Daikin 80PTJU, Engineeiring Data

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Installation EDUS30-900-N
32 Installation of Outdoor Units
•
Refrigerant R-410A in the system must be kept clean, dry,
and tight.
(a) Clean and Dry -- Foreign materials (including mineral oils
such as SUNISO oil or moisture) should be prevented from
getting into the system.
(b) Tight -- R-410A does not contain any chlorine, does not
destroy the ozone layer, and does not reduce the earth’s
protection again harmful ultraviolet radiation. R-410A can
contribute to the greenhouse effect if it is released. There-
fore take proper measures to check for the tightness of the
refrigerant piping installation. Read the chapter Refriger-
ant Piping and follow the procedures.
•
Since R-410A is a blend, the required additional refrigerant
must be charged in its liquid state. If the refrigerant is
charged in a state of gas, its composition can change and
the system will not work properly.
•
The indoor unit is for R-410A. See the catalog for indoor
models that can be connected. Normal operation is not pos-
sible when connected to other units.
•
Remote controller (wireless kit) transmitting distance can
be shorter than expected in rooms with electronic fluores-
cent lamps (inverter or rapid start types). Install the indoor
unit far away from fluorescent lamps as much as possible.
•
Indoor units are for indoor installation only. Outdoor units
can be installed either outdoors or indoors.
•
Do not install the air conditioner in the following locations:
(a) Where a mineral oil mist or oil spray or vapor is produced,
for example, in a kitchen.
Plastic parts may deteriorate and fall off or result in water
leakage.
(b) Where corrosive gas, such as sulfurous acid gas, is pro-
duced.
Corroding copper pipes or soldered parts may result in
refrigerant leakage.
(c) Near machinery emitting electromagnetic waves.
Electromagnetic waves may disturb the operation of the
control system and cause the unit to malfunction.
(d) Where flammable gas may leak, where there is carbon
fiber, or ignitable dust suspension in the air, or where vol-
atile flammables such as thinner or gasoline are handled.
Operating the unit in such conditions can cause a fire.
•
Take adequate measures to prevent the outside unit from
being used as a shelter by small animals. Small animals
making contact with electrical parts can cause malfunc-
tions, smoke, or fire. Instruct the customer to keep the area
around the unit clean.
NOTE
•
Install the power supply and control wires for the indoor and
outdoor units at least 3.5 feet away from televisions or
radios to prevent image interference or noise. Depending on
the radio waves, a distance of 3.5 feet may not be sufficient
to eliminate the noise.
•
Dismantling the unit, treatment of the refrigerant, oil and ad-
ditional parts must be done in accordance with the relevant
local, state, and national regulations.
•
Do not use the following tools that are used with conven-
tional refrigerants: gauge manifold, charge hose, gas leak
detector, reverse flow check valve, refrigerant charge base,
vacuum gauge, or refrigerant recovery equipment.
•
If the conventional refrigerant and refrigerator oil are mixed
in R-410A, the refrigerant may deteriorate.
•
This air conditioner is an appliance that should not be ac-
cessible to the general public.
•
The wall thickness of field-installed pipes should be select-
ed in accordance with the relevant local, state, and national
regulations.
2. INTRODUCTION
This installation manual concerns VRV inverters of the Daikin
RWEYQ-P series. These units are designed for indoor installation
and used for cooling and heatpump applications.
The RWEYQ-P units can be combined with Daikin VRV series indoor
units for air conditioning purposes.
The present installation manual describes the procedures for unpack-
ing, installing and connecting the RWEYQ-P units. Installation of the
indoor units is not described in this manual. Always refer to the instal-
lation manual supplied with these units for their installation.
2-1 Combination
The indoor units can be installed in the following range.
• Always use appropriate indoor units compatible with R410A.
To lean which models of indoor units are compatible with
R410A, refer to the product catalogs.
• Total capacity/quantity of indoor units

Outside unit
 
Total capacity index of indoor units

Total quantity of indoor units

RWEYQ72PTJU ............... 36 ~ 93.5 12 units
RWEYQ84PTJU ............... 42 ~ 109 14 units
RWEYQ144PTJU ............. 72 ~ 187 20 units
RWEYQ168PTJU ............. 84 ~ 218 20 units
RWEYQ216PTJU ........... 108 ~ 280 22 units
RWEYQ252PTJU ........... 126 ~ 327.5 32 units
2-2 Standard operation limit
The figures below assume following operating conditions for indoor
and outside units:
Equivalent pipe length...................................................... 25 ft
Level difference.................................................................. 0 ft
Cooling Heating
A Inlet water temperature (°F)
B Indoor temperature (°FWB)
C Indoor temperature (°FDB)
Range for continuous operation
Range for operation
Range for pull down operation
Range for warming up operation
• Operation range of water volume is 13.5~39.5 gpm
• The unit is designed for the following operation range:
Water temperature: 67~95°F
Water volume: 16 gpm or more
• During cooling operation when the outside temperature is very
low, it is possible that the thermostat switches off automatically in
order to protect the unit from freezing.
• Hold ambient temperature at 35~95°F
Heat release
d
from the unit: 0.64 kW/hour (Model 72
) and
0.71 kW/hour (Model
84).
It is therefore recommended to always ventilate the room.
50
60
70
80
90
100
110
120
50
60
70
80
90
100
110
120
60 50 70 80 90 60 50 70 80 90
A A
C B