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1. Safety precautions
Fig. 1-1
inside of the service panel.
Joint Pipe accessory .........×1
(2) The Joint Pipe accessory and the pipe which is prepared on site must be brazed
in non-oxidation status.
(3) After the pipes are brazed, connect the Joint Pipe accessory to the Ball Valve
* Never connect the Joint Pipe accessory to the Ball Valve before brazing. Some
parts may be burnt and it may cause refrigerant leakage.
Models
Pipe length
(one way)
Height difference
Number of bends
(one way)
ZM200/250
Max. 100 m
Max. 30 m
Max. 15
M200/250
Max. 70 m
Max. 30 m
Max. 15
• Height difference limitations are binding regardless of which unit, indoor or out-
door, is positioned higher.
Indoor unit
Outdoor unit
R32 is heavier than air—as well as other refrigerants—so tends to accumulate at
safe work environment is required by ensuring appropriate ventilation. If a refrig-
-
ing appropriate ventilation.
• Avoid locations exposed to direct sunlight or other sources of heat.
• Select a location from which noise emitted by the unit will not inconvenience
neighbors.
• Select a location permitting easy wiring and pipe access to the power source and
indoor unit.
-
mulate.
• Note that water may drain from the unit during operation.
• Select a level location that can bear the weight and vibration of the unit.
• Avoid locations where the unit can be covered by snow. In areas where heavy
snow fall is anticipated, special precautions such as raising the installation loca-
tion or installing a hood on the air intake must be taken to prevent the snow from
and a malfunction may result.
• Avoid locations exposed to oil, steam, or sulfuric gas.
• Use the transportation handles of the outdoor unit to transport the unit. If the unit
• Refrigerant pipes connection shall be accessible for maintenance purposes.
Install outdoor units in a place where at least one of the four sides is open, and in
OK
OK
OK
NG
