103
APPENDIX A
INPUT/OUTPUT TABLES, CHANNELS 1-18 (PSIO1) — SIZES 034-078
INPUT/OUTPUT TABLES, CHANNELS 19-30 (DSIO1) — SIZES 034-078
LEGEND
*Thermistor voltage signals varies according to temperature at
thermistor; see Thermistor Characteristic Tables 59 and 60 for
correlation of temperature and volts at these channels.
†When accessory transducer/sensor package has been installed
(requires changes in “Factory Configuration” inputs).
**Field-connection from building/energy management system.
††Field-connection to room terminal heating interlock.
PSIO1 TERMINAL ID SIGNAL
TYPE POINT NAME — ASSIGNMENT
Channel
No.
+ – Type Level
Inputs
1
J7-2 J7-3 Analog Varies*
Thermistor, 5K SAT — Supply Air Temp
2
J7-5 J7-6 Analog Varies*
Thermistor, 5K RAT — Return Air Temp
3†
J7-8 J7-9 Analog Varies* Thermistor, 5K STHA — Saturated Condensing Temp, Ckt 1
J7-8 J7-7 Analog 1-5 vdc Transducer, Pressure DPAV — Discharge Pressure Transducer, Ckt 1
4†
J7-11 J7-12 Analog Varies* Thermistor, 5K STHB — Saturated Condensing Temp, Ckt 2
J7-11 J7-10 Analog 1-5 vdc Transducer, Pressure DPBV — Discharge Pressure Transducer, Ckt 2
5†
J7-13 Discrete 24 vac Contact set LPA — Low Pressure Switch, Ckt 1
J7-13 J7-14 Analog 1-5 vdc Transducer, Pressure SPAV — Suction Pressure Transducer, Ckt 1
6†
J7-16 J7-17 Discrete 24 vac Contact set LPB — Low Pressure Switch, Ckt 2
J7-16 J7-17 Analog 1-5 vdc Transducer, Pressure SPBV — Suction Pressure Transducer, Ckt 2
7
J7-20 J7-21 Analog Varies*
Thermistor, 5K OAT — Outdoor Air Temp
8
J7-23 J7-24 Analog Varies*
Thermistor, 10K SPT — Space Temp
9
J7-25 J7-26 Analog 2-10 vdc
Transducer, Pressure BP — Building Pressure
10
J7-28 J7-29 Discrete 24 vac
Contact set ENTH — Enthalpy Switch
11
J7-31 J7-32 Analog 2-10 vdc Transducer, Pressure SP — Duct Static Pressure (VAV)
J7-33 Analog 2-10 vdc
Thermistor, 10K STO — Space Temp Offset/T-56
12
J7-35 J7-36 Discrete 5 vdc Contact set FLTS — Filter Status
Pin 36 Discrete 10 vdc Contact set SFS — Supply Fan Status
Outputs
13
J6-39 J6-38 Discrete 24 vac
Contact, NO MM — Motormaster®/OD Fan Stage 1
14
J6-40 — Analog 10 vdc
Proportional, 4-20 mA ECON — Economizer Damper Position
15
J6-43 — Analog 10 vdc
Proportional, 4-20 mA PED — Power Exhaust Damper Position
16
J6-46 J6-47 Analog 10 vdc Proportional, 4-20 mA IGV — IGV/Inverter/(VAV)
J6-48 J6-47 Discrete 24 vac Contact, NO SF2S — Supply Fan Low Speed (CV)
17
J6-51 J6-50 Discrete 24 vac
Contacts (NO) HS1 — Heat Stage 1
18
J6-54 J6-53 Discrete 24 vac
Contacts (NO) HS2 — Heat Stage 2
DSIO1 TERMINAL ID SIGNAL
TYPE POINT NAME — ASSIGNMENT
Channel No. + – Type Level
Inputs
19
J3-1 J3-2 Discrete 24 vac Contact set CPFA1 — Compressor 1 Safety
10
J3-3 J3-4 Discrete 24 vac Contact set CPFB1 — Compressor 2 Safety
21
J3-5 J3-6 Discrete 24 vac Contact set CPSA1 — Compressor 1 Status
22
J3-7 J3-8 Discrete 24 vac Contact set CPSB1 — Compressor 2 Status
Outputs
23
J4-3 J4-2 Discrete 115 vac Contact set (NO) CMPA1 — Compressor 1
J4-3 J4-1 Discrete 115 vac Contact set (NC) CH1 — Crankcase Heater 1
24
J4-6 J4-5 Discrete 115 vac Contact set (NO) CMPB1 — Compressor 2
J4-6 J4-4 Discrete 115 vac Contact set (NC) CH2 — Crankcase Heater 2
25
J4-9 J4-8 Discrete 24 vac Contact set (NO) ULDA1 — Unloader U1
26
J4-12 J4-11 Discrete 24 vac Contact set (NO) ULDB1 — Unloader U2
27
J5-3 J5-2 Discrete 115 vac Contact set (NO) SF — Supply Fan Contactor
28
J5-6 J5-5 Discrete 115 vac Contact set (NO) EF — Exhaust Fan Contactor
29
J5-9 J5-8 Discrete 115 vac Contact set (NO FR2 — Outdoor Fan Contactor, Ckt 1
30
J5-12 J5-11 Discrete 115 vac Contact set (NO) FR3 — Outdoor Fan Contactor, Ckt 2
CV —
Constant Volume
HIR —
Heat Interlock Relay
IGV —
Inlet Guide Vanes
NC —
Normally Closed
NO —
Normally Open
Temp —
Temperature
VAV —
Variable Air Volume
UNIT SIZE 034-048 054-078
HIR Contact
TB3 TB2
N.O.
4 + 5 8 + 9
N.C.
4 + 2 8 + 10
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