eCO Side - Installation and Maintenance Manual
6
FläktGroup DC_10176GB_20180924_R3
Specifications are subject to alteration without notice
NOTE! The weight of the duct system
with components must not lay weight on the unit.
4. CONNECTIONS
4.1 DUCT CONNECTIONS
Size 03 (Ø250 mm) and 04 (Ø315 mm) have circular duct connec-
tions. Size 06 has rectangular duct connections (600 x 300 mm).
4.2 POST HEATER, ELECTRICAL
The electrical post heater for size 06 is duct mounted, see sepa-
rate instruction. The rectangular connection is PG on the unit and
the accessories. If the unit is selected with flange connection the
unit is delivered with an adapter for flange. This can be placed on
the unit or on the accessories. If the accessories are not placed
directly at the unit more adapters are available with the code
RDTZ-25-06-1.
4.3 POST HEATER, HOT WATER
Connect the pipes for the heating coil inside the unit according to
pictures below. View from gables.
NOTE! To avoid freezing the temperatures for frost
protection must not be set too low. If the building
has to be left unheated for long periods during
winter, the water must be drained from both the
pipework and the heating coil.
WARNING! Wear protective gloves
when using a fin comb.
Warning - hot water!!
FläktGroup takes no responsibility neither for
the connection of air heaters to the heating
system, nor for damage or injury caused by
incorrect planning, installation or maintenance
of this system. Pipework, valves etc. are to be
designed due to pressure drop and function, not
the dimensions of the air heater connections. The
weight of the pipe work system with components
must not lay weight on the water coil.
PIPE CONNECTION
Size 03 = 3/8”
Size 04 = 12 mm
Size 06 = 12 mm
Maximum operating pressure 3.0 MPa
PREVENTING FREEZING
There is a risk of freezing in the hot water coil at low outdoor
temperatures. This can cause water damage. The risk can
appear:
1. if the temperature of the water is too high. The risk increases
in spring and autumn. Adjust the water temperature in relation
to the outdoor air temperature.
2. if the post heater is oversized. Decrease the temperature of
the water to increase the water flow.
FINS
Any deformed fins can be adjusted using fin comb EQAZ-14.
VENTING
The air must be properly vented from the system to ensure good
function. The venting is made through the pipe system.
Supply air bottom, right-hand version
Supply air bottom, left-hand version
Supply air top, right-hand version
Supply air top, left-hand version
Ø22.5
Ø22.5
03=108
04= 93
06=111
03=108
04= 93
06=111
03=238
04=272
06=304
03=135
04=132
06= 93
03=238
04=272
06=304
03=135
04=132
06= 93
03=108
04= 93
06=111
Ø22.5
Ø22.5
03=108
04= 93
06=111
03=238
04=272
06=304
03=491
04=559
06=534
03=238
04=272
06=304
03=491
04=559
06=534
