7.4 Mode of operation of the relay and transistor outputs
The table shows operation of the outputs for the separate controller types.
Relay outputs
230 V AC
Transistor outputs
24 V DC/50 mA (91/92)
Controller
Type
Fan Defrosting Static
cooling
Cooling Alarm* Light
(81/82)
Frame/
pane heater**
Switching on
and off
of external
consumers
Case controller
UA 121 E Inverted Positive Positive Positive Inverted Positive Inverted –
UA 131 E Inverted Positive Positive Positive Inverted Positive Inverted –
UA 131 E LS Inverted Positive Positive Positive Inverted Positive Inverted –
UA 141 E – Positive – Positive Inverted Positive Positive (Relais
73/74)
Positive (91/92)
Room controller
UR 141 NE Positive Positive – Positive Inverted Positive Inverted –
UR 141 TE Positive Positive – Positive Inverted Positive Inverted –
Sub cooler only UA 410 E AC
UK 100 E Positive Positive Positive Positive Inverted Positive – –
Cascade controller only UA 410 E AC
KR 160 E Positive Positive Positive Positive Inverted Positive – –
*OnlyUA400ECC/UA410EAC