Related Manuals for United CoolAir VFD
Summary of Contents for United CoolAir VFD
- Page 1 Variable Frequency Drive Field Installation Installation, Operation and Maintenance Manual Effective December 2018 ***Interactive PDF***...
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Page 2: Table Of Contents
Programming ���������������������������������������������������������������������������������������������������������� 4 Voltage Unbalance ������������������������������������������������������������������������������������������������� 5 Field Provided VFD / Field Installed ����������������������������������������������������������������������� 6 Field Provided VFD / Field Installed (Continued) ��������������������������������������������������� 7 Static Pressure Transducer ������������������������������������������������������������������������������ 7 Field or Factory Provided/Field Installed ���������������������������������������������������������� 7 Field Provided VFD / Field Installed (Continued) ��������������������������������������������� 8 Factory Provided VFD / Field Installed �������������������������������������������������������������������... -
Page 3: Important Notice
Installation, Operation and Maintenance Manual Field Installed Variable Frequency Drives (VFD’s Important Notice This manual is the property of the owner. Please be sure to leave it with the owner when you leave the job. Use of Symbols This publication includes warnings, cautions and information icons that point out safety related issues or conditions as well as other pertinent information relative to a safe installation, service or maintenance situation�... -
Page 4: General Information
If damage occurred during transit, contact the freight carrier immediately and file a damage claim report. ELECTRICAL HAZARD Inspect the unit data plate to verify the VFD is the appropriate one for the application� (Voltage, VFD and Evaporator Motor Only a qualified licensed electrician or... -
Page 5: Voltage Unbalance
It should be noted that the inclusion of a variable frequency balanced between phases, but if the level of the unbalance drive (VFD) with an unbalanced power supply may result in becomes excessive it will create problems for not only nuisance tripping and 3rd harmonic currents�... -
Page 6: Field Provided Vfd / Field Installed
NEC or applicable local codes� 6. Attach the appropriate size wire to the power block (motor side) and connect them to the terminals on the VFD marked for the Motor (U, V & W) (Refer to Figure 2A or 2B)� INFORMATION Damage to VFD may occur if not correctly wired�... -
Page 7: Field Provided Vfd / Field Installed (Continued)
(Refer to Figure 3) repair or maintenance� Failure to follow all 9. The terminal markings on the VFD can vary from one electrical safety precautions and industry manufacturer to another� Refer to the VFD manufactur accepted practices when exposed to er instructions for the proper terminal connections�... -
Page 8: Field Provided Vfd/Field Installed (Continued)
Installation, Operation and Maintenance Manual Field Installed Variable Frequency Drives (VFD’s Field Provided VFD/Field Installed (Continued) Figure 2A - After VFD Installed Motor w/ Overload Figure 2B - After VFD Installed Motor w/o Overload Subject to change without notice. 120.7-IM (1218) -
Page 9: Factory Provided Vfd/Field Installed
Damage to VFD may occur if not correctly wired� 7. Attach the appropriate size wire to the line side power block and connect them to the terminals on the VFD marked for Line Voltage (L1, L2, & L3) (Refer to Figure 4A or 4B)�... -
Page 10: Field Provided Vfd/Field Installed (Continued)
Installation, Operation and Maintenance Manual Field Installed Variable Frequency Drives (VFD’s Field Provided VFD/Field Installed (Continued) Figure 4A - After VFD Installed Motor w/ Overload Figure 4B - After VFD Installed Motor w/o Overload Subject to change without notice. 120.7-IM (1218) - Page 11 Installation, Operation and Maintenance Manual Field Installed Variable Frequency Drives (VFD’s NOTES: Subject to change without notice. 120.7-IM (1218)
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Page 12: Limited Warranty
Engineered to Order LIMITED WARRANTY Authorized Distributor: United CoolAir Units are backed by a 1 year limited warranty on parts and a 5 year limited warranty on the compressor (labor not included). Maintenance items such as filters and belts are excluded under this limited warranty�...