Daikin RCS - RTU Expansion Module A I;O; SCU Expansion Module A I;O

Table 6: RTU Expansion Module A I/O
I/O Cong. Code Condition
RTU — Expansion Module A Pos. 1 = 0
Design Flow, RPS Energy Recovery, RPS Dehumidication, 5 or 6 Compressors
Universal Inputs/Outputs
# DI AI DO AO Point Comments Cong. Code Condition
X 1 X LSCRH Valve 0-10 VDC 28 = 4 or 5
X 2 X Reheat #1 0-10 VDC 28 = 2
X 3 X Reheat #2 0-10 VDC NA
X 4 X Supply Temp Leaving Wheel 10K Thermistor (STD) 20 > 0
X 4 X DesignFlo 1 Ratiometric 9 > 0
X 5 X Exhaust Temp Leaving Wheel 10K Thermistor (STD) 20 > 1
X 5 X DesignFlo 2 Ratiometric 9 > 0
X 6 X Relative Humidity 0-10 VDC or 4-20 mA All
X 7 X High Refrigerant Pressure 1 (future) Ratiometric input required NA
X 8 X High Refrigerant Pressure 2 (future) Ratiometric input required NA
Digital Outputs — Relay (SPST, Normally Open, 230 VAC 3 Amp)
# Point Comments Cong. Code Condition
DO 1 Compressor 5 / GC Stg 5 3 = 1 & 4 = A or 3 = 1 & 4 = 1 & 5 > 4
DO 2 Compressor 6 / GC Stg 6 3 = 1 & 4 = A or 3 = 1 & 4 = 1 & 5 > 6
DO 3 Reheat Output 28 = 1, 2, or 5
DO 4 Constant Speed Enthalpy Wheel Energy Recovery 20 = 1 or 6
Digital Outputs — Triac (24 VAC, 0.5 Amp)
# Point Comments Cong. Code Condition
DO 5 Bypass Damper CLOSED Energy Recovery 20 > 0 & 8 <> 2
DO 6 Bypass Damper OPEN Energy Recovery 20 > 0 & 8 <> 2
Table 7: SCU Expansion Module A I/O
I/O Cong. Code Condition
SCU — Expansion Module A Pos. 1 = 1
All Units: (CO
2
/Remote Min OA, Waterow Switch, Head Pressure Control, 5 or 6 Compressors)
Universal Inputs/Outputs
# DI AI DO AO Point Comments Cong. Code Condition
X 1 X CO
2
/ Min OA / OA CFM 0–10 VDC or 4–20 mA 8 = 3 & 9 = 5 for OA CFM
X 2 X Duct Static Pressure 1 4–20 mA 1 = 1 & 15 = 6
X 3 X OA CFM 0–10 VDC or 4–20 mA 8 = 3 or 6 & 9 = 6 for OA CFM
X 4 NA
X 5 X Waterow Switch Dry Contact 3 = 1 & 4 > 1 & 22 = 0
X 6 X Relative Humidity
0–10 VDC or 4–20 mA —
Dehumidication
All
X 7 X High Refrigerant Pressure 1 Ratiometric input required 22 = 1
X 8 X High Refrigerant Pressure 2 Ratiometric input required 22 = 1
Digital Input – 115V-230V
# Point Comments Cong. Code Condition
DI OAD End Switch Input 115 VAC Input 1 = 1 & 8 = 8 or 9
Digital Outputs – Relay (SPST, Normally Open, 230 VAC 3 Amp)
# Point Comments Cong. Code Condition
DO 1 Compressor 5 3 = 1 & 4 > A
DO 2 Compressor 6 3 = 1 & 4 > A
DO 3 Compressor 7 3 = 1 & 4 = F or G
DO 4
Digital Outputs – Triac (24 VAC, .5 Amp)
# Point Comments Cong. Code Condition
DO 5 Compressor 8 3 = 1 & 4 = F or G
DO 6
ConTroller InpuTs/ouTpuTs
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