Carel ir33+ FMC - Second Compressor; Second Compressor Management

14
ON
OFF
St
t
rd/2
VCC
ON
OFF
rd/2
AUX
DIRECT
ENG
ir33+ wide Fullmotion - +040000055 - rel. 1.0 - 09.06.2014
Cod. Parameter Status
rn Neutral zone
Standard
rr Reverse dierential
Standard
H1 Congure 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
Set to 11 for AUX reverse with neutral zone
r3 Operating mode
0 = Direct with defrost control (cooling)
1 = Direct (cooling)
Tab. 3.h
3.10 Second compressor
A second compressor can be congured by setting H1 = 12.
The output controls an ON/OFF compressor using the AUX relay.
Control of the Fullmotion compressor follows the diagram shown below.
The rst compressor is always the Fullmotion compressor.
Cod. Parameter Status
H1 Congure 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
H1 =12
Tab. 3.i
Fig. 3.f
3.11 Second compressor management
The Fullmotion compressor is managed using the dedicated parameters.
If H1 = 12 (AUX = ON/OFF second compressor) then c1 – c3 are dedicated to ON/OFF protection of the second
compressor.
Parameters c1 – c3 do not have any impact on Fullmotion compressor management.