20
code HG0141.00GB ed.A-2008
LRP - RAPID PRO and LK - KONDENSA
LRP and LK WARM AIR HEATER
SmartWEB
Smart EASY
Operation with chronothermostat (OPTIONAL)
The heater operation is entirely automatic and, by using a
chronothermostat, the ambient temperatures can be regulated.
The chronothermostat and the PCB monitor all the control and
regulation functions, whilst the safety functions are performed by
the flame monitoring equipment and by the safety thermostats.
NOTE: To control the room temperature,
the heater must
be connected to a room thermostat (or chronothermostat)
or to an ON/OFF switch.
If a thermostat supplied by third parties is installed, the room
temperature must be programmed on the thermostat.
In this type of installation, we recommend that the remote con-
trols G27700 or G27500 shown below are used so that the user
can check the lockout conditions and, if necessary, remotely
reset the heater.
Operation with SMART series (WEB or EASY) chronother-
mostat (OPTIONAL)
The remote controls of the Smart series (WEB G27700 or
EASY G27500) act as a chronothermostat and can be used to
remotely control and manage all the parameters of the heater.
Through ModBus protocol, they can be used as a monitoring
device for a single zone system at the same temperature, where
up to 32 machines can be installed simultaneously, controlled
by a single control.
The remote controls of the Smart series are equipped with a
colour TFT 4.3" touch screen (480x272 pixel resolution), from
which it is possible to read and adjust all the parameters of the
connected devices, performing the function of supervisor/viewer
and controller (active part of the regulation) able to:
•
display the status of the burners
•
display the percentage of modulation
•
manage alarms and resets
•
manage the units in automatic or manual mode
•
manage the weekly and annual calendar planning
•
manage the scheduling of daily time slots.
To use the Smart series chronothermostat, simply set, on each
heater, the parameter d0 = 7 (ModBus management) with Smart
in PID mode. By setting the parameter D0 = 7, but with Smart
in ON/OFF mode, the heater will always set to minimum. The
address of the modulation boards of the heaters must be set
as shown below.
To activate the heating request, close input ID2 of the heater
modulation PCB (by closing terminals ID2/IDC2, voltage-free dry
contact), and input ID1 of the Smart itself (by closing terminals
ID1/GND, voltage-free dry contact).
The Smart (WEB or EASY) remote controls are supplied with
a voltage of 12 Vdc
+10%/-15%
.
An integrated temperature probe allows the management of the
room temperature of the controlled area; the remote controls
of the Smart series also offer the possibility to connect up to 3
individually programmable remote probes, in addition to the one
integrated on board, as main or additional probes, which allow
obtaining an average room temperature on 4 points.
The remote NTC probes that can be connected must be of 10
KΩ, β 3435 type and connected to NTC/NTC terminals.
NOTE: The remote NTC probes are optional external
probes (code G07202 or G07202); not to be mistaken
with the modulation probe NTC1.
The remote controls of the Smart series allow, through the PID
regulation, calculating in real time a percentage of modulation
of the power needed to reach the desired set-point and sending
it to each heater, obtaining economic savings and ensuring a
greater degree of room comfort.
The WEB version, in addition, allows the complete man-
agement of all the system functions, including unit resets,
directly from a PC connected to the network, without having
to install any additional software, but simply through a
browser interface.
For more information on operation and installation diagrams,
please refer to the manual
HG0060.00 "SMART WEB / SMART
EASY CHRONOTHERMOSTAT. Operating, Installation and
Programming Manual"
.
Analogue and digital inputs
Should it be necessary to remotely connect one or more ana-
logue inputs, through the connection of an external NTC probe,
the relevant cable sections are indicated below according to
the cable length:
Type
Length < 50 m
Length < 100 m
NTC
0.5 mm
2
1 mm
2
ATTENTION: All remote controls must have a maximum
connection length of less than 10 m and up to 500 m in
the case of Smart series chronothermostats.
NOTE: Always keep the cables coming from the analogue
and digital inputs separated (about 5 cm) from the power
load cables to avoid possible electro-magnetic distur-
bances. Never insert power cables and signal cables
into the same cable duct.
