Rosenberg SupraBox COMFORT 800H, SupraBox COMFORT 1500H, SupraBox COMFORT 1100H, SupraBox COMFORT 3500H, SupraBox COMFORT 2000H Operating Instructions Manual

BA 112 BB 11/12/A/SupraBox 1

BA112BB07/11/A/ SupraBox 1

Rosenberg Ventilatoren GmbH · Maybachstraße 1 · 74653 Künzelsau-Gaisbach

Tel.: [phone] · Fax.: [phone] · Email: [e-mail] · www.rosenberg-gmbh.com

EN

Betriebsanleitung

Operating instruction

SupraBox … H

SupraBox … H

Compact ventilation units

Series SupraBox COMFORT

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

BA 112 BB 11/12/A/SupraBox 1

1

Index Page

1. General Safety Information ............................................................................................... 2

1.1 Warnings regarding industrial safety measures .............................................................. 2

1.2 Safety Instructions .......................................................................................................... 3

2. Technical Manual ............................................................................................................... 4

2.1 General Description ........................................................................................................ 4

2.2 Device Overview ............................................................................................................. 5

2.3 Device drawings .............................................................................................................. 8

3. Operating Conditions ...................................................................................................... 10

4. Delivery, Transport and Storage .................................................................................... 11

4.1 Delivery ......................................................................................................................... 11

4.2 Transport ...................................................................................................................... 11

4.3 Storage ......................................................................................................................... 14

5. General Assembly Instructions ...................................................................................... 15

5.1 Unit Installation ............................................................................................................. 15

5.2 Assembly ...................................................................................................................... 15

5.3 Connection of the ventilation ducts to the unit .............................................................. 16

5.4 Electric Installation ........................................................................................................ 16

5.5 Connection of the condensate, exhaust air and overflow pipes .................................... 16

6. Startup and Operation ..................................................................................................... 17

6.1 General Startup information .......................................................................................... 18

7. Maintenance and Cleaning .............................................................................................. 19

7.1 General Maintenance Instructions ................................................................................ 19

7.2 General Cleaning Instructions ....................................................................................... 19

7.3 Maintenance and Cleaning of the housing and control ................................................. 20

7.4 Fans .............................................................................................................................. 21

7.4.1 Setup ...................................................................................................................... 21

7.4.2 Operation ................................................................................................................ 22

7.4.3 Maintenance and Cleaning ..................................................................................... 22

7.5 Reverse flow heat exchanger........................................................................................ 23

7.5.1 Startup .................................................................................................................... 23

7.5.2 Operation ................................................................................................................ 23

7.5.3 Maintenance and Cleaning ..................................................................................... 24

7.6 Panel filters ................................................................................................................... 24

7.6.1 Startup .................................................................................................................... 24

7.6.2 Operation ................................................................................................................ 25

7.6.3 Maintenance and Cleaning ..................................................................................... 25

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

BA 112 BB 11/12/A/SupraBox 1

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1. General Safety Information

1.1 Warnings regarding industrial safety measures

The following icons inform about certain hazards or safe use.

Attention! Danger! Safety Advice!

Hazard by electricity or high voltage!

Crush hazard!

Danger Overhead Hazard

Caution ! Hot Surface!

Important Advice, Information

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

BA 112 BB 11/12/A/SupraBox 1

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1.2 Safety Instructions

At the time of delivery the Rosenberg SupraBox Comfort series is constructed and
produced according to the latest technical standard. Substantial tests of material,
function and quality guarantee a high value and a long lifetime. When improperly
used by untrained staff or not according to the instructions these machines can be
dangerous.

Read these instructions carefully prior to unpacking, assembling or performing the
maintenance!

The system may only be used after installation

• The following work must only be performed by trained specialists:

- Assembly

- Electrical connection

- Connection of power terminals

- Maintenance work

• Please use the compact ventilation appliance only according to the regulations within the
prescribed power limit. The power limit is included in the technical data specification or can be
found on the name plate. One single instance of the prescribed power limit being exceeded
will inevitably cause damage to the built-in components which results in the safe use of the
appliance being compromised.

• Only approved material handling equipment may be used. Please consult your local
institutions or relevant regulations for the appropriate range.

• Prior to working on electric machines these have to be disconnected from all poles
(padlockable selector switches with appropriate capacity and function are included in the
delivery and pre-installed).

