Hitachi airCore 700 Operation Installation Maintenance Manual page 21

(3) Remove the 4 bolts (M6) on the back of the supply air box, carefully pull the Return Air Box away,
taking care not to damage the fan motor wiring (Fig.4.4).
Rec eiver connector
(for float switch and temp, sensors)
(4) Remove the 5 bolts (M6) securing the fan assembly to the heat exchanger compartment. The fan
assembly will be lifted off (Fig.4.5).
Rec eiver connector
(for float switch and temp, sensors)
Rejoin the return air and supply air compartments in the following order.
(5) Carefully place the fan assembly back into the original position.
(6) Fix the fan assembly onto the heat exchanger compartment with 5 bolts (M6).
(7) Carefully replace the Return Air Box, taking care not to damage the fan motor wiring, and fix the
Return Air Box with the 4 bolts (M6).
(8) Reconnect the float switch, temperature sensor. Reconnect fan motor plugs, wrapped and
tightened with insulation tape, and tie fan motor wiring.
< PPIH-5.0UFA1NQ - PPIH-6.5UFA1NQ >
Separate the indoor unit in the following order.
(1) After removing the insulation tapes(store for reuse), unplug the float switch and temperature sensor
connector, fan motor connectors from the Return Air Box as below; Unfasten fan motor wiring (Fig.4.6).
Fig.4.4
Fig.4.5
Reactor harness wire
E-BOX Assembly
Unplug fan motor connector
from rear of E-BOX
Unplug this connector
(float switch and temp.sensors)
Fig.4.6
-8-
4. Indoor Unit Installation
Heat Exchanger Compartment
Heat Exchanger Compartment
Fan assembly
Return Air Box