is activated and if a filter change or
fault is pending.
Setting the Room Temperature
The dial can be used to adjust the set-point temperature by +/- 3°C. On delivery of the
system, the middle setting is 21.5°C.
This means that the temperature can be adjusted from 18.5°C (dial fully to the left) to
24.5°C (dial fully to the right).
Note: Do not turn the dial too far! The left stop point is at approx. 8 o'clock, the right-
hand stop point is at approx. 4 o'clock.
What room temperature is right for me?
The setting basically depends on your needs. Temperature sensitivity in humans is sub-
jective and differs from one person to the next. Standard settings are between 20 and
23°C.
Environmental influences
As the room operating panel has a temperature gauge to measure the room temperature,
no heat-emitting devices should be placed beneath it or in its immediate vicinity (e.g. tel-
evisions or computers).
Such heat-emitting devices would substantially influence the temperature measure-
ments.

aerosmart - Operation, Maintenance and Commissioning Page 7
A handy hint for greater system efficiency
If possible, find your desired temperature at the start of the heating period.
The system works most efficiently if the set-point temperature is set once and then left
unchanged. Regularly changing this setting uses the top up heater in the room more than
necessary.
Special 'Party' Mode
Pressing the 'Party' button sets the ventilation to fan level 3 for a predetermined period.
Once this period has passed, the fan level automatically returns to the currently set level.
On delivery of the system, the default period is 60 minutes, but this can be adjusted on
the micro-processor controller. The special 'Party' mode cannot be reset by pressing the
button again.
Heating (LED)
This indicator light illuminates if the heating mode is enabled.
Filter/Fault (LED)
LED continually illuminated: coarse particle filter needs replacing.
Please refer to the 'Maintenance' section.
LED flashes: a fault has occurred. The fault type can be viewed on the micro-processor
controller's display screen.
Please refer to the 'Error messages' section.

aerosmart - Operation, Maintenance and Commissioning
Page 8
Digital Room Operating Panel
The digital room operating panel on the ventilation device operates at the same time as
the micro-processor controller. The menu navigation, buttons and scope of operation are
identical.
Setting the Room Temperature
Press the 'ESC' button until the main display appears.
12:11 DI. 09/12/03
AUTOMATIK
Akt. Sollwert: 21.5°C
Akt. Raumtemp.: 20.3°C
b
Press the 'Enter' button. The cursor jumps to the 'Akt. Sollwert'.
b
Use the '↓' and '↑' arrows to set your desired room temperature.
b
Press '↵' (Enter) to save your settings.
What room temperature is right for me?
The setting basically depends on your needs. Temperature sensitivity in humans is sub-
jective and differs from one person to the next. Standard settings are between 20 and
23°C.
A handy hint for greater system efficiency
If possible, find your desired temperature at the start of the heating period.
The system works most efficiently if the set-point temperature is set once and then left
unchanged. Regular changing of this setting results in the top-up heater in the room being
used more than necessary.

aerosmart - Operation, Maintenance and Commissioning Page 9
Special 'Party' Mode
The ventilation is set to fan level 3 for a specific period. Once this period has passed, the
fan level automatically returns to the currently set level. On delivery of the system, the
default period is 60 minutes, but this can be adjusted in the technician level.
Press 'Esc' to go from the main display to the main menu.
Statusebene
Technikerebene
Herstellerebene
Übersicht
b
Press 'Enter' to select the 'Statusebene' submenu.
<STATUSEBENE>
Party-Funktion
Ein mit ENTER:
AKTIV
b
Activate the party function by pressing 'Enter' twice.
b
Press 'Esc' several times to return to the main display.

