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SFK 56 - RAD - ING - Inst.Manual - 2007.1_CSA
1. INSTALLATION
INST
ALLER
INSTALLATION
1.1.13. CONDENSATE DRAIN
FILLING THE CONDENSATE COLLECTION SIPON
Before starting the water heaters you have to fill
the condensate collection siphon in order to avoid
fuel backup through the siphon.
Fill the condensate collection siphon as follows
(see fig. 20):
› Unscrew the “T” cap from the siphon, fill three
quarters of the the siphon with water and screw
the “T” cap back in;
› Connect the dedicated flexible condensate drain
tube “P” to a waste disposal system.
WARNING
After the first months of water heaters
operation, it is recommended to clean the
condensate trap, to eliminate possible deposits
coming from the first flow of the condensate inside
the water heaters technical components. These
deposits could cause a malfunctioning of the trap.
CONDENSATE DRAIN
The water heaters produces a significant amount
of condensate during operation. This condensation
has an acidic pH of 3-5. Follow all local codes and
regulations when disposing of condensate from
the water heaters.
The project engineer should consider the
possibility of installing systems to eliminate the
acidic condensation, according to system power
and buildings’ use.
The system should be designed to avoid the
condensate freezing. Before the water heaters
commissioning, check the correct condensate
flow.
WARNING
Check before connecting the condensate
trap to the drain pipe, for the proper
gradient of water heaters as described in paragraphs
“1.1.8 ATTACHING THE WATER HEATERS TO WALL”.
WARNING
Properly connect the siphon condensate
from the water heaters to a drain system having
adequate slope. Where possible, you should
make this connection using transparent tubing to
check for proper condensate drainage and avoid
stagnation that could cause hazardous backflow of
the condensate into the
water heaters
.
To connect the condensate drain use only
corrosion-resistant material for the drain line.
P
T
fig. 20