Temperature Control; Low Water Level Protection (Flow And Content); High Limit Protection; Control Unit - REMEHA 610 ECO Technical Information

X12 X7
1
20
X05
fig. 14 Control unit per module
00.31H.79.00009
The boiler fuse F is located behind / next to the 230V
a
terminal strip. This fuse de-energises the whole boiler
module and has a rating of 10 AT.
The fan has Power Factor Control (PFC ensures that
the mains supply is distributed more uniformly) and is
fused with a 6.3 AT fuse F
terminal strip).
fig. 15 Position Fuses F
a
X8
1 1
10 4
1
X04 X02 X10
(behind / next to the 230V
b
and F
b
X14
ONTSTEKING /
IGNITION /
ALLUMAGE /
ZÜNDUNG
2AT 1AT 1AT
2AT
F10 F11 F12 F13
9 1
X03-1

8.2.5 Temperature control

The Remeha Gas 610 ECO is equipped with electronic
temperature control based on flow, return, boiler block
and flue gas temperature sensors. The flow temperature
is adjustable between 20 and 90°.

8.2.6 Low water level protection (flow and content)

The Remeha Gas 610 ECO is equipped with low water
protection based on temperature differences (dT)
between flow and return. When the dT = 25° (factory
setting) the boiler module starts modulating down so
that it remains operational as long as possible. When
the dT = 40° the boiler module will be at part load. If
the dT continues to rise and reaches 45°, the boiler
module shuts down (not a boiler failure, see section
12.4) and will restart when conditions return to normal.
If the boiler is fired dry, it will go to high temperature lock
out, failure code (&.

8.2.7 High limit protection

The high limit temperature protection device switches
off and locks out the boiler module (showing a flashing
fault code, see section 14.4 for details) when the flow
temperature exceeds the high limit set point (adjustable
parameter, see section 13.2.10). When the fault is cor-
rected, the boiler module can be restarted by using the
reset-key on the control panel.
23
F03
2AT
1AT 2AT 2AF
F14 F02 F01
17 1 13 1
X03-2 X01
5