Carel uChiller UCHBP00000200

21
ENG
µchiller +0300053EN rel. 2.2 - 14.12.2021
Installation
The digital input confi guration parameters can have the following meaning:
Value Master description (circuit 1) Slave description (circuit 2)
0
Not used Not used
1
User pump fl ow switch User pump fl ow switch
2 *
Comp. 1 thermal protector circ. 1 Comp. 1 thermal prot circ. 2
3 *
Comp. 2 thermal protector circ. 1 Comp. 2 thermal prot. circ. 2
4
Remote on/off Remote on/off
5
Cooling/heating Cooling/heating
6
2nd set point 2nd set point
7
Remote alarm Remote alarm
8
User pump 1 thermal protector User pump 1 thermal protector
9
Low pressure switch circ. 1 Low pressure switch circ. 2
10
User pump 2 thermal protector User pump 2 thermal protector
11**
Comp. 1 request circ. 1 Comp. 1 request circ. 2
12**
Comp. 2 request circ. 1 Comp. 2 request circ. 2
Tab. 2.k
(*) In the Legacy model, compressor 1 thermal protector circ.1 and compressor 1 thermal protector circ. 2 are circuit 1 and circuit
2 thermal protector respectively. In the Legacy model, compressor 2 thermal protector circ.1 and compressor 2 thermal protec-
tor circ. 2 are not used.
(**) available only for condensing units
2.12.3 Analogue outputs
Below is the list of parameters used to confi gure the analogue outputs:
Analogue output Master con guration parameter Slave con guration parameter
Y1 HC71 HC81
Y2 HC72 HC82
Tab. 2.l
The analogue input confi guration parameters can have the following meaning:
Value Master description (circuit 1) Slave description (circuit 2)
0 Not used Not used
1 On-off source fan/pump circ. 1 On-off source fan/pump circ. 2
2 Modulating source fan circ. 1 Modulating source fan circ. 2
3 Free cooling Free cooling
Tab. 2.m
2.12.4 Digital outputs
Below is the list of parameters used to confi gure the digital outputs:
Digital input Master con guration parameter Slave con guration parameter
NO1 HC51 HC61
NO2 HC52 HC62
NO3 HC53 HC63
NO4 HC54 HC64
NO5 HC55 HC65
NO6* HC56 HC66
Tab. 2.n
(*) available only on DIN version
The digital output confi guration parameters can have the following meaning:
Value Master description (circuit 1) Slave description (circuit 2)
0
Not used Not used
1
Compressor1 circuit 1 Compressor1 circuit 2
2
Compressor 2 circuit 1 Compressor 2 circuit 2
3
User heater 1 User heater 2
4
User pump 1 / user fan User pump 2
5
Source pump / fan Source pump / fan
6
Frost protection heater evaporator 1 Frost protection heater evaporator 2
7
4-way valve circuit 1 4-way valve circuit 2
8
Oil equalisation valve circuit 1 Oil equalisation valve circuit 2
9
Freecooling valve
10
General alarm
11
User pump 2
12
User heater 2
Tab. 2.o