Daikin EKEXMCBV3, Инструкция по установке и эксплуатации

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EKEXMCBV3
Option kit for combination of Daikin condensing units
with field supplied evaporators
4PW32096-1
Installation and operation manual
2
Optional accessories
N
AME AND FUNCTION OF PARTS
(See figure 1 )
B
EFORE INSTALLATION
■
Refer to the installation manual of the outdoor unit for details on
refrigerant piping, additional refrigerant charging, and inter-unit
wiring.
■
Precautions for R410A
■
The refrigerant requires strict cautions for keeping the
system clean, dry and tight.
- Clean and dry
Foreign materials (including mineral oils or moisture)
should be prevented from getting mixed into the system.
- Tight
Read "Piping installation" on page 3 carefully and follow
these procedures correctly.
■
Since R410A is a mixed refrigerant, the required additional
refrigerant must be charged in its liquid state. (If the
refrigerant is in state of gas, its composition changes and the
system will not work properly).
■
The connected air handling units must have heat exchangers
designed exclusively for R410A.
Cautions for selection of the evaporator (air handling unit)
See Table 1 for applicable units.
Select the evaporator (field supply) according to the technical data
and limitations mentioned below.
Lifetime of the outdoor unit, operation range or operation reliability
may be influenced if you neglect these limitations.
Table 1: Limits for outdoor unit
Depending on the heat exchanger, a connectable EKEXV (expansion
valve kit) must be selected to these limitations.
Table 2
Saturated suction temperature (SST) = 6°C, SH (superheat) = 5 K,
air temperature = 27°C DB / 19°C WB.
1 The air handling unit can be connected as a standard indoor unit
to the outdoor unit. The limitations of connection are determined
by the outdoor unit.
EKEXMCB
Remote controller 1
Parts and components
1 Outdoor unit
2 Control box
3 Air handling unit (field supply)
4 Field piping (field supply)
5 Expansion valve kit
Wiring connections
6 Outdoor unit power supply
7 Control box wiring
(Power supply and communication between control box and
outdoor unit)
8 Evaporator thermistors
9 Power supply and control wiring for evaporator (air handling unit)
and controller (power supply is separate from the outdoor unit)
10 Air thermistor control for evaporator (air handling unit)
11 Remote controller
Since design pressure is 4.0 MPa or 40 bar, pipes of larger
wall thickness may be required. Refer to paragraph
"Selection of piping material" on page 4 .
Outdoor unit class capacity Total capacity of indoor units
4 50 ~ 130
5 62.5 ~ 162.5
6 70 ~ 182
8 100 ~ 260
10 125 ~ 325
12 150 ~ 390
14 175 ~ 455
16 200 ~ 520
18 225 ~ 585
NOTE
■
For maximum number of indoor units, see the
outdoor unit specifications.
■
Table 1 shows the possible total capacity of indoor
units when configured in a standard combination.
■
If the total capacity of the connected indoor units
exceeds the capacity of the outdoor unit, cooling
and heating performance may drop when running
the indoor units.
Refer to the section on performance charac-
teristics in the Engineering Data Book for details.
■
The capacity class of the air handling unit is
determined by the selection of the expansion
valve kit according to
Table 2 .
EKEXV
class
Allowed heat exchanger
volume (dm
3
)
Allowed heat exchanger
capacity (kW)
Minimum Maximum Minimum Maximum
50 0.76 0.96 5.0 6.2
63 0.96 1.22 6.4 7.8
80 1.22 1.53 8.1 9.9
100 1.53 1.91 10.1 12.3
125 1.91 2.14 12.6 15.4
140 2.14 2.67 14.4 17.6
200 3.06 3.82 20.2 24.6
250 3.82 4.78 25.2 30.8
Additional limits exist when connecting the EKEXMCB
control box. These can be found in the technical data
book of the EKEXMCB and in this manual.