Dantherm DFC-350-230V-C3-W-FG User manual

DFC 350 and 450
Service manual
No. 095821 • rev. 1.5 • 19.12.2019
EN

2
Overview
Introduction
This is the service manual for the Displacement Free Cooling unit DFC 350 & 450.
The DCF
350-450 unit is usually shipped including a control unit. This control unit,
CC3000 is
covered in a separate service manual.
Table of content
The Service Manual
covers the following main topics:
Topic
See page
General information
3
Variant syntax
4
General principle for DFC units
5
Parts and function
6
How to mount the DFC 350 and DFC 450
7
Starting up
10
Technical data DFC 350
10
Technical data DFC 450
12
Capacity and data diagrams
13
Dimensions
15
Installation alternatives
18
Wiring diagram – 48V DC
19
Preventive maintenance
21
Spare parts list
23
Appendix
24

3
General information
Introduction
This section
provides general information about the unit and this Service Manual.
Target
group
The target group for this Service Manual is the technicians who install, maintain and
repair the unit.
Warning
It is the responsibility of the operator to read and understand this service manual
and other information provided and to use the correct operating procedures.
The product should only be operated by qualified (trained) personnel. Failure to
do so can resu
lt in personal injury or equipment damage.
Read the entire manual before the initial start
-up of the product. It is important to know
the correct operating procedures for the product and all safety precautions to prevent
the possibility of property damage
and/or personal injury.
Products
The Service Manual cover the following products:
Name
Type No.
DFC 350
299763
DFC 450
299745
Copyright
Copying of this service manual, or part of it, is not allowed without written
permission
from Dantherm Air Handling A/S.
Reservations
The service manual is subject to changes without notice.
CE
-Declaration of
Conformity
Dantherm Air Handling A/S, Marienlystvej
65, DK7800 Skive hereby declare that the
DFC
unit is in conformity with the following directives:
2006/42/EC Directory on the safety of machines
2014/35/EU Low voltage directive
2014/30/EU EMC directive
The product is manufactured with components whi
ch follow the application standards
for Low Voltage Directive and in case of norms for EMC in EU countries.
Recycling
The
DFC unit is designed to last for many years. When the time comes for the unit to
be recycled, the
unit should be recycled according to national rules and procedures to
protect the environment.

4
Variant syntax for DFC 350 and DFC 450
DFC -450 -48V -C3- W- FG- X10
Customized model with min. speed and FR+NL language on controller
Filter guard (standard)
Wall mounted (standard)
C3 (including CC3000 controller)
-PC3 (excluding CC3000, but prepared for connection to CC3000 –
two fan boxes at one CC3000)
-48VDC
-230V AC
-350
-450
DFC = Displacement Free Cooling
Example
DFC 450 – 48V DC – CC 3000 – Wall – Filter guard
Please note that a bag filter is not included but must be ordered separately
Art. No: 299749, F5 bag filter 450 x 215 x 1600mm
Art. No: 840058, F6 bag filter 450 x 215 x 1600mm

5
General principle for DFC units
General
A
DFC (Displacement Free Cooling) unit supplies the cold outdoor air through a diffu-
sor filter with very low velocity.
This will make a dune of cold air at the floor and up to a
height of 1,6 meter in the shelter
. The temperature at the ceiling will be relatively high.
The ide
a is to remove more heat with lower air volume in order to save power con-
sumption of the fan.
This is only possible if a large temperature difference between supply air and air out of
the shelter can be achieved.
Efficiency
The
efficiency of the DFC unit depends very much on the circulation of the internal air
circulation in the telecom equipment and in the shelter. It is therefore very necessary to
do a thorough test of the airflow
s in the shelter before initiating a bigger roll out.
Illustration
The illustration below shows the DFC
and some external parts unit mounted in a con-
tainer
:
Parts
This table describes the different part
(from right to left) in the illustration above:
Part
Description
Outdoor Temp sensor
Measures the outdoor temperature (NTC resistor)
DFC unit
The unit including bag filter and air inlet hood with com-
pact filter
Controller
Climate unit controller CC3000 or other
Heater
External electrical heater
Supply 48V DC/230 V AC
Supply to the DFC
Room sensor GT1
Measures the indoor temperature (NTC resistor)
Active cooling unit
Existing airconditioner (often split unit)
Damper
Electrical damper allowing warm air to leave the shelter
Continued overleaf

