BLAUBERG KOMFORT L350 Installation manual

OPERATION MANUAL
KOMFORT L
HEAT RECOVERY
AIR HANDLING UNIT
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KOMFORT L
3Introduction
3 General
3 Safety regulations
3 Transportation and storage regulations
3 Manufacturer's warranty
4 Design
4 Operation logic
4 Delivery set
5 Technical data
6 Mounting
7 Condensate drainage
8 Connection to power mains
9 Unit control
9 Technical maintenance
10 Troubleshooting
11 Acceptance certicate
11 Connection certicate
11 Warranty card
CONTENTS
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KOMFORT L
BLAUBERG Ventilatoren GmbH Company is happy to oer your attention a
heat recovery air handling unit KOMFORT L.
INTRODUCTION
The present operation manual contains a technical description, technical
data sheets, operation and mounting guidelines, safety precautions and
warnings for safe and correct operation of the unit.
Read carefully and understand the operation manual, especially the safety
requirements, before the unit mounting and start up.
Keep the operation manual available as long as you use the unit.
GENERAL
The heat recovery air handling unit KOMFORT L is designed for ecient and
energy saving ventilation of domestic and public premises.
The unit is not a ready to use product but a component part of central air
conditioning and ventilation network.
The unit is available for Ø 125 or 315 mm air ducts depending on the model.
The unit is designed for indoor application with the ambient temperature
ranging from +1 °C up to +50 °C and relative humidity up to 80 %.
Hazardous parts access and water ingress protection rating:
unit motors - IP 44;
assembled unit connected to air ducts - IP 22.
The unit design is regularly improved, so some models can slightly dier
from those ones described in this operation manual.
SAFETY REGULATIONS
All operations related to the unit electrical connections, servicing and repair
works are allowed only after the unit is disconnected from power supply.
The unit is rated as a Class I electrical appliance.
All mounting and servicing operations are allowed by duly qualied
personnel.
Please, follow the safety regulations and working instructions (DIN EN 50
110, IEC 364).
Make sure the impeller and the casing are not damaged before connecting
the unit to power supply. The casing internals must be free of any foreign
objects which can damage the impeller blades or the motor.
The unit maintenance and repair is allowed only after power cut-o and full
stop of the rotating parts.
Misuse of the unit or any unauthorized modications are not allowed.
The unit is designed for connection to AC single-phase power mains in
compliance with the «Technical data» section.
The unit is rated for continuous operation.
Take steps to prevent ingress of smoke, carbon monoxide and other
combustion products into the room through open chimney ues or other
re-protection devices. Sucient air supply must be provided for proper
combustion and exhaust of gases through the chimney of fuel burning
equipment to prevent back drafting. The maximum permitted pressure
dierence per living units is 4 Pa.
The transported air must not contain any dust or other solid impurities,
sticky substances or brous materials.
The unit is not rated for operation in a ammable or explosive medium.
Full the operation manual requirements to ensure a trouble-free and long
service life of the unit.
TRANSPORTATION AND STORAGE REGULATIONS
The unit complies with the requirements according to the EU norms
and directives, to the relevant EU-Low Voltage Equipment Directives, EU-
Directives on Electromagnetic Compatibility.
We hereby declare that the unit complies with the essential protection
requirements of Electromagnetic Council Directive 2004/108/EC, 89/336/EEC
and Low Voltage Directive 2006/95/EC, 73/23/EEC and CE-marking Directive
93/68/EEC on the approximation of the laws of the Member States relating
to electromagnetic compatibility, which relate to electrical appliances used
in set voltage classes.
The Manufacturer hereby warrants normal operation of the unit over the
period of two years from the retail purchase date provided observance of the
installation and operation regulations.
In case of a failure due to a manufacturing fault during the warranty period
the consumer has the right to exchange it.
The replacement is oered by the Seller.
In case of no conrmation of the purchase date, the warranty period shall
be calculated from the manufacturing date.
The MANUFACTURER is not responsible for any damage resulting from any
misuse of or gross mechanical interference with the unit.
