3
Concord ESi 140-380 -
User's
Guide
CAUTION.
To avoid the possibility of injury during the use or cleaning of this
appliance care should be taken when handling edges of sheet steel components.
Ctrl. Position
Approx. Temp.
1.
Boiler flow temperature (CH)
3 to 9
30
0
C to 90
0
C
2.
DHW (boilers fitted with DHW sensor)
1 to 8
10
0
C to 80
0
C
2
CONTROL OF WATER TEMPERATURES
The water temperature may be controlled by the following control settings:
Note.
In DHW mode the boiler flow
temperature will automatically
be controlled by the DHW
temperature limiter.
Settings below positions 4 (CH) and 6 (DHW) are NOT RECOMMENDED.
3
DISPLAY FEATURES
TO LIGHT THE BOILER
Before turning the boiler on, make sure that the installation is
filled with water
.
Carry out the start-up operations in the order indicated below
(Refer to Frame 1 for Identification):
-
Check electrical supply to the boiler is OFF.
-
Open the main gas shut-off valve.
-
Press and release the safety control box (2) reset button.
-
Set the Summer / Winter switch (3) to the "Winter"
position.
-
Press and release the safety thermostat button (4) (under
the cap).
-
Set the pump shutdown switch (6) to .
-
Set the boiler thermostat (7) to the desired setting. Ensure all
system controls are calling for heat.
-
If the boiler provides DHW also, set the DHW thermostat (12)
to the desired setting (6 recommended).
-
Switch on the electricity supply to the boiler.
-
Set the ON/OFF switch (1) to the "ON" position.
-
The ignition burner will light followed by the main burner.
-
If it does not light the red alarm indicator (2) lights up. Press
in and release the reset button (2). The controls will reset
and attempt to light.
Boiler not operating:
-
Check boiler thermostat settings (7 and 12).
-
Check safety thermostat (4), reset.*
-
Check burner alarm (2), reset.*
-
Check circuit breaker (5), reset.*
* Call engineer if repeat malfunction.
MESSAGES - ALARMS
The display may show the following messages in the case of a malfunction:
Notes
Probable Cause
The corresponding
sensor circuit is
interrupted or is short
circuited
If the power supply is interrupted with
an
alarm and no corrective action
is taken then, when the power is
resumed, the boiler will restart but
continue to operate in a C
H mode only
and alarm
will NOT be displayed.
The calorifier is
empty or incorrectly
fitted AD212 kit
connector
The DHW may be reactivated for 24 hours
by disconnecting and reconnecting the
power supply to the boiler.
Check that the connector supplied in
the AD 212 kit (DHW Sensor), which
has a 22k Ohm resistance and a
100nF capacitor fitted, is correctly
connected to terminals 25 and 26.
Component
Failure
Message
Installation stops Boiler
sensor
Remedy
Inform the
installer
Installation
continues to
operate but DHW
no longer heated
DHW
sensor
No DHW
AD212 kit
connector
Fill the calorifier
or check
connector is
properly fitted.
Check that there
is no short circuit
or the
connections are
made correctly
