Belimo EXT-CF230-D202-AF - Operational Modes and Wiring; Maintenance Mode Operations; Wiring Diagrams

LCD Electronic Thermostat
EXT-CF230-D202-AF, EXT-CF230-D402-AF
Maintenance mode
When the unit in “OFF” status, press “  ” for 5 seconds to enter maintenance mode.
Press “” to change over from “ disp > 0set > defr > usp > lsp ”. If button is not
pressed over 10 seconds, it will return to normal mode automatically.
disp
Display selection - ambient temperature ( rt ) / setpoint ( sp )
In maintenance mode “ disp ”, press “  ,  ” to select “ rt ” or “ sp ”.
“ rt ” : display ambient temperature (factory setting)
“ sp ” : display setpoint
0set
Temperature offset adjustment
In maintenance mode “ 0set ”, press “  ,  ” to adjust ambient
temperature reading.
-3, -2, -1, 0 , 1, 2, 3. (factory setting “0”)
defr
Defrost - low temperature protection
In maintenance mode “ defr ”, press “  ,  ” to adjust.
“0n” = ON
“0ff” = OFF (factory setting)
usp
Upper set point adjustment (factory setting 35°C)
In maintenance mode “ usp ”, press “  ,  ” to adjust max. temperature
set point.
lsp
Lower set point adjustment (factory setting 35°C)
In maintenance mode “ lsp ”, press “  ,  ” to adjust min. temperature
set point.
Wiring Diagrams
do not open
To be opened by accredited servicing agents only Electronic control - Type 2.B
action (micro-disconnection operation). Separate collection for electrical and
electronic equipment.
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O56002 - 04/12 - Subject to change. © Belimo Aircontrols (USA), Inc.
230 VAC
5 A fuse
EXT-CF230-D202-AF
On-Off Control - 2 Wires
230 VAC
5 A fuse
EXT-CF230-D202-AF
comm
On-Off Control - 3 Wires
230 VAC
5 A fuse
EXT-CF230-D202-AF
On-Off Control - 2 Wires
Auto Change-Over