The MANUFACTURER is not responsible for the damages resulted due to
the use of third party equipment or to third party equipment.
MANUFACTURER’S WARRANTY
The unit complies with the requirements according to the EU norms
and directives, to the relevant EU-Low Voltage Equipment Directives, EU-
Directives on Electromagnetic Compatibility.
We hereby declare that the unit complies with the essential protection
requirements of Electromagnetic Council Directive 2004/108/EC, 89/336/EEC
and Low Voltage Directive 2006/95/EC, 73/23/EEC and CE-marking Directive
93/68/EEC on the approximation of the laws of the Member States relating
to electromagnetic compatibility, which relate to electrical appliances used
in set voltage classes.
The Manufacturer hereby warrants normal operation of the unit over the
period of two years from the retail purchase date provided observance of the
installation and operation regulations.
In case of a failure due to a manufacturing fault during the warranty period
the consumer has the right to exchange it.
The replacement is oered by the Seller.
In case of no conrmation of the purchase date, the warranty period shall
be calculated from the manufacturing date.
The MANUFACTURER is not responsible for any damage resulting from any
misuse of or gross mechanical interference with the unit.
The MANUFACTURER is not responsible for the damages resulted due to
the use of third party equipment or to third party equipment.
WARNING
Do not dispose in domestic waste.
The unit contains in part materials that can be
recycled and in part substances that should not
end up as domestic waste.
Dispose of the unit once it has reached the end
of its working life according to the regulations
valid in your country.
WARNING
The unit is not allowed for use by children and
persons with reduced physical, mental or sen-
sory capacities, without proper practical expe-
rience or expertise, unless they are controlled
or instructed on the product operation by the
person(s) responsible for their safety.
Supervise the children and do not let them play
with the unit.
!
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Fig. 1. Unit design and operating logic
DESIGN
INTAKE AIR
EXHAUST AIR
EXTRACT AIR
SUPPLY AIR
Supply fan
Thermostat Drain pan
Exhaust fan
Heat exchanger
Extract lter
Intake lter
Control unit
Terminal box
Speed switch
KOMFORT L1200 / L2200
EXTRACT AIR
SUPPLY AIR
INTAKE AIR
EXHAUST AIR
Supply fan
Drain pan
Thermostat
Control unit
Exhaust fan
Extract lter Intake lterHeat exchanger
Terminal box
Speed switch
KOMFORT L350 / L500 / L530 / L600
0
1
2
3
0
1
2
3
The casing is made of aluminium prole and double-skinned aluzinc
panels, internally lled with 20 mm mineral wool layer for heat- and sound-
insulation.
The casing has mounting brackets with anti-vibration rubber mounts for
easy installation.
The spigots are located at the sides of the unit and are equipped with
rubber seals for airtight connection to the air ducts.
The hinged side panels ensure easy access to the internals for service works
including cleaning, lter replacement, etc.
The unit is equipped with external rotor AC-motors and centrifugal double-
inlet impellers with forward curved blades. The motors are equipped with
integrated overheating protection with automatic restart and ball bearings
for a long service life.
Connect the unit to power mains through the terminal block located in the
terminal box on the side panel of the casing.
The unit incorporates a plate cross-ow aluminium heat exchanger. The
drain pan under the heat exchanger block is used for condensate collection
and drainage.
The unit is equipped with a built-in heat exchanger protection system
to prevent its freezing in the cold season. If the heat exchanger freezing
becomes imminent a thermostat relay interrupts the supply fan circuit. After
the supply fan shuts down automatically the heat exchanger is warmed up
by the stream of warm air from the exhaust fan. After that the supply fan
is turned on and the unit reverts to the normal operation mode. To set the
thermostat operation temperature turn the control knob until reaching the
desired value. The recommended operating value for the thermostat relay in
the absence of a duct heater in the air supply part of the ventilation system
is +5 °C.
Two built-in G4 cassette lters provide high-end air purication. Optionally
F7 intake lter may be mounted.
The unit incorporates an external CDP-3/5 four-position speed switch that
enables setting low, medium, maximum speed and turning the unit o.
