Table 22: Real Time Error Numbers - York YLAA0041 Installation Operation & Maintenance

Form 150.72-ICOM6
Issue date: 12/19/2023
Communications data map notes
See Table 22 on page 173.
1. IPU II based units are configured for Native BAC-
net MS/TP and Modbus RTU communications.
E-Link Gateway not required for these two com-
munication protocols.
2. BACnet Object Types:
0 = Analog In
1 = Analog Out
2 = Analog Value
3 = Binary In
4 = Binary Output
3.
WC= Inches of water
column
CFM = Cubic Feet per
Minute
FPM = Feet per Minute
PSI = Lb per square
inch
4. Water Cooled Scroll units use the same firmware
as Air Cooled Scroll units, ignoring Fan Control.
The following table shows the real time error numbers
that may be encountered during communication setup
and a description of each.
Johnson Controls
5 = Binary Value
8 = Device
15 = Alarm Notifica-
through
tion (0 127
are reserved ASHRAE
Objects).
Pa = Pascals
kPa = Kilopascals
PPM = Part per Mil-
lion
kJ/kg = Kilojoules per
Kilogram.

Table 22: Real Time Error Numbers

Error
number
(##)
0 All ok
1 Datum type ok test failed
2 English text too long
3 Floating point exception
4 Get packet failed
5 Get type failed
6 Invalid unit conversion
7 Invalid hardware selection
8 Real time fault
9 Spanish text too long
10 Thread exited
11 Thread failed
12 Thread stalled
13 IO board reset
14 BRAM invalid
15 BACnet setup failed
Reboot required (cycle power) after set-
tings are changed.
Section 7: Unit controls
Description
173
7