AERMEC URHE CF Series, User Manual

Page: 10 / 16

User Manual - URX_CF and URHE_CF -
10
T/2
ON
OFF
ON
OFF
COMPR
RV
T/2
SD
T
COMPR: compressor
RV: inversion valve
SD: start defrosting
fig. 01
T/2
ON
OFF
ON
OFF
COMPR
RV
T/2
FD
T
COMPR: compressor
RV: inversion valve
FD: end defrosting
fig. 02
pressure at the start of defrosting.
• The counting is reset after one of the follow-
ing events: defrosting cycle carried out, power
failure, operating mode change.
Power failure
In case of power failure, when power is
restored, the control returns to the status
prior to the power failure. If defrosting is in
progress, the procedure is cancelled. All tim-
ings are cancelled and initialised again.
MANAGEMENT OF SUMMER/WINTER MODE
CHANGE
The change can take place:
• from digital input (if enabled)
- control on the machine: the icons summer/
winter blink
- remote panel: the icons summer/winter are
fixed
• from keyboard (if the digital input is disa-
bled)
- control on the machine: the icons summer/
winter are fixed
- remote panel: the icons summer/winter
blink when a mode change is performed, they
remain fixed after 10 seconds
• from supervision
DELIVERY/RECOVERY FAN CONTROL
The fans are off only if:
- a fans block alarm is present
- the unit is OFF
SUMMER NIGHT FUNCTION
The function is enabled via parameter or time
bands and it is enabled only if the free cool-
ing conditions are met. The night function
has higher priority compared to the possible
stand-by mode.
In case the above conditions are present:
- the free cooling function is activated with
null equivalent band (full open or closed
dampers)
- if the opening of the damper was requested,
the fans are activated
- all other functions are disabled
The function can be disabled in two ways:
- by time-out if the time bands are disabled;
- by manual mode/function change, OFF, time
bands disabling.
TIME BANDS
Profiles configuration
The operating modes for each profile are defined via
the Prof mask in the prg menu
The profile will be identified as “tE0n x” where n is the
number of the day of the week and x is the set profile.
tE01 Monday profile
tE02 Tuesday profile
tE03 Wednesday profile
tE04 Thursday profile
tE05 Friday profile
tE06 Saturday profile
tE07 Sunday profile
Time bands management
To activate/deactivate the time bands, it is possi-
ble to press for a few seconds the UP arrow key.
The controller on the machine will display the
clock icon while the display of the remote con-
trol panel will show the F1 icon symbol and the
corresponding active profile.
The time bands include 5 profiles (defined via
the Prof mask of the prg menu):
- profiles 1, 2, 3 with four events each
Each EVENT consists of a start time (in the
format HH:MM) and an operating mode (0
= OFF, 1 = ECO, 2= COMFORT, 3 = NIGHT).
- Profile 4: only Comfort
- Profile 5: only Off
From the DayP, the scheduler can be activated
with the parameter tE00. Then each day of the
week can only have one of the 5 possible pro-
files, by setting the parameters tE01….tE07 from
1 to 5 for each day of the week.