RG66000889-REV.OO 36
9 Technical specifications
Single compressor board
Power source: 24Vac +10% -15% at 50/60Hz, protected with a fuse located on the board (250Vac, 2A delayed).
Number of cards Min. power supply required
1 compressor 17VA
1+2 compr.s 25VA
1 compr. + terminal 19VA
1+2 compr.s + terminal 27VA
1 compr. +2 terminals 22VA
1+2 compr.s +2 terminals 30VA
Analog inputs
• no.3 (B1/B2 and B3) selectable to accept either Carel NTC probes (range-40°C/+90°C) or ON/OFF contacts
• no.2 (B4 and B5) selectable to accept either Carel NTC probes or 4÷20mA pressure transducers.
Digital inputs
• no.7 (on single compressor board) + no.4 (on expansion board) optoinsulated at 24Vac, with "Normally Close" logic
(alarm detected when input found open). The power supply must be different from the one of the controller to get a real
optoinsulation.
Analog outputs
• no.1 (on single compressor board) + no.1 (on expansion board) for managing the fan speed board; pulse width
modulation signal (PWM).
Digital outputs
• no.5 (on single compressor board) + no.3 (on expansion board); no.3 of them (reversing valve circuit 1 and 2 and alarm
relay) with double terminal, the others with "Normally Open" logic.
• Switching power: 10 A res. at 250V (AC3 class, with cos ϕ = 0.7 maximum load of 1/3 HP)
Technical specifications
Working temperature: -10T65°C
Storage temperature: -20T70°C
Working humidity: 90%rH (not condensing)
Storage humidity: like operating humidity
Limits of surface temp.: like operating temperature
Mounting:
in electrical panel with metallic mounting hardware connected to earth (minimum distance from any
surrounding element=10mm)
Protection index: PCB (installator’s care)
Environmental pollution: normal
Terminal for panel mounting
Technical specifications
Power supply: from the single compressor main board
Connections: via 8-way telephone cable
Maximum distance: 3m from the single compressor main board
Working temperature: -10÷65°C
Storage temperature: -20÷70°C
Working humidity: 90%rH (not condensing)
Storage humidity: like operating humidity
Limits of surface temp.: like operating temperature
Max number: 2
Mounting: panel-mounted through plastic clips supplied with the unit
Protection index: IP55
Environmental pollution: normal
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