The switch mounted on the side panel allows to switch o the supply fan
if necessary.
OPERATING LOGIC
Cold fresh air from outside ows through the heat exchanger and is
moved to the room with the supply fan.
Warm extract air is extracted from the room with the exhaust fan and is
moved through the heat exchanger, where it transfers its heat energy to the
intake air. After that it is exhausted outside.
Heat energy of warm and humid extract air is transferred to the cold fresh
air. The air ows are fully separated while owing through the heat exchanger.
Heat recovery minimizes heat losses caused by traditional window
ventilation and saves energy.
In summer the heat exchanger performs reverse and transfers cold
from the cooled extract air to the warm fresh air. This contributes to better
performance of the air conditioner in ventilated premises.
In summer, when the indoor and outdoor temperature dierence is
low heat recovery is not reasonable. In this case the heat exchanger can be
temporary replaced with a summer block for warm seasons. Available upon
separate order.
DELIVERY SET
Air handling unit - 1 item
Operation manual - 1 item
Speed switch - 1 item
Packing box - 1 item
ATTENTION
Make sure the unit has no visible transport damages
while accepting the goods. Check the ordered and the
delivered goods for compliance.
!
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KOMFORT L
TECHNICAL DATA
Table 1. Technical data
Table 2. Overall dimensions
Table 3. Accessories
Fig. 2. Overall dimensions
Parameters KOMFORT
L350
KOMFORT
L500
KOMFORT
L530
KOMFORT
L600
KOMFORT
L1200
KOMFORT
L2200
Voltage [V] 1~ 230 / 50-60 Hz 1~ 230 /
50 Hz
1~ 230 /
50-60 Hz
Power [kW] 0,26 0,3 0,3 0,39 0,82 1,3
Current [A] 1,2 1,32 1,32 1,72 3,6 5,68
Max. air capacity [m3/h] 350 500 530 600 1200 2200
R.p.m. 1150 1100 1100 1350 1850 1150
Sound pressure level at 3 m distance [dB(A)] 24-45 28-47 28-47 32-48 60 65
Transported air temperature [°C] from -25 up to
+55 from -25 up to +50 from -25 up to +55 from -25 up to +40
Casing material aluzinc
Insulation 25 mm mineral wool 50 mm mineral wool
Extract lter cassette G4
Intake lter cassette F7 cassette G4 (F7)*
Connected air duct diameter [mm] 125 150 160 200 250 315
Weight [kg] 45 49 49 54 85 96
Heat recovery eciency [%] up to 78 up to 88 up to 85 up to 88 up to 87
Heat exchanger type cross-ow
Heat exchanger material aluminium
Model Dimensions [mm]
D B B1 B2 B3 H H1 H2 L L1
KOMFORT L350 124 416 300 54 207 603 230 148 722 768
KOMFORT L500 149 416 300 54 207 603 230 148 722 768
KOMFORT L530 159 416 300 54 207 603 230 148 722 768
KOMFORT L600 199 416 300 54 207 603 230 148 722 768
KOMFORT L1200 248 548 496 60 213 794 290 200 802 850
KOMFORT L2200 313 846 796 235 588 968 360 246 1000 1050
Model Replaceable G4 cassette lter Replaceable F7 cassette lter Summer block
KOMFORT L350
FP-L350-600 G4 FP-L350-600 F7
SB-L350
KOMFORT L500 SB-L500-600
KOMFORT L530 SB-L500-600
KOMFORT L600 SB-L500-600
KOMFORT L1200 FP-L1200 G4 FP-L1200 F7 SB-L1200
KOMFORT L2200 FP-L2200 G4 FP-L2200 F7 SB-L2200
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MOUNTING
The unit is designed for indoor mounting. The unit has versatile mounting
possibilities and may be installed on the oor, suspended to the ceiling
or xed to the wall. The unit is suitable for mounting in technical, service
premises as well as living and lounge areas.
Install straight air ducts on both sides of the unit to minimize aerodynamic
resistance caused by air ow turbulence, the minimum air duct section
length is equal to 1 time air duct diameter on the inlet side and 3 time air
duct diameters on the outlet side.
