CorroVenta K3 HP User manual

CONDENSING DRYER
K3 HP B
USER MANUAL

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Contents
Area of use........................................................................................................................................... 2
Delivery check ..................................................................................................................................... 2
Manufacture directive......................................................................................................................... 3
Safety Information............................................................................................................................... 4
Relative humidity and its impact on materials.................................................................................... 5
This is how the dryer works................................................................................................................. 7
Overview, controls and connections................................................................................................... 8
Alarm/Indicator lamp .......................................................................................................................... 9
Electrical Connection......................................................................................................................... 10
Starting and operating....................................................................................................................... 10
Transportation................................................................................................................................... 11
Storage .............................................................................................................................................. 12
Water bucket..................................................................................................................................... 12
Maintenance and service .................................................................................................................. 13
Inspection and cleaning of process air filters, water filters and cleaning of bucket......................... 13
Accessories and consumables ........................................................................................................... 14
Fault tracing........................................................................................................................................... 15
Technical data ....................................................................................................................................... 15

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User instructions K3 HP B
Area of use
Condensing dryer K3 HP B is primarily intended for professional use. It has been specially developed
for use in occupied areas in event of emergency damage or where it is difficult to eliminate the
humid air from an adsorption dehumidifier or run-off water from a more stationary condensing
dryer.
K3 HP B is equipped with a bucket that condensation water is routed to, which must be emptied
manually. It is also possible to connect a hose to the bucket and then route the water to a floor drain
for example.
Properties:
•High capacity level
•Robust
•
Fan has high and low speeds, quiet
operation
•
Demand controlled defrosting
•Easy to transport
•Stackable
•Service-friendly
•kWh counter
•Hygrostat connection
•Very compact
•Low weight
•Ergonomic
•Energy efficient
•Portable and rollable
Delivery check
K3 HP B is delivered fully assembled and ready to use.
The packaging contains:
Designation
K3 HP B Dryer Corroventa

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Manufacture directive
Condensing dryer K3 HP B is tested according to applicable directives and standards by Intertek.
The dryer is CE labelled.
Disclaimer
•Incorrect installation and/or incorrect use can cause damage to property as well as injury.
•The manufacturer assumes no liability for property damage or injury incurred as a result of
failing to follow these instructions, the machine being used for purposes other than those
intended or failure to observe these warnings. Such damage, injury or liability is not covered
by the product warranty.
•The product warranty does not cover consumable parts or normal wear.
•The purchaser is responsible for checking the product upon delivery and before use to
ensure it is in good condition. The product warranty does not cover damages resulting from
the use of defective products.
•No changes or modifications to the machine may be performed without written consent
from Corroventa Avfuktning AB.
•The product, technical data and/or installation and operating instructions are subject to
change without notice.
•These user instructions contain information protected by applicable intellectual property
laws. No part of these user instructions may be reproduced, stored in a retrieval system or
transmitted to third parties in any form or by any means without the prior written consent of
Corroventa Avfuktning AB.
Any comments regarding the content of this document must be sent to:
Corroventa Avfuktning AB Tel: [phone]
Mekanikervägen 3 Fax [phone]
SE-564 35 Bankeryd, Sweden E-Mail: [e-mail]

