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Installation
• Install the unit horizontally.
• The unit may be installed directly on a concrete verandah or a solid place if drainage is good.
• If the vibration may possibly be transmitted to the building, use a vibration-proof rubber (field supply).
1.
Connections (connection port)
Install the indoor unit according to the table below, which shows the relationship between the class of indoor unit and the
corresponding port.
The total indoor unit class that can be connected to this unit:
Heat pump type:
Port
A
B
: Use a reducer to connect pipes.
: Optional accessory
Refer to "How to Use Reducers" for information on reducer numbers and their shapes.
How to Use Reducers
No.1
Ø12.7→ Ø9.5
Gasket (1)
Use the reducers supplied with the unit as described below.
• Connecting a pipe of Ø9.5 to a gas pipe connection port for Ø12.7:
Connection port of outdoor unit
• When using the reducer packing shown above, be careful not to overtighten
the nut, or the smaller pipe may be damaged. (about 2/3 - 1 the normal torque)
• Apply a coat of refrigeration oil to the threaded connection port of the outdoor
unit where the flare nut comes in.
• Use an appropriate wrench to avoid damaging the connection thread by over-
tightening the flare nut.
Precautions on Installation
• Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise after installed.
• In accordance with the foundation drawing in fix the unit securely by means of the foundation bolts. (Prepare 4 sets of M8 or M10
foundation bolts, nuts and washers each which are available on the market.)
• It is best to screw in the foundation bolts until their ends are 20mm from the foundation surface.
English
2AMXM40M*
Up to 6.0kW
2MXM40M*
2AMXM40M*
2MXM40M*
15 ,
20 ,
25 , 35
15 ,
20 , 25 , 35
No.2
Ø12.7→ Ø9.5
Gasket (2)
Be sure to attach the gasket.
2AMXM50M*
2MXM50M*
No. 2
No. 1
Up to 8.5kW
2AMXM50M*
2MXM50M*
15 ,
20 ,
25 , 35 42
,
15 ,
20 ,
25 , 35 , 42 , 50
Inter-unit piping
Flare nut (for Ø12.7)
Flare nut tightening torque
Flare nut for
Ø12.7
49.5–60.3N·m
(505–615kg-
f·cm)
5
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