Airtecnic ENERGY BOX AC-A User manual

ENERGY BOX AC-A
ENERGY BOX AC
Ceiling Type Heat / Energy Recovery Unit
with Heat Pump
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V. 4
ΟΔΗΓΙΕΣ ΧΡΗΣΗΣ | OPERATION MANUAL
500 |750 |1.000 |1.500 |2.000 |3.000 | 4.000

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INDEX
Introduction....................................................................................................................................2
Warnings & Safety Informations ....................................................................................................3
Check List......................................................................................................................................5
Technical Specications AC Fan ...................................................................................................6
Unit Dimensions AC Fan ...............................................................................................................7
Technical Specications EC Fan ...................................................................................................8
Unit Dimensions EC Fan ...............................................................................................................9
Installatıon ....................................................................................................................................10
Selection of Electrıcal Cable Cross-Section.................................................................................13
Electrical Connection....................................................................................................................18
Control-DX....................................................................................................................................26
Maintenance.................................................................................................................................42
INTRODUCTION
Installation&Operation Manual has been prepared and given to customer as a guide
for easy installation&operation units manufactured by Airtechnic. The manual contains
description of the unit, components and basic informations and recommendations for proper
and fail free operation. Please read the instructions and warnings given in this manual before
starting installation, operation and maintenance works and keep this manual near the unit,
within easy reach of service personnel.
!
Any damage, failure or hazard occurred because of use except this purpose is beyond
the responsibility of manufacturer.
!
For technical service and questions, please contact with following information.
[phone] www.airtechnic.gr/contact

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WARNINGS & SAFETY INFORMATION
PROHIBITED
• This unit has to be used under proper conditions according to its technical
specication and design purpose. (Otherwise responsibility belongs to
practitioner)
• Unauthorized personnel must not interfere in unit and/or must not use
unoriginal spare parts. (Otherwise responsibility of failure that may occur
belongs to practitioner)
• Do not install this product in a refrigerated warehouse, heated swimming pool
or other location where temperature and humidity are signicantly di󰀨erent.
(Failure to heed this warning may result in electrical shock or malfunctioning.)
• Do not install this product where it will be directly exposed to rain.(Failure to
heed this warning may result in electrical shock or malfunctioning.)
• Do not install this product in a location where acid, alkali or organic solvent
vapors, paints or other toxic gases, gases containing corrosive components
or high concentrations of oily smoke are present (Failure to heed this warning
may result not only in malfunctioning but also re, power leakage and electrical
shock.)
• Do not use this product outside the range of its rated voltage and control
capacity.
ATTENTION
• Install this product in an environment where the temperature ranges from
0 °C to +40 °C and the relative humidity is less than 60%. If condensation
is expected to form, heat up the fresh outside air by a duct heater etc.
• Select an adequately sturdy position for installing the product and install it
properly and securely.
• Use the designated electrical wires for the terminal board connections and
connect the wires securely so that they will not be disconnected.(Failure
to ensure proper connections may result in re.)
• When passing metal ducts through wooden buildings clad with metal
laths, wire laths or metal, these ducts must be installed in such a way that
they will not make electrical contact with metal laths, wire laths or metal
sheets.(Power leakage can cause ignition.)
• The outside ducts must be tilted at a gradient (1/30 or more) downwards
toward the outdoor area from the main unit, and properly insulated. (The
entry of rain water may cause power leaks, re or damage to household
property.)
• Gloves should be worn while installation. (Failure to heed this warning
may result in injury.)
• A dedicated circuit breaker must be installed at the origin of mains power
supply. This circuit breaker must be provided with a means for locking
(lock and key).
• The body of the unit, room control panel and cables keep away the unit
3 m. distance
!

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• This product must not be disassembled under any circumstances. Only
authorized repair technicans are qualied to conduct disassembly and
repairs. (Failure to heed this warning may result in re, electrical shock or
injury.)
• Connect the product properly to the ground.(Malfunctioning or power
leaks can cause electrical shock.)
• An isolator switch having minimum contact gap of 3 mm in all poles must
be provided as a means of disconnecting the power supply.
NOTE: The installations,which is not available for installation and operation
manual, is out of guarantee.

