Table 3: I/O terminal blocks, functions, ratings, requirements, and cables
Terminal block
label
Terminal
labels
Function, ratings, and
requirements
To determine wire size and
maximum cable length
Analog Input - Voltage Mode
(0–10 VDC)
10 VDC maximum input voltage
Internal 75k ohm Pulldown
See Guideline A in Table 4.
Analog Input - Resistive Mode
(0–600k ohm)
Internal 12 V, 15k ohm pull up
Qualified Sensors: 0–2k
potentiometer,
RTD (1k Nickel [Johnson Controls
sensor],
1k Platinum, and A99B Silicon
Temperature Sensor)
Negative Temperature
Coefficient (NTC) Sensor
10K Type L (10K Johnson
Controls Type II is equivalent to
Type L) or 2.252K Type II
See Guideline A in Table 4.
INn
Binary Input - Dry Contact
Maintained Mode
1 second minimum pulse width
Internal 12 V, 15k ohm pull up
See Guideline A in Table 4.
ICOMn Universal Input Common for
all Universal IN terminals
Note: All Universal ICOMn
terminals are isolated
from all other commons
on the -0 models. The -1
model ICOMn terminals are
isolated from FC BUS COM
terminals only.
Same as (Universal) INn.
BINARY
(Outputs)
OUTn Binary Output - 24 VAC Triac
(Internal Power)
Sources internal 24 VAC power
(24~ HOT)
See Guideline C in Table 4.
15FX-PCV1615/1626/1628/1630 Programmable VAV Box Controllers Installation Instructions
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