Carrier XRV, 19XR specifications Set TARGET VFD SPEED to 0%, VFD Cooling System Leak Inspection

VFD Cooling System Leak Inspection

1.Check for leaks on the refrigerant cooling flange connec- tions to the VFD enclosure.

2.Check for leaks on all tubing internal to the VFD enclo- sure, the tubing flair connection to the VFD module and the TXV valve.

3.Verify that the VFD refrigerant cooling system TXV valve control bulb is securely inserted into the VFD drive module heat sink.

Power Up Verification

1.Inspect control wiring inside the VFD and verify the in- tegrity of the connections between the integrated starter module (ISM) and the VFD module.

2.Close the control power switch in the VFD enclosure.

3.Close the oil pump power switch inside the VFD enclosure.

4.Verify the VFD disconnect switch is in the open position.

5.Close and latch the doors of the VFD enclosure.

6.Apply power to the VFD enclosure. Remove lock outs and close all disconnects.

7.Verify that the CVC/ICVC display powers up and goes to the default screen.

8.Close the VFD disconnect switch.

9.Verify the following actions during the VFD start-up self test:

•The display shows SELF and all LEDs are illumi- nated for 5 to 6 seconds.

•The display reads a 0 after the diagnosis is complete.

•If Err is displayed a fault has been detected. Perform manual reset by establishing a reset through the small hole under the VFD Keypad. If this does not correct the fault contact your Carrier representative.

•If AR with a counting down number is displayed wait for the number to count to 0 and the display should then revert to a 0. If the counter starts over at 30 contact Carrier representative.

Configure VFD Parameters — The VFD controller must have job specific parameters set as defined by the component name- plates and labels. The parameters come preset by the factory, but must be verified prior to start-up by accessing the PRO- GRAM MODE of the VFD controller keypad. For information on how to access the VFD keypad see page 58.

Press the PROGRAM softkey to access the parameter screen to modify or view the following job specific parameters:.

VFD	TITLE	SETTING
PARAMETER
P.004	Maximum	Line Frequency selected. Per
	Speed	Compressor Nameplate.
P.006	Password	107
P.028	Speed	60 for 60 Hz selection and
	Display	50 for 50 Hz selection
	Scaling
H.000	Motor	Compressor nameplate voltage.
	Voltage
H.001	Frequency	Line Frequency selected. Per
		Compressor Nameplate.
H.002	Motor	Compressor nameplate amps.
	Amps
H.021	Line	VFD nameplate voltage.
	Voltage
H.022	Over	69 for 60 Hz selection and
	Frequency	57 for 50 Hz selection.
	Limit

Configure Chiller Visual Controller Parameter — The chiller controller must have its job specific parameters set as defined by the job sheet or installed nameplates. Below are the job spe- cific parameters that must be set:

To access the ISM_CONF screen:

1.Press ENTER .

2.Press SERVICE .

3.Enter the password 1111.

4.Select ISM (CONFIG STARTER DATA)

5.Scroll down and select the ISM_CONF DATA screen to modify or view the ISM parameters:

DESCRIPTION	SETTING
STARTER TYPE	2
(2 = SS/VFD)
MOTOR RATED	VFD Nameplate Voltage.
LINE VOLTAGE
MOTOR RATED	VFD Nameplate Chiller Rated Load
LOAD AMPS	Amps
MOTOR LOCKED	Compressor Nameplate
ROTOR TRIP
STARTER LRA RATING	600 for VFD
	part #19XVR0414XXX
	700 for VFD
	part #19XVR0500XXX
	900 for VFD
	part #19XVR0643XXX
MOTOR CURRENT	163
CT RATIO:1	120 (414A)
3 GRND FAULT CT?	NO
(1=NO)
FREQUENCY-60HZ	NO for 50 Hz selection
(NO=50)	YES for 60 Hz selection

6.Press to the SAVE softkey to save changes.

7.Press the EXIT softkey to and exit the ISM Configura- tion Screen.

VFD Enable Configuration — To access the parameters:

1.Press MENU .

2.Press SERVICE .

3.Select EQUIPMENT SERVICE.

4.Scroll down and select SETUP2.

5.Verify the following parameters:

VFD OPTION	ENABLED
VFD CURRENT LIMIT	COMPRESSOR NAMEPLATE AMPS

Configure Surge Parameters

1.Press MENU .

2.Press SERVICE .

3.Select EQUIPMENT SERVICE and OPTIONS to verify the following:

DESCRIPTION	SETTINGS
SURGE/HGBP	Surge parameter label
DELTA T1
SURGE/HGBP	Surge parameter label
DELTA P1
SURGE/HGBP	Surge parameter label
DELTA T2
SURGE/HGBP	Surge parameter label
DELTA P2

VFD CONTROL VERFICATION (Non-Running) — In order to verify and, if necessary, tune the speed control signal of the chiller controller to the VFD (ISM terminal J8 1-2 labeled 4-20 mA OUT VFD) and the speed feedback signal from the VFD to the chiller controller (ISM terminal J6 1-2 labeled VFD HZ), follow the steps below.

Set TARGET VFD SPEED to 0%.

1. Press MENU .

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