• After completion of work on the RLT-appliance the responsible person must make sure that
nobody is working on the installation before it is re-started.

• Authorized persons must be instructed in the working area according to the normal accident
prevention regulations of the relevant

Employer’s Liability Insurance Associations and be trained

in their working area.

See also:
BGV A1 „General Prescriptions“
VBG 5 „Power-driven working equipment“
VBG 9a „Load bearing equipment for hoisting operations“
BGV D27 „Industrial trucks“
BGV A3 „Electrical systems and equipment“

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

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2. Technical Manual

2.1 General Description

• According to the EC Machinery Directive stationery ventilation appliances have to be
electrically connected to a breaker and a series fuse. It must be possible to disconnect the unit
from all poles!

• The unit corresponds to the requirements of VDI 6022 as well as DIN 1946 T6.

• Depending on the size of the installation the range of application extends to power volume of

3500 m³/h with a transport density of 1,3kg/m³.

• The application area includes air treatments: filtration, heating, cooling and moving. In addition
heat recovery with high efficiency is used.

• Energy-efficient compact ventilation unit. Heat recovery through an aluminium reverse flow
recuperator with very high efficiency. It can be easily cleaned and for flushing equipped with
pans with gradient all around.

• The unit is mounted on a base frame with four adjustable feet, for balancing uneven bottoms,
as well as for the outside installation. Adjustment range: 45 – 70 mm

• The compact housing consists of corrosion-resistant, double skin, coil coated, galvanised
sheet steel. Quality: DX51D + zinc 275 + additional org. coating min. 25 µm RAL 7035; metal
gauge 1.00 mm.

• Side wall panels, housing bottom, housing cover, rear panel and doors (with double-skin) are
equipped with 60 mm internal acoustic and heat insulation (min. 33 kg/m³;λ = 0,04 W/m x K).

• The direct drive fans with backward curved centrifugal impellers are installed in the unit with
vibration absorption. The drive will be effected by two energy-saving and 100% infinitely
variable EC motors.

• Filtration of external air F7 and exit air M5 through particulate panel filters.

• The ventilation unit will be delivered with integrated control. This is easy to maintain and

installed in a terminal box on the cover. It is completely wired and tested by the manufacturer.

• The unit is clearly labelled with symbols and text for easy operation. An external controller for
the managing the whole system is included in the scope of delivery.

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

BA 112 BB 11/12/A/SupraBox 1

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2.2 Device Overview

SupraBox Comfort 800H 1100H 1500H 2000H

Housing

Doubleskin 60 mm

frameless

Doubleskin 60 mm

frameless

Doubleskin 60 mm

frameless

Doubleskin 60 mm

frameless

Size

(L x W x H) [mm]

1330 x 640 x 1220

Incl. Regulation box

and adjustable feet

1500 x 660 x 1420

Incl. Regulation

box and adjustable

feet

1670 x 700 x 1520

Incl. Regulation

box and

adjustable feet

1800 x 760 x 1660

Incl. Regulation

box and

adjustable feet

Operating point

800 m³/h at

150 Pa

1100 m³/h at

200 Pa

1500 m³/h at

200 Pa

2000 m³/h at

250 Pa

Fans

Backwards curved, free running, driven by highly efficient Rosenberg – EC-external-

rotor motors with integrated electronics

Power Input in the

operating point

2 x 200 W 2 x 310 W 2 x 470 W 2 x 800 W

SFP-Value

In the operating point

900 Ws/m³ 1015 Ws/m³ 1128 Ws/m³ 1440 Ws/m³

SFP class

in the operating point

SFP2 SFP2 SFP3 SFP3

Heat recovery

Efficiency

Reverse flow- plate heat exchanger up to η=92%*, corresponding to WRG-classes

H1

*Maximum value on condensation, heat recovery dependant on the operation

condition

Air filter

Panel filter Incoming air: F7 Extracted air: M5

Air Supplies

horizontal

DN 315
2,9 m/s

horizontal

DN 355

3,1 m/s

horizontal

DN 400
3,3 m/s

horizontal

DN 400
4,4 m/s

Control

*Temperature

control

*Temperature

control

*Temperature

control

*Temperature

control

Max. total current

consumption

3 A 4 A 6 A 9 A

Overall sound

power level

Suction side L

WA5

Pressure side L

WA6

Housing L

WA2

51 dB(A)

69 dB(A)

49 dB(A)

52 dB(A)

76 dB(A)

54 dB(A)

55 dB(A)

79 dB(A)

56 dB(A)

56 dB(A)

79 dB(A)

54 dB(A)

Weight incl. Control

215 kg 260 kg 298 kg 377 kg

*Temperature control with control of the optional accessories according to the unit size and
equipment.

