20
PELLET-BURNING BOILER ECOMPACT 150-190-250-290
EN -
Rev 1.1
Connection to the room thermostat
On the left-hand technical compartment of the appliance there is a bridged terminal which is used to connect the room
thermostat that will command the operation. The operation of the room thermostat is enabled with system types 1, 2 and
3
(see
“System configuration”
)
.
OPERATING PRINCIPLE
Open contact:
- The appliance switches directly to economy mode operation “T-AMB ECONOMY”
thus minimising its operating power.
- The heating circulating pump of the appliance switches off.
- The temperature in the boiler increases due to thermal inertia until it reaches the
temperature set with “SET H2O” and displays “T-H2O ECONOMY” on its monitor.
- The appliance now switches itself off automatically if at least one of the following
conditions occurs:
-
If it remains in Economy mode Operation
“T
-
H2O ECONOMY”
for a time set
on Pr44
(20 minutes as default setting)
.
-
If it exceeds the temperature differential set on Pr43
(set as default at 5°C),
in other words if Temperature H2O > (
“SET H2O”
+ Pr43).
- The appliance will switch on again automatically if both of the following conditions
occur:
-
The contact of the room thermostat closes.
-
If it goes below the temperature differential of the “SET H2O”.
If the above condition occurs during the switch-off cycle, please wait until the cycle is complete.
N.B.: If the water temperature exceeds the set threshold of 80°C (safety temperature), the circulating pump of the
system is forcedly switched-on to ensure the disposal of excessive heat, thus avoiding high water temperatures in the
boiler. For this reason it is recommended that the heating system is not entirely closed.
In the configuration “System type 3”, the appliance switches to economy mode and then switches off only if the
“SET
BOILER”
temperature setting has been reached.
ATTENTION: In the event that the room sensor in the
“Remote control”
for the appliance is enabled, the appliance
switches to economy mode if the
“SET ROOM”
temperature setting has also been reached.
HYDRAULIC CONNECTION
The plumbing connections must be made in a rational way using the connections on the template of the appliance. To
facilitate connection of the pipes, all plumbing attachments have been fitted to the upper part of the appliance.
The appliance can be coupled with any other boiler already installed on the system. In this case it is essential to fit all the
necessary safety devices and shut-off valves based on the system and intended use. It is also necessary to consider all
laws and national, regional, provincial and municipal regulations of the country where the appliance is installed.
The appliance can be installed with the expansion vessel closed because it is equipped with a device for stopping fuel
loading, a safety manual reset thermostat and an audible alarm, which are activated if the temperature becomes too
high.
You can install the appliance in the same room as another boiler only if this has a sealed chamber; installation
must be performed in compliance with the current regulations.
When installing the appliance, it is advisable to fit an anti-condensation mixer valve between the delivery and
ret
urn pipes on the appliance’s heating system. The anti
-condensation valve should be calibrated to 55°C with a
Kv value equal to or greater than 8 m
3
/h.
