Carrier 50EY User Manual
Page 51
Table 23 — I/O Channel Designations Expansion
Module — CV and VAV
TERMINAL
NO.
ASSIGNMENT
T1-2
—
T3-4
—
T5-6
—
T7-8
—
T9-10
—
T11-12
IAQ Indoor — AI (2-10 vdc)
T13-14
IAQ Outdoor — AI (2-10 vdc)
T15-16
—
T17-25
Fan Status — DI (24 vac)
T18-25
Filter Status — DI (24 vac)
T19-25
Field Applied Status — DI (24 vac)
T20-25
Demand Limit — DI (24 vac)
T21-25
Fire — Unit Shutdown — DI (24 vac)
T22-25
Fire — Pressurization — DI (24 vac)
T23-25
Fire — Evacuation — DI (24 vac)
T24-25
Fire — Smoke Purge — DI (24 vac)
T26-27
—
T28-29
—
T30-29
Alarm Light Indicator — DO (24 vac)
T31-32
Power Exhaust Fire #1 — DO (115 vac)
T33-32
Power Exhaust Fire #2 — DO (115 vac)
T34-35
Power Exhaust Fire #3 — DO (115 vac)
T36-35
Power Exhaust Fire #4 — DO (115 vac)
T37-38
—
T39-38
—
K1
—
K2
—
K3
—
LEGEND
AI
— Analog Input
DI
— Direct Input
DO
— Direct Output
IAQ — Indoor Air Quality
T
— Terminal
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