Dehumidifiers
Take control of humidity and condensation with the Calorex
industry leading range of dehumidifiers
fullll range off dehumidifiers
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Leaders in our field:
Cold stores
Utility buildings
Bottling & food plants
Archives, museums & libraries
Computer rooms
Switching & power stations
Electronics production
Sports halls
Wet clothes drying rooms
Ice rinks
Pharmaceutical production
Manufacturing areas
Process drying
Boiler rooms
Ship building & offshore
Underground rooms
THE CHALLENGE
Atmospheric air contains moisture which is a problem to
materials and manufacturing processes
Protect your environment
A false economy
Even when you cannot see it, moisture in the
Traditionally the problem was disguised by
form of water vapour is all around us, held in
the use of heat or ventilation. This process is
suspension in the air. The relative humidity of
exceptionally energy inefficient and reliant
the air in many cases determines the extent
on introducing outside air that is generally
of corrosion of certain materials, the speed
not suitable unless expensively heated.
at which moulds develop and the rate of
Drying by traditional heating involves
increase of bacteria that cause decay.
continuously warming a stream of outside
Most materials and goods are best stored
air on a constant ‘in and out’ cycle.
under cool dry conditions.
Heating and ventilation is extremely energy inefficient and expensive, luckily a solution
does exist to make the air drier without heating – Calorex dehumidification
Relative Humidity
to define how much water vapour can be
held in the air at a given temperature as a
percentage of what it could contain at
Corrosion
saturation (100% RH). That is when the
relative humidity reaches the level at
Product deterioration
which air can hold no more moisture. The
maximum amount can vary according to
Condensation
its temperature - warmer air is capable of
holding more moisture than colder air.
Damp
Mould and mildew
Corrosion Speed
of Steel
Relative humidity (RH) is the expression used
Rust increase in 55 days, grammes per square metre
The challenges of
excess moisture:
12
9
6
3
0
20
40
60
80
Relative humidity in %
Prolonged drying
Manufacturing delays
Discomfort
With an RH of over 60% the rate
of corrosion on steel rises rapidly.
At an RH of approximately 50%,
virtually no corrosion occurs.
100
Drying flooded areas or
new buildings
Storage of:
- vehicles
- timber
- furniture
Preservation of buildings,
plant, ships, drilling platforms
& turbines
- metals
- chemical/technical materials
- electronic & electrical components
- ceramics & textiles
- paper & cardboard boxes
- beers, wines & spirits
Applying industrial coatings
Maintaining bridges & locks
- hygroscopic substances
- sugar, salt, coffee, cocoa, herbs,
tea etc.
- flowers & plants
- livestock & zoo animals
- military plant & equipment
THE SOLUTION!
The Calorex answer to this problem is its wide range
of dehumidifiers suitable for every environment from
warehouses and sub-stations to museums and garages
A better way
Dehumidification is much more sophisticated
every need. From high tech problems
than heating. It recirculates the same air and
requiring sophisticated ‘total loss’ or ‘keep
physically removes moisture from it. This
dry recirculation’ systems to a simple off
alleviates the need to continuously reheat
the shelf mobile dehumidifier to plug in
incoming air. Not only that, a dehumidifier
and go - Calorex are unique problem
will cleverly convert energy taken out of the
solvers in their field.
room as moisture (latent energy), to create
‘sensible energy’ that can be used to heat the
room, accelerating the drying process.
Problem solved
Our wide range of units and operating
temperatures ensure there is a system to fit
How a Calorex Dehumidifier Works
Expansion
28˚C
20˚C
Humid Air
Evaporator
Condenser
Compressor
Dry, Warm
Air
Key benefits of a Calorex
dehumidifier:
✓ Energy efficient
✓ Low temperature operation
✓ Heat recovery to air
✓ Automatic operation
✓ Quality construction
✓ Optional features
✓ Simple installation
✓ Minimal maintenance
✓ Long service life
✓ Comprehensive service network
✓ Environmentally friendly
R407C refrigerant
80%
Condensate
to waste
40%
Principles of operation – air to air dehumidifier
The process of dehumidification involves moisture-laden air being drawn into a dehumidifier
where the air passes across a refrigerated coil. The air is rapidly cooled below its dew point,
condensing the water vapour and recovering its latent heat energy for re-use. The cooled air is
then passed across the condenser where it is reheated and returned to the served area at the
required lower relative humidity.
