Daikin FTKE35BVMA [179/268] How to use reducers
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Daikin FTKE35BVMA [179/268] How to use reducers

Daikin 3MXD68BVMA [179/268] How to use reducers
Outdoor Units ED12-321A
174 Installation Manual
How to Use Reducers
No. 1
No. 4
Flare nut (for φ15.9)
Inter-unit piping
Connection port
of outdoor unit
Be sure to attach
the gasket.
No. 7
No. 8
Flare nut (for φ9.5)
Be sure to attach
the gasket.
No. 5
No. 2
Flare nut (for φ12.7)
Be sure to attach
the gasket.
No. 6
No. 3
Flare nut (for φ9.5)
Be sure to attach
the gasket.
● 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
overtightening the flare nut.
Use the reducers supplied with the unit as described below.
No.1
φ15.9
→ φ12.7
No.2
φ12.7
→ φ9.5
No.3
φ9.5
→ φ6.4
No.8
φ15.9
→ φ9.5
No.4
φ15.9
→ φ12.7
No.5
φ12.7
→ φ9.5
No.6
φ9.5
→ φ6.4
Gasket (1) Gasket (2) Reduce and gasket
No.7
φ15.9
→ φ9.5
1. Connecting a pipe of φ12.7 to a gas pipe connection port for φ15.9:
2. Connecting a pipe of φ9.5 to a gas pipe connection port for φ15.9:
3. Connecting a pipe of φ9.5 to a gas pipe connection port for φ12.7:
4. Connecting a pipe of φ6.4 to a liquid pipe connection port for φ9.5:
Flare nut tightening torque
Flare nut for φ6.4
14.2–17.2N·m
(144–175kgf·cm)
Flare nut for φ9.5
32.7–39.9N·m
(333–407kgf·cm)
Flare nut for φ12.7
49.5–60.3N·m
(505–615kgf·cm)
Flare nut for φ15.9
61.8–75.4N·m
(630–769kgf·cm)

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