aerosmart - Operation, Maintenance and Commissioning
Page 10
Maintenance
System maintenance by users is mainly limited to regularly changing the coarse particle filters
in the ventilation module and the fine particle air filter in the outside air unit. The operating unit
provides regular filter change notifications as the system operating hours are counted in the
background. A reminder to change the coarse particle filters is displayed approx. every 60-180
days, according to the managed nominal air quantity (depending on the environment and the filter
class). The fine particle air filter only has to be changed approx. once or twice a year. As the flow
capacity and acoustic level generated by the compact unit are affected by the amount of dirt in the
filters, we recommend that filters are changed regularly. No tools are required.
Caution: Possibledamage totheunit resultingfromdust andcontamination.Thecoarse
particle filters in the unit not only improve your air quality, but also protect the entire ven-
tilation system. The system must not be operated without a coarse particle filter.
Note: The filter should be changed within 2-4 weeks of the 'Filter change' message
appearing..
Safety Instructions for Filter Changes
Caution: The filter change intervals are only valid for a completely run-in system.After
the initial commissioning, the filters can sometimes become very dirty after a relatively
short time (construction dust). In this case, no error message is displayed.
Caution: Filters cannot be washed or vacuum cleaned as this would drastically affect
their functionality. Contaminated filters must always be replaced with clean filters. Filters
should be disposed of in the residual waste.
Caution: For uninterrupted operation of the ventilation unit, we recommend that the
system is serviced by an authorised service partner after two operating years. Local
laws and regulations governing maintenance intervals and procedures must be ad-
hered to.
Changing Coarse Particle Filters
Do not switch off the device or unplug it from the mains as the controller will not detect the change
of filter.
Open the ventilation module's inspection cover.
The cover is held in place by latches and can be removed at the recessed grip. With a slight
tug, without any tools, the cover latches can be released.
b
Remove both filter cartridges.
(See figure; no. 1+2).
b

aerosmart - Operation, Maintenance and Commissioning Page 11
Remove the dirty filter pads.
b
Insert new filter pads and push the cartridges back into the openings.
Take care with the insertion direction! Ensure that airtightness is guaranteed.
b
Reattach the inspection cover.
Ensure that the cover is properly locked in place.
(Contact switch on the control unit must be activated).
b
Unit starts automatically.
b
After changing the filter, press the 'Alarm' button to acknowledge the 'Filter or Filter change'
message on the micro-processor controller.
b
Press '↵' (Enter) to confirm.
b
Note the filter change date in the logbook at the back of this manual.
Spare filter:
Please order the coarse particle filters from your authorised technician.
Part description Number
Spare filter for aerosmart M/L..........................................(10 per packet) 193.0200
Spare filter for aerosmart S .............................................(10 per packet) 193.0892
Fig.: aerosmart M
without inspection
cover
Fig.: aerosmart S without
inspection cover

aerosmart - Operation, Maintenance and Commissioning
Page 12
Changing the Fine Particle Air Filter
The fine particle air filter is located in the outside air unit and not in the compact unit. De-
pending on the composition of the ventilation system, numerous filtertypes can beused. If
the error message 'Change fine particle air filter' is displayed, replace the dirty fine particle
air filter (within 2 - 4 weeks) with a new filter of the same type. For some
filter types, the ventilation direction must be taken into consideration
(marked by an arrow). The filter change must be ac- knowledged
on the controller.
Acknowledge Fine Particle Air Filter
Change to the Technician Level on the main menu of the control.
(The English text in the following tables is for representation only and will not be displayed
on the control.)
b
<TECHNIKEREBENE> Technician Level
Bitte beachten Sie Please consider the
bei Aenderung die manufacturers details
Herstellerangaben! when making changes!
Press the '↑' (up) arrow button once.
b
The operating hours counter for the fine particle air filter appears.
Press the 'Enter' button.
<BETRIEBSSTUNDEN> Operating Hours
FEINSTAUBFILTER fine particle air filter
Summe: ###### sum
Reset: N Reset: No
The cursor jumps to the 'Reset' indicator..
b
Press an arrow button.
The 'Reset': N indicator changes to Yand the 'Summe' indicator is set to zero.
b
Press '↵' (Enter) to confirm.
b
Note the filter change date in your in the logbook at the back of this manual.
Spare filter for the outside air system:
Please order the filters for the outside air system from your authorised technician
directly.
y,p y
type. Fo
consid
know
l
Fig.:
Examples of
external filters

