Refrigerant Piping Work - Daikin BSF4Q54TVJ Manual Del Usario

(3) Attach the hanger brackets to the suspension bolts.
1) Position the Branch Selector unit and secure it temporarily
in place.
Attach the hanger brackets to the suspension bolts as per
the instructions in the figure on the right.
Be sure to affix nuts (3/8 in.(M8) or 7/16 in.(M10), 3 pieces
in 4 locations) and washers (for 3/8 in.(M8), outside
diameter of 15/16 in. (24 mm) to 1-1/8 in. (28 mm) or for
7/16 in.(M10), outside diameter of 1-3/16 in. (30 mm) to
1-5/16 in. (34 mm): 2 pieces in 4 locations) (to be supplied
in the field) from both the top and bottom of the hanger
brackets on both sides of the unit to secure it in place.
2) Adjust the height of the unit as desired.
3) Using a level, verify that the unit has been installed in a
level orientation.
WARNING
• Install the Branch Selector unit in a level orientation. (The unit is not designed for vertical installations.
Doing so will lead to system damage.)
• Attach nuts on both the top and bottom of the hanger brackets.
Overtightening the lower nut without the upper nut in place may cause the hanger bracket and top
plate to deform, causing the unit to produce abnormal noise.

5 . REFRIGERANT PIPING WORK

• For instructions for installing piping between the outdoor unit and the Branch Selector unit, selecting a
refrigerant branch kit, and installing piping between the refrigerant branch kit and indoor units, refer to
the installation manual included with the outdoor unit.
• Before beginning the work, be sure to verify that the type of refrigerant used is R410A.
(The unit will not operate correctly with a different type of refrigerant.)
• Field installed insulation must comply with applicable codes.
5-1 Pipe size selection
Select the size of piping between the outdoor unit (refrigerant branch kit) and the Branch Selector unit
and between the Branch Selector unit and indoor units (refrigerant branch kits) and between Branch
Selector units based on example connections 1, 2 and 3 and Tables 3, 4 and 5.
English
Washer
(Field supply)
Hanger bracket
3/8-9/16 in.
(10 - 15 mm)
Nut (double nut)
(Field supply)
Suspension bolt
(Field supply)
Nut
(Field supply)
Branch
Selector
unit
10