Nibe SAM S42 - Heating Medium Side

Heating medium side
DIMENSIONING THE SYSTEM
1. Check the water flow required for SAM S42 by using the
diagrams "Output transfer to the supply air". Select one
of the diagrams (supply temperature 35°C, 45°C or
55°C).
2. Check that the climate system’s pressure drop is within
the recommended range in the diagram for “Working
range SAM S42”.
3. Check that the pump capacity from the heat pump and
SAM S42 is sufficient for the heating system, using the
diagram for "Capacity, heating medium pumps".
NOTE
For supply air flows that are not in the diagrams,
an estimate (linear interpolation) can be made.
OUTPUT TRANSFER TO THE SUPPLY AIR
The diagrams show the required water flow through the
supply air coil for an 18°C supply air temperature at various
supply air flows.
Select the diagram that best matches the system’s supply
temperature at DOT (Dimensioned Outdoor Temperature).
In the diagram, DOT and supply air flow give the water flow
required.
Supply temperature 35°C at DOT
0
-40 -35 -30 -25 -20 -15 -10 -5 0 5
200
400
600
800
1000
1400
1200
1600
Vattenflöde
(l/h)
18 l/s
71 l/s
53 l/s
36 l/s
Dimensionerad utetemperatur (DUT)
(ºC)
Water flow
DOT
Supply temperature 45°C at DOT
0
-45 -40 -35 -30 -25 -20 -15 -10 0-5 5
50
100
150
200
250
350
300
400
Vattenflöde
(l/h)
Dimensionerad utetemperatur (DUT)
(ºC)
18 l/s
71 l/s
53 l/s
36 l/s
Water flow
DOT
Supply temperature 55°C at DOT
0
-45 -40 -35 -30 -25 -20 -15 -10 0-5 5
50
100
150
200
250
Vattenflöde
(l/h)
18 l/s
71 l/s
53 l/s
36 l/s
Dimensionerad utetemperatur (DUT)
(ºC)
Water flow
DOT
13Chapter 4 | Pipe and ventilation connectionsSAM S42