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Safety Information
The device can be used by children over 8 years old and people (including children) with reduced
physical, sensory or mental capabilities, or lack of experience or knowledge, if they have received
guidance or information on how to use the device safely and understand the risks that may occur.
Children must not play with the device. Cleaning and maintenance must not be carried out by
children without the supervision of an adult.
Electrical installations carried out in connection with the dryer installation must be done by a
qualified electrician in accordance with local and national regulations.
1. The dryer is only intended for indoor use.
2. The dryer must not be covered during operation, as this may cause overheating and fire.
3. The dryer's protective covers and shields must always be in place during operation.
4. The dryer must not be used as a worktable, trestle or stool.
5. The dryer is not intended to be stood or climbed on.
6. Never operate the dryer without installing the filter as this may damage the dryer. Ensure
that the filter is clean. If it is blocked, the machine may overheat.
7. Avoid sucking oil, grease or similar into the dryer.
8. The dryer may not be used in areas where it can produce explosive gases.
9. Do not insert objects into the intake or exhaust vents as this could damage the dryer and
people.
10. The machine must be used and transported upright.
11. The dryer must always be upright when it is in operation. Place the dryer on a firm and flat
surface so that it cannot overturn.
12. Do not damage the electrical cable. Extension cables must be intact and of the right quality
and dimension. They must nor run through water or over sharp edges. If the electrical cable
is damaged, it should be replaced by the manufacturer, its’ service personnel or equivalent
qualified personnel.
13. Never carry or drag the dryer by the electrical cable or the drain hose.
14. Using electrical equipment in very damp or wet conditions can be dangerous. Do not operate
the dryer if it is standing in water.
15. Always use an earth-fault breaker to minimize the risk of electric shock.
16. Water must not encounter the dryer's electrical components. If it does, ensure that they are
dried thoroughly before the dryer is used again.
17. Never open the dryer for cleaning or service without first ensuring that the dryer is
disconnected from power.
18. Repairs and maintenance of the dryer's cooling system must be performed by a qualified
refrigeration engineer.
19. Repairs and maintenance of the dryer's electrical system must be performed by a qualified
electrician.
20. The dryer must not be used with accessories other than those described in this manual or
approved by Corroventa Avfuktning AB.
21. The dehumidifier must be placed at a distance of at least half (0.5) meters from the walls and
ceilings to ensure that the air can circulate.
22. The equipment must be scrapped in accordance with local regulations.
Contact the supplier of this dehumidifier for further advice on the safety and use of the product.

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Relative humidity and its impact on materials
All air contains a greater or lesser degree of moisture. We cannot see it with the naked eye until it
appears in the form of small water drops against a cold metal or glass surface for example. However,
before it is visible, moisture is already causing problems by affecting materials and manufacturing
processes, causing corrosion and growth of micro-organisms.
Air moisture is measured and usually given in relative humidity (% RH). It is a measurement of how
much water vapour the air contains over how much it can hold in total at a given temperature and
pressure. The higher the temperature, the more water the air can hold, but it is the relative humidity
that is calculated and must be controlled to prevent corrosion or mould growth.
At 100% RH the air is saturated, and the moisture falls in the form of small water droplets. Steel
corrodes at 60% RH and at 70% RH there is a risk of mould. A rule of thumb is that 50% RH is a good
climate for most materials.
•The dryer contains Propane (R290), a natural refrigerant with low environmental impact.
•The refrigerant gas is flammable.
•Ensure that the cooling circuit's pipelines are not damaged. In case of damage to the
cooling circuit, carry the machine out or ventilate the space and avoid naked flames or
other spark-generating sources.
•Note that the refrigerant gas is odourless.
•The machine must always be stored upright, frost-free and in a ventilated area without
sources that may cause sparking or near flammable substances.
•Do not use agents/methods to accelerate defrosting or cleaning other than those
recommended by the manufacturer.
•The cooling circuit must not be punctured.

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How to choose dehumidification technique for a given situation
Compared to the adsorption principle, condensing dehumidification has the advantage of not having
to route the wet air out from the room.
As a general aid to selecting technology for a given drying situation, it can be said that condensing
dehumidification is the primary choice for drying in warm and humid spaces where drying must be
achieved in an energy efficient way and when it is difficult to route the wet air out. One of the
advantages over the adsorption technique is that the heat is not dissipated with the wet air from the
room.
An adsorption dehumidifier with air-cooled condenser like L4, bridges these properties by working
within a large area, including the primary area of the condensing dehumidifier. In other words, it is
the best option for room drying at low temperatures, ideal for emergency damage and construction
dehumidification.
As the graph above shows, condensing dehumidifiers are used in hot and humid spaces if room
drying is required.

