Carrier 19XR, XRV specifications After the last digit is changed, the CVC/ICVC goes to the

NOTE: Because a schedule is integral to the chiller control sequence, the chiller will not start until the time and date have been set.

CHANGE CVC/ICVC CONFIGURATION IF NECES- SARY — From the SERVICE table, access the CVC/ICVC CONFIGU-RATION screen. From there, view or modify the CVC/ICVC CCN address, change to English or SI units, and change the password. If there is more than one chiller at the jobsite, change the CVC/ICVC address on each chiller so that each chiller has its own address. Note and record the new address. Change the screen to SI units as required, and change the password if desired.

TO CHANGE THE PASSWORD — The password may be changed from the CVC/ICVC CONFIGURATION screen.

1.Press the MENU and SERVICE softkeys. Enter the current password and highlight CVC/ICVC CONFIGU-

RATION. Press the SELECT softkey. Only the last 5 entries on the CVC/ICVC CONFIG screen can be changed: BUS #, ADDRESS #, BAUD RATE, US IMP/ METRIC, and PASSWORD.

2.Use the ENTER softkey to scroll to PASSWORD. The first digit of the password is highlighted on the screen.

3.To change the digit, press the INCREASE or DECREASE softkey. When the desired digit is seen, press the ENTER softkey.

4.The next digit is highlighted. Change it, and the third and fourth digits in the same way the first was changed.

5.After the last digit is changed, the CVC/ICVC goes to the

BUS parameter. Press the EXIT softkey to leave that screen and return to the SERVICE menu.

Be sure to remember the password. Retain a copy for future reference. Without the password, access to the SERVICE menu will not be possible unless the CVC/ ICVC_PSWD menu on the STATUS screen is accessed by a Carrier representative.

TO CHANGE THE CVC/ICVC DISPLAY FROM ENGLISH TO METRIC UNITS — By default, the CVC/ ICVC displays information in English units. To change to met- ric units, access the CVC/ICVC CONFIGURATION screen:

1.Press the MENU and SERVICE softkeys. Enter the password and highlight CVC/ICVC CONFIGURATION. Press the SELECT softkey.

2.Use the ENTER softkey to scroll to US IMP/METRIC.

3.Press the softkey that corresponds to the units desired for display on the CVC/ICVC (e.g., US or METRIC).

CHANGE LANGUAGE (ICVC Only) — By default, the ICVC displays information in English. To change to another Language, access the ICVC CONFIGURATION screen:

1.Press the MENU and SERVICE softkeys. Enter the password and highlight ICVC CONFIGURATION. Press the SELECT softkey.

2.Use the ENTER softkey to scroll to LID LANGUAGE.

3.Press the INCREASE or DECREASE softkey until the

desired language is displayed. Press ENTER to confirm desired language.

MODIFY CONTROLLER IDENTIFICATION IF NECES- SARY — The CVC/ICVC module address can be changed from the CVC/ICVC CONFIGURATION screen. Change this

address for each chiller if there is more than one chiller at the jobsite. Write the new address on the CVC/ICVC module for future reference.

INPUT EQUIPMENT SERVICE PARAMETERS IF NEC- ESSARY — The EQUIPMENT SERVICE table has six service tables.

Configure SERVICE Tables — Access the SERVICE tables, shown in Table 2, to modify or view job site parameters:

PARAMETER	TABLE
Starter Type	ISM_CONF — Select 0 for full voltage, 1 for
	reduced voltage, or 2 for solid state/variable fre-
	quency drive.
Motor Rated Line	ISM_CONF — Motor rated voltage from chiller
Voltage	information nameplate.
Volt Transformer	ISM_CONF — Enter ratio (reduced to a ratio to
Ratio	1) of power transformer wired to terminal J3 of
	ISM. If no transformer is used enter 1.
Motor Rated	ISM_CONF — Per chiller identification name-
Load Amps	plate data.
Motor Locked	ISM_CONF — Per chiller identification name-
Rotor Trip	plate data. Enter locked rotor delta amps (LR
	AMPS D-).
Starter LRA	ISM_CONF — Enter value from nameplate in
Rating	starter cabinet
	Allen -Bradley this appears as “max locked rotor
	current @100% nom. voltage.”
	Benshaw Starters: value is entered as 9999.
Motor Current	ISM_CONF — Enter ratio (reduced to a ratio to
CT Ratio	1) of current transformers wired to terminal J4 of
	ISM. For Benshaw Inc. RediStart MICRO™
	Starters set to 100.
Ground Fault	ISM_CONF — Enter 0 if no ground fault CTs are
Current	wired to terminal J5 of ISM. Enter 1 if ground
Transformers	fault CTs are used.
Ground Fault	ISM_CONF — Enter ratio (reduced to a ratio to
CT Ratio	1) of ground fault CT.
Single Cycle	ISM_CONF — ENABLE if motor protection
Dropout	required from drop in line voltage within one
	cycle.
Line Frequency	ISM_CONF — Enter YES for 60 Hz or NO for 50
	Hz.
Line Frequency	ISM_CONF — ENABLE if motor
Faulting	protection required for drop in line
	frequency.
Surge Limiting or	OPTIONS — Enter 1 if HGBP is installed.
Hot Gas Bypass
Option
Minimum Load	OPTIONS — Per Chiller Requisition (DT1, DP2)
Points (T1, P1)	if available or per job data — See modify load
	points section.
Full (Maximum)	OPTIONS — Per Chiller Requisition (DT2, DP2)
Load Points (T2, P2)	if available or per job data — See modify load
	points section. For VFD units refer to table
	located in control panel.
Chilled Medium	SETUP1 — Enter water or brine.
Evaporator	SETUP1 — Usually 3° F (1.7° C) below design
Refrigerant	refrigerant temperature.
Trippoint
Evaporator Flow	SETUP1 — Per Chiller Requisition if available or
Delta P Cutout	enter 50% of design pressure drop to 0.5 psi (3.4
	kPa).*
Condenser Flow	SETUP1 — Per Chiller Requisition if available or
Delta P Cutout	enter 50% of design pressure drop to 0.5 psi (3.4
	kPa).*
Diffuser Option	SETUP2 — ENABLE for 4 and 5 size compres-
(Compressors with Split	sor. See model number nomenclature.
Ring Diffusers)
Diffuser Full Span	SETUP2 — Enter diffuser actuator full span mA
mA Rating	rating for 4 and 5 size compressor. Value is
(Compressors with Split	located on label on side of diffuser actuator
Ring Diffusers)	motor.
Motor Rated	RAMP_DEM — Enter value from chiller requisi-
Kilowatts	tion form (product data submittal) if kilowatt ramp
	demand is enabled.

*With variable flow systems this point may be configured to the lower end of the range.

NOTE: Other parameters: Screens are normally left at the default settings; they may be changed by the operator as required. The time and persistence set- tings on the ISM_CONF table can be adjusted to increase or decrease the sen- sitivity to a fault condition. Increasing time or persistence decreases sensitivity. Decreasing time or persistence increases sensitivity to the fault condition.

56