While planning the ductwork layout avoid too long air duct sections,
numerous bends and reducers because it may reduce air ow.
The mounted air ducts must not be deformed. Provide airtight connection of
the air ducts to the unit spigots and ttings.
While mounting consider the need to ensure sucient service access to the
unit. The unit mounting position must provide condensate drainage and
access to the terminal box for electric connection and access to the service
panel for maintenance and lter replacement.
In case of insucient length or no air ducts cover the unit spigots with a
protecting grille or any other protecting device with maximum mesh width
12.5 mm to prevent ingress of foreign objects inside the unit and to prevent
contact with unit fans.
Unit mounting on a horizontal plane
Fix the unit on a rigid and stable horizontal plane.
Fig. 3. Unit mounting on a horizontal plane
Suspended mounting
Unit mounting on a horizontal plane
Washer
Nut
Vibration absorbing
rubber
Nut and lock
nut
min. 80 mm
Suspended mounting
Prior to starting mounting make sure the mounting surface has sucient
load capacity matching the unit weight. Otherwise reinforce the installation
place with beams.
The unit must be rigidly xed! Loose xation of the unit may result in
noise and vibration generation.
The unit is suspended to the ceiling with four M8 anchor bolts, the
matching dowels, nuts and washers.
Fig. 4. Suspended mounting of the unit
Suspended mounting
Unit mounting on a horizontal plane
Washer
Nut
Vibration absorbing
rubber
Nut and lock
nut
min. 80 mm
CDP-3/5 speed switch mounting (Fig. 5):
1) Remove the speed switch knob.
2) Use a screwdriver to carefully undo the clips on the front panel of the
speed switch and remove the panel.
3) Route the cable in the wall to the speed switch installation site.
4) Connect the wires to the speed switch and x the back panel to the wall
through the mounting holes.
5) Install the front panel and the control knob of the speed switch.
65
Fig. 5. Speed switch mounting
!
Safety precautions:
The unit must be mounted to a rigid and stable structure. The unit must be suspended using anchor bolts. Make sure that the
base structure is capable of sustaining the unit weight.
The unit mounting is allowed only after power cut-off and full stop of the rotating parts.
Restrictions:
Do not operate the unit beyond the determined temperatures, in aggressive and in explosive medias. Do not connect the
clothes dryer or other similar equipment to the ventilation system.
Do not use the unit for air/dust mixture handling.
WARNING
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Fig. 6. Condensate drainage
CONDENSATE DRAINAGE
The drain pan is equipped with a drain pipe for condensate removal
outside the unit.
Connect the drain pipe, the U-trap (not included into the delivery set) and
a sewage system with drain hoses. While laying the hoses provide the slope
downward min 3 %.
Fill the system with water prior to connecting it to power supply. The
U-trap must always be lled with water to maintain free ow of condensate.
The condensate drain system is suitable for indoor frost-free
application with the ambient temperature above 0 °C! If the expected
ambient temperature is below 0 °C provide heating for the drain system.
Drain pipe
U-trap
Sewage system
A
3%
B
WARNING
In case of several units mounting connect each unit to an individual U-trap.
Direct condensate drainage with no connection to the drain system is not allowed.
!
Table 4. Recommended dimensions of the U-trap
Model Minimum dimensions [mm]
A B
KOMFORT L350
120 60
KOMFORT L500
KOMFORT L530
KOMFORT L600
KOMFORT L1200 200 110
KOMFORT L2200
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KOMFORT L
CONNECTION TO POWER MAINS
!
WARNING
Read the service instruction prior to any electric installations. Connection of the unit to power mains is allowed by a
qualified electrician only.
The rated electrical parameters are stated on the rating plate. Any tampering with the internal connections is prohibited
and will void the warranty.
Connect the unit only to power mains with valid electric standards.
Follow the respective electric standards, safety rules (DIN VDE 0100), TAB der EVUs. The house cabling system must be
equipped with a magnetic trip automatic switch at the external input. The contact gap on all poles must be at least 3 mm (VDE
0700 T1 7.12.2 / EN 60335-1).
The automatic switch trip current must be not below the rated current consumption (see Table 1). Enable quick access to an
automatic switch installation place.
