Heating Options; Hot Water Coils - Lennox Baltic BCK 020 Installation, Operating And Maintenance

HEATING / HEATING HOT WATER COIL
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 connection for possible leaks
Page 66 - IOM / ROOFTOP BALTIC Series - 0704 - E
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.
red indicators
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 connec-
tions.
ANY COIL DAMMAGED BY ELECTROLYTIC CORROSION IS
NOT COVERED BY THE WARRANTY