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CHECK LIST
In the event of unit failure and pre-commissioning checks to be made are determined as
follows; after checking this information, please contact our company in case failure continues.
Controls
1. Make sure that the unit receives power and electrical grounding is made!.............................................
2. Make sure that the electricity cables are drawn from in the correct cross section!
(Please check whether there is heating on cables or not.)........................................................................
3. Pleasecheckwhetherthecablesinunitcontrolpanelareshielded(shieldedmagneticeld)
or not; make sure shielding is grounded. If not, please change them! ...................................................
4. Makesurethatfreshairandexhaustairltersarecleanandtheydonotblocktheowofair! ..........
5. Make sure there is the connection of drainage on the unit, check any possible
clogging in drainage line and clean if necessary! .....................................................................................
6. Please check whether the diameter of the air duct connection of the unit and
the diameter of the spigot are the same. If the duct connection is smaller, change
it with the correct one....................................................................................................................................
7. Make sure the electrical connections of the unit are made as suggested on the
unit and in this guide, check if there is incorrect connection. ..................................................................
8. Make sure during the installation of the unit there is enough space for the service
and if there is not enough space, re-install again.......................................................................................
9. In extremely cold climate applications, frost may occur on the exchanger, apply electric
heater in fresh air intake section of the unit to get the temperature to -8 °C and above. ......................
10. After installing the unit, make sure that it does not create an abnormal sound
or vibration, if there is, make sure that rubber pads are used. .................................................................

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TECHNICAL SPECIFICATIONS - AC FAN
ENERGY-
BOX
AC-Α/AC
500
AC-Α/AC
750
AC-Α/AC
1.000
AC-Α/AC
1.500
AC-Α/AC
2.000
AC-Α/AC
3.000
AC-Α/AC
4.000
Air Flow (m³/h)
500 750 1.000 1.500 2.000 3.000 4.000
External Static
Pressure (Pa)
120 180 140 210 120 140 195
Max Air Flow
(m³/h)1
650 960 1.140 1.830 2.400 3.600 4.880
Nominal
Voltage
(V/Hz/Ph)
230/ 50 / 1~ 400/ 50 / 3~
Cooling
Capacity
(kw)2
2,94 3,98 6 8,05 11,34 17,31 24,92
COP 3,88 4,1 4,66 5,81 6,07 5,64 5,41
Total Power
(kw)3
1,18 1,62 2,01 2,74 3,24 5,22 8,40
Heating
Capacity
(kw)2
4,47 5,92 8,51 10,85 15,13 23,31 33,15
COP 5,88 6,1 6,6 7,84 8,1 7,59 7,19
Total Power
(kw)3
0,96 1,39 1,72 2,41 2,81 4,49 7,21
Electric Heater
Diameter (mm)
ø 250 ø 250 ø 300 300 x 300 400 x 400 500 x 400 550 x 450
Electric Heater
(Optional) (kw)4
1,5 1,5 2 4 5 10 10
Unit Weight
(kg)
105 110 150 200 280 410 360
Filter Type G Sınıfı
Refrigerant R404A R407C
Summer Condition: Outdoor air 35 ˚C D.B %40 Rh & Indoor air 25 ˚C K.T. %50 Rh
(evaporation 7,2 ˚C/condensation 50 ˚C)
Winter Condition: Outdoor air 0 ˚C K.T %80 rH & Indoor air 22 ˚C K.T. %40 rH
(evaporation -5 ˚C/condensation 40 ˚C)
1 External static pressure is 0 Pa.
2 Heat exchanger capacity is added to total heating and cooling capacities.
3 Total power is sum of compressor and fan power consumptions.
4 Electric heaters shall be used before the fresh air inlet of the unit to preheat air where
outdoor air is below -5˚C and condensation can occur. Also in humid climates return air
ducts must also be insulated against condensation.

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UNIT DIMENSIONS - AC FAN
ENERGY-BOX AC-A / AC A B C Ø D S
500 1.250 1.000 381 250 600
750 1.250 1.000 381 250 600
1.000 1.400 1300 381 300 700
* All measurement values are mm.
* The gaps of the service area values are specied as “S” on the table. (”Installation” is on page 7. )
ENERGY-BOX AC-A / AC A B C DxF ExF S
1.500 1.650 1.450 440 300 x 300 600 x 300 850
2.000 2.100 1.620 587 400 x 400 550 x 400 800
3.000 2.200 1.911 587 500 x 400 800 x 400 1.050
4.000 2.200 1.911 650 550 x 450 800 x 450 1.100
* All measurement values are mm.
* The gaps of the service area values are specied as “S” on the table. (”Installation” is on page 8. )
* DxF: Outdoor air and indoor air connection
ExF: Supply air and exhaust air connection

