PENSOTTI PCH 50B-H, Instruction Manual

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REGULATION INSTRUCTIONS
42
4.3 Flushing the system
Failure to flush and add inhibitor to the system will invalidate the appliance
warranty.
All systems must be thoroughly drained and flushed using additives
–
corrosion inhibitors and flushing agents/descalers. Pensotti requires the use of
the supplied Fernox Commissioning Kit or individual containers of Fernox F3 or
F5 cleaner and F1 protector. Follow Fernox installation instructions. Failure to
use Fernox F3 or F5 cleaner and F1 protector could void the warranty for all
waterside components.
To flush out the primary side of this unit
a. Fill the boiler as per the filling instructions.
b. Using a drain off cock on the lowest point of the system allow the water to
drain from the system and boiler.
c. In order to flush the system correctly turn off all radiators open the filling loop
and drain cock simultaneously and allow the water to flow through the boiler.
d. Open each individual radiator allowing water to flow through then turn that
radiator off and repeat for all radiators on the system.
e. Turn off the filling loop and close the drain cock open all radiators and open
the filling to fill the system.
f. Continue to fill the system until the pressure gauge reads in the Green
section of the gauge (14.5 psi).
To flush out domestic hot water circuit
a. Open all hot water outlets.
b. Turn on inlet group supply so water enters the boiler; leave to fill until water is
released from the hot water outlets. Turn off all hot water outlets.
c. Connect a hosepipe to the cylinder drain cock and open the drain cock.
d. Allow water to flow through the boiler and out of the drain cock.
e. Turn off water supply, disconnect the hosepipe, close the drain cock and refill
the boiler.
4.4 Filling the condensate trap
The condensation trap must be pre-filled when starting the
boiler for the first time in order to prevent flue gases from
flowing back through the trap. Fig. 5.
The filling operation is carried out as follows (see fig. 1):
▪
Remove plug T and fill the trap S three quarters full
with water;
▪
Replace plug T and connect the drainpipe P into a
condensate discharge trap conforming to current
legislation;
Attention! It is recommended to clean the condensate
trap, after a few months of appliance operation, to
remove deposits/residuals left after the first condensate
passage within the units new components that may
interfere with the correct operation of the trap itself.