Calorex is the world’s leading designer and manufacturer of industrial and commercial dehumidifiers
WALLMOUNTED
www.calorex.com
A wall mounted compact dehumidifier designed to fit above
a standard doorway
OTW 15
✓ Especially for use in:
✓ Self contained with fully
✓ Integral humidistat
✓ Tamper proof controls
- Changing rooms
- Store rooms and stairwells
- Cellars and basements
SPECIFICATIONS
✓ Epoxy polyester painted zintec
automatic operation
- Public buildings
units
steel cabinet
✓ Hot gas defrost for low temperature
operation
✓ Air filter
Performance Data
OTW15AX
OTW 15
Technical data
Operating temperature range
Dehumidification @ 30°C/60%RH
Heat recovered to air @ 30°C/60%RH
Airflow
External static pressure
Sound pressure level @ 3m
°C
0 - 35
kg/24h
15
kW
0.9
m³/h
225
Pa
0
dB(A)
Refrigerant
53
R407C
Electrical data
Supply
Nominal power consumption
V/ph/Hz
230/1N/50
kW
0.43
FLA
amps
3.8
Maximum supply fuse
amps
10
LRA (compressor start)
amps
18
Width
mm
825
Depth
mm
363
Height
mm
320
Weight
kg
33
mm ID
10
The OTW15 is
tamper proof –
ideal for use in
public buildings
ELECTRICAL
INPUT kW*
1.0
0.60
0.9
0.55
0.8
0.50
20˚C
0.7
0.45
15˚C
0.6
0.40
80%
30˚C
25˚C
10˚C
0
5
10
15
Litres/24 hours
Free advice from
staff qualified by
years of experience
and strong technical
knowledge
Dimensions
Condensate drain size
SENSIBLE HEAT
OUTPUT kW* TO AIR
40% 50% 60% 70%
35˚C
(flexible plastic hose)
Options
• Through the wall version
CALOREX OTW 15
20
25
30
0.5
0.35
*AT 60% RH
WALLMOUNTED
Wall mounted compact dehumidifiers with air heating options
DH 30 / 60
✓ Ideal for dehumidification in:
✓ Self contained with fully automatic
- Warehousing and storage
- Electrical sub-stations
- Sports clubs and changing rooms
SPECIFICATIONS
✓ Plastisol coated galvanised steel
operation
- Clothes drying rooms
units
cabinet
✓ Integral humidistat
✓ Polyester coated evaporator
✓ Hot gas defrost for low temperature
operation (X models)
✓ Quiet centrifugal fans
and condenser
DH30A/AX
DH30AP/AXP
DH60A/AX
DH60AP/AXP
Performance Data
DH 30
Technical data
Operating temperature range
Dehumidification @ 30°C/60%RH
Heat recovered to air @ 30°C/60%RH
Airflow
External static pressure
Sound pressure level @ 3m
°C
15-35/0-35 15-35/0-35 15-35/0-35 15-35/0-35
SENSIBLE HEAT
OUTPUT kW* TO AIR
30% 40% 50% 60% 70% 80%
35˚C
30˚C
ELECTRICAL
INPUT kW*
2.15
0.8
1.9
0.75
kg/24h
30
30
60
60
25˚C
1.7
0.7
kW
1.9
1.9
3.5
3.5
20˚C
1.5
0.65
m³/h
700
700
1280
1280
15˚C
1.35
0.6
Pa
0
0
0
0
10˚C
dB(A)
Refrigerant
52
52
54
54
R407C
R407C
R407C
R407C
0
10
20
30
40
50
60
1.2
Litres/24 hours
0.55
*AT 60% RH
DH 60
Electrical data
Supply
Nominal power consumption
V/ph/Hz
kW
230/1N/50 230/1N/50 230/1N/50 230/1N/50
0.75
0.75
1.2
30˚C
1.1
1.0
2.3
0.9
12.7
7.5
24.2
Maximum supply fuse
amps
10
20
13
32
15˚C
LRA (compressor start)
