Daikin VRV IV Series Installation Manual page 12

When one indoor unit with a capacity of 72 is connected downstream
Suction gas pipe (Site piping)
High/low pressure gas pipe (Site piping)
Liquid pipe (Site piping)
5-6 Piping insulation
• After the gas leak inspection is completed, refer to the following figures and use the included insulation
tube 3) and clamps 2) to apply the insulation.
CAUTION
• Insulate all of the piping including the liquid pipes, high/low pressure gas pipes, suction gas pipes, gas
pipes, and the pipe connections for these.
Not insulating these pipes could result in water leaks or burns.
In particular, low-temperature gas flows in the high/low pressure gas pipes during full cooling operation,
so the same amount of insulation as used for the suction gas pipes is required.
In addition, high-temperature gas flows in the high/low pressure gas piping and gas piping, so use
insulation that can withstand more than 250°F (120°C).
• When reinforcing the insulation material in accordance with the installation environment, also reinforce
the insulation on the piping protruding from the unit.
Insulation material required for reinforcement work should be supplied in the field.
For more information, refer to the Engineering Data Book.
BSQ36 · 60TVJ type
Insulation tube 3)-2
(Accessory)
Suction gas pipe
(Note 1)
High/low pressure
Branch Selector
gas pipe (Note 1)
Liquid pipe
Insulation tube 3)-2
(Accessory)
Insulation tube 3)-1
(Accessory)
Insulation Attachment Instructions
(1) Attach the included
insulation.
Piping insulation
(Product piping side)
Main unit
(2) Seal (3) Use the clamps (accessory)
to hold both ends.
Insulation Installation Precautions
1. Seal so that air cannot be in and out of the end.
2. Do not over tighten the clamp so as to maintain the insulation thickness.
3. Be sure to attach the insulation (field supply) with the seams facing up.
(See figure at right.)
9
Branch
Selector
unit
(Top)
Insulation
Clamp 2)
tube 3)-2
(Accessory)
(Accessory)
Gas pipe
(Note 1)
unit
Liquid pipe
Insulation
tube 3)-1
(Accessory)
Clamp 2)
(Accessory)
Note 1: For suction gas pipes, high/low
pressure gas pipes, and gas pipes,
after attaching the included
insulation tube, wrap more
Pipe connection
insulation (field supply) around the
connections.
Piping insulation
(Site piping side)
Accessory pipe 1)-2
Gas pipe (Site piping)
Liquid pipe (Site piping)
BSQ96TVJ type
Clamp 2)
Insulation tube 3)-2
(Accessory) (Accessory)
Suction gas pipe
(Note 2)
High/low pressure
Branch Selector
gas pipe (Note 1)
Liquid pipe
Insulation tube 3)-3
(Accessory)
Insulation tube 3)-1
(Accessory)
Note 2: For Model Q96, wrap sealing
Main
unit
Insulation material
(Field supply)
Insulation
tube 3)-2
(Accessory)
Gas pipe
(Note 2)
unit
Liquid pipe
Insulation
tube 3)-1
(Accessory)
Clamp 2)
(Accessory)
material (field supply) around the
insulation tube 3)-2 Branch
Selector unit side and site piping
side connections to seal them.
Seal the connection.
Insulation tube 3)-2
(Accessory)
Seam
Attach facing up
3P405106-10 English