68 PB
INSTALLATION
Test Run
Max. Running Current (A): REFER TO NAMEPLATE
Note：
• Follow local codes/regulations when selecting wire. All of the above are minimum wire sizes.
• Transmission (SI) cable length is longer than 262ft. (80m), a larger wire size should be selected.
• Install mains switch and ELB for each system separately. Select the high response type ELB that is activated
within 0.1second. Recommended capacity to see outdoor equipment switch capacity.
Test run should be performed after refrigerant piping, drain, wiring, etc. have been finished.
This heat pump air conditioner comes equipped with a crankcase heater. Ensure that the main power supply
has been turned ON for more than 6 hours ahead of power on, doing so will ensure compressor oil is fluid.
Failure to do so may cause damage to the compressor.
Do not operate the system until all the check points have been cleared.
• Ensure that the stop valves of the outdoor unit are fully opened.
• Ensure that all wires have been fully connected and torqued.
• Ensure that the electrical resistance is more than 2MΩ by measuring the resistance between ground and the
terminal of the electrical parts. If not, do not operate the system until the electrical leakage is found and
repaired.
Test run function identification
Operate the thermostat to turn ON the equipment, then proceed test run.
Pay attention to the following items while the system is running.
Do not touch any of the parts by hand at the discharge gas side. Compressor body and pipes at the discharge
side will reach temperatures in excess of 194°F (90°C).
Turn off the power after the test run is finished.
Installation of the equipment is complete after concluding the test run. For additional information, contact the
local technical service center for further information.
Test run
CAUTION
13
Electrical Data
24k
36k
48k/60k
208/230V-/60Hz
208/230V-/60Hz
208/230V-/60Hz
25
35
50
30
30
30
3x12AWG
3x10AWG
3x8AWG
5x16AWG
5x16AWG
5x16AWG
Model
(Capacity)
Power Supply
Rated Current
(A)
Nominal Sensitive
Current (mA)
ELB (Electrical Leakage Breaker)
Power Source
Cable Size
Transmitting
Cable Size
If the outdoor unit has been exposed to temperatures below 25F for more than 6 hours, it will
need to be powered on for at least 6 hours to allow crankcase heater to warm the oil before
startup.
NOTICE:
The TXV must be able to open to the maximum angle while running in heating mode and be adjusted to 4-6˚ F superheat.
In a non matched unit ensure that the TXV is of the proper type.
Refer to TXV Replacement
COMPRESSOR DAMAGE MAY OCCUR
DURING COLD - START UP
CAUTION
If the outdoor unit has been exposed
to temperatures below 32°F for more
than 6 hours, the unit will need to be energized
for at least 6 hours to allow the
crankcase heater to warm the oil before startup.
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