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Start-Up, Operation, and Maintenance Instructions

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VFD Cooling System Leak Inspection<br />

1. Check for leaks on the refrigerant cooling flange connections<br />

to the VFD enclosure.<br />

2. Check for leaks on all tubing internal to the VFD enclosure,<br />

the tubing flair connection to the VFD module <strong>and</strong><br />

the TXV valve.<br />

3. Verify that the VFD refrigerant cooling system TXV<br />

valve control bulb is securely inserted into the VFD drive<br />

module heat sink.<br />

Power <strong>Up</strong> Verification<br />

1. Inspect control wiring inside the VFD <strong>and</strong> verify the integrity<br />

of the connections between the integrated starter<br />

module (ISM) <strong>and</strong> the VFD module.<br />

2. Close the control power switch in the VFD enclosure.<br />

3. Close the oil pump power switch inside the VFD<br />

enclosure.<br />

4. Verify the VFD disconnect switch is in the open position.<br />

5. Close <strong>and</strong> latch the doors of the VFD enclosure.<br />

6. Apply power to the VFD enclosure. Remove lock outs<br />

<strong>and</strong> close all disconnects.<br />

7. Verify that the CVC/ICVC display powers up <strong>and</strong> goes to<br />

the default screen.<br />

8. Close the VFD disconnect switch.<br />

9. Verify the following actions during the VFD start-up self<br />

test:<br />

The display shows SELF <strong>and</strong> all LEDs are illuminated<br />

for 5 to 6 seconds.<br />

The display reads a 0 after the diagnosis is<br />

complete.<br />

If Err is displayed a fault has been detected.<br />

Perform manual reset by establishing a reset<br />

through the small hole under the VFD Keypad. If<br />

this does not correct the fault contact your Carrier<br />

representative.<br />

If AR with a counting down number is displayed<br />

wait for the number to count to 0 <strong>and</strong> the display<br />

should then revert to a 0. If the counter starts over<br />

at 30 contact Carrier representative.<br />

Configure VFD Parameters — The VFD controller must have<br />

job specific parameters set as defined by the component nameplates<br />

<strong>and</strong> labels. The parameters come preset by the factory,<br />

but must be verified prior to start-up by accessing the PRO-<br />

GRAM MODE of the VFD controller keypad. For information<br />

on how to access the VFD keypad see page 58.<br />

Press the PROGRAM softkey to access the parameter<br />

screen to modify or view the following job specific parameters:.<br />

VFD<br />

PARAMETER<br />

TITLE SETTING<br />

P.004 Maximum Line Frequency selected. Per<br />

Speed Compressor Nameplate.<br />

P.006 Password 107<br />

P.028 Speed 60 for 60 Hz selection <strong>and</strong><br />

Display<br />

Scaling<br />

50 for 50 Hz selection<br />

H.000 Motor<br />

Voltage<br />

Compressor nameplate voltage.<br />

H.001 Frequency Line Frequency selected. Per<br />

Compressor Nameplate.<br />

H.002 Motor<br />

Amps<br />

Compressor nameplate amps.<br />

H.021 Line<br />

Voltage<br />

VFD nameplate voltage.<br />

H.022 Over<br />

Frequency<br />

Limit<br />

69 for 60 Hz selection <strong>and</strong><br />

57 for 50 Hz selection.<br />

59<br />

Configure Chiller Visual Controller Parameter — The chiller<br />

controller must have its job specific parameters set as defined<br />

by the job sheet or installed nameplates. Below are the job specific<br />

parameters that must be set:<br />

To access the ISM_CONF screen:<br />

1. Press ENTER .<br />

2. Press SERVICE .<br />

3. Enter the password 1111.<br />

4. Select ISM (CONFIG STARTER DATA)<br />

5. Scroll down <strong>and</strong> select the ISM_CONF DATA screen to<br />

modify or view the ISM parameters:<br />

DESCRIPTION SETTING<br />

STARTER TYPE<br />

2<br />

(2 = SS/VFD)<br />

MOTOR RATED<br />

VFD Nameplate Voltage.<br />

LINE VOLTAGE<br />

MOTOR RATED<br />

VFD Nameplate Chiller Rated Load<br />

LOAD AMPS<br />

Amps<br />

MOTOR LOCKED Compressor Nameplate<br />

ROTOR TRIP<br />

STARTER LRA RATING 600 for VFD<br />

part #19XVR0414XXX<br />

700 for VFD<br />

part #19XVR0500XXX<br />

900 for VFD<br />

part #19XVR0643XXX<br />

MOTOR CURRENT 163<br />

CT RATIO:1<br />

120 (414A)<br />

3 GRND FAULT CT? NO<br />

(1=NO)<br />

FREQUENCY-60HZ NO for 50 Hz selection<br />

(NO=50)<br />

YES for 60 Hz selection<br />

6. Press to the SAVE softkey to save changes.<br />

7. Press the EXIT softkey to <strong>and</strong> exit the ISM Configuration<br />

Screen.<br />

VFD Enable Configuration — To access the parameters:<br />

1. Press MENU .<br />

2. Press SERVICE .<br />

3. Select EQUIPMENT SERVICE.<br />

4. Scroll down <strong>and</strong> select SETUP2.<br />

5. Verify the following parameters:<br />

VFD OPTION ENABLED<br />

VFD CURRENT LIMIT COMPRESSOR NAMEPLATE AMPS<br />

Configure Surge Parameters<br />

1. Press MENU .<br />

2. Press SERVICE .<br />

3. Select EQUIPMENT SERVICE <strong>and</strong> OPTIONS to verify<br />

the following:<br />

DESCRIPTION SETTINGS<br />

SURGE/HGBP<br />

Surge parameter label<br />

DELTA T1<br />

SURGE/HGBP<br />

Surge parameter label<br />

DELTA P1<br />

SURGE/HGBP<br />

Surge parameter label<br />

DELTA T2<br />

SURGE/HGBP<br />

Surge parameter label<br />

DELTA P2<br />

VFD CONTROL VERFICATION (Non-Running) — In order<br />

to verify <strong>and</strong>, if necessary, tune the speed control signal of the<br />

chiller controller to the VFD (ISM terminal J8 1-2 labeled<br />

4-20 mA OUT VFD) <strong>and</strong> the speed feedback signal from the<br />

VFD to the chiller controller (ISM terminal J6 1-2 labeled<br />

VFD HZ), follow the steps below.<br />

Set TARGET VFD SPEED to 0%.<br />

1. Press MENU<br />

.

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