Electrical Installation; Wiring; Power Supply - Daikin Maverick I Installation And Maintenance Manual

Commercial packaged rooftop systems

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Operation manual (48 pages)

Installation and maintenance manual (97 pages)

Table Of Contents

Table of Contents

Wiring

Power Supply

Power supply to the unit must be disconnected before making field

connections. To avoid electrical shock, personal injury or death, be sure to

rigorously adhere to field wiring procedures regarding proper lockout and

tagout of components.

1. All wiring should be made in accordance with the

National Electrical

Code. Consult the local power

company to determine the availability of sufficient power

to operate the unit. Check the voltage at power supply to

make sure it corresponds to the unit's RATED VOLTAGE

REQUIREMENT. Install a branch circuit disconnect near

the rooftop, in accordance with the N.E.C., C.E.C. or

local codes.

2. It is important that proper electrical power is available at

the unit. Voltage should not vary more than 10% from

that stamped on the unit nameplate. On three phase

units, phases must be balanced within 3%.

3. For branch circuit wiring (main power supply to unit

disconnect), the minimum wire size for the length of

run can be determined from

ampacity found on the unit rating plate. Use the smallest

wire size allowable from the unit disconnect to the unit.

Wire size based on 75°C rated wire insulation for 1%

voltage drop.

4. For more than 3 conductors in a raceway or cable, see

the N.E.C. (C.E.C. in Canada) for derating the ampacity

of each conductor.

5. For through-the-base wiring entry, reference

15. All fittings and conduit are field-supplied for this

application. Reference

conduit size.

IMPORTANT: This unit is approved for use with copper

conductors only connected to unit contactor. Warranty will be

voided if aluminum wire is connected to unit contactor.

IM 972-2 • MAVERICK I ROOFTOP SYSTEMS

DANGER

Table 4

using the circuit

Figure

Table 5

for proper hole and

Figure 13: Recommended Branch Circuit Disconnect

Location

Figure 14: Base Entry Locations (Cooling Only)

RUN THERMOSTAT

WIRING IN THIS

CHASE TO

CONTROL

BOARD

(2) CAP PLUGS

BASE

CONTROL

ENTRY

Figure 15: Base Entry Locations (Gas Heat)

RUN THERMOSTAT

WIRING IN THIS

CHASE TO CONTROL

BOARD

POWER WIRES

FROM DISCONNECT

TO TERMINAL BLOCK

WASHERS

CONTROL VOLTAGE

KNOCKOUT

WIRE FROM

ZONE THERMOSTAT

STRAIGHT CONDUIT

FITTING

CONDUIT FROM

ZONE THERMOSTAT