6
Specifi cations
Input voltage
12 VDC
Ambient temperature
23~110°F (-5~43°C)
Ambient humidity
RH40%~RH90%
Table 1. Specifi cations
Figure 5. Wire Multiple Indoor Units
12V
X
Y
E
12V
X
Y
E
12V
X
Y
E
GND
(E)
12V
X
Y
NOTES - 1. Connect “R/12V” on the controller to terminal “12V” on the first indoor
unit only. 12V connection provides power to controller; connection to
multiple indoor units will damage controller and indoor unit boards.
2. Connect terminal “GND (E)” on the controller to terminal “E” on the
indoor
unit.
3. Ground cable shielding at one end of each length of cable, except at
controller.
4. Use stranded, shielded, 18 GA cable.
5. Connect up to 16 indoor units.
1. Daisy chain 3-conductor control wiring to each additional indoor unit using the X Y E
terminals in the electrical control box of the indoor unit. Do not daisy chain 12V power
cable. See Figure 5.
NOTE -
Wiring is polarity sensitive.
