13
ADVICE
1.
It is recommended to use bleeding/air release valves at the highest point of the installation.
2.
In the event that the water from the device is drained for a longer period of time, the exchanger tubes should
be blown and dried with compressed air.
3.
Installation should be carried out in such a way that in the event of a failure it is possible to dismantle the
device (use of flexible hoses is recommended). For this purpose, use shut-off valves next to the device.
10.
PARAMETERS OF THE HEATING MEDIUM
The water heat exchanger can be supplied with water or glycol solutions up to 60% . The heat exchanger tubes are made of copper. The
heating medium should not cause corrosion of this material. In particular, the parameters as below should be provided.
Parameter
Value
pH
7,5-9,0
Pollution
Free of sediments/particles
Total hardness
[Ca2+,Mg2+]/ [HCO3-] > 0.5
Oil and grease
<1 mg/l
Oxygen
<0.1mg/l
HCO
ᵌ
60-300 mg/l
Ammonia
< 1.0 mg/l
Sulphides
< 0.05 mg/l
Chlorides, Cl
<100 mg/l
11.
OPERATION
WARNING
1.
The device must be periodically checked. These activities should be performed ONLY by qualified personnel.
If the device malfunctions, turn it OFF immediately and contact FLOWAIR SERVICE SUPPORT.
2.
Do not attempt to repair, move, modify, or reinstall the device yourself. Performing these activities by
unauthorized personnel may result in electric shock or fire.
3.
Do not use a damaged device. The manufacturer is not responsible for damages resulting from the use of a
damaged device.
4.
The device is intended for indoor use at temperatures above 0°C. At temperatures below 0°C there is a risk of
freezing of the medium.
5.
The manufacturer is not responsible for damage to the heat exchanger resulting from the
freezing of the medium in the heat exchanger.
ADVICE
1.
In the case of water supplied air curtains, when the water from the device is drained for a longer period of
time, the exchanger tubes should be blown with compressed air.
12.
CLEANING AND MAINTENANCE
ADVICE
Periodically check (at least twice a year) the dirtiness level of the heat exchanger. Clogging a part of the air intake
causes a decrease in the heating power of the device and adversely affects the operation of the fan.
Cleaning the exchanger should be carried out in accordance with the following guidelines:
•
The power supply must be disconnected during cleaning.
•
Open the service flap.
•
When cleaning the exchanger, be careful not to bend the aluminum fins.
•
It is not recommended to use sharp objects for cleaning, due to the possibility of damage to the lamellas.
•
Cleaning with compressed air is recommended.
•
The exchanger cannot be cleaned with water!
•
Cleaning should be carried out along the slats, with the blowing nozzle perpendicular to exchanger.
