Daikin MicroTech II Installation And Maintenance Manual page 27

Applied rooftop unit controller

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Operation and maintenance manual (44 pages)

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Installation and maintenance manual (24 pages)

Table Of Contents

Table of Contents

When the jumper is in position 3-OFFBRD (no jumper

installed) there is no on-board voltage applied to the numbered

terminal of the corresponding binary output. In the case of

BO1 through BO4, BO11 and BO12, the numbered terminal is

simply "made" to the NO terminal when the corresponding

output is on (output relay energized) or to the NC terminal

when the corresponding output is off (output relay de-

energized). In the case of BO5 through BO10 and BO13

through BO16, the numbered terminal is simply "made" to the

Table 13: Binary outputs for main control board (MCB)

Binary output

BO1

Discharge air fan, On/Off

BO2

Return air fan, ON/OFF

BO3

Fan Operation Output Signal

BO4

Alarm Output Signal

BO5

Close outdoor air dampers

BO6

Open outdoor air dampers

BO7

Close chilled water valve

Close chilled water F&BP dampers

Cool enable

Evaporative condenser sump pump, ON/OFF

BO8

Open chilled water valve

Open chilled water F&BP dampers

BO9

Close heating valve

Close heating F&BP dampers

BO10

Open heating valve

Open heating F&BP dampers

BO11

Gas furnace enable/disable

Single stage heat ON/OFF

F&BP damper/valve changeover

Heat enable

BO12

VAV box output signal

Decrease discharge fan VFD speed

BO13

Dehumidification reheat circuit # 2

Increase discharge fan VFD speed

BO14

Dehumidification reheat circuit # 1

Decrease return fan VFD speed

BO15

Increase return fan VFD speed

BO16

a. If the unit is equipped with chilled water cooling, output BO7 closes the chilled water valve. If the unit is equipped with chilled water cooling with face and

bypass dampers, output BO7 closes the face dampers. If the unit is equipped with DX cooling, BO7 provides a signal to the auxiliary cooling control boards

(CCB1 and CCB2) to enable cooling operation. If unit is equipped with an evaporative condenser, BO7 turns the sump pump on.

b. If the unit is equipped with chilled water cooling, output BO8 opens the chilled water valve. If the unit is equipped with chilled water cooling with face and

bypass dampers, output BO8 opens the face dampers.

c. If the unit is equipped with modulating heat, output BO9 closes the heating valve. If the unit is equipped with modulating heat with face and bypass dampers,

output BO9 closes the face dampers.

d. If the unit is equipped with modulating heat, output BO10 opens the heating valve. If the unit is equipped with modulating heat with face and bypass dampers,

output BO10 opens the face dampers.

e. If the unit is equipped with modulating gas heat, output BO11 enables the gas furnace. If the unit is equipped with single stage heat for morning warm up

purposes, BO11 turns on the single stage of heat. If the unit is equipped with modulating heat with face and bypass dampers, BO11 changes the heat control

such that BO9 and BO10 either modulate the heating value or the face and bypass dampers. If the unit is equipped with multiple stage electric heat, output

BO11 provides a signal to the auxiliary electric heat control board (EHB1) to enable heating operation.

Daikin IM 696-4

Output description

NO terminal when the corresponding triac output is on. This

jumper configuration is used most often in this product

application. Refer to Table 13 on page 25 for the correct

jumper position for all the standard binary outputs.

The 2-BRD24V jumper configuration is not used in this

product application.

Lit LED indication

Fan ON

Fans ON