Olmo OSH-T18HRK3 Owner's Manual page 18

Power cord is to be selected according to national regulations.
Outdoor unit power cord should be selected and connected according to the outdoor unit
installation manual.
Wiring should be away from high temperature components, or the insulation layer of the
wires may melt down.
Use wire clamp to fix the wires and terminal block after connection.
Control wire should be wrapped together with heat insulated refrigerant pipes.
Connect the indoor unit to power only after the refrigerant has been vacuumed.
Don t connect the power wire to the signal wire connection end.
Panel Wiring
Connect the Swing Motor terminal block according to cassette indoor unit wiring diagram.
Terminal Board Diagram
Please refer to cassette indoor unit wiring for the wiring.
Steps of external wiring connection
1. Remove air intake grille and electric box cover of indoor unit.
2. Remove access door of outdoor unit.
3. Connect the power supply connecting cable, the control connecting cable and defrost
connecting cable between indoor and outdoor unit. (The defrost connecting cable is
not applicable for heat pump models. ) Please refer to the following pages for details.
4. Make sure the cables being fixed well with an effective anchorage after connecting.
5. Grounding work must be carried out for indoor and outdoor units.
6. Install the components removed back to the unit.
CAUTION
Outdoor unit
Signal connecting wire
17
Electric control box cover
Sensor connecting wire
Power supply wire
Thermal insulation Materials
Connecting pipes