Step 4-Electrical Wiring - MESTIC RTA-2500 Manual

ELECTRICAL WIRING

STEP 4-ELECTRICAL WIRING

ROUTING 220-240V AC WIRING
WARNING : Make sure that all power supply to the unit is disconnected before performing any work on the unit to avoid
the possibility of shock or injury and/or damage to the equipment. After the interior ceiling assembly frame is properly
secured to the roof top air conditioner, the following electrical connections must be performed.
1. As shown in fig.7, the outdoor unit has two sets of
outgoing wires, which are power cord (high current)
and the control signal wires respectively. The former
one should be directly connected to the power supply
terminal while the latter one should be connected
to the control signal wire of the indoor unit.
2. As shown in fig.8, the indoor unit has one set of
control signal wires, with 4 wiring terminals in total.
4 shown in the picture, use a piece of thermal insulating jacket to enclose the wiring terminals and sponge.
Then glue the thermal insulating jacket and fasten it with cable ties.
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3. As shown in the picture, connect the wiring terminals
of indoor and outdoor units one by one. Then use
a piece of sponge to wrap the wiring terminals
together, with each terminal separately encircled by
the sponge. Avoid gaps between each wire.
NOTE
1. Cable ties must be attached to the area with both sponge and thermal insulating jacket;
2. Before installing the front panel of indoor unit, put the thermal insulating jacket on top of the air duct.
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