IOM SPLIT AHU KIT 8243 8245

8 I Installation and Operating Manual
ENC1 Knob to select outdoor unit model.
Knob selection Condensing unit
0
SYSPLIT OUTDOOR 18 EVO
HP Q (5,3 kW)
1
SYSPLIT OUTDOOR 24 EVO
HP Q (7,1 kW)
2
SYSPLIT OUTDOOR 30 EVO
HP Q (9,0 kW)
Knob selection Condensing unit
3
SYSPLIT OUTDOOR 36 EVO
HP Q (10,5 kW)
4
SYSPLIT OUTDOOR 48 EVO
HP Q (14 kW)
5
SYSPLIT OUTDOOR 60 EVO
HP Q (16 kW)
LED lamps introduction:
RUN LED is lightened when controller is powered on.
HEAT LED is lightened when the unit is operating in heating mode.
COOL LED is lightened when the unit is operating in cooling mode.
DEF LED is lightened when unit is in defrost mode.
7. MALFUNCTION, ERROR CODE AND SOLVING STEPS
7.1 E1 communication error with outdoor unit
Display Code Malfunction or Protection Solving steps
E1 Communication error with outdoor unit Please refer to 5.1
E2 Temperature sensor malfunction Please refer to 5.2
Ed
Outdoor unit temperature sensor mal-
function or outdoor unit protection
Please refer to 5.3
dF Outdoor is defrosting
It‘s normal or refer to outdoor unit
service manual
E1 display
Communication malfunction
between indoor and outdoor units.
Power off then restart the
unit 2 Minutes later.
Check whether there are
any interference such as too many
lamps power tranformers? Or the
signal wire is too long?
Remove interference or add
magnet ring on power wire.
Yes
No
No
Check whether the signal wire
is shield cable or whether the shield
cable is earthing?
Adopt shield cable/
shield cable earthing.