Fig. 8 Ð Field Control Wiring Raceway
(576B Unit Shown)
Table 5 Ð American/European Wire Conversions
| AMERICAN |
| EUROPEAN | |
| Industry |
| American | Industry |
|
| Conversion | Standard | |
Standard Size |
| |||
| (mm2) | Size (mm2) | ||
| 18 AWG |
| 0.82 | 1.0 |
| 16 AWG |
| 1.30 | 1.5 |
| 14 AWG |
| 2.08 | 2.5 |
| 12 AWG |
| 3.30 | 4.0 |
| 10 AWG |
| 5.25 | 6.0 |
| 8 AWG |
| 6.36 | 10.0 |
| 6 AWG |
| 13.29 | 16.0 |
| 4 AWG |
| 21.14 | 25.0 |
| 3 AWG |
| 26.65 | Ð |
| 2 AWG |
| 33.61 | 35.0 |
| 1 AWG |
| 42.39 | 50.0 |
| 1/0 AWG |
| 53.49 | Ð |
| 2/0 AWG |
| 67.42 | 70.0 |
| 3/0 AWG |
| 85.00 | 95.0 |
| 4/0 AWG |
| 107.19 | 120.0 |
| 250 kcmil |
| 126.64 | 150.0 |
| 300 kcmil |
| 151.97 | Ð |
| 350 kcmil |
| 177.90 | 185.0 |
| 400 kcmil |
| 202.63 | 240.0 |
| 500 kcmil |
| 253.29 | 300.0 |
| 600 kcmil |
| 303.95 | Ð |
| LEGEND |
|
| |
AWG | Ð American Wire Gage |
| ||
kcmil | Ð Thousand Circular Mils |
| ||
VI. ACCESSORY INSTALLATION
At this time any required accessories should be installed on the unit. Refer to Table 6 for available accessories. Control wiring information is provided in the unit wiring book.
Table 6 Ð Accessory List
ACCESSORY
Gage Panel
Weatherprobe™ II Low Ambient Kit
Hail Guard Package (072)
Hail Guard Package (090,102,120)
Thermostats
Subbase
PRE-START-UP
WARNING: Failure to observe the following warn- ings could result in serious personal injury:
1.Follow recognized safety practices and wear pro- tective goggles when checking or servicing refrig- erant system.
2.Do not operate compressor or provide any electric power to unit unless compressor terminal cover is in place and secured.
3.Do not remove compressor terminal cover until all electrical sources have been disconnected.
4.If refrigerant leak is suspected around compres- sor terminals, recover refrigerant whenever pos- sible and relieve all pressure from system before touching or disturbing anything inside terminal box.
5.Never attempt to repair soldered connection while refrigerant system is under pressure.
6.Do not use torch to remove any component. Sys- tem contains oil and refrigerant under pressure. To remove a component, wear protective goggles and proceed as follows:
a.Shut off electrical power to unit.
b.Recover refrigerant. Relieve all pressure from system.
c.Cut
d.Carefully unsweat remaining tubing stubs when necessary. Oil can ignite when exposed to torch ¯ame.
Proceed as follows to inspect and prepare the unit for initial
1.Field electrical power source must agree with unit name- plate rating.
2.Check voltage imbalance as shown in Table 4, Note 2.
3.Check that all internal wiring connections are tight and that all barriers, covers, and panels are in place.
4.Ensure all service valves are open. On 576B units, be sure all compressor service valves are backseated.
5.Verify that compressor holddown bolts have been loos- ened and that ¯at/snubber washers can be rotated by applying ®nger pressure (snug, but not tight).
6.On 569C and 576B units, verify compressor crankcase heater is securely in place. Crankcase heater must op- erate for a least 24 hours before
7.Note that compressor oil level is visible in the sight glass (576B units only).
8.Check for leaks in refrigerant system by using soap bubbles and/or electronic leak detector.
9.Check that liquid line solenoid valve is located at evapo- rator coil as shown in Filter Drier and Moisture Indi- cator section, page 6.
10.Check that both outdoor and indoor units are properly mounted in accordance with installation instructions and applicable codes.