Daikin Maverick I, Operation Manual

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OM 1077-1 • MAVERICK I

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DANGER

Before beginning any modification, be sure main disconnect switch is in the 

“OFF” position. Disconnect all electric power, including remote disconnect 

before servicing. Failure to do so can cause electrical shock resulting in 

property damage, personal injury or death. Follow proper lockout/tag out 

procedures to ensure the power cannot be inadvertently energized. 

 IMPORTANT

The DDC Controller is shipped with the control disabled so units do not 

accidentally energize during installation. The commissioning of the rooftop 

unit therefore requires the configuration of the Occupied Mode menu prior 

to initial startup. 

See Effective Occupancy on page 20

. 

The unit DDC Controller must have a thermostat or zone 

sensor input in order to operate the unit. If the zone sensor 

is not present, or has failed, the unit will use the return air 

temperature sensor to maintain the occupied set point. The 

flexibility of the unit mode capabilities depends upon the type of 

zone sensor or thermostat selected to interface with the DDC 

controller. 
The descriptions of the following basic Input Devices used 

within the DDC controller network are to acquaint the operator 

with their function as they interface with the various modules. 

Refer to the unit’s electrical schematic for the specific module 

connection. 

The following controls are available from the factory for field 

installation.

Controls using 24 VAC 

Before installing any connecting wiring, refer to the unit 

installation manual for AC conductor sizing guidelines “Field 

Wire Size For 24 Volt Thermostat Circuits”, for the electrical 

access locations provided on the unit, and; 

• 

Use copper conductors unless otherwise specified. 

•  Ensure that the AC control wiring between the controls 

and the unit’s termination point does not exceed three (3) 

ohms per conductor for the length of the run. 

NOTE: 

Note: Resistance in excess of 3 ohms per conductor 

may cause component failure due to insufficient AC 

voltage supply. 

•  Be sure to check all loads and conductors for grounds, 

shorts, and mis-wirings. 

•  Do not run the AC low voltage wiring in the same conduit 

with the high voltage power wiring. 

•  Some thermostat wire insulation has a voltage rating less 

than the line voltage. Route Thermostat Wire behind low 

voltage shield during unit installation per 

Figure 2

. This 

is necessary to meet National Electrical Code (NEC) and 

UL 1995 requirements for separation of high and low 

voltage circuits. 

Controls using DC Analog Input/Outputs 

(Standard Low Voltage Multi-conductor 

Wire) 

Before installing any connecting wiring between the unit and 

components utilizing a DC analog input/output signal, refer to 

the unit installation manual for the electrical access locations 

provided on the unit. 

•  Use shielded cable for high EMI environments. 
•  Note: Resistance in excess of 2.5 ohms per conductor 

can cause deviations in the accuracy of the controls. 

•  Ensure that the wiring between controls and the unit’s 

termination point does not exceed two and a half (2.5) 

ohms per conductor for the length of the run. 

•  Do not run the electrical wires transporting DC signals in 

or around conduit housing high voltage wires. 

•  Most sensor wire insulation has a voltage rating less 

than the line voltage. Route Zone Sensor and Network 

Cable behind low voltage shield during unit installation 

per 

Figure 2

. This is necessary to meet NEC and UL 

1995 requirements for separation of high and low 

voltage circuits. 

Figure 2: Low Voltage Shielding    

Conduit for Low 

Voltage Conductors

Sheilding for Low 

Voltage Conductors