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