Installation EDUS39-900-F10
24 FXMQ-MF
Not recommended but in case of emergency
You must use a torque wrench but if you are obliged to install the unit without a torque wrench, you may
follow the installation method mentioned below.
After the work is finished, make sure to check that there is no gas leak.
When you keep on tightening the flare nut with a spanner, there is a point where the tightening torque suddenly
increases. From that position, further tighten the flare nut the angle shown below:
After checking the pipe-connection for gas leakage, be sure to insulate the liquid and gas pipe, referring to Fig.9, 10
and the following points.
FXMQ48MFVJU
1. Insulate the liquid and gas pipes using the insulation for fitting (accessory 3), 4))
(Tighten both edges with clamping material.)
2. Make sure the insulation for fitting (accessory 4)) on the gas pipe has its seams facing up.
3. For the gas pipe, wrap the sealing pad (accessory 5)) around the insulation for fitting (accessory 4)) (flare nut part)
FXMQ72 · 96MFVJU
1. Insulate the liquid pipe using the insulation for fitting (accessory 3)).
(Tighten both edges with clamping material.)
2. Use the attached pipe (accessory 1)) for connecting the gas pipes and make sure to insulate the gas pipes (using
field supplied insulation) all the way to the base where they connect to the unit.
3. The turning torque of the hexagon head bolts (accessory 8)) to connect the attached pipe (accessory 1)) to the unit is
15.9 - 21.3ft/lbf.
Table 3
Pipe size
Further tightening
angle
Recommended arm length of
tool
φ
3/8”
60 to 90 degrees Approx. 7-7/8in.
φ
5/8”
30 to 60 degrees Approx. 11-13/16in.
Insulation
(Attached with main body)
Insulation
for fitting
(accessory 4))
Sealing pad
(accessory 5))
Eliminate a gap
Main body
Main body
Clamps (accessory 11))
Flare nut
Insulation (Field supply)
Eliminate a gap
Insulation for fitting
(accessory 3))
Insulation
(Attached with
main body)
Clamps
(accessory 11))
Flare nut
Insulation
(Field supply)
Gas pipe
Liquid
pipe
Fig. 9
Fig. 10
Insulation
(Field supply)
Insulation
(Field
supply)
Attached pipe
(accessory 1))
Eliminate
a gap
Eliminate
a gap
Main body
Main body
Insulation
(Attached with
main body)
Insulation
(Attached with
main body)
Spring washer (accessory 7))
Hexagon head bolt (accessory 8))
Insulation for fitting
(accessory 3))
Clamps
(accessory 11))
Flare nut
Gas
pipe
Liquid
pipe
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