Goodman Mfg ANSI Z21.47CSA-2.3 Drop, Power and LOW Voltage Block Locations

All line voltage connections must be made through weather- proof fittings. All exterior power supply and ground wiring must be in approved weatherproof conduit.

The main power supply wiring to the unit and low voltage wiring to accessory controls must be done in accordance with these instructions, the latest edition of the National Electrical Code (ANSI/NFPA 70), and all local codes and ordinances. All field wiring shall conform with the temperature limitations for Type T wire (63°F/35°C rise).

The main power supply shall be three-phase, three wire. The unit is factory wired for the voltage shown on the unit’s data plate.

NOTE: If supply voltage is 208V, all leads on primary of trans- former TRANS1 must be moved from the 230V to the 208V tap.

Main power wiring should be sized for the minimum wire ampacity shown on the unit’s database. Size wires in accor- dance with the ampacity tables in Article 310 of the National Electrical Code. If long wires are required, it may be neces- sary to increase the wire size to prevent excessive voltage drop. Wires should be sized for a maximum of 3% voltage

Line voltage connects to middle contactor on 460v and 575v Gas Packs

Power Block (Coolers &

230V Gas Packs Only)

Line voltage connects to power block on Coolers and the 230v Gas Packs

Field wiring enters from this direction

Ground

Lug

Low Voltage

Terminal Strip

Thermostat wiring for all units connect to low voltage strip

drop.

CAUTION

TO AVOID PROPERTY DAMAGE OR PERSONAL INJURY DUE TO FIRE, USE ONLY COPPER CONDUCTORS.

CAUTION

TO PREVENT IMPROPER AND DANGEROUS OPERATION DUE TO WIRING ERRORS, LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. VERIFY PROPER OPERATION AFTER SERVICING.

NOTE: A weather-tight disconnect switch, properly sized for the unit total load, must be field installed. An external field supplied disconnect may be mounted on the exterior panel.

Ensure the data plate is not covered by the field-supplied disconnect switch.

•Some disconnect switches are not fused. Protect the power leads at the point of distribution in accordance with the unit data plate.

•The unit must be electrically grounded in accordance with local codes or, in the absence of local codes, with the latest edition of the National Electrical Code (ANSI-NFPA 70). A ground lug is provided for this purpose. Size grounding conductor in accordance with Table 250-95 of the National Electrical Code. Do not use the ground lug for connecting a neutral conductor.

•Connect power wiring to the middle contactor within the main control box.

POWER AND LOW VOLTAGE BLOCK LOCATIONS

WARNING

FAILURE OF UNIT DUE TO OPERATION ON IMPROPER LINE VOLTAGE OR WITH EXCESSIVE PHASE UNBALANCE CONSTITUTES PRODUCT ABUSE AND WILL VOID YOUR WARRANTY AND MAY CAUSE SEVERE DAMAGE TO THE UNIT ELECTRICAL COMPONENTS.

AREAS WITHOUT CONVENIENCE OUTLET

It is recommended that an independent 115V power source be brought to the vicinity of the roof top unit for portable lights and tools used by the service mechanic.

UNITS INSTALLED ON ROOF TOPS

Main power and low voltage wiring may enter the unit through the side or through the roof curb. Install conduit connectors at the desired entrance locations. External connectors must be weatherproof. All holes in the unit base must be sealed (including those around conduit nuts) to prevent water leak- age into building. All required conduit and fittings are to be field supplied.

Supply voltage to roof top unit must not vary by more than 10% of the value indicated on the unit data plate. Phase voltage unbalance must not exceed 2%. Contact your local power company for correction of improper voltage or phase unbalance.

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