The unit is rated for connection to single-phase AC power mains according
to the Table 1 «Technical data». The electric connections must be performed
with insulated, durable and heat-resistant conductors (cables, wires) with a
matching cross section.
The above cross section is for reference only. The applicable cable must be
selected in consideration of the maximum wire temperature depending on
the wire and insulation type, the maximum current, the lead wire length and
its installation method.
Use copper wires only.
The unit must be grounded in compliance with the valid electrical
standards of the user country!
The unit connection must be consistent with the Wiring diagram and the
terminal designations given on Fig. 7. Connect all the control and supply
cables in compliance with the terminal marking and polarity!
The rating plate with a terminal designation is placed inside of the
terminal box.
Cut power supply to the unit o by turning the automatic electric switch
QF to OFF position prior to any operations. Take steps to prevent activation
of the automatic switch before nishing all the operations.
QF
Fig. 7. Wiring diagram
L
N
X1
Terminal box
Control unit
CDP-3/5 speed switch
KOMFORT L350 / L500 / L530 /L600 KOMFORT L1200 / L2200
QF
PE
L
N
~230 V
50-60 Hz
QF
PE
L
N
~230 V / 50 Hz
KOMFORT L1200
KOMFORT L2200
~230 V / 50-60 Hz
3
3
C
B
1
1
B
2
2
C
X4
L
N
X4
Control unit
1
2
3
C
B
3 1
B
2
C
Table 5. Recommended currents of the of automatic switch
Model Rated current of the automatic switch [A]
KOMFORT L350
1,6KOMFORT L500
KOMFORT L530
KOMFORT L600 2
KOMFORT L1200 6
KOMFORT L2200 10
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KOMFORT L
UNIT CONTROL
The step control of the unit air ow is performed with the speed switch.
Make sure to install the switch in a convenient location.
The units are equipped with the CDP 3/5 speed controller. It is factory-
connected to the unit terminal block in compliance with the Wiring diagram
on page 7.
To engage the desired speed turn the speed control knob clockwise into
one of the three positions available (Fig. 8):
− Speed 1; − Speed 2; − Speed 3.
To switch o the unit turn the speed control knob counterclockwise until
reaching the «0» (left) position.
Fig. 8. Speed switch control
3
O
12
3OFF
Maintenance operations of the unit are required 3-4 times per year.
The unit technical maintenance includes regular cleaning and other works:
1. Filter maintenance (3-4 times per year).
Dirty lters increase air resistance and decrease supply air volume. Clean the
lters with a vacuum cleaner or ush those with water. After two consecutive
cleanings the lter must be replaced. Install dry lters only! Contact a local
distributor to purchase the lters stated above in the «Technical data» section.
Dirty lters are not considered as a warranty case!
Replace humid and mouldy lters immediately.
To remove the filters proceed as follows:
Make sure the unit is disconnected from power mains.
Unlatch and open the service panel.
Remove the dirty lters from the unit and install new or cleaned lters.
2. Heat exchanger maintenance (once a year).
The heat exchanger must be regularly cleaned to maintain high heat
recovery efficiency even in case of the regular filter cleaning. To clean the
heat exchanger pull it out, flush the heat exchanger with warm detergent
solution. After cleaning install the dry heat exchanger back to the unit.
Sequence of heat exchanger removal:
Make sure the unit is disconnected from power mains.
Unlatch and open the service panel.
Remove the lters from the unit. If necessary install new or cleaned
lters.
Remove the dirty heat exchanger from the unit. After technical
maintenance install the dry heat exchanger back to the unit.
3. Fan maintenance (once a year).
The regular lter cleaning may not completely prevent the dust ingress into
the unit, which results in the unit performance decrease.
Clean the fan with a soft cloth or a brush.
Cleaning with water, abrasive detergents, sharp object or chemicals is not
allowed.
