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5. TECHNICAL DATA

Technical data

Unit of measure

FARMER 47 kW

Nominal heating capacity water 90/70°C and inlet air 
temperature 0°C.

kW

46,8

Heating power range.

kW

20-47

Maximum airflow. 

m3/h

4400

Maximum range of air stream. 

m

10-25

Number of rows in heater. 

number

2

Weight including water/ without water. 

kg

29/27

Capacity of water. 

dm3

2,0

Air temperature rise. * 

°C

29,6

Maximum temperature of heating agent. 

°C

110

Maximum operating pressure. 

MPa

1,6

Rated current. 

A

0,82

Power supply voltage. 

V/Hz

230/50

Motor power 

W

180

Motor speed

rev/min

1380

Motor IP

-

54

Ferrules diameter 

3/4

Dimensions (height/depth/width)

mm

660/696/384

Technical data of Blowair Farmer 47 kW:

Parameters

Farmer 47 kW 

Inlet and outlet water temperature[°C]

90/70

Inlet air temperature [°C]

-20

-10

0

10

Heating capacity [kW]

61,9

54,2

46,8

39,7

Outlet air temperature [°C]

16,2

23,0

29,6

36,0

Water flow[m³/h]

2,73

2,39

2,06

1,75

Pressure drop in the heat exchanger [kP]

24

19

14

11

Parameters

Farmer 47 kW 

Inlet and outlet water temperature[°C]

80/60

Inlet air temperature [°C]

-20

-10

0

10

Heating capacity [kW]

55,0

47,4

40,2

33,3

Outlet air temperature [°C]

12,2

18,9

25,4

31,8

Water flow[m³/h]

2,42

2,08

1,77

1,46

Pressure drop in the heat exchanger [kP]

20

15

11

8

Parameters

Farmer 47 kW 

Inlet and outlet water temperature[°C]

70/50

Inlet air temperature [°C]

-20

-10

0

10

Heating capacity [kW]

48,1

40,7

33,7

26,9

Outlet air temperature [°C]

8,2

14,8

21,3

27,6

Water flow[m³/h]

2,1

1,78

1,47

1,18

Pressure drop in the heat exchanger [kP]

16

11

8

5

Parameters

Farmer 47 kW 

Inlet and outlet water temperature[°C]

50/30

Inlet air temperature [°C]

-20

-10

0

10

Heating capacity [kW]

34,2

27,1

20,4

13,9

Outlet air temperature [°C]

0,0

6,5

12,9

19,1

Water flow[m³/h]

1,48

1,18

0,88

0,6

Pressure drop in the heat exchanger [kP]

9

6

3

2

6. 3 ASSEMBLY

Blowair Farmer devices can be assembled on the 
wall  or  ceiling  via  holders  or  rotational  holder, 
which  are  additional  elements. The  drawings  be-
low show the ways of assembly. In the bigger ac-
commodation  it  is  recommended  to  assemble 
more  than  one  device.  Follow  the  parameters 
which are provided on the drawings.

Drawing 2. Assembly on the ceiling.

Drawing 3. Assembly on the wall. 

Drawing 4. Example arrangement for few devices 
in the room. 

Drawing 5. Three versions of the assembly position 
while using the holders.

Blowair devices can be assembled on the wall or 
ceiling via holders or rotational holder, which are 
additional elements. It is possible to assemble the 
device in parallel on the angle 60° and 45°.

7.  INSTALLATION INSTRUCTIONS.

The  installation  should  be  made  by  the  qualified 
stuff, who possess the needed rights to install elec-
trical devices, as instructed in the following docu-
mentation. To install the air waiter heaters Blowair 
Farmer 47 kW use the duct size 2 x 2,5mm².

8.  PRECAUTIONS & WARNINGS 

t

All  works  concerning  electrical  installation 
should  be  made  by  the  qualified  stuff,  who 
possess the qualifications due to the domes-
tic and local norms. These recommendations 
include service and disassembly as well. Not 
following  to  the  recommendations  may 
cause  electrocution,  device  damages  or  its 
incorrect work.

t

Before service or exchange of the device it is 
obligatory to cut off the current supply.

t

Do not cover the inlet and outlet of the device.

t

Do  not  use  the  device  in  room  with  high 
moisture or close to the water basin.

t

Do  not  install,  service  the  device  with  wet 
hands or barefoot.

*Temperature rise according to parameters: water 90/70°C and inlet air temperature 0°C. 

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