TERRA INDOOR UNIT INSTALLATION
Terra Unit Mounting Bracket Diagrams (inches)
9K and 12K Unit
18K Unit
24K Unit
Left Right
(Rear piping hole) (Rear piping hole)
Left
Right
(Rear piping hole)
Left
(Rear piping hole)
(Rear piping hole)
Right
(Rear piping hole)
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POWER AND WIRING INSTALLATION
Setting Master-Slave Indoor Units (24K Size Only)
Typically, the outdoor unit will select a master indoor unit upon power up. A single indoor unit may
be programmed at the master zone. The master zone will always have priority over the other indoor
units. Setting an indoor unit as the master zone is not required for system operation.
To set an indoor unit as a master zone, locate master/slave configuration switches on the outdoor main
control board. The switch locations 1, 2, 3 correspond to Indoor units (or Ports) 1, 2, 3. Select the master
zone by setting the desired switch to the “On” position. The other switches need to be set in the “Off”
for slaves. By turning the switch from number to ON, the IDU with ON is set to be the master unit.
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