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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
71
For the following items, take special care during
construction and check after installation is finished
S
ELECTING THE INSTALLATION SITE
This is a class A product. In a domestic environment this product may
cause radio interference in which case the user may be required to
take adequate measures.
Select an installation site where the following conditions are fulfilled
and that meets your customer’s approval.
The option boxes (expansion valve and electrical control box)
can be installed inside and outside).
Do not install the option boxes in or on the outdoor unit.
Do not put the option boxes in direct sunlight. Direct sunlight will
increase the temperature inside the option boxes and may
reduce its lifetime and influence its operation.
Choose a flat and strong mounting surface.
Operating temperature of the control box is between –10°C and
40°C.
Keep the space in front of the boxes free for future maintenance.
Keep air handling unit, power supply wiring and transmission
wiring at least 1 m away from televisions and radios. This is to
prevent image interference and noise in those electrical
appliances. (Noise may be generated depending on the
conditions under which the electric wave is generated, even if
1 m is kept.)
Make sure the control box is installed horizontally. Screw nuts
position must be downwards.
Precautions
Do not install or operate the unit in rooms mentioned below.
Where mineral oil, like cutting oil is present.
Where the air contains high levels of salt such as air near the
ocean.
Where sulphurous gas is present such as that in areas of hot
spring.
In vehicles or vessels.
Where voltage fluctuates a lot such as that in factories.
Where high concentration of vapor or spray are present.
Where machines generating electromagnetic waves are present.
Where acidic or alkaline vapor is present.
The option boxes must be installed with entrances downward.
R
EFRIGERANT PIPING WORK
For refrigerant piping of outdoor unit, refer to the installation
manual supplied with the outdoor unit.
Follow the outdoor unit specifications for additional charging,
piping diameter and installation.
The maximum allowed piping length depends on the connected
outdoor model.
P
IPING INSTALLATION
Piping limits
L is to be considered as a part of the total maximum piping length.
See installation manual of the outdoor unit for piping installation.
Piping connections
Make sure to install gas and liquid pipe diameters in function of the
air handling unit capacity class.
Selection of piping material
1
Foreign materials inside pipes (including oils for fabrication)
must be 30 mg/10 m or less.
2
Use the following material specification for refrigerant piping:
Construction material: phosphoric acid deoxidized seamless
copper for refrigerant.
Temper grade: use piping with temper grade in function of the
pipe diameter as listed in the table below.
Tick
when
checked
Are the thermistors fixed firmly?
Thermistor may come loose.
Is the freeze-up setting done correctly?
The air handling unit may freeze up.
Is the control box fixed firmly?
The unit may drop, vibrate or make noise.
Do electrical connections comply with specifications?
The unit may malfunction or components may burn out.
Are wiring and piping correct?
The unit may malfunction or components may burn out.
Is the unit safely grounded?
Dangerous at electric leakage.
All field piping must be provided by a licensed refrigeration
technician and must comply with the relevant local and
national codes.
1
Air handling unit
2
Connecton pipe from expansion valve kit to air handling unit
3
Valve kit
4
Liquid pipe
5
Gas pipe
Max (m)
A
-5/+5
(*)
(*) Below or above the valve kit.
L
5
Connection pipe
Air handling unit capacity class
Gas pipe
Liquid pipe
50
Ø12.7
Ø6.4
63
Ø15.9
Ø9.52
80
100
125
140
200
Ø19.1
250
Ø22.2
400
Ø28.6
Ø12.7
500
Ø28.6
Ø15.9
A
3
2
1
5
4
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...