Model Series; Example Of System Configuration; Indoor Unit Constraints; Selection Of Location - Daikin LRLEQ5AY1 Manuel D'installation

Liquid side Liquid side
Name accessory accessory
pipe (1)
Quantity 1 pc.
Shape

2-2 Model series

MT (Medium Temperature) LRMEQ5~20AY1(E)
LT (Low Temperature) LRLEQ5~20AY1(E)

2-3 Example of system configuration

Name Outdoor unit
Shape
Indoor unit
Name LT (Low Temperature)
Unit cooler Showcase
Shape
[5A, 6A type]
1, 2, 3
4
[15A, 20A type]
1, 2, 3
1 Operation manual
2 Installation manual
3 Clamps
4 Accessory pipes (Installed on bottom frame)
English
Others
pipe (2)
1 pc. 1 pc. about each item
• Operation manual
• Installation manual
• Declaration of con-
formity (PED)
• "ADDITIONAL REF.
CHARGE" label
Thin
Indoor unit
MT (Medium Temperature)
Unit cooler Showcase
Control panel Warning
(Defrost) panel
[8A, 10A, 12A type]
1, 2, 3
4

2-4 Indoor unit constraints

• Install an R410A mechanical thermostatic expansion valve on
each indoor unit.
• Insulate the feeler block of the mechanical thermostatic expan-
sion valve.
• Install an R410A solenoid valve (Max. operating differential pres-
sure of 3.5 MPa [35 bars] or over) on the primary side of the
mechanical thermostatic expansion valve described above for
each indoor unit.
• Install a filter on the primary side of the solenoid valve described
above for each indoor unit. Determine the filter mesh count based
on the size specified by the solenoid valve and mechanical ther-
mostatic expansion valve being used.
• Route the path to the indoor unit heat exchanger so that the flow
of refrigerant is from top to bottom.
• When installing a number of indoor units, be sure to install them at
the same level.
• Use either off-cycle defrosting or electric heater defrosting as the
defrosting type. Hot-gas defrosting models cannot be used.
3.

SELECTION OF LOCATION

Select a location for installation that meets the following conditions.
Get the customer's permission.
1.
There is no danger of fire due to leakage of inflammable gas.
2.
Select the location of the unit in such a way that neither the dis-
charged air nor the sound generated by the unit disturb anyone.
3.
The foundation is strong enough to support the weight of the unit
and the floor is flat to prevent vibration and noise generation.
4.
The piping length between the outdoor unit and the indoor unit
may not exceed the allowable piping length. (Refer to
"6. REFRIGERANT PIPING")
5.
Locations where the unit's suction vent and outlet vent do not gen-
erally face the wind.
Wind blowing directly into the suction or outlet vents will interfere
with the unit's operation.
If necessary, install some kind of obstruction to block the wind.
6.
The space around the unit is adequate for servicing and the min-
imum space for air inlet and air outlet is available.
(See the "Installation Space Examples" for the minimum space
requirements.)
Installation Space Examples
• The installation space requirement shown in the following figure is
a reference for cooling operation when the outdoor temperature is
32°C.
If the design outdoor temperature exceeds 32°C or the heat load
exceeds maximum capacity in all the outdoor unit, take an even
large space on the intake shown in the following figure.
• During installation, install the units using the most appropriate of
the patterns shown in the following figure for the location in ques-
4
tion, taking into consideration human traffic and wind.
• If the number of units installed is more than that shown in the pat-
tern in the following figure, install the units so there are no short
circuits.
• As regards space in front of the unit, consider the space needed
for the local refrigerant piping when installing the units.
• If the work conditions in the following figure do not apply, contact
your dealer or Daikin directly.
3