Normal operation
Installation, use and maintenance manual – Next-G
53
6
of the list.
6. Select the parameter of interest by pressing the
key; the display will show the value previously as-
signed to the parameter, either read-only or to be
set; if instead of a value/setting it is a command, a
blinking code is displayed (eg. "rEr1" for the board
error reset command).
7. Press the
key to reconfirm the value; or use
and
keys to modify the value, and press
at
the end to confirm or set the new value; if however,
it is a matter of controlling an appliance operation,
press the
key to perform it.
8. To exit a parameter menu or the menu list and go
back to the higher level, press the
key until dis-
playing the letter "E" for exit, then press the
key
again.
9. The display alternates again between the tempera-
ture values: exchanger, room and flue gas.
10. Close the thermoformed door.
Table 6.1
Menu 3 parameters (for the user)
Parameter Description of parameter
Setting
Measure-
ment unit Default
53
Room temperature setpoint
0,0 ÷ 40,0 °C
°C/10
180
54
Fan speed in summer ventilation mode with standalone
operation
1 ÷ 4
-
4
55
Fan mode in heating mode
0. at discrete speed levels
1. fixed maximum speed
-
0
56
Standalone heating mode
0. at discrete power levels
1. power modulation (PID)
-
1
6.5
MODIFYING SETTINGS
Do not modify complex settings
Specific technical and system knowledge is re-
quired for complex settings. Contact a TAC.
The settings described below apply only when
using the 1- or 2-key basic control or an external
request. In all other cases, please refer to the in-
struction manual of the specific control used.
6.5.1
How to raise/lower the room temperature
setpoint (fixed setpoint)
The room temperature setpoint determines the room
temperature to be achieved by the gas unit heater. The
temperature setting is preset by the TAC at the first
start-up.
To raise/lower the room temperature setpoint,
via the GEN10 board, proceed as follows (see also
Paragraph 6.4
1. Access menu 3 parameter 53 (= room temperature
setpoint) with the
and
keys; set param-
eter 53 to the desired temperature setting, paying
attention to the fact that the value on the display
is expressed in °C/10 (so for example 17 °C corre-
sponds to the value 170).
2. Exit menu 3 by pressing the
key until display-
ing the letter "E" for exit, then press the
key.
3. The display alternates again between the tempera-
ture values: exchanger, room and flue gas.
6.6
RESTARTING A LOCKED-OUT UNIT
6.6.1
Fault signals
In the event of locked-out appliance, an operational code
flashes on the display (first green figure on the left, letter
"u" = warning or "E" = error).
▶
To restart the appliance you must know and perform
the procedure concerning the issue signalled and
identified by the code (Paragraph 8.1
▶
Only act if you are familiar with the issue and with the
procedure (technical expertise and professional quali-
fications might be required).
▶
If you do not know the code, the problem, or the pro-
cedure, or you do not have sufficient skills, and in any
case of doubt, contact the TAC.
The presence of a fault is also reported via connector J61
on the GEN10 board.
Depending on the event taking place on the gas unit heat-
er, the relay output of connector J61 is activated with dif-
ferent levels of intermittence, detailed in Table 6.2
below.
Table 6.2
Activation status of output J61 in the presence of
faults
Fault
Relay status
E812
Flame controller lockout
Closed relay
E801
Limit thermostat trip
Intermittent relay (4 s on, 1 s off)
W/E
802
Flue gas thermostat trip
E809
Flue gas temperature too
low
Intermittent relay (2,5 s on, 2,5 s
off)
Other fault
Intermittent relay (1 s on, 4 s off)
After 72 hours of continuous flashing status, the led becomes fixed.
If an indicator lamp (which is included when using option-
al 1- or 2-key basic controls, see Paragraph 1.7.4
and 1.7.5
p. 22) is connected to this contact, the lamp