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This is how the dryer works
The integrated fan (9) circulates the room air through the dryer. When the moist air passes through
the evaporator (2) it is cooled down to dew point and condensation water is deposited. The water
runs down into the bucket via a condensation filter (4). From there, the condensation runs down into
the bucket (7). When the bucket is full, the drying process stops off and a red indicator lamp
illuminate. The drying process starts again when the presence/overfill sensor (5) registers that the
bucket is empty and in place again.
The dry and cold air then goes through the condenser (3) where it is heated, partly by the compressor
heater (8) and partly by the energy recovered during the previous transformation of water vapour to
water. The dry and hot air is then blown into the premises again.
For optimal operation, machine defrosting is demand controlled and is only activated when the
temperature and humidity conditions are such that frost forms on the cooling coil.
1. Process air filter
2. Evaporator
3. Condenser
4. Drip tray/condensation
filter
5. Overflow sensor
6. Float
7. Bucket
8. Compressor
9. Fan
10. Electronic control

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Overview, controls and connections
The images below show Corroventa K3 HP B with its external parts and controls.
Folding handle as
well as cable wind.
Operation selector:
•MAN position for
continuous operation
•HYG position for
operation controlled by
external hygrostat
kWh counter
Connection for
external hygrostat
Fan speed selector:
•High position for
optimum performance
•Low position for low
sound level
Indicator lamp:
•High/ low Ambient
temperature
•High hot gas temperature
•Pump error
•Presence/overfill
protection for the bucket
Process air filter
Bucket
Durable feet that
allow stackability and
prevent damage to
surfaces.
Folding handle/
Carry handle
Dry air connectors
for hose connection

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Alarm/Indicator lamp
The indicator lamp comes on in the following error cases:
Alarms
Action/advice
1
Ambient temperature too high.
The fan continues to run. The machine
resumes operation automatically if the
temperature drops.
2
Ambient temperature too low.
The fan continues to run. The machine
resumes operation automatically if the
temperature rises.
3
Water level high
The bottom tray is filled with
condensation water. Check that the
condensation hose is not blocked.
Check that the pump runs by holding
the outlets on the condensation water
hose and feel for a small pressure
build up.
4
Internal sensor fault ambient temperature
Internal fault. Disconnect the machine
from power for a few minutes and
restart again. If the alarm remains,
contact a service technician.
5
Hot gas sensor fault
Internal fault. Disconnect the machine
from power for a few minutes and
restart again. If the alarm remains,
contact a service technician.
6
Stop defrosting takes longer than expected
Internal fault. Disconnect the machine
from power for a few minutes and
restart again. If the alarm remains,
contact a service technician.
7
Compressor operation interruption
Internal fault. Disconnect the machine
from power for a few minutes and
restart again. If the alarm remains,
contact a service technician.
8
Fault with temperature sensor in the evaporator
Internal fault. Disconnect the machine
from power for a few minutes and
restart again. If the alarm remains,
contact a service technician.
9
Insufficient Cooling capacity
Internal fault. Disconnect the machine
from power for a few minutes and
restart again. If the alarm remains,
contact a service technician.

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Electrical Connection
The machine is connected to the earthed 230V/50Hz socket. K3 HP B can be connected to a 10A, max
16A, fuse. Electronic control delays the start approx. 2 minutes.
Starting and operating
•Operating range humidity: 30-100% RH
•Operating range temperature: +9 °C to +38 °C
•The dryer must reach ambient temperature before starting, if stored in colder conditions.
1. Place the drier on a firm and flat surface where it is not at risk of overturning. The surface
should not be sensitive to water as some spillage may occur, for example when handling the
condensation water hose.
2. The drier can be positioned against a wall as illustrated. In all other cases, the drier must be
placed at a distance of at least half (0.5) a meter from walls and ceilings to ensure that air
can circulate.
3. If possible, close doors and windows etc. to use all the dehumidification capacity in the
intended space rather than drying the whole house/building. To minimize power
consumption, try to ensure that the ambient temperature is approximately 20°C.
4. If using a condensation water hose, ensure that it is routed to a drain, sink or similar frost-
free runoff for continuous operation.
5. For continuous operation, set the operation selector to I (Man), the upper position. When
using a hygrostat; set the selector to position II (Hyg), the lower position, connect the
hygrostat and set the desired setpoint on it.
6. The ambient temperature must be +9 °C to +38 °C.
The machine must be transported upright and must always be upright during operation.

