LIQUID |
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SERVICE |
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VALVE | 0A |
CONNECTOR
TUBE
A95509
Fig. 7—Filter Drier with Sweat Adapter Tube
and Liquid Tube
G. FINAL TUBING CHECK
IMPORTANT: Check to be certain factory tubing on both indoor and outdoor unit has not shifted during shipment. Ensure tubes are not rubbing against each other or any sheet metal. Pay close attention to feeder tubes, making sure wire ties on feeder tubes are secure and tight.
VII. MAKE ELECTRICAL CONNECTIONS
WARNING: To avoid personal injury or death, do not supply power to unit with compressor terminal box cover removed.
Be sure field wiring complies with local and national fire, safety, and electrical codes, and voltage to system is within limits shown on unit rating plate. Contact local power company for correction of improper voltage. See unit rating plate for recommended circuit protection device.
NOTE: Operation of unit on improper line voltage constitutes abuse and could affect unit reliability. See unit rating plate. Do not install unit in system where voltage may fluctuate above or below permissible limits.
NOTE: Use copper wire only between disconnect switch and unit.
NOTE: Install branch circuit disconnect of adequate size per NEC to handle unit starting current. Locate disconnect within sight from and readily accessible from unit, per Section
A. ROUTE GROUND AND POWER WIRES
Remove access panel to gain access to unit wiring. Extend wires from disconnect through power wiring hole provided and into unit control box. Size wires per NEC but not smaller than minimum wire size shown in Product Data Sheet.
WARNING: The unit cabinet must have as uninter- rupted or unbroken ground to minimize personal injury if an electrical fault should occur. The ground may consist of electrical wire or metal conduit when installed in accordance with existing electrical codes. Failure to follow this warning can result in an electric shock, fire, or death.
B. CONNECT GROUND AND POWER WIRES
Connect ground wire to ground connection in control box for safety. Connect power wiring to leads provided as shown in Fig. 10.
5000 |
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4500 |
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4000 |
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| LEAK IN | |
3500 |
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| SYSTEM | ||
3000 |
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2500 |
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MICRONS2000 |
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| VACUUM TIGHT | |
1500 |
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| TOO WET | ||
1000 |
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| TIGHT | ||
500 |
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| DRY SYSTEM | ||
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0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
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| MINUTES |
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| A95424 | |
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Fig. 8—Deep Vacuum Graph
EVACUATE
BREAK VACUUM WITH DRY NITROGEN
WAIT
EVACUATE
BREAK VACUUM WITH DRY NITROGEN
WAIT
EVACUATE
CHECK FOR TIGHT, DRY SYSTEM (IF IT HOLDS DEEP VACUUM)
CHARGE SYSTEM
A95425
Fig. 9—Triple Evacuation Method
C. CONNECT CONTROL WIRING
Route 24v control wires through control wiring grommet and connect to leads provided in control box. (See Fig. 11.)
Use No. 18 AWG
All wiring must be NEC Class 1 and must be separated from incoming power leads.
The outdoor unit requires a minimum of 27va, 24vac control power.
IMPORTANT: Check factory wiring and wire connections to ensure terminations are secured properly. Check wire routing to ensure wires are not in contact with tubing, sheet metal, etc.
