Daikin Maverick I, Operation Manual

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www.DaikinApplied.com 13 

OM 1077-1 • MAVERICK I

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 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 Occupied Mode on page 20

. 

Cooling 

When the DDC Controller receives a call for cooling via 

thermostat or zone sensor compressor 1 energizes. After the 

indoor fan on delay (1-180 sec / default 10 sec) the indoor fan 

energizes. The indoor fan on delay starts when the call for 

cooling is initiated. 
When used in local zone sensor mode of operation, the DDC 

Controller satisfies the set point using all or a partial number 

of stages available. When cooling demand exists, the DDC 

Controller will stage up in the following order: Economizer, First 

Stage Cooling, and Second Stage Cooling based on demand. 
When used in local thermostat mode of operation, the DDC 

Controller allows the thermostat to control the demand for 

cooling. When cooling demand exists, the DDC Controller 

will stage up in the following order: Economizer, First Stage 

Cooling. Only two stages will be allowed to energize, so if the 

economizer is active then the first stage mechanical cooling will 

become second stage and second stage mechanical cooling 

will not be used. 

Heat 

When in heating mode of operation, the DDC Controller 

satisfies the set point using all or a partial number of stages 

available. When heating demand exists, the DDC Controller 

will utilize heat sources in the following order of priority as 

available: Gas Heat and Electric. 
When the heat demand requires multiple heating outputs at 

the same time, a minimum staging delay of 5 seconds between 

energizing and de-energizing heating outputs is necessary to 

prevent the inrush current startup of multiple loads. The inter 

stage is adjustable between 5 and 50 seconds. 
The source of demand, like the other modes of operation, is a 

result of one of either thermostat or remote sensors. 

Integrated Furnace Control 

The Integrated Furnace Control (IFC) is external to the DDC 

Controller, and on units so equipped, controls the furnace and 

gas valve operation based on signals from the DDC controller. 

The IFC also provides furnace troubleshooting information via 

LED flashing fault codes. When a fault condition exists, the 

LED (see 

Figure 7

) flashes the number of times indicated by 

the code number, pauses, and repeats. 

Figure 7: Integrated Furnace Control Status LED     

Table 6: Integrated Furnace Control Fault Codes 

Code

Meaning

1

Failure To Detect Or Sustain Flame

2

Pressure Switch Or Inducer Problem Detected

3

High Limit Protection Deice Open

4

Gas Valve Not Energized Or No “W” Signal

5

Flame Toll Out Switch Open

Call for Heat 

After a call for heat the IFC checks to ensure the high 

temperature limit and rollout switches are closed. If either 

is open, the IFC responds with a fault code. If high limit and 

rollout switches are closed, the IFC checks that both pressure 

switches are open. If either pressure switch is closed, the 

IFC will respond with a fault code and it will flash code “2” 

on the LED, waiting indefinitely for both pressure switches to 

open. If both pressure switches are open, the IFC proceeds 

to prepurge. 

LED