8
The following guidelines should be used to select a suitable location for the unit lifting:
1. Determine the approximate center of gravity for lifting safety before lifting the unit.
2. Always test-lift the unit to determine the exact unit balance and stability before
hoisting it to the installation location.
3. Ensure that all rigging and lifting equipment is operated by qualified personnel.
4. Ensure the rigging equipment and material have the required capacity for the job and
that all items are in good condition.
5. Ensure the lifting straps, cables, or chains used, clear the sides and corner edges of the
unit. If not damage to the unit may occur.
4.0 ACCOUSTICAL CONSIDERATION
With any mechanical system, a certain amount of vibration and noise is generated. To ensure a successful
installation of these units, factory has provided the internal vibration isolators for compressors.
If additional vibration isolation is desired, neoprene is recommended under 4 corners of unit.
Care must be exercised to isolate the unit and piping from walls and ceiling.
Besides vibration, which is transmitted by conduction, radiated noise and fan noise must also be addressed.
Compressors, and etc., all generate noise and can be radiated to the occupied space.
The most common approach to reducing this possibility is to locate the units in least sensitive areas. This could be
near stairs, elevators or lavatories.
Good acoustical practices should be employed when designing the wall between the machine room and the occupied
space. All openings around doors should be sealed. The return air opening must be acoustically treated.
Noise will also be carried through the fan and supply ductwork to the occupied space. When the sound attenuation
package is required, you should consider installing sound attenuation in the supply ductwork.
Summary of Contents for UCQ0060
Page 13: ...13 5 1 UNIT DIMENSION 5 1 1 Outline UCQ60A D L...
Page 14: ...14 5 1 2 Outline UCQ90A D L...
Page 15: ...15 5 1 3 Outline UCQ140A D L...
Page 16: ...16 5 1 4 Outline UCQ180A D L...
Page 17: ...17 5 1 5 Outline UCQ240A L...
Page 18: ...18 5 1 6 Outline UCQ280A L...
Page 19: ...19 5 1 7 Outline UCQ320A L...
Page 20: ...20 5 1 8 Outline UCQ360A L...
Page 21: ...21 5 1 9 Outline UCQ400 520A L...
Page 22: ...22 5 1 10 Outline UCQ570A L...
Page 23: ...23 5 1 11 Outline UCQ710A L...
Page 24: ...24 5 1 12 Outline UCQ870A L...
Page 25: ...25 5 1 13 Outline UCQ940A L...
Page 29: ...29 5 6 Fan Curve 5 6 1 Fan Curve AT 9 9 Model UCQ60 UCQ90...
Page 30: ...30 5 6 2 Fan Curve AT 15 15 Model UCQ140 UCQ180 UCQ240...
Page 31: ...31 5 6 3 Fan Curve AT 18 18 Model UCQ280...
Page 32: ...32 5 6 4 Fan Curve ADH 450 Model UCQ320 UCQ360 UCQ710...
Page 33: ...33 5 6 5 Fan Curve ADH 500 Model UCQ400 UCQ520 UCQ870 UCQ940...
Page 34: ...34 5 6 6 Fan Curve ADH 560 Model UCQ570...
Page 37: ...37 6 1 WIRING DIAGRAM 6 1 1 Wiring Diagram UCQ60AE UCQ90AE UCQ140AE UCQ180AE...
Page 38: ...38 6 1 2 Wiring Diagram UCQ240AE UCQ280AE...
Page 39: ...39 6 1 3 Wiring Diagram UCQ320AE UCQ360AE...
Page 40: ...40 6 1 4 Wiring Diagram UCQ400AE UCQ520AE...
Page 41: ...41 6 1 5 Wiring Diagram UCQ570AE...
Page 42: ...42 6 1 6 Wiring Diagram UCQ710AE UCQ870AE...