4. Condensate drain system maintenance (once per year).
The condensate drainage (drain line) may get clogged by dirt and dust
particles contained in the exhaust air. Check the drain line operation by lling
the drain pan under the unit with water, clean the U-trap and the drain line,
if necessary.
5. Technical maintenance of the supply grille (twice a year).
Check the supply grille and remove foreign objects to maintain free air
intake.
6. Air ducts maintenance (once in 5 years).
Even regular fullling of all the prescribed above maintenance operations
may not completely prevent dirt accumulation in the air ducts which reduces
the unit capacity. Duct maintenance means regular cleaning or replacement.
7. Exhaust grilles and intake diusers maintenance (if required).
Remove the exhaust grilles and the intake diusers and ush those with
warm detergent solution.
Check the ductworks connections periodically!
TECHNICAL MAINTENANCE
Regular technical supervision and maintenance of the unit are required to
ensure the product long service life and non-stop operation.
Disconnect the unit from power supply prior to any maintenance
operations.
WARNING! Consider the unit sharp edges! Full maintenance
operations in work gloves!
QF
!
WARNING
Cut power supply to the unit off by turning the automatic electric switch QF to OFF position prior to
any maintenance operations.
Take steps to prevent activation of the automatic switch before finishing all the operations.
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KOMFORT L
Fault Possible reason Troubleshooting
The fans do not
operate
No power supply or wrong connection to power mains. Connect the unit to power supply. Troubleshoot the
connection error.
The motor is jammed, the impeller blades are soiled. Remove the motor jam, clean the impeller blades.
Automatic switch
tripping Short circuit in power grid. Turn the unit o and contact the unit Seller for troubleshooting.
Low air ow
Too low set speed. Set higher speed.
The lters and the fans are soiled, the heat exchanger is soiled. Clean or replace the lters, clean the fans and the heat
exchanger.
The air dampers, the supply diusers or the exhaust grilles are
closed or soiled.
Open and clean the air dampers, the supply diusers, the
exhaust grilles to ensure free air ow.
Noise, vibration
The impeller is soiled. Clean the impeller.
The screw connection is loose. Tighten the screws.
No exible anti-vibration connectors. Install the exible anti-vibration connectors.
Condensate leakage The drain system is clogged, damaged or wrong installed.
Clean the condensate drain system. Check the drain hose
slope. Make sure the U-trap is lled with water and the drain
system is frost-protected.
TROUBLESHOOTING
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KOMFORT L
The air handling unit with heat recovery
is recognized as serviceable.
The unit complies with the requirements according to the EU norms and directives, to the relevant EU-Low Voltage Equipment Directives, EU-Directives
on Electromagnetic Compatibility. We hereby declare that the unit complies with the essential protection requirements of Electromagnetic Council Directive
2004/108/EC, 89/336/EEC and Low Voltage Directive 2006/95/EC, 73/23/EEC and CE-marking Directive 93/68/EEC on the approximation of the laws of the
Member States relating to electromagnetic compatibility, which relate to electrical appliances used in set voltage classes.
This certicate is issued following test carried out on samples of the product referred to above.
Approval mark ____________________ Manufacturing date ____________________
Company:
Expert’s Full Name
Date Signature
Heat recovery air handling unit
KOMFORT L350 KOMFORT L600
KOMFORT L500 KOMFORT L1200
KOMFORT L530 KOMFORT L2200
is connected to power mains in compliance with the operation manual requirements by the professional:
SELLER
PURCHASE DATE
REPRESENTATIVE IN EU
BLAUBERG Ventilatoren GmbH
Aidenbachstr. 52a,
D-81379 München,
Deutschland
www.blaubergventilatoren.de
ACCEPTANCE CERTIFICATE
CONNECTION CERTIFICATE
WARRANTY CARD
KOMFORT L350 KOMFORT L600
KOMFORT L500 KOMFORT L1200
KOMFORT L530 KOMFORT L2200
KOMFORT L350 KOMFORT L600
KOMFORT L500 KOMFORT L1200
KOMFORT L530 KOMFORT L2200
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KOMFORT L v.2(2) / EN
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