2. FläktGroup
  3. EURF Liquid-coupled heater echanger

FläktGroup EURF Liquid-coupled heater echanger Installation guide

  • Hello! I've reviewed the installation instructions for the Fläkt Woods EURF heat exchangers and related components. This document details the installation process, including instructions for connecting to pipework, air purging, and protection against freezing. It also provides information on water traps, air purging valves, nipples and the use of a fin comb for maintaining the heat exchanger. Feel free to ask me any questions you have about the installation or the product features.
  • What is the recommended depth for the water trap?
    What should be used to protect the heat exchanger from freezing?
    What tool is recommended to restrain pipe connections when tightening?
    What should be used to straighten any deformed fins?
Fläkt Woods 4809 GB 03.01 1 Specifications are subject to alteration without notice
EU Air Handling Unit INSTALLATION
EURF liquid-coupled heat exchangers
Recovery unit EURF
Connections to the pipework should be made by the
pipework contractor. Connect the finned heat exchanger
to the pipework in such a manner that expansion forces
or the deadweight of the pipework will not be applied to
the liquid connections.
The liquid connections are provided with identifica-
tion plates for the inlet and outlet.
Caution!
Use a pipe wrench to restrain the pipe connections of the
heat exchanger when tightening the external pipe connec-
tions.
Insertion sensor
(not included)
Size 8 connection
(female thread)
Fig. 2
Fig. 1
EURF heat recovery unit
The finned heat exchangers are provided with 32 mm
dia. drain connections for connection to a water trap
with a depth of at least 100 mm. Preferably use the
EUAZ-08 water trap.
EUAZ-08 Water trap
Fig. 3
Anti-freeze protection
Some form of anti-freeze monitor should be used to pro-
tect the finned heat exchangers against the risk of damage
by freezing if the heat exchanger is used for outdoor air.
All finned heat exchangers can be equipped with surface
type or insertion type sensors.
The location of the insertion sensor should be in accord-
ance with the instruction plate on the side of the unit
section.
Purging the finned heat exchangers of air
The EURF can be purged of air either automatically or
manually.
Fig. 4 EUAZ-18 manual air purging valve
EUAZ-19 automatic
air purging valve
EUAZ-18
manual
air purging
valve
EUAZ-20-1 nipple
Fig. 5
Fläkt Woods 4809 GB 03.01 2 Specifications are subject to alteration without notice
EU Air Handling Unit INSTALLATION
EURF liquid-coupled heat exchangers
Drainage
The heat exchanger cannot be drained completely. Anti-
freeze must therefore be added to the liquid if there is
risk of freezing.
Fins
Use the QLAZ-20 fin comb to straighten any deformed
fins.
Fig. 6
QLAZ-20 fin comb
Caution!
To avoid injuries, wear protective gloves whenever work-
ing with the fin comb.
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