2MXS18NMVJUA Installation Manual

6■English
How to Use Reducers
• Use the reducers supplied with the unit as described below.
(1) Connecting a pipe of φ1/2 inch (12.7mm) to a gas pipe connection port for φ5/8 inch (15.9mm) :
(2) Connecting a pipe of φ3/8 inch (9.5mm) to a gas pipe connection port for φ5/8 inch (15.9mm) :
(3) Connecting a pipe of φ3/8 inch (9.5mm) to a gas pipe connection port for φ1/2 inch (12.7mm) :
No.1
φ5/8”
φ1/2”
No.2
φ1/2”
φ3/8”
No.3
φ5/8”
φ1/2”
No.4
φ1/2”
φ3/8”
No.5
φ5/8”
φ3/8”
No.6
φ5/8”
φ3/8”
Gasket (1) Gasket (2) Reduce and gasket
No. 1
No. 3
Flare nut (for φ5/8 inch (15.9mm))
Inter-unit piping
Connection port of outdoor unit
Connection port of outdoor unit
Connection port of outdoor unit
Be sure to attach
the gasket.
No. 5
No. 6
Flare nut (for φ3/8 inch (9.5mm))
Be sure to attach the gasket.
No. 4
No. 2
Flare nut (for φ1/2 inch (12.7mm))
Be sure to attach the gasket.
Flare nut tightening torque
φ3/8 inch (9.5mm)
φ1/2 inch (12.7mm)
φ5/8 inch (15.9mm)
24-1/8 – 29-1/2ft • Ibf (32.7-39.9N • m)
36-1/2 – 44-1/2ft • lbf (49.5-60.3N • m)
45-5/8 – 55-5/8ft • lbf (61.8-75.4N • m)
• When using the reducer packing shown above, be careful not to
overtighten the nut, or the smaller pipe may be damaged.
• Apply a coat of refrigeration oil to the threaded connection port of
theoutdoorunitwherethearenutcomesin.
• Use an appropriate wrench to avoid damaging the connection
threadbyovertighteningthearenut.
English
01_EN_3P379970-9C.indd 6 10/17/2019 4:42:17 PM