ACV International
5
2
DESCRIPTION OF APPLIANCE
2.1
General
The ACV Kombi Kompakt HRE wall mounted, gas fired boiler is a closed appliance.
The appliance is intended to deliver heat to the water in a CH system and the DHW
installation.
The air supply and combustion gas flue can be connected to the appliance by means
of two separate pipes. A concentric connection can be supplied if requested. The
appliance has been inspected in combination with the ACV “combi duct”, but it can
also be connected to combi ducts that comply with the universal requirements for
combi ducts and which carry a ‘Gaskeur’(Dutch gas certification).
Depending on preference, the appliance may be connected to a mounting bracket, a
frame with top connection and various connection sets. These are supplied separately.
The ACV Kombi Kompakt HRE wall mounted gas fired boilers carry the CE label, IP
44 rating and the ‘Gaskeur’ (Dutch gas certification) labels HR & SV.
The appliance is supplied as standard for natural gas (G20). On request a conversion
set for propane (G31) can be delivered.
2.2
Operation
The ACV Kombi Kompakt HRE wall mounted, gas fired boiler is a modulating high
efficiency boiler. This means that the power is adjusted in line with the desired heat
requirement.
The aluminium heat exchanger comprises a copper circuit.
By using a devider valve and a sensor the ACV Kompakt Solo can be connected to
an external DHW tank. The internal boiler controller regulates the DHW demand and
assures that DHW supply takes priority over the heating.
The appliance has been provided with an electronic burner controller that controls the
fan with the heat demand from either heating system or external DHW tank, opens the
gas valve, ignites the burner and continuously monitors the flame and controls it
dependent on the power required.
.
2.3
Operating modes
A code on the service display of the operating panel indicates the appliance’s
operating mode.
-
Off
The appliance is out of operation but is supplied with electrical power. No response
occurs to calls for DHW or CH. The appliance frost protection is active. This means
that the pump operates and the exchanger is heated up if the temperature of the water
present in it falls too far.
If the frost protection is actuated, code
7
is displayed (heating exchanger).
In this operating mode the pressure in the CH installation (in Bar) can also be read on
the temperature display.
Waiting mode
The LED at the button is lit and possibly one of the LEDs for the DHW comfort
function. The appliance is ready to respond to a request for CH of DHW.
0
Running on of CH
After the end of CH operation the pump continues to run. The running on time is
factory set at he value in accordance with section 7.3 , page:36. This setting can be
changed.
In addition, the pump runs automatically for 10 seconds once every 24 hours in order
to prevent seizing. This automatic switching on of the pump occurs at het time of the
last call for heat. To change the time, the room thermostat setting should be increased
briefly at the desired time.
