Translation of original operating instructions
42
AL-KO EASYAIR
®
flat
Step
Action
1
Connect the heat exchanger using the counterflow principle (water flow direction opposite the air flow direction in the
unit).
2
Connect the pre flow up or down depending on the air direction.
3
Carefully vent the heat exchanger.
4
Check all of the piping for leaks.
ATTENTION
If the device version control has been selected, neither the valve nor the valve actuator are
supplied. In this case, these are on-site services.
NOTE
The figure shows schematics only of the hydraulic connection of the heater.and the cooler.
The exact hydraulic connection must be carried out at the discretion of the heating specialist.
If the heater/cooler module is the last component before the on-site duct, a duct-side inspec-
tion opening must be provided directly on the register/droplet eliminator. This is used for
inspection and cleaning.
Function
Heater and cooler are integrated into the temperature control. The temperature is set by controlling the cold water and
hot water actuating valves.
ATTENTION
At temperatures below freezing, the heat exchanger must be either drained and blown out
with compressed air, or filled with a commercially available antifreeze with corrosion inhibiting
additive due to the risk of freezing and corrosion.
On-site siphon
ATTENTION
The drain pipe and the siphon are to be kept frost-proof on-site.
A siphon is also required on-site for the cooler.
Each pan drain must be fitted with a separate siphon.
5.6.9
Connection of cooler module (KWK option)
For additional cooling of the supply air, a pump cold water air cooler (PKW) can be used.
To avoid condensate transfer into the duct, a droplet eliminator (DE) is installed behind the cooler.
The feed and return lines are to be professionally connected on-site.
NOTE
Do not mix up the feed and return lines when connecting the pipelines.
The medium inlet is located on the air outlet side (