aerosmart - Operation, Maintenance and Commissioning Page 13
Commissioning
Pre-Requisites for Commissioning
The compact unit's water, air, electricity and mechanical connections must conform to the
installation instructions - the boiler must be filled with water and the stopcocks must be
opened.
Caution: The unit must not be operated without complete insulation of the air pipes
(exhaust and outside air) as any condensation could damage the individual unit compo-
nents, such as the electronics or the fans.
Initial Commissioning
Warning: Electrically conductive components can cause serious personal injury! Im-
proper working procedures could damage the unit components. The initial commission-
ing may only be carried out by technicians authorised by drexel und weiss.
When the controller is powered on for the first time, the controller initially performs a self-
test. The main display then appears.
12:11 DI. 09/12/03 Time Weekday date
AUTOMATIK automatic
Akt. Sollwert: 21.5°C set-point temperature
Akt. Raumtemp.: 20.3°C current room temperature
Settings on the Overall System
After initially commissioning the unit, adjust the supply and extract air valve flow rates ac-
cording to the planned flow rates.
b
Measure and record the air quantities.
Decommissioning
Warning: Serious personal injury can result from improper working procedures.
Decommissioning may only be carried out by suitably qualified and authorised
technicians.
Disconnect all electrical connectors from the unit and remove the water and ventilation
connections in accordance with local safety regulations.
The unit still contains both valuable materials and substances that may not be disposed
of in the residual waste. Please deliver your old unit for recycling to a collection point for
recyclable materials. For operating fluids, please refer to the 'Technical Data'.

aerosmart - Operation, Maintenance and Commissioning
Page 14
Menu levels
The individual software areas are divided into levels. Press the 'Esc' button to access the main
menu with the following submenus:
Statusebene Status Level
Technikerebene Technician Level
Herstellerebene Manufacturer Level
Übersicht Overview
Use the arrow keys to select a sub-menu.
Press 'Enter' to confirm your selection.
Status Level - Viewing Operating Parameters
All available measurements and settings can be requested in the status level. The values
cannot be adjusted.
Statusebene
Technikerebene
Herstellerebene
Übersicht
Party-Funktion Shows if the party function is enabled
(EVU-Abschaltung) Shows if the energy supply utility shut down is enabled; only
available with double tariff control and when the surge current
cut off is enabled.
Raumtemperatur Current room temperature (measured by the gauge in the ana-
logue room operating panel or in the external gauge housing).
Temp. Boiler Unten Domestic water temperature in the lower region of the storage
tank.
Temp. Boiler Mitte Domestic water temperature in the middle region of the storage
tank.
Temp. Verdampf.block Current temperature in the heat pump's evaporator block.
Heizen Stufe 1 If the room thermostat requests “heating level 1”, 'YES' appears
here. If no cut-off is enabled (DW priority), the supply air is
heated in the aerosmart.
Heizen Stufe 2 If the room thermostat requests “heating level 2”, 'YES' appears
here. The external room heating is also enabled (start-up and
shut-down delays apply for pellet stoves)
Verdichter Current status of the compressor
MV - Fluessig Current status of the liquid solenoid valve
MV – Heissgas Current status of the hot gas solenoid valve
MV – Luft Current status of the solenoid valve for the air capacitor
Zusatzheizung Current status of the top-up heater in the room

aerosmart - Operation, Maintenance and Commissioning Page 15
Anf. Heizstab Current status of the (optional) immersion heating element in
the boiler
Boilergrenztemp. Überwachung
The boiler is monitored for overheating. Temperature above
68°C = level 1; temperature above 73°C = level 2 (see error
messages Übertemperatur Boiler WP aus - Excess tem-
perature boiler heat pump off).
Aktuelle Stufe Current fan level (0/1/2/3)
Aktuelle Luftmenge Current air quantity in m³/h
Gerätetype Displays the unit type and the current software version.

aerosmart - Operation, Maintenance and Commissioning
Page 16
Technician Level - Setting Operating Parameters
All operation-related settings are made in the technician level. Use the arrow buttons to
scroll through the individual parameters on the menu pages. The cursor always flashes
on the value to be amended.
Statusebene
Technikerebene
Herstellerebene
Übersicht
Selecting the Room Operating Panel
<TECHNIKEREBENE> Technician Level
Bitte wählen Sie Ihr Please select your
Raumbediengerät aus: room operating panel:
ANALOG ANALOG
Select the type of your operating unit (analogue or digital).
Press ' ↵' (Enter) to confirm.
Setting the Domestic Water Temperature
<TECHNIKEREBENE> Technician Level
BW-Sollwert: 42.0°C Domestic water set-point
Zyklisch Aufheizen: N Cyclic heating process: No
Beginn: 04:00 Start
BW-Sollwert
The DW set-point (domestic water set-point) can be set from 37°C to 50°C. If, for example,
the set-point is set at 42.0°C, domestic water heating is enabled as soon as the temperature
in the lower area of the boiler (actual value) falls below this point. On reaching 47.0°C, i.e.
5°C above the set-point, the domestic water heating process is switched off again.
What domestic water temperature is right for me? The usual domestic water temperature is
36-38°C for showering, 37 to 42°C for having a bath and 40 to 45°C for washing dishes. De-
pending on the temperatures you are used to, we recommend a DW set-point temperature
of between 38 and 48°C.
Note: If no warm water is removed for an extended period during the heating period, the do-
mestic water temperature can exceed the predetermined set-point.
Zyklisches Aufheizen
This parameter makes it possible to regularly heat domestic water to 60°C. (immersion heat-
er must be switched on).
The function is regionally stipulated by the legislator (e.g. Switzerland) and is normally not
required.
J = Yes
N = No
Beginn
This setting is used to determine when the cyclic heating process is started. The time set
here is usually one at which a reduced rate electricity tariff is available.

