meitav-tec MTSC - Page 14

3. Wiring configuration and DIP Switches – AC systems
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AO1
AO2
HC21
3 Speeds fan
Fan medium
Fan high
Fan low
Heat element 2
Compressor 1
Heat element 1
(see SW1.4 HC)
X
X
SW1
SW2
87654321
654321
HP22
Fan VFS
Compressor 2
Compressor 1
Heat pump
(see SW1.4 HP)
X
Fan VFS
87654321
654321
HP21
Fan VFS
Heat element
Compressor
Heat pump
(see SW1.4 HP)
X
Fan VFS
87654321
654321
HC21
Fan VFS
Heat element 2
Compressor 1
Heat element 1
(see SW1.4 HC)
X
Fan VFS
87654321
654321
SW1.8 = Protocol: ON – BACnet, OFF – MODBUS
SW1.4 = HP: ON – Heat pump active in cool, OFF – Heat pump active in heat
HC: ON – Electrical heater, OFF – Oil/Gas heater (no fan)
SW1.5 = ON: Disable compressor delay, OFF – Enable compressor delay
S2.3 – S2.6 – Not in use
HP - Heat pump system HC - Non heat pump system ## - Heating/Cooling stages
Fan medium
Fan high
Fan low
Fan medium
Fan high
Fan low
Fan medium
Fan high
Fan low
Fan on/off: 24/110/230VAC, 3A max.
Fan VFS: 0-10VDC. 5mA Not isolated
Control - Heat elements, Heat pump, Compressors: 24/110/230VAC, 0.3A max.