Regin Corrigo C Series, User Manual, Page: 28 / 56

29
Manual C
ORRIGO
C-
SERIES
2000.09
F. FROST PROTECTION
0. Not active
1. Y1 Y1 is forced open on frost risk
2. Y2 Y2 is forced open on frost risk
3. Y1 Aut Reset Y1 is forced open on frost risk. Automatic reset.
4. Y2 Aut Reset Y2 is forced open on frost risk. Automatic reset.
The alarm limit for the frost protection sentinel is set under ”Settings”. (Factory
setting is 7°C.) The system begins to override the output signal to the valve
when the temperature is 5K higher than the alarm limit. This means that the
temperature when the output begins to be affected is 12°C for the factory setting
of 7°C.
G. SHUTDOWN MODE
Controls the heating valve to maintain a preset temperature at the frost
protection sensor when the system is shut down.
The function is only activated if the circulation pump output DO3 is active.
0. No
1. Yes
H. PUMP STOP
The circulation pump is stopped when there is no heating demand and the
outdoor temperature is above a preset temperature. The basic setting is +6°C.
Activation delayed 15 minutes. Can be set under ”Settings”.
Stopped pump is exercised 5 minutes a day at 12 noon.
This function requires an outdoor temperature sensor.
0. No
1. Yes
I. EFFICIENCY MONITORING Not available for C30 and C40
Heat exchanger efficiency is calculated and presented under AI analogue in, on
the last line.
The function requires an outdoor sensor on AI5, an extract-air sensor on AI4
and, either an exhaust-air sensor on AI3, or a room sensor on AI7. So, if the
C
ORRIGO
has been configured for an application with room sensor it is not
necessary to install an exhaust-air sensor. C
ORRIGO
will automatically choose the
room temperature sensor if an exhaust-air sensor has not been installed.
At efficiency values <50% and full output on Y2 the alarm ”low efficiency” is
activated.
0. No
1. Yes
Frostprotection á
1 Y1 â
Shutdown mode á
0 No â
Pump stop
á
0 No
â
Extract air
temp
Exhaust air
temp
Outdoor temp
Efficiency mon. á
0 No â
This function can not be
combined with liquid
connected heat
exchanger
T
Exhaust
- T
Extract
η=
T
Exhaus t
- T
Outdoor