BALTIC R410A-IOM-0708-E Page 73
HYDRAULIC CONNECTIONS
The hot water coil is fitted with a three way proportional valve
and two isolating shut off valves. Two spanners must be
used to tighten the connections. One spanner must maintain
the valve body when connecting the pipe-work to the main.
Failure to do so may damage the pipes joints and invalidates
the warranty.
Filling up and starting the system
- Adjust the control for Heating by reducing the simulated
ambient temperature down to 10°C
- Check that the red indicators located under the valve
actuator are moving correctly with the signal.
- Fill the hydraulic system and bleed the coil using the
air vents. Check incoming hot water.
- Check the various connections for possible leaks
FREEZE PROTECTION
1) Glycol for freeze protection.
Check the hydraulic system contains Glycol for protection
against freezing.
GLYCOL IS THE ONLY EFFECTIVE PROTECTION
AGAINST FREEZING
The antifreeze must protect the unit and avoid icing under
winter conditions.
WARNING: Mono-ethylene glycol based fluids may produce
corrosive agents when mixed with air.
2) Drain the installation.
You must ensure that the manual or automatic air bleeders
have been installed on all high points in the system. In order
to drain the system, check that all the drain cocks have been
installed on all low points of the system.
HEATING HOT WATER COILS FROZEN DUE TO LOW
AMBIENT CONDITIONS ARE NOT COVERED BY THE
WARRANTY.
ELECTROLYTIC CORROSION
Attention is drawn to the corrosion problems resulting from
electrolytic reaction created by unbalanced earth
connections.
ANY COIL DAMMAGED BY ELECTROLYTIC CORROSION
IS NOT COVERED BY THE WARRANTY
Fig. 45
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