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

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SupraBox Comfort 3500 H

Housing

Doubleskin 60 mm

frameless

Size

(L x W x H) [mm]

2320 x 840 x 1925

Incl. Regulation

box and adjustable

feet

Operating point

3500 m³/h at

400 Pa

Fans

Backwards curved, free running, driven by highly efficient Rosenberg – EC-external-

rotor motors with integrated electronics

Power Input in the

operating point

2 x 1600 W

SFP-Value

In the operating point

1645 Ws/m³

SFP class

in the operating point

SFP4

Heat recovery

Efficiency

Reverse flow- plate heat exchanger up to η=92%*, corresponding to WRG-classes

H1

*Maximum value on condensation, heat recovery dependant on the operation

condition

Air filter

Panel filter Incoming air: F7 Extracted air: M5

Air Supplies

horizontal

600 x 600 [mm]

Control

*Temperature

control

Max. total current

consumption

5,0 A

Overall sound

power level

Suction side L

WA5

Pressure side L

WA6

Housing L

WA2

61 dB(A)

85 dB(A)

57 dB(A)

Weight incl. Control

530 kg

*Temperature control with control of the optional accessories according to the unit size and
equipment.

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

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1 Panel filter exhaust air M5 7 Condensate pan

2 Panel filter incoming air F7 8 Exhaust fan with EC-motor

3 Adjustable rounded base 9 Incoming air fan with EC-motor

4 Bypass flap 10 Control box incl. control system

5 Maintenance pan 11 Main breaker

6 Reverse flow heat exchanger

Inc. air

Exhaust

air

Ext. air

Exh. air

1

2

10

9

8 64 3 5

7

11

Picture: drawing of the device overview

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

BA 112 BB 11/12/A/SupraBox 1

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2.3 Device drawings

Suprabox 800 H

• Condensate drain through the hose sleeve 19,4 x 3,7

Suprabox 1100 H

• Condensate drain through the hose sleeve 19,4 x 3,7

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

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Suprabox 1500 H

• A hose with appropriate hose sleeve is recommended for the condensate drain 19,4 x 3,7

Suprabox 2000 H

• Condensate drain through the hose sleeve 19,4 x 3,7

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

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SupraBox 3500 H

• Condensate drain through the hose sleeve 19,4 x 3,7

3. Operating Conditions

The Rosenberg compact series SupraBox Comfort is exclusively made for treating air
or gaseous media according to the criteria stated below!

The compact ventilation appliancet is suitable for the conveyance of:

• Clean air, low dust or low greasy air

• Slightly aggressive gases or fumes (consult the factory in either case!)

• Gaseous media up to a density of 1.3 kg/m³

• Gaseous media up to a relative humidity of max. 95 %

• Gaseous media in a temperature range of -16 °C up to +40 °C. (higher or lower ranges require

special modifications!)

• Non-explosive gaseous media

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

BA 112 BB 11/12/A/SupraBox 1

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H

W

L

Picture: Transport sizes Suprabox

4. Delivery, Transport and Storage

4.1 Delivery

The Rosenberg-Suprabox must be checked for damages immediately on delivery.
This should be made before unloading the device from the transport vehicle.
Furthermore the completeness of the delivery scope must be checked in accordance
with the freight documents. Missing parts or damages must be noted immediately on
the freight documents and signed by the driver of the transport vehicle.

4.2 Transport

The unit will be delivered on a customized single use pallet and can be moved with a forklift or a pallet
truck. The transport dimensions (incl. control box) and weights can be found on the drawing below:

Suprabox L W H Weight

800 H 1700 mm 750 mm 1445 mm 245 kg

1100 H 1700 mm 750 mm 1645 mm 290 kg

1500 H 2000 mm 850 mm 1745 mm 335 kg

2000 H 2000 mm 850 mm 1885 mm 415 kg

3500 H 2400 mm 950 mm 2150 mm 570 kg

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

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Avoid twisting, bending or other physical damages of the housing when hoisting
the device!