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TECHNICAL SPECIFICATIONS - EC FAN
ENERGY-BOX AC-Α/AC
500 EC
AC-Α/AC
750 EC
AC-Α/AC
1.000 EC
AC-Α/AC
1.500 EC
AC-Α/AC
2.000 EC
AC-Α/AC
3.000 EC
AC-Α/AC
4.000 EC
Air Flow (m³/h)
500 750 1.000 1.500 2.000 3.000 4.000
External Static
Pressure (Pa)
375 350 380 365 250 290 360
Max Air Flow
(m³/h)1
800 1.100 1.350 2.060 2.500 3.850 5.450
Nominal
Voltage
(V/Hz/Ph)
230/ 50 / 1~ 400/ 50 / 3~
Cooling
Capacity
(kw)2
2,94 3,98 6 8,05 11,34 17,31 24,92
COP 3,88 4,1 4,66 5,81 6,07 5,64 5,41
Total Power
(kw)3
1,31 2,20 2,58 2,71 3,30 5,31 9,03
Heating
Capacity
(kw)2
4,47 5,92 8,51 10,85 15,13 23,31 33,15
COP 5,88 6,1 6,6 7,84 8,1 7,59 7,19
Total Power
(kw)3
1,10 1,97 2,29 2,38 2,87 4,58 7,84
Electric Heater
Diameter (mm)
Ø 250 Ø 250 Ø 300 300 x 300 400 x 400 500 x 400 550 x 450
Electric Heater
(Optional) (kw)4
1,5 1,5 2 4 5 10 10
Unit Weight
(kg)
105 115 150 200 280 410 360
Filter Type G Sınıfı
Refrigerant R404A R407C
Summer Condition: Outdoor air 35 ˚C D.B %40 Rh & Indoor air 25 ˚C K.T. %50 Rh
(evaporation 7,2 ˚C/condensation 50 ˚C)
Winter Condition: Outdoor air 0 ˚C K.T %80 rH & Indoor air 22 ˚C K.T. %40 rH
(evaporation -5 ˚C/condensation 40 ˚C)
1 External static pressure is 0 Pa.
2 Heat exchanger capacity is added to total heating and cooling capacities.
3 Total power is sum of compressor and fan power consumptions.
4 Electric heaters shall be used before the fresh air inlet of the unit to preheat air where
outdoor air is below -5˚C and condensation can occur. Also in humid climates return air
ducts must also be insulated against condensation.

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UNIT DIMENSIONS - EC FAN
ENERGY-BOXAC/AC-Α A B C Ø D S
500 1.250 1.000 381 250 600
750 1.250 1.000 416 250 600
1.000 1.400 1.300 416 300 700
* All measurement values are mm.
* The gaps of the service area values are specied as “S” on the table. (”Installation” is on page 10. )
ENERGY-BOX
AC-Α/ACEC A B C DxF ExF S
1.500 1.650 1.450 475 300 x 300 600 x 300 850
2.000 2.100 1.620 622 400 x 400 550 x 400 800
3.000 2.200 1.911 622 500 x 400 800 x 400 1.050
4.000 2.200 1.911 685 550 x 450 800 x 450 1.100
* All measurement values are mm.
* The gaps of the service area values are specied as “S” on the table. (”Installation” is on page 10. )
* DxF: Outdoor air and indoor air connection
ExF: Supply air and exhaust air connection

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INSTALLATION
ØD
ØD
NOT: * Top view
* Fan access panels are under the unit.
* The gaps of the maintenance area are specied as “S” on the technical picture.
(”Unit Dimension” is on page 5 and 7.)
* L: For circular air duct L=2 x ød
For rectangular air duct L=Duct diagonal length
WARNING
Check these
warnings
before
installation.
!
Extremely
Sharp
Bends
Multiple
Bends
Bends
right next
to the
outlet
Extreme
Reduction in the
diameter of the
connected ducts

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continue to next page >>
Deep hood
(to prevent rainwater entering the system)
EA (Exhaust
Outlet)
Inspection opening
Supply Air Grille
Supply Air Exhaust Air
Return Air Grille
Air Duct Anchor bolt (to the provided by user)
OA (Outdoor Air
Inlet)