6
Parts and function
Introduction
The DFC units have a simple but very robust design
. The parts are shown below.
Illustration
This drawing shows the parts of the DFC unit.
It includes a fan and a filter guard
Parts
This table describes the parts in the illustration:
Part
Description
Filter guard
Measures the pressure on both sides of the filter. When the pressure
drop exceeds 150 Pascal (factory setting) the built-in switch which is
connected to the controller will open and cause an alarm.
Fan
The fan is a centrifugal fan either 48 V DC or 230 V AC. See tech-
nical data for further information.
Bag filter
The Bag filter is either filter class F5 or F6, see technical data for fur-
ther information.
Filter guard
Fan
Bag filter
Satelite PCB
DC or AC supply

7
How to Mount the DFC 350 or DFC 450
Procedure
Follow these steps to mount
the DFC 350 or DFC 450:
Step
Action
1
Make a Ø245 or Ø 330mm hole in the wall about 1900 mm above the floor.
2
Demount the front cover of the unit by removing the 2 fluted grip knobs.
3
Hold the unit in position and fasten it to the wall with minimum 4 screws.
4
Slide the filter into place and remount the front cover.
DFC 350
DFC 450
f
1
2
3
4
4
3
2
1

8
How to Mount the DFC 350 or DFC 450, continued
Air inlet hood
Put sealing
rubber on the flanges of the hood, hold it in position above the inlet hole
and
fasten it to the wall.
Exhaust damper
Cut out
an exhaust opening W: 1000xH: 210mm above the door (when possible).
Hold the motorized damper
in position and fasten it to the wall.
Continued overleaf

9
How to Mount the DFC 350 or DFC 450, continued
Exhaust hood
Put sealing
rubber on the flanges of the exhaust hood.
Hold it in position and fasten it to the wall.
Sensor placement
Example

10
Starting up
Installing newest
firmware
Insert SD card into CC 3000 controller, switch power on and the firmware
update will
start automatically. Wait while the firmware is installed.
(See, where to insert SD card and find more details about this process in the separate
CC 3000 manual)
Choose config file
When the installation process is finished, the CC 3000 displa
y will automatically open
the product configuration menu.
Different config
-files will show up depending on the variant of your product. Choose
the
variant specific configuration
that fits best to your cooling needs (see control strategy
on page
25) , if different options are available.
Variant
Config File
Using Control strategy…
DFC-350-230V-C3-W-FG
DFC350AC
Standard configuration for
DFC 350-450 AC/DC
•Standard control strategy
DFC-450-230V-C3-W-FG
DFC450AC
DFC-350-48V-C3-W-FG
DFC350DC
DFC-450-48V-C3-W-FG
DFC450DC
DFC-350-230V-C3-W-
FG_X10
DFCNOMIN
WITHOUT minimum speed
•normal control strategy. Fan stops
at low temperature.
•FR + NL language incl. on SD card
DFCMINSP
WITH minimum speed
•fan continues running even at low
temperatures
•FR + NL language incl. on SD card

11
Technical data DFC 350
Introduction
This Free Cooling unit is very compact, quiet and economic due to the Displacement
Free Cooling system. In this product the EC
-fan signal is reduced to 5V to achieve the
optimized performance.
Air flow and sound
This table shows the technic
al data for airflow and sound pressure:
Parameter
48V DC
230V AC
Max air flow
514 m3/h
514 m3/h
Max air flow
143 l/s
143 l/s
Free cooling capacity at Δt=5°C
3 kW
3 kW
Max power consumption
40 W
35 W
Sound pressure at 5m from shelter
36 dB(A)
34 dB(A)
Sound pressure at 10m from shelter
31 dB(A)
31 dB(A)
Cabinet
This table shows the specifications for the cabinet
:
Specification
Designation
DFC 350
Weight
Controller included
10 kg
Metal sheet material
Aluzinc AZ150
0,8-1,5 mm
Fan motor
This table shows the data for the fan motor:
Voltage version
48V DC
230V AC
Voltage nominal
48V DC
230V AC
Current
2,3 A
0,9 A
Max power consumption at standard settings
40 Watt
35 Watt
Speed
1500 rpm
1450 rpm
Filter
This table shows the data for the filter:
Specification
Filter data
Type
Bag filter
Filter Class
M5
M6
Total Area
1,4 m2
1,4 m2
Recommended filter monitor settings
200 Pa
200 Pa

