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EKEQ EKEQDCBV3
Option kit for combination of Daikin condensing units
with field supplied air handling units
4P383212-1 - 2014.08
Installation and operation manual
69
I
NSTALLATION
For installation of the air handling unit, refer to the air handling
unit installation manual.
Never operate the air conditioner with the discharge pipe
thermistor (R3T), suction pipe thermistor (R2T) and pressure
sensors (S1NPH, S1NPL) removed. Such operation may burn
out the compressor.
The equipment is not intended for use in a potentially explosive
atmosphere.
A
CCESSORIES
Obligatory accessory
Refer to chapter "Valve kit installation" on page 72 for installation
instructions.
Optional accessories
N
AME AND FUNCTION OF PARTS
(See
figure 1
and
figure 2)
B
EFORE INSTALLATION
Refer to the installation manual of the outdoor unit for details
onrefrigerant piping, additional refrigerant charging, and inter-
unitwiring.
Precautions for R410A
The refrigerant requires strict cautions for keeping thesystem
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 71 carefully and
followthese 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 air handling unit
Select the air handling unit (field supply) according to the technical
data and limitations mentioned in Table 1.
Lifetime of the outdoor unit, operation range or operation reliability
may be influenced if you neglect these limitations.
EKEQFCB
EKEQDCB
Thermistor (R1T)
—
1
Thermistor (R3T/R2T)
(2.5 m cable)
2
Insulation sheet
2
Rubber sheet
2
Wire to wire splice
4
6
Installation and
operation manual
1
Screw nut
7
8
Tie wrap
6
Capacity setting
adaptor
9
7
Stopper (closing cup)
2
—
EKEQFCBA
EKEQDCB
Expansion valve kit
EKEXV
EKEQFCB
EKEQDCB
Remote controller:
• BRC1D528
• BRC1E52
• BRC2E52
• BRC3E52
1
(*)
(*) For EKEQFA, the remote controller is not used for operating the unit, but for
service and during installation. Therefore a cool/heat selector KRC19-26A6 is
required for the selection of heating, cooling or fan only operation. Refer to the
installation manual of the outdoor unit for details.
1
Parts and components
1
Outdoor unit
2
Control box (EKEQFCBA / EKEQDCB)
3
Air handling unit (field supply)
4
Controller (field supply)
5
Field piping (field supply)
6
Expansion valve kit
Wiring connections
7
Outdoor unit power supply
8
Control box wiring
(Power supply and communication between control box and
outdoor unit)
9
Air handling unit thermistors
10
Communication between controller and control box
11
Power supply and control wiring for air handling unit and controller
(power supply is separate from the outdoor unit)
12
Air thermistor control for air handling unit
13
Remote controller (
= for service only)
Since design pressure is 4 MPa or 40 bar, pipes of
largerwall thickness may be required. Refer to "Selection of
piping material" on page 71
NOTE
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
characteristics 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 1.
Summary of Contents for ERQ Series
Page 2: ......
Page 16: ...Combination Table ESiEN09 06 A 6 General Information...
Page 17: ...ESiEN09 06 A Specifications 7 1 Specifications 8 1 1 Outdoor Units 8...
Page 33: ...ESiEN09 06 A Function general Function 23 1 2 Operation Mode...
Page 58: ...Outline of Control ESiEN09 06 A 48 Function...
Page 71: ...ESiEN09 06 A Wiring Diagram of Control Box Control Box EKEQ CBV3 61 3 2 F box...
Page 109: ...Test Operation ESiEN09 06 A 100 Test Operation 1 2 2 Turn power on...