- 55 -
COMMISSIONING
9 - COMMISSIONING
- Activate the boiler’s external electrical circuit-
breaker,
- Press button (14) to ON "
I
" (depending on the
models).
• The following references will appear one after
the other on the boiler control panel display
(13),
For this example, this means that it is the ver-
sion 2.08 of the LMU management unit and
version 1.03 of the control interface.
When starting up the boiler, the LMU management
unit recognises all the accessories connected (sen-
sors, mixing valve, pumps, etc.) and automatically
checks the values and settings according to the type
of installation.
If a problem occurs, the LED “alarm signal” (11) is
on (red):
• Press RESET (10) to reset the boiler,
• If the alarm persists, consult the list of opera-
ting faults in Chapter IX - OPERATING
FAULTS - page 63.
O
I
13
14
j
bar
Info
°C
Reset
10
11
13
THI-
81-
0
Fig. 59
Display
Description
Consequences according to type of installation
“Function” key (1) gives access to 3 operating
modes by pressing:
- auto mode: LED (4) on
- winter mode: LED (5) on
- summer mode: LED (4) and (5) off
LED (5) on / LED (4) off:
Winter mode
The boiler provides heating and domestic hot
water
- Basic boiler model (without outside sensor and room
sensor)
• Auto mode is inaccessible
. The heating and hot water temperatures are set
manually by using the boiler potentiometers.
- Boiler with outside sensor only
• Auto mode is not activated,
. Heating operates continually except if there is a
request for hot water,
. The hot water temperature is set manually on the
boiler potentiometer.
- Boiler with outside sensor and room sensor
• The heating and hot water temperatures are set via
the room sensor QAA73.
auto
Function
FUN-01-0
4
1
5
auto
Function
FUN-02-0
Summary of Contents for THI 5-25c
Page 62: ... 77 NOMENCLATURE THI 5 25 C ...
Page 65: ... 98 NOMENCLATURE CONTROL BOX ...