• Keep the control doors closed during transport!

• Always use proper hoisting machines!

• Please note that excessive loads on the housing may cause damages!

• For your own safety use appropriate anti-slip gloves and safety shoes for the transport.

For the transport with forklift or pallet truck please note the following
instructions:

• The transport with industrial trucks requires regular training of the
responsible staff according to the accident prevention regulation (in
Germany BGV D27 „Flurförderfahrzeuge“).

• The loading capacity of the material handling equipment must always be
checked before loading!

• The fork length of the material handling equipment must be greater than the length of the
transport pallet to be picked up. Forks which are too short cause damage to the floor panels or
the device frame.

For the transport with a hall crane or a truck crane please note the following instructions:

• The transport with cranes or lifting fixation devices requires regular
training of the responsible person according to the accident prevention
regulation (in Germany VBG 9a „Lastaufnahmeeinrichtungen im
Hebezeugbetrieb“)

• Danger Overhead hazard! It is forbidden to stay below floating loads!

• For direct load attachment (underdragging the load) only use exclusively licensed, undamaged

fabric slings with sufficient contact surface and edge protection. (e.g.: webbing slings
according to EN1492-1 or round slings according to EN1492-2)

Picture: Unloading by forklift

Operation and Maintenance Manual for Rosenberg

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Comfort

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Heavy load

Low load

Picture: load distribution

• It is forbidden to use chain slings or slinging ropes for the direct load attachment!

• The slings should not have an inclination angle of more than 60°!

• Please note that when lifting the functional part the distribution is usually out of balance! This

is not visible from outside of the functional part!

• Only use carrying devices with the same length.

• Make careful and none jolting movements.

• Avoid setting the load down hard and bumping

Inclination angle
greater than 60°

Inclination angle
smaller than 60°

Picture: Transport by crane

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

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4.3 Storage

•

Make sure to store the unit in a dry and weather protected area!

• On receipt of the merchandise the packaging, film and tape must
immediately be removed in order to avoid condensation water!

• Open pallets must be covered by tarps. Protect the functional parts against
pollution (e.g. chips, stones, wires etc.).

• Also the weatherproof functional parts must be covered, as the weather resistance can only be
guaranteed after the installation.

• Keep the storage temperature between -20°C und +40°C, avoid high humidity.

• If storing the unit for more than 12 months make sure the fan turns freely before installation.

.

►

Manual rotation of the fan

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

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5. General Assembly Instructions

5.1 Unit Installation

The Rosenberg-SupraBox Comfort must exclusively be installed on a foundation or
a substructure which is professionally constructed..

Assumption of static or dynamic building functions by Rosenberg-devices must be
excluded. Otherwise the warranty by Rosenberg Ventilatoren GmbH will expire for
damages to the device or resulting damages to the building.

Installation and assembly may only be made by trained staff, familiar with the specific accident
prevention regulations and general safety-related and occupational health laws.

In addition to the structural requirements also consider the following instructions for the construction
of the foundation or substructure:

• The installation area must be level and without torsion.

• The horizontal inclination angle of the installation area may not exceed a maximum of 2%.

• Choose an installation space with an unobstructed condensate drain and water trap, as well

as sufficient gradient of the condensate line.

• The height level between installation area and floor must guarantee a professional condensate
drain from the functional parts.
► Consider the height of the waste trap!

Even out slight area unevenness by assembled rounded bases.

In order to ensure low noise operation, consider the following advice:

• Low air velocity in the duct

• Do not install the device on a wooden ground

• Use a vibration resistant substructure

5.2 Assembly

Get an overview of the quantity and description of all functional parts with help of the
enclosed technical documents. Under item 2.2 “device overview” or “item 2.3 device
drawings” respectively there is a detailed drawing with all relevant dimensions.

For the installation room or installation area of the SupraBox, make sure that there
is sufficient space for operating and maintaining the unit. Permanent access must

be guaranteed.
The compact ventilation appliance will be completely wired for plug-in and tested by the manufacturer.
It is equipped with an integrated control system.

