Crankcase Heat; Pre-Start Check; Startup; Operation - Rheem RJNL-A036CK Installation Instructions Manual

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XIV. CRANKCASE HEAT (OPTIONAL)
Crankcase heat is not required on scroll type compressors, but may be necessary for
difficult starting situations.
XV. PRE-START CHECK
1. Is unit properly located and slightly slanted toward indoor condensate drain?
2. Is ductwork insulated, weatherproofed, with proper spacing to combustible materi-
als?
3. Is air free to travel to and from outdoor coil? (See Figure 9.)
4. Is the wiring correct, tight, and according to unit wiring diagram?
5. Is unit grounded?
6. Are field supplied air filters in place and clean?
7. Do the outdoor fan and indoor blower turn freely without rubbing, and are they tight
on the motor shafts?
8. Is unit elevated to allow for outdoor coil condensate drainage during heating opera-
tion and defrost?
XVI. STARTUP
1. Turn thermostat to "OFF," turn "on" power supply at disconnect switch.
2. Turn temperature setting as high as it will go.
3. Turn fan switch to "ON."
4. Indoor blower should run. Be sure it is running in the right direction.
5. Turn fan switch to "AUTO." Turn system switch to "COOL" and turn temperature set-
ting below room temperature. Unit should run in cooling mode.
6. Is outdoor fan operating correctly in the right direction?
7. Is compressor running correctly.
8. Turn thermostat system switch to "HEAT." Unit should stop. Wait 5 minutes, then
raise temperature setting to above room temperature. Unit should run in heating
mode and after about 30 to 50 seconds auxiliary heaters, if installed, should come
on.
9. Check the refrigerant charge using the instructions located on compressor access
panel cover. Replace service port caps. Service port cores are for system access
only and will leak if not tightly capped.
10. Turn thermostat system switch to proper mode "HEAT" or "COOL" and set thermo-
stat to proper temperature setting. Record the following after the unit has run some
time.
A. Operating Mode _______________________________
B. Discharge Pressure (High) ___________________PSIG
C. Vapor Pressure at Compressor (Low) __________PSIG
D. Vapor Line Temperature at Compressor __________°F.
E. Indoor Dry Bulb______________________________°F.
F. Indoor Wet Bulb _____________________________°F.
G. Outdoor Dry Bulb ____________________________°F.
H. Outdoor Wet Bulb ____________________________°F.
I. Voltage at Contactor ________________________Volts
J. Current at Contactor _______________________Amps
K. Model Number_________________________________
L. Serial Number _________________________________
M.Location______________________________________
N. Owner _______________________________________
O. Date_________________________________________
11. Adjust discharge air grilles and balance system.
12. Check ducts for condensation and air leaks.
13. Check unit for tubing and sheet metal rattles.
14. Instruct the owner on operation and maintenance.
15. Leave "INSTALLATION" and "USE AND CARE" instructions with owner
XVII. OPERATION
Most single phase units are operated PSC (no start relay or start capacitor). It is impor-
tant that such systems be off for a minimum of 5 minutes before restarting to allow
equalization of pressures. The thermostat should not be moved to cycle unit without
waiting five minutes. To do so may cause the compressor to stop on an automatic open
overload device or blow a fuse. Poor electrical service can cause nuisance tripping in
overloads or blow fuses.