REMEHA Gas 310 ECO Technical Information page 34

12 OPERATING MODE
12.1 Operating mode (x [[)
During normal operation the code-display shows the sta-
tus (position in cycle) of the boiler, with the t -display
indicating the actual flow temperature.
The digits or letters in the code-display have the following
meaning:
Code Description
Standby; there is no heat demand from control system
0
Pre-ventilation (pre-ventilation time 30 seconds, post ventilation time 3 seconds)
1
Ignition
2
The burner is firing (flame detection)
3
n/a
4
Waiting mode; check for sufficient air flow using fan and air pressure differential sensor (LDS)
5
Control stop (burner off + post ventilation) :
6
- flow temperature T1 > setpoint + 5°
- flow temperature T1 > desired setpoint modulating control + 5°
- flow temperature T1 > parameter 1
- difference flow T1 and return T2 > 10° (factory setting); Starting condition is [ 10 °.
End of heating demand, pump run on time. During cycling prevention delay-time the boiler will remain in
7
state 7 and will not react to heat demand.
n/a
8
Shut-off mode (see section 12.4)
b
Forced full load (HIGH)
h
Forced part load (LOW)
l
Gas leakage control
t
c[l Burner cooling
table 12 Operating codes
12.2 Read-out mode (X [[)
Read-out mode is used to display various values. Press
the m key until ! appears in the code window (dot flash-
es). Select the required code using the s key.
Code Description
!
Flow temperature (°)
@
Return temperature (°)
#
Flue gas temperature (°)
%
Heat exchanger temperature (°)
^ Flow temperature (set point, °)
Heat demand status (1
&
pressure differential sensor (LDS, 2
Switch-on temperature for central heating
*
operation (°)
62560.indd 34 62560.indd 34
Read-out range/comments
actual value
actual value
actual value
actual value
Calculated value
digit) and air
st
0x = on/off-contact open
digit)
nd
1x = on/off contact closed
x0 = air pressure differential sensor open
x1 = air pressure differential sensor
closed
demanded value
34
Remeha
Gas 310 ECO
Read-out
(e.g.)
80
70
85
75
84
11
40
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