Control Strategy C; Shut-Off (B Xx); Shut-Off; Shut-Off Mode - REMEHA Gas 310 ECO Technical Information

Switch-on temperature for central heating
*
operation (°)
Requested (and permitted by boiler con-
(
trol) output (%) is displayed, irrespective of
boiler control setting.
A
Calculated output (%)
B
Analog input voltage (volts)
C
Control strategy (see section 12.3)
D
Current water pressure
E
N/a
F
Fan speed
Ionisation level
G
H
Unique boiler code
pressure difference over air pressure dif-
I
ferential sensor
table 12 Read-out mode user level
* The displayed value has 4 digits. The display alter-
nately flashes from F 40 to . 00 with code indi-
cating the value being read. In this example: fan speed
4000 r.p.m.

12.3 Control strategy c

During normal operation, the boiler control can operate
according to a specific strategy. Most control strategies
are meant to keep the boiler burning for as long as pos-
sible, regardless of changes in flow or flow problems,
etc.
The control strategies can be viewed in read-out mode
with code c.
1 = modulate up (control below ionisation limit)
2 = modulate down (maximum temperature difference
between flow and return)
3 = minimum output (return temperature higher than
flow temperature)
4 = modulate down (flue gas temperature too high)
5 = pump/ boiler on (frost protection)
6 = zero-flow protection 2 (minimum output)
7 = zero-flow protection 1 (modulate down)
8 = boiler block temperature too high (control stop)
Supplied By www.heating spares.co Tel. 0161 620 6677
Remeha Gas 310 ECO
demanded value
00 - )0 (=100%)
demanded value
10 - )0 (=100) (actual value)
00 - )0 (=100) ((actual value)
01 - 06
00 - 60(÷ 10 for bar), with hydraulic
pressure sensor only (optional);
with sensor not connected: 00
06 - 60
00 - 99(x 0.1 uA)
10 - 98
00 - 80 (x 0,1 mbar)

12.4 Shut-off (b xx)

12.4.1 Shut-off

During shut-off, the code window displays b and the
t window indicates the shut-off code.
g
Important!!
ating function and does not represent a boiler failure.
However, this may indicate a system problem or an
incorrect parameter setting.

12.4.2 Shut-off mode

In shut-off mode last shut-off and corresponding operat-
ing codes can be reviewed. With PC (version Recom
PC and higher) or PDA the last six shut-off's can be
reviewed.
During this particular mode both dots in the t window
flash.
The last shut-off and corresponding operating codes
and applicable temperatures are stored in the micro-
processor memory and can be read out in shut-off mode
as follows:
- Enter the service code c 12 (see section 13.2).
- Press the m key until b appears in the code window
(flashing digit with flashing dot).
Select the required step with the s key.
38
40
90
87
45
02
15(=1.5
bar)
40
00(=4000*)
03
13
Shut-off is a normal boiler oper-