Acronyms - York MILLENIUM SIMPLICITY ELITE Series Technical Application And Programming Manual

Single package rooftop units 25, 30 & 40 ton equipped with controls
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351579-YTS-B-0608
monitoring and control. Much like we need a unique street
address in our homes so we can receive our postal mail or
emergency services, these units also need a unique address so
the central Facilities Management System (FMS) can "talk" to
each unit individually. The Simplicity
serial number of the specific unit and has a memory space for a
customer name to be applied. So the entire identification for a
specific unit available to the network could be, for example,
Y2AC04M3KDGABA, NCNM123456, SOUTH OFFICE.
The one-time commands to Override ASCD timers and/or to
start Run Test can be issued by the Test/Reset/Up pushbutton.
When this button is pushed and released within five seconds,
the control will zero all ASCD's for one cycle.

ACRONYMS

A number of acronyms are used throughout this training
manual. These are specific to the Simplicity
also used in the Technical Guide and Installation and Operation
manuals. Acronyms are used to refer to input and output
hardware points and software parameters such as timing delays
and setpoints.
Table 1: Acronyms
Inputs
APS
IAQ
Passes BAS economizer command through to
BAS Economizer
BPS
C1O-C4O
DF
DPS
FSI
G
GV1-3
HPS1-4
Low pressure switch monitored for compressor
LPS1-4
Lim 1-3
Over-temperature limit switch from heat stages
OAT
OCC
Purge
RAT
SAT
SD
OAH
RAH
SSA
ST
W1, 2, 3
Y1,2 3, 4
6
®
board has the model and
®
control. They are
Description
Air Proving Switch
Air Quality (CO2 Sensor)
Economizer output
Building Pressure Sensor
Compressor Status
Dirty Filter Status
Duct Pressure Sensor
Hot Water Coil Freeze Input
Thermostat input for Fan
Monitors gas valve actuation call
High pressure switch monitored for
compressor discharge
suction
Outside Air Temperature
Building Occupied Status
Building Purge input
Return Air Temperature
Supply Air Temperature
System Shutdown Connector
Outside Air Enthalpy
Return Air Enthalpy
Setpoint Adjust
Space Temperature
Heating Stages from Tstat
Cooling Stages from Tstat
Table 1: Acronyms (Continued)
Pushbuttons
Test/Reset / 'Up
'Test / control reset / Data value increment
Address / 'Down
'Change data / Data value decrement
Alarms / Advance data
Program
Real Time Clock
Outputs
Status LED
Digital displays
One 2-character and one 4-character
C1-C4
CF1, 2
ECO
EXH
Exhaust Air Damper / Exhaust VFD Signal
EXD
Supply Fan relay output [contactor or
Fan
H1, 2, 3
HGR
HWV
VFD
Supply Fan IGV or VFD Signal Output
X
Miscellaneous
AI
AO
BI
BO
CAV
VAV
VFD
IGV
IAQ
PI
ASCD
Anti Short Cycle Timer (Compressor)
The acronyms used throughout this training manual are listed in
the Acronym Table 1. They are described in much more detail
below.
INPUTS
There are two types of hardwired input points on the Simplicity
control: Analog and Binary. These may be sensors, feedback,
or adjustable setpoints. Typical analog inputs [AI] include Space
Temperature (ST), Supply and Return Air Temperatures (SAT,
RAT), and Building Pressure Sensor (BPS). The binary inputs
®
(BI) on the Millennium
Simplicity
determine the status of a monitored point. Typical BI points are
Fan Status (APS), Filter Status (DFS), and Compressor Status
(HPS1-4, LPS1-4, C1O-4O).
Description
Show alarms / go to next data point
Go to program mode
Incorporated on the board
Description
Flash to indicate alarm, otherwise
'heartbeat'
Cooling Outputs 1 through 4
Cond Fan Bank 1, 2
Economizer damper output
Exhaust Fan relay output
Output
permission relay]
Heating Stages 1, 2, and 3 output
Hot gas reheat [future]
Hot Water Valve output
Alarm signal
Description
Analog Input
Analog Output
Binary Input same as
Binary Output
Constant Air Volume
Variable Air Volume
Variable Frequency Drive
Inlet Guide Vane
Indoor Air Quality
Proportional-Integral Control
®
use a dry contact input to
Johnson Controls Unitary Products
®

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