4
2. Before Installation
2.1 Necessary Tools and Instrument List for Installation
No.
Tool
No.
Tool
1
Handsaw
12
Wrench
2
Phillips Screwdriver, Slotted Screwdriver
13
Scale
3
Vacuum Pump
14
Charging Cylinder
4
Refrigerant Gas Hose
15
Gauge Manifold
5
Megohmmeter
16
Wire Cutters
6
Copper Pipe Bender
17
Gas Leak Detector
7
Manual Water Pump (for Indoor Unit)
18
Leveller
8
Pliers
19
Crimper for Solderless Terminals
9
Pipe Cutter
20
Hoist (for Indoor Unit)
10
Brazing Kit
21
Ammeter
11
Hexagon Wrench
22
Voltage Meter
It is recommended to use specially designated tools for handling R410A refrigerant.
◆
◆
◆
◆
Do not install the indoor unit, outdoor unit, remote control switch and cable within approximately 3 meters
from strong electromagnetic wave radiators such as medical equipment.
Supply electrical power to the system to energize the oil heater for 12 hours before startup after a long
shutdown.
Make sure that the outdoor unit is not covered with snow or ice, before operation.
In some cases, the packaged air conditioner may not be operated normally under the following cases.
*
In case that electrical power for the packaged air conditioner is supplied from the same power
transformer as the device*.
*
In case that the power source wires for the device* and the packaged air conditioner are located close to
each other.
Device*: (Ex) Lift, container crane, rectifier for electric railway, inverter power device, arc furnace, electric
furnace, large-sized induction motor and large-sized switch. It consumes a large quantity of electrical
power.
Regarding the cases mentioned above, surge voltage may be inducted into the power supply cables
for the packaged air conditioning due to a rapid change in power consumption of the device and an
activation of a switch.
Check field regulations and standards before performing electrical work in order to protect the power
supply for the new air conditioning unit.
NOTE
◆
It is recommended that the room will be ventilated every 3 to 4 hours.
◆
The heating capacity of the heat pump unit is decreased according to the outdoor air temperature.
Therefore, it is recommended that auxiliary heating equipment be used in the field when the units is
installed in a low temperature region.