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PREPARING THE SLING BOLTS
ATTACHING THE DUCT CONNECTION FLANGES
INSTALLATION OF THE UNIT
Hang the suspension braket on the anchor bolts
and adjust in such a way that the unit is installed
horizontally. Tighten up securely using double nuts in
order to prevent looseness.
If the duct connection anges are not
connected to the unit, use the screws that
can be found in the installation package to
connect the anges to the unit as the gure
on the left.
Hang the unit on the anchor bolts
and adjust in such a way that the unit
is installed horizontally. Tighten up
securely using double nuts in order
to prevent looseness.
WARNING
Check the stability of sling
bolts during the installation.
!
WARNING
Before attaching the duct
connectionanges,checkthat
no foreign matter has found.
!
WARNING
1 Connect the drainage line with downward slope.
2 Water condensed in the exchanger and coils should be
discharged by connecting the 1 pieces of ½” diameter drain
hose to the drain outlet under the unit.
3 Theapplicationswhichcanpreventtheowofwaterinthe
drainage line should be avoided.
4 The drainage line shall never be moved to an upper level
than the drain pan.
!
Energy Box AC-A / AC
Series Unit
Anchor Bolt
Nut
Washer
Rubber Isolator
Anchor Bolt (M10 or M12)
Nut
asher
Nut (kontra)
Rubber Isolator
Wa

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SELECTION OF ELECTRICAL CABLE
CROSS-SECTION (energy BOX AC-A / AC)
ENERGY-
BOX
AC-Α/AC
Unit
Voltage
(V)
Unit Power Input
(kW)
Current
(A)
Fuse
(A)
Cable Cross-
Section(mm²)
for 50M and PF=0,8
500 230 1,23 6,68 2 x 16 1,5
750 230 1,7 9,23 2 x 16 1,5
1.000 230 2,07 11,25 2 x 20 1,5
1.500 230 2,93 15,92 2 x 20 2,5
2.000 230 3,54 19,23 2 x 25 2,5
*3.000 400 Comp. 4,9 kW / Fan
1,36 kW
Comp. 8,85 A / Fan
7,39 A 3 x 20 1,5
*4.000 400 Comp. 7,45 kW / Fan
2,6 kW
Comp. 13,45 A / Fan
14,13 A 3 x 32 4
* Compressor 400V and fan 230V for ENERGY-BOX AC-Α/ENERGY-BOX AC 3.000 and 4.000 unit models.
CABLE CROSS-SECTION FORMULAS
1
I current ꞊ P
U.CosQ
I cable > I current
2
%e ꞊ 100.P.L
k.S.U² , S ꞊ 100.P.L k.%e.U²
%e ꞊ %3
3
I cable > I fuse ≥ I current
Cable Cross-Section S=Max
(S1, S2, S3, 1,5 mm²)
* It is suitable for units with 230V supply voltage.
P: Power
I: Current
U: Voltage
S: Conductor cross section
k: Conductor coe󰀩cient
L: Conductor length
%e: The voltage drop
P: 1,23 kW
L: 50 m
U: 230 V
%e: %3
PF: CosQ: 0,8
k: 56 m/Ω
EXAMPLE OF CABLE CROSS-
SECTION CALCULATION
1
I current ꞊ 1.230 W
230.0,8 ꞊ 6,68 A
The cable will be used, is selected from
the cable cross-section table so that the
equivalent ampere value in the table should
be higher than calculated “I current” value.
S1 = 0,5 mm²
2
%e ꞊ %3
S ꞊ 100.1.230.50
56.3.230² ꞊ 0,76 mm²
S2 ≥ 0,69 ≥ 0,75 mm²
S2 = 0,75 mm²
3
I cable > I fuse ≥ I current
I cable > 10 A > 6,68 A
“I fuse”, which will be higher than “I current”,
is selected.The cable will be used, is selected
from the cable cross-section table so that the
equivalent ampere value in the table should
be higher than selected “I fuse” value.
I cable =12 A
S3 = 0,5 mm²
Cable cross-section
S=Max (S1, S2, S3, 1,5 mm²)
S=Max (0,5, 0,75, 0,5, 1,5)
S=1,5 mm²
* It must be considered the above information for compressor calculation in ENERGY-BOX AC-Α / AC 3.000 and 4.000 unit models.

