22 Daikin IM 696-4
Service Information
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Analog input Input description Input jumper Input switch
Analog input Input Description AI jumper AI switch
Table 7: Analog inputs for main control board (MCB)—discharge air controller (DAC)
MCB-AI1 Zone (space) air temperature (optional) 1-RTD T (OFF)
MCB-AI2 External discharge air temperature reset NJ-VDC (no jumper) V (ON)
MCB-AI3 Discharge air temperature 1-RTD T (OFF)
MCB-AI4 Return air temperature 1-RTD T (OFF)
MCB-AI5 Outdoor air temperature 1-RTD T (OFF)
MCB-AI6 Entering fan air temperature
a
1-RTD T (OFF)
MCB-AI7 External OA damper reset NJ-VDC (no jumper) V (ON)
DesignFlow OA airflow #1 (right-hand station)
b
NJ-VDC (no jumper) V (ON)
MCB-AI8 DesignFlow OA airflow #2 (left-hand station)
c
NJ-VDC (no jumper) V (ON)
MCB-AI9 Outdoor air damper position
h
NJ-VDC (no jumper) V (ON)
MCB-AI10 Heating valve position
h
NJ-VDC (no jumper) V (ON)
MCB-AI11 Cooling valve position
h
NJ-VDC (no jumper) V (ON)
Evaporative Condenser Sump Temperature 1-RTD T (OFF)
MCB-AI12 Relative humidity
d
NJ-VDC (no jumper) V (ON)
MCB-AI13 Duct static pressure #1
e
NJ-VDC (no jumper) V (ON)
MCB-AI14 Duct static pressure #2/building static pressure (optional)
f
NJ-VDC (no jumper) V (ON)
MCB-AI15
e
Discharge fan VFD speed /inlet vane position NJ-VDC (no jumper) V (ON)
MCB-AI16
g
Return fan VFD speed NJ-VDC (No Jumper) V (ON)
a. EFT sensor supplied only on units equipped with gas or electric heat.
b. If unit equipped with DesignFlow OA airflow measuring stations, input is an airflow signal from the right-hand DesignFlow station. Otherwise, is an optional
external OA damper position reset signal supplied by field.
c. If unit equipped with DesignFlow OA airflow measuring stations, input is an airflow signal from the left-hand DesignFlow station. Otherwise it is a spare input.
d. A humidity sensor can be wired to this input to provide a space humidity reading via a BACnet network interface to the unit.
e. This input applicable to VAV units only (discharge fan VFD or inlet vanes).
f. This input defined as a second duct static pressure input on VAV units if the unit is configured for “fan tracking” return fan control. It is defined as a building
static pressure input if unit is configured for “direct building pressure” return fan control.
g. This input applicable on units equipped with a return VFD or inlet vanes.
h. Some older units are equipped with a 0–500Ω (2-wire) resistance feedback signal. In this case, the analog input jumper must be in the 1-RTD position, the
corresponding input switch must be in the T (OFF) position and the Feedback= parameter in the Economizer Setup, Heating Setup or Chilled Water Setup
menu (as applicable) must be set to “2 Wire.”
Table 8: Analog inputs for main control board (MCB)—CAV-ZTC (SCC)
MCB-AI1 Zone (space) air temperature
a
1-RTD T (OFF)
MCB-AI2 Remote space temperature set point (optional) 1-RTD T (OFF)
MCB-AI3 Discharge air temperature 1-RTD T (OFF)
MCB-AI4 Return air temperature 1-RTD T (OFF)
MCB-AI5 Outdoor air temperature 1-RTD T (OFF)
MCB-AI6 Entering fan air temperature
b
1-RTD T (OFF)
MCB-AI7 External OA damper reset NJ-VDC (no jumper) V (ON)
Designflow OA airflow #1 (right-hand station)
c
NJ-VDC (no jumper) V (ON)
MCB-AI8 designflow OA airflow #2 (left-hand station)
d
NJ-VDC (no jumper) V (ON)
MCB-AI9 Outdoor air damper position
f
NJ-VDC (no jumper) V (ON)
MCB-AI10 Heating valve position
f
NJ-VDC (no jumper) V (ON)
MCB-AI11 Cooling valve position
f
NJ-VDC (no jumper) V (ON)
Evaporative condenser sump temperature 1-RTD T (OFF)
MCB-AI12 Relative humidity NJ-VDC (no jumper) V (ON)
MCB-AI13 Not used NA NA
MCB-AI14 Building static pressure (optional) NJ-VDC (no jumper) V (ON)
MCB-AI15 Not used NA NA
MCB-AI16
e
Return fan VFD speed NJ-VDC (no jumper) V (ON)
a. Sensor required if unit is 100% OA. Otherwise, it is optional.
b. Sensor supplied only on units equipped with gas or electric heat.
c. If unit equipped with DesignFlow OA airflow measuring stations, this input is an airflow signal from the right-hand DesignFlow station. Otherwise, it is an
external OA damper position reset signal supplied by the field.
d. If unit equipped with DesignFlow OA airflow measuring stations, this input is an airflow signal from the left-hand DesignFlow station. Otherwise, it is a spare
input.
e. This input applicable on units equipped with a return VFD or inlet vanes.
f. Some older units are equipped with a 0-500W (2-wire) resistance feedback signal. In this case the analog input jumper must be in the 1-RTD position, the
corresponding input switch must be in the T (OFF) position and the Feedback= parameter in the Economizer Setup, Heating Setup or Chilled Water Setup
menu (as applicable) must be set to “2 Wire.”
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