Trane Variable Refrigerant Flow System Mini Outdoor Unit Series Manual de instalación descargar pdf (Pagina 37)

VRF-SVN33A-EN 37

Control System

The control board contains a 7-segment display, three DIP switches, two rotary switches, and four

buttons, as shown in Figure 22. Their functions are explained in this section.

Figure 22. Control board

System Monitoring

The 7-segment display indicates system power and communication status.

WARNING

Hazardous Voltage!

Before making contact with the inverter circuit board, wait for at least 15 minutes after

powering down the mini outdoor unit to allow the unit to fully discharge high DC voltage.

Failure to allow the high DC voltage to discharge completely could result in death or serious

injury.

K1 K2 K3 K4

SW01 SW02

7-segment display

K5 K6 K7 K8 K9 K10 K11 K12 K13 K14 K15 K16

Tens Digit Ones Digit

Table 17. 7-segment display

Event Digit 1 Digit 2 Digit 3 Digit 4

Power up

(a)

“8”“8”“8”“8”

Establishing

communication between

outdoor and indoor units

“A” “d” Number of connected indoor units

Transmit/receive 

(normal operation)

Indoor unit: “A” Indoor unit: “0” Unit address (decimal number)

(a) 7-segment display example showing power-up is shown in Figure 22.

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 51 52

Sin comentarios

Trane Variable Refrigerant Flow System Mini Outdoor Unit Series Manual de instalación Pagina 37