3
MQH 11/08
1.2
GENERAL SPECIFICATIONS
• The control box is in compliance with European cur-
rent standard about emissions and immunity (e.m.c ).
• The miniCAC control board mounted in a IP20 plastic
case. The plastic is in compliance with UL94V0.
• Flash memory is used to store the program, enable re-
download via 10 bit A/D converter in factory and at
site.
• During power failure with a duration more then 40
msec, the control goes off and will random restart after
power comes back according the dip 5 position.
1.3
COMPATIBILITY WITH OTHER PRODUCTS AND SYSTEMS
1.3.1 ELECTRICAL INTERFACES
Analogue Input
N°
Type
B1
NTC
B2
NTC
B3
NTC
B4
NTC/ratio
B5
NTC/ratio
Digital output
N°
Chiller
Type of relay
Type
(AC motor rating)
1C-O
Compressor
2A @ 230Vac
N.A
2C-O
Fan high speed or 2nd comp
4A @ 230Vac
N.A
3C-O
Fans motor or low speed
See note 1
TRIAC
(see note 1)
4C-O
Antifreeze heater
2A @ 230Vac
N.A
5C-O
Reversing valve
2A @ 230Vac
N.A
6C-O
Pump
4A @ 230Vac
N.A
7C-O
Unit alarm relay
2A @ 230Vac
N.A
Digital Input
N°
Chiller
ID1
Remote Unit Start/Stop
ID2
Cooling/Heating mode selection
ID3
Fan motor overload
(or 2nd compressor protection)
ID4
Compressor motor protection
ID5
Flow switch - Water diff. pressure switch
ID6
Low pressure switch
ID7
High pressure switch
ID8
Night Mode/Second setpoint
