Boiler Output To Indicate High Fire (%); Maximum Output; Forced Part Load And Running Time (& En *); Cycling Prevention Delay-Time (() - REMEHA Gas 210 ECO Technical Information

7.6.2 Boiler output to indicate high fire (%)

Adjustable from 0 to 100%, factory setting 90%.
This value sets the point (in %) which indicates the
boiler is at high fire.
g
Only active when optional Volt free module No. 2
is fitted.

7.6.3 Maximum output (6)

Adjustable from 50 to 100% output, factory setting
100%.
This value sets the maximum output of the boiler.
7.6.4 Forced part load and running time (& en *)
Forced part load, parameter &, adjustable from 10 to
50% input, factory setting 30%.
This value will force the boiler to always start at this per-
centage i.e. 30%.
Forced part load running time, parameter *, adjustable
from 0 - 300 sec., factory setting 20 sec. for the 80 kW
boilers and 10 sec. for the 120 and 160 kW boilers.
This value sets the time the boiler stays on forced start
level i.e. 20 sec.
g
If both values are set to 0 or if the time period
expires the boiler will revert to what ever the system is
demanding.

7.6.5 Cycling prevention delay-time (()

Adjustable from 0 and 300 sec., factory setting 20 sec.
This value sets a minimum off time following a control
stop / end of a heat demand to prevent cycling taking
place. When after this delay time flow temperature lies
less than 5°C above return temperature (check on water
flow), the boiler will restart.
7.6.6 Start and end point for analog signal (a and
B)
Start point (0 Volt): parameter a, adjustable between
-50°C and +50°C, factory setting 0°C.
This value sets the required flow temperature at 0 volt
signal input (restricted by the min IMS setpoint).
End point (10 Volt), parameter B, adjustable between
+51°C and +299°C, factory setting 100°C.
This value sets the required flow temperature at 10 volt
signal input (restricted by the maximum flow tempera-
ture setpoint and the maximum output).
g
These settings are only applicable when param-
eter 41 is chosen for the boiler control operation.
Remeha Gas 210 ECO
100
90
80
70
60
50
40
30
20
10
0
0 1 2
Fig. 06 Temperature control via analog (0-10 Volt)
signal

7.6.7 PWM pump position (C and D)

n/a to UK.

7.6.8 dT from control stop point to start point (E)

Adjustable from 5 to 20°C, factory setting 10°C.
This value sets the flow temperature at which the boiler
will cut back in after a control stop.
The boiler will always go to a control stop when the flow
temperature equals the flow setpoint temperature + 5°C.
Cut back in temperature = flow setpoint (80) + 5 -
parameter E (10), i.e. 80 + 5 - 10 = 75°C.

7.6.9 Maximum flue gas temperature (F)

Adjustable from 80 to 120°C, factory setting 120°C.
This value sets the maximum operating flue gas tem-
perature - for use with PVC flue systems.

7.6.10 High limit temperature setpoint (G)

Adjustable from 90 to 110°C, factory setting 110°C.
This value sets the high limit temperature at which the
boiler will shutdown in a lockout condition requiring
manual intervention.
g
If the factory setting is reduced, a corresponding
reduction in flow setpoint will be required otherwise the
min flow rate may be effected.

7.6.11 Modulation start point dT (H)

Adjustable from 10 to 30°, factory setting 25°.
This value sets the flow/return dT point at which the
control modulation begins. The factory set point should
be correct for most installations.
20
3 4 5 6 7 8
input voltage (V) - DC
9 10