amps
15.8
15.8
30.0
30.0
10˚C
0
20
40
60
Litres/24 hours
kW
Flow rate
optional
standard
optional
standard
LPHW
electric
LPHW
electric
3.0
2.0
5.0
4.0
5.0 L/min
-
5.0 L/min
-
782
782
1247
1247
Dimensions
Width
mm
Depth
mm
256
256
256
256
Height
mm
648
648
648
648
Weight
kg
40
40
60
60
mm ID
10
10
10
10
Condensate drain size
(flexible plastic hose)
CALOREX DH 30 / 60
Options
• Through the wall version
• Electric air heater
• LPHW air heater
• Inlet filter kit
• Remote humidistat
1.2
3.1
4.4
Heat output
3.5
2.6
amps
Type
1.3
25˚C
FLA
-
ELECTRICAL
INPUT kW*
4.1
1.2
20˚C
Heater
SENSIBLE HEAT
OUTPUT kW* TO AIR
30% 40% 50% 60% 70% 80%
35˚C
80
100
120
1.9
0.8
*AT 60% RH
HIGH CAPACITY
www.calorex.com
Floor standing high performance dehumidifiers with air
heating options
DH 75 / 110
✓ For a wide range of applications:
✓ Integral humidistat
✓ Polyester coated evaporator and
- Museums and art galleries
- Offices and archives
- Sports halls and gyms
SPECIFICATIONS
✓ Self contained with fully automatic
operation
- Warehousing and storage
✓ Stove enamelled aluminium cabinet
✓ Hot gas defrost for low temperature
operation
✓ Quiet centrifugal fans
condenser
units
DH75AX
DH110AX
DH110BX
Performance Data
DH 75
Technical data
Operating temperature range
Dehumidification @ 30°C/60%RH
Heat recovered to air @ 30°C/60%RH
Airflow
External static pressure
Sound pressure level @ 3m
40%
35˚C
50% 60% 70% 80%
SENSIBLE HEAT
OUTPUT kW* TO AIR
ELECTRICAL
INPUT kW*
4.8
1.6
°C
5 - 35
5 - 35
5 - 35
30˚C
4.0
1.5
kg/24h
86
108
108
25˚C
3.3
1.4
kW
4.0
5.2
5.2
20˚C
2.8
1.3
m³/h
1180
1180
1180
15˚C
2.3
1.2
Pa
0
0
0
10˚C
dB(A)
Refrigerant
53
53
53
R407C
R407C
R407C
0
20
40
60
80
100
120
140
160
1.7
Litres/24 hours
1.1
*AT 60% RH
DH 110
Electrical data
35˚C
Supply
30˚C
Nominal power consumption
V/ph/Hz
kW
230/1N/50 230/1N/50 400/3N/50
1.5
2.1
40% 50% 60% 70% 80%
4.2
1.8
1.6
2.7
1.4
9.5
12
5.5
Maximum supply fuse
amps
13
20
10
15˚C
LRA (compressor start)
amps
55
66
30
10˚C
0
20
40
60
80
100
Litres/24 hours
Flow rate
optional
optional
optional
LPHW
LPHW
LPHW
kW
8.9
8.9
8.9
L/min
9.6
9.6
9.6
mm
1520
1520
1520
Dimensions
Width
Depth
mm
385
385
385
Height
mm
796
796
796
Weight
kg
143
144
144
mm
15
15
15
Condensate drain size
(brass compression)
CALOREX DH 75 / 110
Options
• Through the wall version
• LPHW air heater
• Remote humidistat
2.1
3.4
amps
Heat output @ 80°C flow
2.5
5.2
25˚C
FLA
Type
ELECTRICAL
INPUT kW*
5.9
2.0
20˚C
Heater
SENSIBLE HEAT
OUTPUT kW* TO AIR
120 140 160 180
2.1
1.3
*AT 60% RH
HIGH CAPACITY
Floor standing high performance dehumidifiers for commercial
premises and industrial environments
DH 150 / 300 / 600
✓ Humidity and dew point control for: ✓ Self contained with fully automatic
- Warehousing and equipment storage
- Metal and spare parts storage
- Electrical sub-stations
