Evaporator Fan; Continuous Cycle; Neutral Zone & Reverse Mode - Carel ir33+FMC Guía Rápida

During a Pull Down cycle, the defrost request is skipped, but remains pending.
Cod. Parameter
AH High temperature alarm threshold
cPd Maximum compressor pull down time
3.7

Evaporator fan

Evaporator fan management is based on parameters F0/F1/F2/F3, as on the standard controller.
Also with the drain heater management the Fan management is as standard.
During the dripping time dd and the Drain post Heat Fd time the Fan remains OFF.
Cod. Parameter
F0 Evaporator fan Management
F1 Fan activation temperature (only if F0 = 1 or 2)
Evaporator fans with compressor off
F2
0 = see F0; 1 = Always off
F3 Evaporator fans during defrost: 0/1=on/off
dd Dripping time after defrost (fans off )
Post dripping time after defrost (drain heater remains on
Fd
during this time / fans off with control active)
3.8

Continuous cycle

With activation of the continuous cycle the compressor is switched ON (if OFF; otherwise it stays ON). There
will be no active temperature control.
The compressor operates at the speed set by parameter cMf.
The continuous cycle is active until reaching the low alarm threshold (parameter AL) or the time expires
(parameter cc).
3.9 Neutral zone & reverse mode
Configuration of a Fullmotion compressor with Neutral zone and AUX relay as heater in reverse mode.
The AUX relay has to be configured as heater with H1 = 11. The Fullmotion compressor starts working when
St + rn/2 + rd, as described in the following diagram.
To start the AUX heater H1 = 11 the Fullmotion compressor has to be switched OFF and the set point reached.
Please note:
"The compressor powers OFF if T< St and the time cct expires.
If cct set to 0 the compressor switches OFF immediately when the temp. T reaches the set point St."
If cct is set to 255 the compressor never switches OFF and the AUX heater cannot switch ON.
Always keep in consideration the effect that parameters AH and AL have on this control function.
AUX ON
OFF
rr rn/2
St
Fig. 3.e
13
UOM Dis. Type Def.
°C/°F C F
h C C
UOM Dis. Type Def.
- C I
°C/°F C I
- C I
min C A
min. C I
CMP
rn/2 rd
ir33+ wide Fullmotion - +040000055 - rel. 1.0 - 09.06.2014
ENG
Max Min
-14 50.0 -50.0
1 240 0
Tab. 3.f
Max Min
0 2 0
5 200 -50
1 1 0
2 15 0
3 15 0
Tab. 3.g