Pre-Start-Up - Payne PA3Z Installation Manual

WARNING: FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD
Failure to observe the following warnings could result in serious injury, death and/or property damage:
1. Follow recognized safety practices and wear protective goggles when checking or servicing refrigerant 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 are disconnected and lockout tag is installed.
4. Relieve all pressure from both high- and low-pressure sides of the system before touching or disturbing anything inside
terminal box if refrigerant leak is suspected around compressor terminals. Use accepted methods to recover refrigerant.
5. Never attempt to repair soldered connection while refrigerant system is under pressure.
6. Do not use torch to remove any component. System contains oil and refrigerant under pressure. To remove a component,
wear protective goggles and proceed as follows:
a. Shut off electrical power to unit and install lockout tag.
b. Relieve all refrigerant from system using both high- and low-pressure ports. Use accepted methods to recover
refrigerant.
c. Cut component connecting tubing with tubing cutter and remove component from unit.
d. Carefully unsweat remaining tubing stubs when necessary. Oil can ignite when exposed to torch flame.
Use the Start-Up Checklist supplied at the end of this book and proceed as follows to inspect and prepare the unit for initial start-up:
1. Remove all access panels.
2. Read and follow instructions on all DANGER, WARNING, CAUTION, and INFORMATION labels attached to, or shipped with unit.
Make the following inspections:
a. Inspect for shipping and handling damages such as broken lines, loose parts, disconnected wires, etc.
b. Inspect for oil at all refrigerant tubing connections and on unit base. Detecting oil generally indicates a refrigerant leak. Leak-test all
refrigerant tubing connections using electronic leak detector, or liquid-soap solution. If a refrigerant leak is detected, see following Check
for Refrigerant Leaks section.
c. Inspect all field- and factory-wiring connections. Be sure that connections are completed and tight. Ensure wires do not contact
refrigerant tubing or sheet metal edges.
d. Inspect coil fins. If damaged during shipping and handling, carefully straighten fins with a fin comb.
3. Verify the following conditions:
a. Make sure that outdoor-fan blade is correctly positioned in fan orifice. Top edge of blade should be 3.125 in. down from outdoor coil
outlet grille (size 024–048, See Fig. 12) or hub should be 0.708-in. away from motor end bell (size 060, See Fig. 13). See Outdoor Fan
Adjustment section.
b. Make sure that air filter is in place.
c. Make sure that condensate drain trap is filled with water to ensure proper drainage.
HIGH-VOLTAGE POWER
WIRING ENTRY HOLE
Fig. 7—Unit Electrical Connection

PRE-START-UP

—9—
LOW-VOLTAGE WIRING
ENTRY HOLE
A05198