Swegon GOLD RX Operation And Maintenance Instructions page 39

ERS Regulation 2
Used if the factory preset performance curve in the ERS Control
1 function does not provide the results desired to meet special
needs and conditions. Depending on which setting have been
entered, the installation of an air heater for reheating may be
required.
An individually adjusted curve regulates the ratio between the
supply air and the extract air temperature. The curve has four
adjustable breakpoints..
See the diagram to the right.
Settings:
Value
Extract air temperature
Extract related supply air-2 X1
Extract related supply air-2 X2
Extract related supply air-2 X3
Extract related supply air-2 X4
Supply air temperature set point
Extract related supply air-2 Y1
Extract related supply air-2 Y2
Extract related supply air-2 Y3
Extract related supply air-2 Y4
The set point displacement and Summer night cool functions can
also affect the preset temperatures.
Supply air regulation
Supply air regulation involves maintaining a constant supply air
temperature without consideration to the load in the premises.
This type of regulation can be used when the load and tempera-
tures of the premises are predictable. In most cases this requires
the installation of an air heater for reheating, possibly an air
cooler as well.
Settings:
Value
Supply air (temp. set point)
Extract air regulation
Extract air control involves maintaining a constant temperature
in the extract air duct (the premises), by regulating the supply air
temperature.
This provides a uniform temperature in the premises regardless
of the load and this type of regulation requires the installation of
an air heater for reheating; possibly a cooling coil as well.
The extract air temperature is measured by the air handling unit's
internal temperature sensor. If this internal temperature sensor
does not give an adequate representative extract air temperature
reading, an external room temperature sensor can be installed
and wired to the control unit's communications BUS (optional
COM1-3).
Settings:
Value
Extract air (temp. set point)
Supply air, min.
Supply air, max.
We reserve the right to alter specifications without notice.
Setting Factory
range setting
10-40 °C 15 °C
10-40 °C 20 °C
10-40 °C 22 °C
10-40 °C 22 °C
10-40 °C 20 °C
10-40 °C 18 °C
10-40 °C 14 °C
10-40 °C 12 °C
Setting Factory
range setting
0-40 °C 21 °C
Setting Factory
range setting
0-40 °C 21 °C
0-20 °C 16 °C
8-50 °C 28 °C
ERS Regulation 2
22
1
20
15
10
9
12 15
X = Extract air temperature °C
Breakpoints according to factory setting involve the following:
If the extract air temperature is below 15°C (X1), the supply air
temperature set point will constantly be 20 °C (Y1).
If the extract air temperature is between 15 °C (X1) and 20 °C
(X2), the supply air temperature set point is regulated from 20
°C (Y1) down to 18 °C (Y2) as shown in the curve.
If the extract air temperature is between 20 °C (X2) and 22 °C
(X3), the supply air temperature set point is regulated from 18
°C (Y2) down to 14 °C (Y3) as shown in the curve.
When the extract air temperature is 22 °C (X4), the supply air
temperature set point is regulated from 14 °C (Y3) down to 12
°C (Y4).
If the extract air temperature is over 22 °C (X4), the supply air
temperature set point will constantly be 12 °C (Y4).
GB.GOLDSKE.160901
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