Johnson Controls LSWU User Manual

JOHNSON CONTROLS
192
FORM 145.05-NOM7
ISSUE DATE: 10/31/2019
SECTION 7 – PARAMETER DESCRIPTIONS AND OPTIONS
MENU ITEM DEFINITION
READY TO STOP COMP E
This is a derived value and means the minimum ON time has been achieved
and compressor E ready to be de-energized. The User Interface displays either
YES or NO.
READY TO STOP COMP F
This is a derived value and means the minimum ON time has been achieved
and compressor F is ready to be de-energized. The User Interface displays
either YES or NO.
REFRIGERANT TYPE
This parameter is programmed through the Options key and identies the type
of refrigerant in the unit. The choices are R22, R407C, or R410A.
RETURN AIR BYPASS - ACTIVE
SETPOINT
This is a derived value and is the position of the by pass damper by percent
open the Primary Controller uses as the bypass setpoint on a FlexSys unit.
RETURN AIR BYPASS - CURRENT
This is a derived value and is the current position of the by-pass damper by
percent open on a FlexSys unit.
RETURN AIR ENTHALPY This is a derived value and indicates the total heat content of the return air.
RETURN AIR HUMIDITY This is a derived value and is the return air relative humidity.
RETURN AIR TEMP CURRENT This is the actual return air temperature entering the unit.
SAFETY INPUT CHAIN A
This is a derived value and is the binary input to the Primary Unit Controller
from the Compressor Safety Circuit Chain for compressor A. This includes the
high pressure cutout and may include the compressor protection module. Okay
means the safety circuit is normal and Faulted means it has faulted.
SAFETY INPUT CHAIN B
This is a derived value and is the binary input to the Primary Unit Controller
from the Compressor Safety Circuit Chain for compressor B. This includes the
high pressure cutout and may include the compressor protection module. Okay
means the safety circuit is normal and Faulted means it has faulted.
SAFETY INPUT CHAIN C
This is a derived value and is the binary input to the Primary Unit Controller
from the Compressor Safety Circuit Chain for compressor C. This includes the
high pressure cutout and may include the compressor protection module. Okay
means the safety circuit is normal and Faulted means it has faulted.
SAFETY INPUT CHAIN D
This is a derived value and is the binary input to the Primary Unit Controller
from the Compressor Safety Circuit Chain for compressor D. This includes the
high pressure cutout and may include the compressor protection module. Okay
means the safety circuit is normal and Faulted means it has faulted.
SAFETY INPUT CHAIN E
This is a derived value and is the binary input to the Primary Unit Controller
from the Compressor Safety Circuit Chain for compressor E. This includes the
high pressure cutout and may include the compressor protection module. Okay
means the safety circuit is normal and Faulted means it has faulted.
SAFETY INPUT CHAIN F
This is a derived value and is the binary input to the Primary Unit Controller
from the Compressor Safety Circuit Chain for compressor F. This includes the
high pressure cutout and may include the compressor protection module. Okay
means the safety circuit is normal and Faulted means it has faulted.
SAT HIGH SETPOINT
This parameter is programmed through the Setpoints key. This establishes the
maximum Active Supply Air Temperature to be used in a Variable Air Volume
unit.
SAT LOW SETPOINT
This parameter is programmed through the Setpoints key. This establishes the
minimum Active Supply Air Temperature to be used in a Variable Air Volume unit.
SAT RESET METHOD
This parameter is programmed through the PROGRAM key and identies the
supply air temperature reset method being used on a Variable Air Volume unit. The
choices are Hardwired Input, Outside Temp, Return Temp, or Supply Fan Speed.
SF VFD BYPASS
This parameter is programmed through the OPTIONS key and identies if a
VFD bypass is installed in the unit. The options are Not Installed or Installed.
SF VFD BYPASS MODE
This parameter is set through the PROGRAM key and is used to place the sup-
ply fan VFD into bypass mode when a supply fan VFD bypass is installed. The
options are VFD Active or VFD Bypassed.
TABLE 43 - DEFINITIONS (CONT'D)

Johnson Controls LSWU Specifications

General

Brand	Johnson Controls
Model	LSWU
Category	Chiller
Language	English