12
Technical data for DFC 450
Air flow and sound
This table shows the
technical data for airflow and sound pressure:
Voltage version
48V DC
230V AC
Max air flow
1100 m3/h
1100 m3/h
Max air flow
306 l/s
306 l/s
Free cooling capacity at Δt=5°C
5 kW
5 kW
Max power consumption
40 W
61 W
Sound pressure at 5m from shelter
36 dB(A)
34 dB(A)
Sound pressure at 10m from shelter
31 dB(A)
31 dB(A)
Cabinet
Data and dimensions of the cabinet are shown in the following
table:
Specification
Designation
DFC 450
Weight
Controller excluded
13 kg
Metal sheet material
Aluzinc AZ150
0,8-1,5 mm
Fan motor
Data of the fan motor is shown in the following table:
Voltage version
48V DC
230V AC
Voltage nominal
48V DC
230V AC
Current
2,3 A
1,1 A
Max power consumption
40 W
54 W
Speed
1100 rpm
1000 rpm
Filter
In the table below the data of the filter are specified:
Specification
Filter data
Filter data
Type
Bag filter
Filter Class
F5
F6
Total Area
2 m2
Recommended filter monitor setting
100 Pa
150 Pa
Can be increased to
200 Pa
250 Pa

13
Capacity and data diagrams
Performance
The diagram below shows data for DFC 350:
Airflow & Pressure
drop
The diagram below shows data for DFC 350
:
Performance
The diagram below shows data for DFC 450:
Continued overleaf
DFC 350 Performance & Power Consumption
5
11
20,0
30
48
75
114
0
100
200
300
400
500
600
700
800
900
1000
20% 30% 40% 50% 60% 70% 100%
% fan speed
Airflow [m3/h]
0
500
1000
1500
2000
2500
3000
3500
4000
4500
5000
Cooling performance [W]
Power conption DFC 450 [W]
Air flow m3/h
Cooling capacity (kW @ ∆t=5°C)
Cooling performance is
calculated from outdoor
temperature and indside
temperature in 1,6m height
Fan working range 15% to 50%
DFC 350 Airflow & Pressure drop
0
20
40
60
80
100
120
140
160
180
20% 30% 40% 50% 60% 70% 100%
Fan % speed
Pressure drop [Pa]
0
100
200
300
400
500
600
700
800
900
1000
Airflow [m3/h]
Pressure drop Filter (Pa)
Air flow m3/h
DFC 450 Performance & Power Consumption
8
15
25,0
37
61,7
104
0
200
400
600
800
1000
1200
1400
1600
20% 30% 40% 50% 70% 100%
% fan speed
Airflow [m3/h]
0
1000
2000
3000
4000
5000
6000
Cooling performance [W]
Power conption DFC 450 [W]
Air flow m3/h
Cooling capacity (kW @ ∆t=5°C)
Cooling performance is
calculated from outdoor
temperature and indside
temperature in 1,6m height
Fan working range 15% to 50%

14
Capacity and data diagrams, continued
Airflow & Pressure
drop
The diagram below shows data for DFC 450
:
DFC 450 Airflow & Pressure drop
0
20
40
60
80
100
120
20% 30% 40% 50% 70% 100%
Fan % speed
Pressure drop [Pa]
0
200
400
600
800
1000
1200
1400
1600
Airflow [m3/h]
Pressure drop Filter (Pa)
Air flow m3/h

15
Dimensions
Illustration
DFC 350
The drawings below illustrate the dimension
s of the DFC 350.
Continued overleaf

16
Dimensions, continued
Illustration
DFC 450
The drawings below illustrate the dimensions of the DFC 450.
Continued overleaf

17
Dimensions, continued
External ac-
cessories
Rain hood Art. No:
299653
Exhaust air hood
800x220 mm:
Art. No: 299942
Motorized damper for
exhaust air
24V dc 800x211mm.
Art. No. 074609
HOLE CUT OUT
DIMENSIONS (WxH):
800x210mm

18
Installation alternatives
Introduction
The pictures below shows
the three ways the Displacement Free Cooling unit can be
mounted and still make filter exchange easy. There are three different lids, of which on-
ly one should be opened to take out and replace the bag filter.
Front service
Left and
right
service

19
Wiring diagram – CC3000

20
Connections 48V and 230V
Ground
Electrical
Connection
Connect the DFC
350/450 to ground by using the nut marked with ground symbol.
For more wiring information, please see section
Wiring Diagram.
For electrical connection of the unit see the Service Manual for the specific controller
you are using, or see “Wiring Diagram”.