eCO Side - Installation and Maintenance Manual
15
FläktGroup DC_10176GB_20180924_R3
Specifications are subject to alteration without notice
STARTING THE UNIT
When the electrical connections are made and all the accesso-
ries are mounted the unit is ready to start up.
1. Turn the safety switch to 1 (ON).
2. Start the unit.
DAMPERS
Check that all dampers opens and closes correctly.
VALVE ACTUATORS
Check that valve actuators for heating and cooling works correctly.
DIRECTION OF ROTATION
Check that the direction of rotation for the heat exchanger corre-
sponds to the alternatives below.
LEFT-HAND VERSION:
The rotor should rotate upwards when looking from the front.
RIGHT-HAND VERSION:
The rotor should rotate downwards when looking from the front.
AIR FLOW MEASUREMENT
The eCO Side has measuring nipples for air flow measurement.
Using a measuring pressure
D
pm (Pa) and a constant (k) the air
flow q (R/W) can be calculated using the following equation:
NOTE! When the unit is supplied with
Constant Air Volume Control there will be
no measuring nipples on top of the unit.
TEMPERATURE CORRECTION
The air flow formula above applies to air with a temperature of
+20 °C. At other air temperatures the air flow must be corrected
using the formula:
The value of the constant (k) is shown in the table below.
q =
1000
k
D
p
m
x
Size
03
04
06
k-value extract air fan
58,4
51,5
49,2
k-value supply air fan
62,5
52,1
51,4
The measuring pressure,
D
pm, is the difference between the
pressure in the empty section at the fan inlet and the pressure
inside the inlet cone. A manometer (RDTZ-56) can be connected
to view the measuring pressure. This is used as a reference for
monitoring the unit.
If the unit is supplied with Constant Air Volume control the air
flow can be read in the control panel.
q = q
20
(273 + t)
293
, m
3
/s
8. TESTING OF FUNCTIONS
q = actual air flow
q
20
= calculated air flow in formula abowe
t = current temperature in ° C
FILTER, FINAL PRESSURE DROP
It is time to replace the filters when the final pressure drop is
reached, see table below.
SIZE 03
Air flow m
3
/s
0,15
0,25
0,35
Supply air/Extract air
119
148
177
SIZE 04
Air flow m
3
/s
0,15
0,25
0,35
Supply air/Extract air
125
142
159
SIZE 06
Air flow m
3
/s
0,15
0,25
0,35
Supply air/Extract air
121
139
157
FILTER MONITOR
When using filter monitors use the values in the table above. If
the unit is supplied with Constant Pressure control increase the
final pressure drop with 50 Pa.