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7. K3 is equipped with demand-controlled defrosting. If ice forms on the evaporator, the drier
defrosts automatically by stopping the machine. The machine restarts automatically when
the evaporator is clear of ice.
If the dryer must be used with a hygrostat, the Man/Hyg. selector must be set to Hyg. (II), the lower
position. Verify that the hygrostat works by raising and lowering its setpoint and confirm that the
dryer switches off and on. Then set the desired setpoint.
For use on sensitive surfaces, note the following:
When the machine is turned off, any frost on the evaporator thaws and, if there is a lot of frost, this
can cause spillage because the pump is off.
Transportation
Secure the drier well when being transported.
If the machine toppled over during transportation, the machine must stand upright for at least 30
minutes prior to starting.
The machine must be transported upright and must always be upright during operation.
Transport must be carried out in accordance with local regulations.

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Storage
K3 HP B can be stored stacked on top of each other as shown below, thus saving floor space. The
machine must always be stored upright, frost-free and in a ventilated area without sources that may
cause sparking or near flammable substances.
Water bucket
The bucket holds 9 litres. The machine stops when it is full, and the indicator lamp illuminates. To
continue drying, the bucket must be emptied. This is done as follows:
Carefully pull out the bucket while pressing down the catch under the bucket handle. Empty the
water. Then replace the bucket and check that the indicator lamp goes out. Operation then resumes
automatically.

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Maintenance and service
Before starting any maintenance and servicing, the dryer must be unpowered.
Remove the plug from the wall socket.
All maintenance of the electrical system must be performed by a qualified electrician.
All maintenance of the cooling system must be performed by a qualified refrigeration
engineer.
Do not use agents/methods to accelerate defrosting or cleaning other than those
recommended by the manufacturer.
Replace the process air filter frequently, preferably before each new job it is installed for, and clean
the dryer regularly, as dust and dirt reduce capacity and may cause overheating and fire.
Inspection and cleaning of process air filters, water filters and cleaning of bucket
Inspect or clean water filters annually or more frequently if the machine is used in dirty
environments, replace if necessary. Follow the instructions below:
Before starting any maintenance and servicing, the dryer must be unpowered.
Remove the plug from the wall socket.

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Replacing/cleaning process air filter
1. Remove, carefully pull out the
process air filter. Clean or replace, as
necessary. Carefully replace the air
filter, ensure it is inside the support
edge and seals tightly.
Replacing/cleaning condensation water
filter
2. Remove, carefully pull out the
condensation water filter. Clean or
replace as necessary. Check and
clean the drip tray. Reinstall the
water filter carefully.
Accessories and consumables
The following parts are available as accessories and consumables for K3:
Part number
Designation
01100
Hygrostat HS1-5 (5m cable)
1003146
Condensation water filter
1002412
Process air filter

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Fault tracing
Fault symptom
Probable cause
Actions
The capacity of the dryer
seems to be low
Low ambient temperature or
low relative air humidity.
The air flow is heavily reduced
because of dirty filter.
If the dehumidifier is used with
a hygrostat, this may be
incorrect or incorrectly set to
too high a relative humidity.
The machine has, during the
time it was installed, stopped
on numerous occasions
because of either too high or
low ambient temperature. If
this is the case it is also
reflected in the energy
consumption, which does not
seem to correspond to
continuous operation during
the time the machine was
installed.
Check relative air humidity.
Increase the temperature in
the area.
Replace the filter.
Check the external hygrostat
function by raising and
lowering its setpoint and note
that the machine switches off
and on.
Ensure that the temperature is
kept within the machine's
operating range, 9 °C to 38 °C,
and note that the capacity
increases with increasing
temperature.
Technical data
K3 HP B
Operating range, RH, %
30-100%
Operating temperature range, °C
+9 to +38
Rated output, W
550
Actual output, W
400
Dehumidification, max., litres per 24 hours
30
Dehumidification at 30°C, 80% RH, litres per 24 hours
21
Dehumidification at 20°C, 60% RH, litres per 24 hours
12
Air flow, m3/hour
300
Supply voltage, 1 phase, 50Hz, V
230
Safety class
IP X4
Weight, kg
33
Collection receptacle volume, litres
9
Dimensions, length x width x height, mm
500 x 360 x 650
Noise level, dB (A) 3m high speed
52
Noise level, dB (A) 3m low speed
47
Refrigerant
R290