aerosmart - Operation, Maintenance and Commissioning Page 17
Setting the Default Set-Point Room Temperature
Stnd. Sollwert: 21.5°C Standard set-point temperature
Akt. Sollwert: 20.3°C Set-point temperature
Nachtabsenkung: 0.0°C Reduced set-point temperature
Von/Bis: 22:00/06:00 From/ To:
Stnd. Sollwert
When using the analogue room operating panel, the user can turn the dial to adjust the room
set-point temperature by +/- 3°C. The middle dial setting is programmed. The default set-
point can lie between 18 and 24°C.
Note: This option is not available when using the digital room operating panel as the de-
sired temperature is directly programmed on the room operating panel.
Akt. Sollwert
Current set-point: air temperature measured by the room gauge. This value cannot be ad-
justed.
Nachtabsenkung der Raumsolltemperatur
This can be used to reduce the room set-point temperature for a freely definable period of
the day (Default set-point) by up to 5°C.
Von/Bis: 22:00/6:00
Enter the time period for the reduction of the room set-point temperature.
Room Heating Cut-Off
This function can be used to briefly disable the room heating if the temperature in the
domestic water storage tank falls below a specific level. During the cut-off, the heat pump
is only used to heat the domestic water. Two menu pages are available to set the room
heating cut-off:
<TECHNIKEREBENE> Technician Level
Fühlerwahl für Temperature gauge for
Sperre Raumheizung Room heating cut-off
BOILERTEMP.MITTE Middle boiler temp.
This parameter determines the temperature gauge used for the room heating cut-off. If there
is a high level of warm water usage, this parameter can be set to 'BOILERTEMP.UNTEN'.
BOILERTEMP.UNTEN Lower boiler temperature
BOILERTEMP.MITTE Middle boiler temperature

aerosmart - Operation, Maintenance and Commissioning
Page 18
<TECHNIKEREBENE> Technician Level
Sperre Raumheizung Room Heating cut-off
Soll: 35°C Set
Diff: 07.0°C Difference
Soll
By increasing the set-point, the warm water comfort can be increased.
Diff
The 'Difference' value describes the hysteresis, the exceeding of which deactivates the room
heating cut-off.
Setting the Nominal Air Quantities
<TECHNIKEREBENE> Technician Level
Nennluftmenge: Nominal air quantity
### m3/h
(Lüfterstufe 2) (fan level 2)
This parameter is used to program the system's nominal air quantity. Please refer to the
house technology planning for the value to be set.
Note: It is only necessary to enter the nominal air quantity for fan level 2. The air quanti-
ties for levels 1 and 3 are automatically defined with -30% (level 1) and +30% (level 3).
Timeframe for Fan Control
There are two available menu pages for the temporal programming of the fans. The de-
fault level is fan level 2, which does not have to be programmed. This level always applies
when no timeframe is enabled.
Zeitprogramm 1 Time program 1
Lüfterstufe: 1 Fan level
Beginn: 00:00 Start
Ende: 00:00 End
For example, program a timeframe for fan level 1 for the time of day at which the house is
usually empty.
Zeitprogramm 2 Time program 2
Lüfterstufe: 3 Fan level
Beginn: 00:00 Start
Ende: 00:00 End
You can also program a timeframe for fan level 3, for example, for fixed cooking times.
Note: You can set two time programs for fan level 1 or two time programs for
fan level 3.