Pump Down; Off From Keypad - Carel ir33+FMC Guía Rápida

Cod. Parameter
c1 Minimum time between successive starts of the second compressor
NOTE: only active for AUX if H1 =12
c2 Minimum second compressor OFF time
NOTE: only active for AUX if H1 =12
c3 Minimum second compressor ON time
NOTE: only active for AUX if H1 =12
c11 Second compressor start delay if H1 = 7 no temp. control of AUX compressor

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
c7 Maximum pump down time (PD)
0 = Pump down disabled
c8 Compressor start delay after opening PD valve
c9 Autostart in pump down
0 = Disabled
1 = Pump down whenever closing pump down valve &
following low pressure switch activation with no cooling
demand
c10 Pump down by time or pressure
0 = pressure
1 = time
A4 Digital input 1 configuration (DI1)
8 = low pressure switch
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

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.
UOM Dis.
Sec C
Sec C
- C
- C
min C
- C
15
ir33+ wide Fullmotion - +040000055 - rel. 1.0 - 09.06.2014
ENG
Status
Standard
Standard
Standard
Standard
Tab. 3.j
Type Def. Max Min
I 0 900 0
I 5 60 0
1 1 0
D 0 1 0
0 1 0
I 14 14 0
Tab. 3.k