23
code HG0141.00GB ed.A-2008
LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
HG140.00_IM_015
HG140.00_IM_01
1
HG140.00_IM_049
A
5.3. Condensate drain
The LK series heaters are flue gas condensing appliances. The
lowering of the flue gas temperature in the tube bundle of the
heat exchanger causes the formation of condensate that must
be duly drained outside the heat exchanger.
To this end, the appliances are already fitted as standard with
a condensate drain kit made up of:
•
trap equipped with a detection electrode;
•
condensate drain fitting (condensate drain hole placed at
the back of the appliance).
The trap, installed inside the heater, has a condensate detection
electrode that shuts down the generator in case the condensate
does not flow out correctly from the drain, in order to prevent
condensate from remaining inside the heat exchanger. A pos-
sible cause of condensate drain failure is the freezing of the
condensate within a section of the draining circuit. To prevent
the risk of freezing, it is advisable to install the condensate
drain pipe as long as possible inside the rooms to be heated.
Condensate neutralisation vessel
Condensation detection electrode
Trap
Condensation discharge
hole
DETAIL
A
:
Condensate drain
fitting
NOTE:
during the first installation, remember to remove
the condensation drain protection cap, to allow its reg-
ular operation.
Connection of the condensate drain fitting
THE
condensate drain fitting must be connected with a drain
pipe. The condensate drain fitting consists of a straight hose
barb quick connector with an external diameter of Ø 19mm.
The pipe must be sized according to the maximum amount of
condensate produced by the appliance (see Par. "Technical
data"), and made of a material suitable for the passage of
condensate with an acidity degree between PH 2.8-3.9 (for
example: aluminium, stainless steel, silicone, Viton, EPDM,
PVC or other suitable plastic material).
ATTENTION: Do NOT use copper, galvanized iron or
other material NOT suitable for condensate passage
when connecting the condensate drain fitting.
Neutralising the condensation
The condensate produced by the appliance has an acidity
degree between PH 2.8-3.9. If required by current regulation,
install an acidity neutraliser.
Apen Group can supply different optional kits to neutralise the
condensate.
The kits differ according to their capacity, as shown below, and
are made up of:
•
plastic tray for the collection of condensate (measuring
BxHxL 30x18x20cm);
•
calcium carbonate bag.
IT IS possible to convey the condensate deriving from several
heaters into a single neutralisation kit, adding the power values
together, according to the maximum limit of the kit itself, as follows:
•
G14304
120 kW max
•
G05750
1500 kW max
