Hitachi RUA-NP10ATS, Instruction Manual

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11
TEST RUNNING
6. TEST RUNNING
6.1 Final Installation Check
Inspect the installation work according to all documents and drawings. Table 2 shows the minimum
checkpoints.
Table 2. Installation Work Check List
6.2 Preparation
Tools and Instruments
–
High and Low Pressure
Compound Gauge(s), An Electric Tester, and
General Tools.
Preparation
–
Confirm that the system switch on
the room thermostat is at the OFF position.
Pressure Gauges
–
Equip high and low pressure
compound gauges according to Fig. 11.
Thermostat
–
Set the thermostat at a lower
temperature than the room temperature.
6.3 Test Running
Test running should be performed as follows,
when the unit is wired according to the wiring label.
1. Set the operation switch to the FAN position
and the system switch to the ON position, and
the evaporator fan will start immediately.
Check the rotation direction, fan speed and air
flow quantity through the evaporator.
2. Set the operation switch to the COOL position,
and the compressor and condenser fans will
start 3 minutes after this operation (refer to Fig.
9).
3. After system operation has become stabilized,
check the suction and discharge pressures on
the compound gauges. Normal operating
pressures are shown in Fig. 10.
4. Check the operating voltage, phase balance
and operating current.
5. Check to ensure that the thermostat functions
properly.
6. Check to ensure that the control and protective
devices function properly (refer to Table 3).
INSTALLATION WORK CHECK LIST
1.Is the unit solidly mounted and leveled?
2.Is the installation location adequate?
Space for Condenser Air Flow
Space for Maintenance Work
Noise and Vibration
Sunshine and Rainfall
Appearance
3.Is the ducting work adequate?
Filter Soundproofing
Size and Length Insulation
4.Are the condensate drain lines properly arranged?
Trap Drain Ditch
5.Is the electrical wiring system adequate?
Wire Size Tightened Connections
Switch Size Operation Control Devices
Fuse Size Safety Devices
Voltage Hz
6. Have the shipping washers been removed from the rubber-mounted compressor?