- Museums and furniture storage
SPECIFICATIONS
units
operation
✓ Integral humidistat
✓ Polyester coated evaporator and
✓ Plastisol coated galvanised steel cabinet
✓ Hot gas defrost for low temperature
operation (X models)
✓ Reverse cycle defrost for very low
condenser
DH150AX
temperature operation (Y models)
DH150BX
DH300BY
DH600BY
Performance Data
DH 150
Technical data
Operating temperature range
Dehumidification @ 30°C/60%RH
Heat recovered to air @ 30°C/60%RH
Airflow
External static pressure
Sound pressure level @ 3m
30% 40% 50%
35˚C
60% 70%
SENSIBLE HEAT
OUTPUT kW* TO AIR
80%
ELECTRICAL
INPUT kW*
10.8
3.2
°C
0 - 35
0 - 35
-15 - 35
-15 - 35
30˚C
9.4
3.0
kg/24h
150
150
300
600
25˚C
8.2
2.8
kW
7.4
7.4
14.7
29.7
20˚C
7.0
2.7
m³/h
2200
2200
5000
9000
15˚C
6.2
2.6
Pa
30
30
60
80
10˚C
dB(A)
Refrigerant
58
58
66
63
R407C
R407C
R407C
R407C
0
50
100
150
200
250
300
5.4
Litres/24 hours
2.5
*AT 75% RH
DH 300
SENSIBLE HEAT
30% 40%
50% 60%
70%
80% OUTPUT kW* TO AIR
22.4
ELECTRICAL
INPUT kW*
Electrical data
35˚C
Supply
30˚C
19.8
6.2
17.5
5.9
Nominal power consumption
FLA
V/ph/Hz
230/1N/50 400/3N/50 400/3N/50 400/3N/50
kW
2.5
2.5
6.7
10.0
25˚C
amps
19.0
8.1
15
26
20˚C
15.1
5.5
13.3
5.1
Maximum supply fuse
amps
30
16
24
35
15˚C
LRA (compressor start)
amps
61
30
101
135
10˚C
0
100
200
300
400
500
600
11.4
amps
28
13
34
55
optional:
top box
top box
-
-
4.7
*AT 75% RH
Litres/24 hours
LRA (compressor soft-start option)
6.8
DH 600
Heater
Type
Heat output
Power supply
kW
V/ph/Hz
electric
electric
-
-
9kW
9kW
-
-
-
-
230/1N/50 400/3N/50
FLA
amps
36
12
-
-
Maximum fuse size
amps
50
16
-
-
SENSIBLE HEAT
30% 40% 50%
35˚C
60%
70%
12.0
25˚C
34
11.3
20˚C
29
10.5
15˚C
25
9.8
0
200
400
600
800
1000
Dimensions
660
660
980
1730
Depth
mm
660
660
826
1250
Height
mm
1313
1313
1475
1600
Weight
kg
130
130
220
497
BSPM
¾
¾
1½
1½
Condensate drain size
Options
• Top or rear fan outlet
• Top discharge box with heater options
• High pressure fan
• LPHW heater
• Return air filter
• Heat recovery to water
• Condensate pump
• External condenser unit
• Compressor soft start
• Remote humidistat
13.0
38
Litres/24 hours
mm
ELECTRICAL
INPUT kW*
30˚C
10˚C
Width
80% OUTPUT kW* TO AIR
43
CALOREX DH 150 / 300 / 600
1200
22
9.0
*AT 75% RH
Technical support and service:
Comprehensive engineering support is provided
by our experienced and well qualified team
COMPREHENSIVE SUPPORT
Calorex dehumidifiers are designed
and are supported in the UK by our
comprehensive customer service organisation.
To ensure equipment is correctly sized and
specified, we offer a computerised quotation
service which enables an accurate speedy
response to enquiries.
Comprehensive engineering support
is provided by our experienced and
well qualified team.
Dehumidifiers DH v1
tel +44 (0)1621 856611
www.calorex.com
Maldon CM9 4XD United Kingdom