Daikin RDT-135c Installation And Maintenance Manual page 34

Mechanical Installation: RPS Factory Split at Fan
Phase III. Reconnect power and control wiring
The DX coil/condenser section contains power and control
harnesses that have their excess length in the blank or heat
section, which normally is immediately downstream of the fan.
Once the sections are physically reconnected, the ends of the
power harness are fed back through the unit base into the
junction box, per the unit's electrical schematics.
Connect the power block correctly and maintain proper
phasing. Improper installation can cause severe equipment
damage.
1 Make electrical connections and reinstall inner raceway
cover as shown in Figure 40.
Figure 40. Electrical connections and raceway cover
installation
If applicable, install as shown
with provided fasteners.
After routing wires,
install inner raceway
cover (see step 6).
2 When power wire reconnection is complete, reinstall the
inner raceway cover in the blank or heat section. Figure 40
shows a typical installation of the raceway cover.
32
CAUTION
3.72 ref.
(94 mm)
Run the control harnesses by removing the external
3
raceway covers on either side of the unit split.
Remove the excess harness length from the external
4
raceway on the DX side of the split; then route along the
raceway through the bushed hole in the fan section and into
the junction box where control wiring terminal blocks are
provided for reconnection.
Make all electrical connections per the unit's electrical
5
schematics.
Reinstall the external raceway covers after routing of the
6
control wires is complete.
7 Draw through cooling coils only. Reconnect refrigerant
piping. These refrigerant circuits for these units are shipped
with a holding charge only. Figure 41 illustrates what the
installer sees at the shipping split
a To bridge the gap and connect the piping, remove the
refrigerant piping caps and add fittings and copper
tubing, as required.
Evacuate and charge the unit. See page 39 for further
b
details.
Figure 41. Refrigerant lines
Capped
refrigerant
lines
IM 738-2