Daikin LRLEQ5AY1 E Manual De Instalación página 11

〈Handling Precautions for Service Port〉
• Work on the service port with a charge hose provided with a push-
ing rod.
• At the time of mounting the cap, apply a screw lock agent to the
screw thread.
• Do not apply a screw lock agent (for flare nut use) to the sealing
part.
• Be sure to tighten the cap securely after the work. Refer to "Oper-
ation Method of Shutoff Valves" for the tightening torque of the
cap.
Sealing part
Not apply a screw
lock agent
CAUTION
Apply a screw lock agent to the valve cover mount and the
screw thread of the service port.
Otherwise, dew condensation water will intrude inside and freeze.
Therefore, refrigerant gas leakage or a compressor malfunction may
result from the cap deformation or damage.
3.
Connecting refrigerant piping to outdoor units
If connected to the front
Remove the shutoff valve cover to connect.
Liquid side shutoff valve
Gas side shutoff valve
Gas side
accessory pipe (1)
When connected at lateral side (bottom)
Remove the knock hole on the bottom frame and route the piping
under the bottom frame.
[5A, 6A type]
Liquid side
Gas side
shutoff valve
shutoff valve
Gas side
accessory pipe (2)
Brazing
Liquid side piping
(field supply)
Gas side piping
(field supply)
English
Cap
Screw thread
Apply a screw lock
agent
Brazing
Liquid side
accessory pipe (1)
Brazing
Knockout hole
Punch the knock
hole.
Liquid side
accessory pipe (2)
[8A, 10A, 12A, 15A, 20A type]
Liquid side
Gas side
shutoff valve
shutoff valve
Gas side
accessory pipe (1)
Brazing
Liquid side piping
(field supply)
Gas side piping
(field supply)
CAUTION
• 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, use a T-joint or Y-joint
and branch it horizontally. This will prevent an uneven flow of
refrigerant.
• At the time of branching gas piping, use a T-joint and 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.
• Use a Y-joint for the liquid refrigerant branch and have the piping
branch horizontally.
Horizontal
Y-joint
surface
A
• Use a T-joint for the gas refrigerant branch and connect from the
top of the main piping.
T-joint
Main piping
Indoor unit side
T-joint
Branch piping
Make the piping
slant downward
• Make sure that the horizontal portion of the gas piping slants
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
returning of oil in the piping slanting upward.
Brazing
Knockout hole
Punch the knock
hole.
Liquid side
accessory pipe (2)
±30˚ or less
A-arrow view
Branch piping
Make the piping
slant downward
Main piping
Make the piping
slant downward
Outdoor unit side
9