Carel ir33+ FMC, Quick Manual

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15
ENG
ir33+ wide Fullmotion - +040000055 - rel. 1.0 - 09.06.2014
Cod. Parameter Status
c1 Minimum time between successive starts of the second compressor
NOTE: only active for AUX if H1 =12
Standard
c2 Minimum second compressor OFF time
NOTE: only active for AUX if H1 =12
Standard
c3 Minimum second compressor ON time
NOTE: only active for AUX if H1 =12
Standard
c11 Second compressor start delay if H1 = 7 no temp. control of AUX compressor
Standard
Tab. 3.j
3.12 Pump down
The pump down function can be activated when the parameter
H1 = 5
and
c7 ≥ 7
.
The AUX relay is then dedicated to the pump down valve.
Digital input DI1 has to be configured as a low pressure switch
A4 = 8 or pump down will be performed by
time if
c10 = 1
.
To start with pump down, control of the Fullmotion compressor needs to stop, then pump down starts. An
immediate pump down can be performed by setting
cct = 0 .
If c10 = 1 and no pressure switch is configured (A4 = 8) the pump down lasts for the time c7 .
The compressor start can be delayed by the time c8 .
Cod. Parameter UOM Dis. Type Def. Max Min
c7 Maximum pump down time (PD)
0 = Pump down disabled
Sec C I 0 900 0
c8 Compressor start delay after opening PD valve
Sec C I 5 60 0
c9 Autostart in pump down
0 = Disabled
1 = Pump down whenever closing pump down valve &
following low pressure switch activation with no cooling
demand
- C 1 1 0
c10 Pump down by time or pressure
0 = pressure
1 = time - C D 0 1 0
A4 Digital input 1 configuration (DI1)
8 = low pressure switch
min C 0 1 0
H1 Configure function of output AUX1
5 = pump down valve
7 = delayed compressor (see c11)
11 = reverse with neutral zone
12 = second compressor
13 = no function
14 = drain heater management
- C I 14 14 0
Tab. 3.k
3.13 OFF from keypad
Pressing the ON/OFF button for more than 3 seconds switches the controller ON/OFF.
If speed control is running, the Fullmotion compressor is forced to run at the minimum speed set by
cmf for
a fixed time of 30 sec.
If the controller is configured for pump down, the controller activates pump down management.