Operation and Maintenance Manual for Rosenberg

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Comfort

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Only the connections for the ventilation ducts, condensate and water must properly installed on site.
Furthermore the electrical supply as well as external sensors or optional accessories such as duct
heaters etc. must be connected.

The remote operator control must be connected to the control system using the provided cable and
placed at the ventilation system or nearby. The electrical connection has to be made according to the
wiring diagram, see the additional operating manual control for the control system.

5.3 Connection of the ventilation ducts to the unit

The connection sleeves of the Rosenberg-SupraBox Comfort are provided as circular
tube spigots, with T-sealing lip sizes as shown in the unit drawings. The duct system
must be installed according to the valid technical standards and regulations and must
support the dead load by installations of the customer. Additional requirements
concerning sound insulation separate vibration isolation can be provided as elastic
connections. These are not standard in the scope of delivery, but offered as

accessories. The fresh air and exhaust air duct must be isolated against condensate water.

5.4 Electric Installation

Only a professional electrician may install the electrical connection according to the
VDE-regulations. The connection must properly be made according to the wiring
diagram and the configuration scheme.
All screw joints must be checked before Setup and retightened if necessary. Further
installation instructions can be found on the separate manual of the control.

5.5 Connection of the condensate, exhaust air and overflow pipes

The Suprabox is equipped with maintenance and condensate pan. As you can see in the device
overview, the maintenance pan is situated in the fresh air and the condensate pan in the exhaust air.
Both pans have a flexible tube at the bottom side of the unit with an inner diameter of 19.4 mm. Do
never remove them and check the correct seating before the unit is assembled.
The exhaust air pipe of the maintenance pan is only used for cleaning. Therefore it is necessary to
seal the tube of the maintenance pan by appropriate material (e.g. tape) in order to avoid a volume
flow leakage in this area.
Especially in the cold seasons there could be condensate in the exhaust air duct of the reverse flow
heat exchanger. In order to make sure the condensate drains correctly via the condensate pan and to
avoid air leakage, it is important to attach a vacuum trap as shown in the drawing below. Alternatively
a hose can be fixed at the unit to replace a trap. The minimum sizes must be observed by the
customer. Fill the trap with water before startup. Protect the trap against desiccation and in cold

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

BA 112 BB 11/12/A/SupraBox 1

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areas against frost. Do not connect the spout to the sewage system. Alternatively a vacuum trap with
non-return ball can be used, but make sure that there is a suction lift of at least 70 mm.

Picture:: Minimum size trap

Devuce connectionb

Operation and Maintenance Manual for Rosenberg

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Comfort

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6. Startup and Operation

6.1 General Startup information

Prior to the startup of the compact ventilation unit observe the instructions below:

• Inspection of the proper installation, connection and assembly

• Free air connection, free suction holes

• Free running of the fan wheels

• Closed valves at the heat exchanger units

• Check the screw joints of all connections

• Unlock the electric duct heater only after the fan

• Remove a possible protective film

• Optical inspection of the unit gaskets for damage

• Re-adjust the hinges of the maintenance doors

• Close all doors

• Operational check of the fans

• Pressure control of the reverse flow heat exchanger must be set according to the operating

point of the unit.

► ATTENTION: If above the above instructions are not followed, dangerous
conditions may occur on startup of the unit, which affect the functionality and
safety of the unit.

► ATTENTION: Before stopping the unit de-energize it and remove water of
optional heaters to avoid freezing.

Further information for the startup of the units can be found in the corresponding component
specification beginning with 7.4. The instruction manual of the control system must absolutely be
observed!

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

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7. Maintenance and Cleaning

7.1 General Maintenance Instructions

The maintenance interval indicated in this manual refers to the transport of normally

polluted air. If the unit must transport strongly polluted air, the maintenance intervals

must be reduced accordingly.

►

Before any maintenance work is started the unit must be stopped properly and all
poles disconnected from the mains.
Proceed in the following order:

1. Stop the unit with using the remote operator. Activated full automatic weekly
programs have to be deactivated first.

2. Wait 2 minutes until the optional louver damper is closed and the fans have
stopped.

3. Now turn the operating switch to ZERO (Off) and make sure that it will not be
switched on unintentionally. This step disconnects the compact unit from the
mains with all poles. Be aware that the control box will still be hot. For
maintenance at the control box the connection must be interrupted.

