ENG - Manual of installation, use and maintenance.
210-0352_libretto_WHC_ATI_eng.docx
9
Jan-19
10.
FUNCTIONAL AND STRUCTURAL DESCRIPTION
The purpose of this appliance is to allow the heat exchange between the combustion products of the premix burner and the
water stored in the tank through a heat exchanger that is in contact with the burner.
The combustion is completely sealed with respect to the place where the appliance is installed, taking in the air required for
combustion from the outside and discharging the combustion products always outside.
The sealed combustion chamber is placed in the front part of the appliance, inside the casing.
A siphon, which grants the condensate drain, is placed at the bottom of the appliance.
TANK
It is built with a sturdy sheet and grants a remarkable resistance to pressure. It is also subject to an internal glass lining
treatment. A Ø120 flange allows the inspection and cleaning of its internal surface.
HEATING BOILER
It is placed in the front part of the appliance and is composed of: burner, heat exchanger, gas valve, premix fan. The chamber is
airtight with respect to the place where the appliance is located.
3-WAY VALVE
It is used to allow an accurate maintenance of the internal heat exchanger.
WATER PUMP AND FLOWMETER
They are located under the boiler. The water pump collects the water from the tank and pushes it vertically towards the heat
exchanger. The flowmeter senses the flow rate values and transmits them to the control board.
FLUE KITS
(it is compulsory to install the kit provided by the appliance manufacturer)
To be chosen amongst those available, according to the installation requirements. It allows the connection of the combustion
chamber with the outside, bringing the combustion air to the burner and discharging flues.
MAGNESIUM ANODE
The appliance is factory equipped with two magnesium anodes in order to protect the device from galvanic currents that can
corrode the interior surface of the appliance. One anode is installed on the inspection flange, the other one is located in the
upper part of the appliance.
A.
AIR IN & OUT
B.
CONTROL BOX CASING
C.
CONTROL PANEL DISPLAY
D.
HEATING BOILER
E.
3-WAY VALVE
F.
FLOWMETER
G.
WATER PUMP
H.
BASEMENT
–
HANDLING POINT
I.
LOWER PROBE
J.
INSPECTION FLANGE WITH ANODE
K.
CONDENSATE DRAIN
L.
MIDDLE PROBE
M.
STORAGE TANK
N.
UPPER ANODE
O.
BALL VALVE
