9
INSTALL ALL POWER AND INTERCONNECTING
WIRING TO OUTDOOR UNITS
1. Mount outdoor power disconnect.
2. Run power wiring from main box to disconnect per NEC
and local codes.
3. Remove field wiring cover from unit by loosening screws.
4. Remove caps on conduit panel.
5. Connect conduit to conduit panel (see Fig.10).
6. Properly connect both power supply and control lines to
terminal block per the connection diagram for the
appropriate unit capacity and voltage.
7. Ground unit in accordance with NEC and local electrical
codes.
8. Use lock nuts to secure conduit.
9. Reinstall field wiring cover.
CAUTION
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
S Be sure to comply with local codes while running wire
from indoor unit to outdoor unit.
S Every wire must be connected firmly. Loose wiring may
cause terminal to overheat or result in unit malfunction.
A fire hazard may also exist. Therefore, be sure all wiring
is tightly connected.
S No wire should be allowed to touch refrigerant tubing,
compressor or any moving parts.
S Disconnecting means must be provided and shall be
located within sight and readily accessible from the air
conditioner.
S Connecting cable with conduit shall be routed through
hole in the conduit panel.
Over 1.57" (40mm)
Terminal Block
Conduit panel
Conduit
Outdoor unit
A07455
Fig. 10 - Field Wiring
DRAIN CONNECTIONS
Install drains must meet local sanitation codes.
Install the outdoor unit drain joint
Fit the seal into the drain joint, then insert the drain joint into the
base pan hole of the outdoor unit. Rotate 90
_ to securely assemble
them. Connect the drain joint with an extension drain hose to avoid
condensate from draining off the outdoor unit during heating
mode.
Seal
Base pan hole
Drain joint
Seal
Base pan
Drain
joint
Fig. 11 - Drain Joint
Images are for illustration purposes only.
CAUTION
!
In cold climates, ensure the drain hose is as vertical as
possible to ensure swift water drainage.
If water drains too slowly, it can freeze in the hose and flood
the unit.
NOTE: Basepan built−in with multiple holes for proper draining
during defrost. For applications where it is required to seal these
holes, and re−direct the condensate drain, rubber plugs are
available through RCD.
Table 8—Base Pan Base Rubber Plugs
Outdoor Unit Model
Number
Base Pan Base Rubber
Plugs RCD Part Number
Quantity per
Unit
38MAQB09R--1
38MAQB12R--1
38MAQB09R--3
38MAQB12R--3
12600801A00077 13
38MAQB18R--3 12600801A00077 25
38MAQB24R--3
38MAQB30R--3
38MAQB36R--3
12600801A00117 5
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