4. Wait for the residual voltage to decrease at the EC-control as
indicated in the instruction manual of those components.

5. Let the heater cool down.

6. Now you can open the maintenance doors.

Pay attention that at optionally used channel-type heat exchangers the water circulation must be
protected against re-starting.

7.2 General Cleaning Instructions

Recommended cleaning agents for surface disinfection are:

• Dismozon pur (Bode Chemie)

• Melsitt (B.Braun)

• Antifect (Schülke & Mayr)

• Clorina (Lysoform)

All disinfectants are recognized and licensed by Robert-Koch-Institute (date 31.05.2007, 15. edition)

To ensure the hygienically perfect condition of the unit the following instructions must be observed:

• Only qualified and trained staff should clean the unit (in Germany according to VDI 6022).

Operation and Maintenance Manual for Rosenberg

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Comfort

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• The hygiene inspection at the unit has to be made according to the following intervals:

- after startup

- every 3 years (units without moisturization)

• The periodical hygiene inspection is necessary to reveal hygiene deficiencies at an early stage
and to rectify them with appropriate action.

• The results of the inspection of the hygienic condition, the cleaning and disinfection have to be
documented in the appropriate way (e.g. operations diary).

• The relevant regulation for the hygienic requirements of the RLT-units is VDI 6022. It is the
guideline for the current instructions. All work has to be carried out according to the latest
version of the VDI guideline.

Please find instructions for the cleaning and hygiene inspection of each functional part of the device
below.

7.3 Maintenance and Cleaning of the housing and control

Please keep to the following instructions for the regular maintenance work (quarterly
intervals):

• Check the seals of the control doors and replace them if necessary

• Check the double guide at the fan (discharge side) for correct function.

• Check the panels for damages and corrosion

• Flexible parts, such as hinges, should regularly be treated with an appropriate lubricant spray

• Remove severe loose dirt with a vacuum cleaner

• Remove other dirt with a moist cloth

• The water or cleaning agent should have a neutral ph-value (6-8)

Maintenance of the control and terminal box

(only carried out by an electrician)

every

3 months

If

necessa

ry

Hygiene

inspection

Check the electrical equipment, cables and connections for dirt
and apparent damages and replace them if necessary.

X

Dry cleaning of the control, do not use water X

Operation and Maintenance Manual for Rosenberg

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Comfort

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7.4 Fans

7.4.1 Setup

• Before connecting the unit to the mains the initial operation should be made
according to the VDE regulation

• Make sure that the operating switch is set to ZERO (OFF) and protected
from restarting before you open the fan enclosure.

• The fans should be operated exclusively while installed only after correct
installation of the protection unit (suction protection) and with closed doors.

• Before the startup of the fans check the heat recovery, the heater and the
corresponding frost protection if the outside temperature is less than 5°C
and operate them if necessary in order to prevent the unit from frost damage

• Check the unit for forgotten tools, foreign materials and dirt and clean it if necessary.

• Check all clamping elements of the fan to ensure that they are properly fixed.

:

- Motor and fan bearing

- Fan wheel

- Vibration absorber

• Before starting the power supply it is necessary to check if all assembly components are ready
for use and to adjust them.

• Check the correct function of the fan when you start it up (air supply, balance, vibration or
imbalance).

• Check the gap and the gap cover according to the following drawing:

Picture: Fan GKHM

Operation and Maintenance Manual for Rosenberg

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• ► Check of the gap and gap coverage between wheel and inlet cone

• The gap S should be constant on the entire perimeter of the wheel.

• The gap cover R should be about 1 to 2 % of the wheel diameter.

7.4.2 Operation

Monitor the fans for correct function during the operation. Vibrations, pressure
fluctuations or other deviations from the provided operating parameters should6 be
checked according to the following chapter.

7.4.3 Maintenance and Cleaning

Monitor the unit operation during the first four to twelve weeks regarding the
following points:

- Balance, unusual sounds, vibrations

- Fastening of the fan, the motor and the vibration absorbers

- For belt driven fans : Belt drive and belt tension

The fan as a fast rotating device needs regular monitoring as well as a three-month maintenance
interval. In case of deviations of the standard operation conditions (air temperature, increased dust or
permanent high humidity) or in case of continuous 24-hours-operation a shorter interval must be
determined.

