Carrier 48/50AJ specifications Time Clock Configuration

Table 89 — Switch Logic Configuration

ITEM	EXPANSION	RANGE	CCN POINT	DEFAULT
SW.LG	SWITCH LOGIC: NO / NC
FTS.L	Filter Status Inpt-Clean	Open/Close	FLTSLOGC	Open
IGC.L	IGC Feedback - Off	Open/Close	GASFANLG	Open
RMI.L	RemSw Off-Unoc-Strt-NoOv	Open/Close	RMTINLOG	Open
ECS.L	Economizer Switch - No	Open/Close	ECOSWLOG	Open
SFS.L	Fan Status Sw. - Off	Open/Close	SFSLOGIC	Open
DL1.L	Dmd.Lmt.Sw.1 - Off	Open/Close	DMD_SW1L	Open
DL2.L	Dmd.Lmt.2 Dehumid - Off	Open/Close	DMD_SW2L	Open
IAQ.L	IAQ Disc.Input - Low	Open/Close	IAQINLOG	Open
FSD.L	Fire Shutdown - Off	Open/Close	FSDLOGIC	Open
PRS.L	Pressurization Sw. - Off	Open/Close	PRESLOGC	Open
EVC.L	Evacuation Sw. - Off	Open/Close	EVACLOGC	Open
PRG.L	Smoke Purge Sw. - Off	Open/Close	PURGLOGC	Open

Table 90 — Display Configuration

ITEM	EXPANSION	RANGE	UNITS	POINT	DEFAULT
TEST	Test Display LEDs	ON/OFF		TEST	Off
METR	Metric Display	ON/OFF		DISPUNIT	Off
LANG	Language Selection	0-1(multi-text strings)		LANGUAGE	0
PAS.E	Password Enable	ENABLE/DISABLE		PASS_EBL	Enable
PASS	Service Password	0000-9999		PASSWORD	1111

Table 91 — Remote Switch Configuration

ITEM	EXPANSION	RANGE	CCN
			POINT
REMT	Remote Input State	ON/OFF	RMTIN
RM.CF	Remote Switch Config	0 - 3	RMTINCFG
RMI.L	RemSw	Open/Close	RMTINLOG
	Off-Unoc-Strt-NoOv

Remote Switch Logic Configuration (Configuration→ SW.LG→RMI.L) — The control allows for the configuration of a normally open/closed status of the remote input switch via RMI.L. If this variable is configured OPEN, then when the switch is open, the remote input switch perceives the logic state as OFF. Correspondingly, if RMI.L is set to CLOSED, the re- mote input switch will perceive a closed switch as meaning OFF. See Table 92.

Hot Gas Bypass — Hot gas bypass is an active part of the A-Series ComfortLink™ capacity staging and minimum evaporator load protection functions. It is controlled though the Minimum Load Valve function.

The hot gas bypass option consists of a solenoid valve with a fixed orifice sized to provide a nominal 3-ton evaporator load bypass. A hot gas refrigerant line routes the bypassed hot gas from Circuit A’s discharge line to Circuit A’s evaporator distributor. When the unit control calls for hot gas bypass, the hot gas enters the evaporator coil and adds refrigeration load to the compressor circuit to reduce the cooling effect from Circuit A.

The hot gas bypass system is a factory-installed option installed on Circuit A only. This function is enabled at Config- uration→COOL→MLV. When this function is enabled, an additional stage of cooling capacity is provided by the unit control staging sequences (see Tables 52, 54, 58, and 60).

Space Temperature Offset — Space temperature off- set corresponds to a slider on a T56 sensor that allows the occu- pant to adjust the space temperature by a configured range during an occupied period. This sensor is only applicable to units that are configured as either 2-Stage SPT or Multi-Stage SPT control (Configuration→UNIT→C.TYP = 5 or 6).

ITEM	EXPANSION	RANGE	UNITS	CCN
				POINT
SP.O.S	Space Temp	Enable/		SPTOSENS
	Offset Sensor	Disable
SP.O.R	Space Temp	1 - 10		SPTO_RNG
	Offset Range
SPTO	Space Temperature	+- SP.O.R	^F	SPTO
	Offset

Space Temperature Offset Sensor (Configuration→UNIT →SENS→SP.O.S) — This configuration disables the reading of the offset slider.

Space Temperature Offset Range (Configuration →UNIT→SENS→SP.O.R) — This configuration establishes the range, in degrees F, that the T56 slider can affect SPTO when adjusting the slider from the far left (-SP.O.R) to the far right (+SP.O.R). The default is 5° F.

Space Temperature Offset Value (Temperatures→AIR.T →SPTO) — The Space Temperature Offset Value is the read- ing of the slider potentiometer in the T56 that is resolved to delta degrees based on SP.O.R.

TIME CLOCK CONFIGURATION

This section describes each Time Clock menu item. Not every point will need to be configured for every unit. Refer to the Controls Quick Start section for more information on what set points need to be configured for different applications. The Time Clock menu items are discussed in the same order that they are displayed in the Time Clock table. The Time Clock table is shown in Table 93.

Hour and Minute (HH.MM) — The hour and minute of the time clock are displayed in 24-hour, military time. Time can be adjusted manually by the user.

When connected to the CCN, the unit can be configured to transmit time over the network or receive time from a network device. All devices on the CCN should use the same time. Only one device on the CCN should broadcast time or problems will occur.

Month of Year (MNTH) — This variable is the current month of the calendar year.

Day of Month (DOM) — This variable is the current day (1 to 31) of the month.

Day of Week (DAY) — This variable is the current day of the week (Monday = 1 through Sunday = 7).

Year (YEAR) — This variable is the current year (for ex- ample, 2005).

Local Time Schedule (SCH.L) — This submenu is used to program the time schedules. There are 8 periods (PER.1 through PER.8). Each time period can be used to set up a local schedule for the unit.

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