Installation manual
11
LRYEQ16A7Y1
CONVENI-PACK
4P448939-1A – 2016.07
When connected at lateral side (bottom)
Remove the knock hole on the bottom frame and route the piping
under the bottom frame.
• Check that the on-site piping does not come in contact with other
piping, the bottom frame, or side plate of the product.
Precautions for Piping
Perform piping branching with the following conditions kept in mind.
• At the time of branching the liquid piping, in case of joint, branch it
horizontally. This will prevent an uneven flow of refrigerant.
• At the time of branching the liquid piping, in case of header, branch
it downwards.
a Header
b Branch piping downwards
• At the time of branching gas piping, branch it so that the branched
piping will be located above the main piping (see the illustration
below). This will prevent the stay of refrigerant oil in the indoor unit
not in operation.
a Joint
b Branch pipe
c Main pipe
• Make sure that the horizontal portion of the gas piping and the ref-
net header slant downward to the outdoor unit (see the illustration
above).
• If the outdoor unit is located above, make a trap on the gas pipe at
5 m intervals from outdoor unit. This will ensure the smooth return-
ing of oil in the piping slanting upward.
Be sure to insulate the refrigerant branching (refnet joints and header,
T-joints) with thickness equal to insulation thickness of connecting pip-
ing.
[2] Gas side shutoff valve
(Air-conditioner)
[3]
Gas side shutoff valve
(Refrigerator)
[4]
Liquid side shutoff valve
(Refrigerator)
[1]
Liquid side shutoff valve
(Air-conditioner)
Gas side accessory pipe (3)
Gas side accessory pipe (4)
Gas side piping (field supply)
Brazing
Brazing
Liquid side accessory pipe (3)
Liquid side accessory pipe (4)
Knock hole
Punch the knock hole
Liquid side piping (field supply)
Horizontal
±30° or less
A
b
Indoor unit side
Outdoor unit side
Branch piping
Make the piping
slant downward
Branch piping
Make the piping
slant downward
Main piping
Make the piping
slant downward
T-joint
a b
c
4PEN448939-1A.book Page 11 Monday, September 5, 2016 7:12 PM