Maintenance

Fan unit

Every

3 Months

If

necessary

Hygiene

inspection

Check the fan for dirt, mechanical defects, corrosion and
proper fastening

X X

Check the fan gap X
Cleaning of the fan incl. impeller X
Check the impeller for imbalance X
Check the quiet running and bearing for sounds X

Picture: gap of the fan

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

BA 112 BB 11/12/A/SupraBox 1

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Lubricate or replace the bearing X
Check the fan fastening for tightness and mechanical

damages

X

Check the function of the vibration absorber X

Check for the existence of the fasteners of the protection
units

X

Check the function of the drainage X X

Check the motor for dirt, mechanical defects, corrosion
and proper fastening

X X

Cleaning of the motor housing X

Check the power supply X

Check the electrical connections for corrosion and proper
fastening

X

The fresh air fan can be detached for a more efficient cleaning. Unlock the four
allen-head screws at the chassis rails. Make sure that the wiring has been
disconnected first.
For easy cleaning the exhaust fan can also be unlocked and detached at the four
points of the vibration absorber!

The water or the cleaning agent respectively should have a neutral ph-value (6 – 8).

7.5 Reverse flow heat exchanger

7.5.1 Startup

Check the correct operation and direction of movement of the bypass flap at the
reverse flow heat exchanger. Make sure that the bypass flap is closed on startup of
the fans and consequently the flap above the plate heat exchanger is opened.

Pay attention that the drain pan at the bottom of the reverse flow heat exchanger in the exhaust air is
fixed to the condensate pipe by a trap (at the suction side. The assembly of the trap is described in
detail under point 5.5.

7.5.2 Operation

The automatic bypass flap will be controlled by the central device control using a
final control element.

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

BA 112 BB 11/12/A/SupraBox 1

24

7.5.3 Maintenance and Cleaning

The reverse flow heat exchanger as an installed component needs little
maintenance. For hygienic requirements inspection and maintenance is necessary.
In addition the integrated damper servomotor and fastener need regular checks and
maintenance.

Maintenance

every

3 months

If necessary Hygiene inspection

Check of the hygienic condition X

Check the reverse flow heat exchanger for dirt

X

Cleaning of the plate set with water (water or
steam, the sheet of water should always follow
the disc set, from top to bottom)
Clean the module chamber carefully
Completely remove the dirty water
Close the maintenance pan

X

Check the condensate and maintenance pan
for dirt

X

Cleaning of the condensate and maintenance
pan

X

Check the function of the trap and water level.
Fill in water if necessary.

X

Check the bypass flap on free movement and
repair it if necessary

X

The water or the cleaning agent respectively should have a neutral ph-value (6 – 8).

► ATTENTION: The blades of the reverse flow heat exchanger are very
sensitive to contact. Clean and remove them with extreme caution!

7.6 Panel filters

7.6.1 Startup

• Before the installation of the filter check all seals for correct fitting. Clean the
housing bottom.

• Pay attention to the directional arrow for the air stream printed on the panel
filters.

• The units are equipped with one differential pressure sensor for each filter. A message will be
displayed on the control panel to replace the filter. In such case the filters must be changed
immediately. Find more information in the Manual of the control.

Operation and Maintenance Manual for Rosenberg

Compact Ventilation Appliance series SupraBox

Comfort

BA 112 BB 11/12/A/SupraBox 1

25

7.6.2 Operation

The panel filters must be fastened with use of a tensioning rail at the
assembly frame. For the change of the filter draw the rail to the body
and now remove the filter. For the re-instalment pay attention to the
correct fitting at the frame. When you change the filter check the seal
and replace it if necessary.

7.6.3 Maintenance and Cleaning

The recommended final resistance for this filter version is 200 Pa. Always replace
panel filters completely. The filters can be fully incinerated and must be disposed of
accordingly. Clean the housing bottom before installing the new filter.
Change the filter after 12 months of operation or downtime at the latest. Note the
filter change with name and date at the unit and in the maintenance book.

Maintenance

recurrent

3 months

If necessary Hygiene Inspection

Check for dirt by differential pressure control. X X X

Check the filter element for damages X

Replacement of the filter insert X

Check the fitting for impermeable fit X X X
Check the measure control for the differential

pressure

X X

Picture: Clamping rail filter