Single Zone Outdoor Condenser Installation Manual
DURASTAR.COM
13
STEP 4: CONNECT THE SIGNAL AND POWER CABLES
The outside unit’s terminal block is protected by an electrical wiring cover on the side of the unit. A
comprehensive wiring diagram is printed on the inside of the wiring cover.
WARNING
Before performing any electrical or wiring work, turn off the main power to the system.
Prepare the cable and wires for connection:
• Using wire strippers, strip the rubber jacket from both ends of cable to reveal about 1.5" (38-
40mm) of the wires inside.
• Strip the insulation from the ends of the wires.
• Using a wire crimper, crimp u-lugs on the ends of the wires.
WARNING
Pay attention to the live wire. While crimping wires, make sure you clearly distinguish
the Live (“L”) Wire from other wires.
WARNING
All wiring work must be performed strictly in accordance with the wiring diagram
located inside the terminal cover of the outdoor unit.
1. Remove the electrical wiring cover.
2. Remove the caps on the conduit panel.
3. Temporarily mount the conduit tubes (sold separately) onto the conduit panel.
4. Properly connect both the power supply and low voltage lines to the corresponding terminals on
the terminal block.
5. Ground the unit in accordance with local codes.
6. Be sure to cut the wire several inches longer than the required length for future maintenance.
7. Permanently secure the conduit tubes to the conduit panel.
8. Replace the wire cover on the side of the unit, and screw it in place.
(See image on next page.)
USE THE RIGHT CABLE
• Outdoor Power Cable: H07RN-F
• Signal Cable: H07RN-F
CABLE SIZING
Use a minimum of 16 AWG for power and signal cables connected to and between the indoor and
outdoor units.
Choose the Correct Size of Cable
The size of the outdoor power cable, signal cable, fuse, and switch needed is determined by the
maximum current of the unit. The maximum current is indicated on the nameplate located on the side
panel of the unit. Refer to this nameplate to choose the right cable, fuse, or switch.