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CABLE CROSS-SECTION FORMULAS
1
I current ꞊ P
√3.U.CosQ
I cable > I current
2
%e ꞊ 100.P.L
k.S.U² , S ꞊ 100.P.L k.%e.U²
%e ꞊ %3
3
I cable > I fuse ≥ I current
Cable Cross-Section
S = Max (S1, S2, S3, 1,5 mm²)
* It is suitable for units with 230V supply voltage.
P: Power
I: Current
U: Voltage
S: Conductor cross section
k: Conductor coe󰀩cient
L: Conductor length
%e: The voltage drop
P: 4,9 kW
L: 50 m
U: 400 V
%e: %3
PF: CosQ: 0,8
k: 56 m/Ω
EXAMPLE OF CABLE CROSS-
SECTION CALCULATION
1
I current ꞊ 4900 W
√3.400.0,8 ꞊ 6,68 A
The cable will be used, is selected from
the cable cross-section table so that the
equivalent ampere value in the table should
be higher than calculated “I current” value.
S1 = 0,5 mm²
2
%e ꞊ %3
S ꞊ 100.4900.50
56.3.400²
S2 ≥ 0,91 mm²
S2 = 1 mm²
3
I cable > I fuse ≥ I current
I cable > 10 A ≥ 8,85 A
The cable will be used, is selected from
the cable cross-section table so that the
equivalent ampere value in the table should
be higher than selected “I fuse” value.
I cable =15 A
S3 = 0,75 mm²
Cable cross-section
S=Max (S1, S2, S3, 1,5 mm²)
S=Max (0,5, 1, 0,75, 1,5)
S=1,5 mm²
* It must be considered the above information for compressor calculation in ENERGY-BOX AC-Α/ENERGY-BOX
AC 3.000 and 4.000 unit models.

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CABLE CROSS-SECTION FORMULAS
1
I current ꞊ P
U.CosQ
I cable > I current
2
%e ꞊ 100.P.L
k.S.U² , S ꞊ 100.P.L k.%e.U²
%e ꞊ %3
3
I cable > I fuse ≥ I current
Cable Cross-Section
S=Max (S1, S2, S3, 1,5 mm²)
* It is suitable for units with 230V supply voltage.
P: Power
I: Current
U: Voltage
S: Conductor cross section
k: Conductor coe󰀩cient
L: Conductor length
%e: The voltage drop
P: 1,36 kW
L: 50 m
U: 230 V
%e: %3
PF: CosQ: 0,8
k: 56 m/Ω
EXAMPLE OF CABLE CROSS-
SECTION CALCULATION
1
I current ꞊ 1360 W
230.0,8 ꞊ 7,39 A
The cable will be used, is selected from
the cable cross-section table so that the
equivalent ampere value in the table should
be higher than calculated “I current” value.
S1 = 0,5 mm²
2
%e ꞊ %3
S ꞊ 100.1360.50
56.3.400² ꞊ 0,76 mm²
S2 ≥ 0,76 mm² > 1 mm²
S2 = 1 mm
3
I cable > I fuse ≥ I current
I cable > 10 A ≥ 7,39 A
“I fuse” which will be higher than “I current”,
is selected.
The cable will be used, is selected from
the cable cross-section table so that the
equivalent ampere value in the table should
be higher than selected “I fuse” value.
I cable =12 A
S3 = 0,5 mm²
Cable cross-section
S=Max (S1, S2, S3, 1,5 mm²)
S=Max (0,5, 1, 0,5, 1,5)
S=1,5 mm²
* It must be considered the above information for compressor calculation in ENERGY-BOX AC-Α/ENERGY-BOX
AC 3.000 and 4.000 unit models.
I cable > I fuse ≥ I current (I fan + I comp.)
I cable > 20 A ≥16,24 A
“I fuse”, which will be higher than “I current”, is selected.
The cable will be used, is selected from the cable cross-section table so that the
equivalent ampere value in the table should be higher than selected “I fuse” value
I cable = 24 A
S3 = 1,5 mm²
* It must be considered the above information for fan and compressor calculation in ENERGY-BOX AC-Α/
ENERGY-BOX AC 3.000 and 4.000 unit models.

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SELECTION OF ELECTRICAL CABLE CROSS-SECTION
(energy BOX AC-A EC / AC EC)
ENERGY-BOX
AC-ΑEC/
AC EC
Unit
Voltage
(V)
Unit Power Input
(kW)
Current
(A)
Fuse
(A)
Cable Cross-Section
(mm²) for 50 M
and PF = 0,8
500
230
1,37 7,44 2 x 16
1,5
750 2,29 12,44
1.000 2,64 14,34 2 x 20
1.500 2,9 15,76
2.000 3,57 19,4 2 x 25
2,5
*3.000
400
Comp. 4,9 kW /
Fan 1,5 kW
Comp. 8,85 A /
Fan 8,15 A 3 x 25
4.000 10,68 19,29
* Compressor 400V and fan 230V for ENERGY-BOX AC-Α EC/ENERGY-BOX AC EC 3.000 unit models.
CABLE CROSS-SECTION FORMULAS
1
I current ꞊ P
U.CosQ
I cable > I current
2
%e ꞊ 100.P.L
k.S.U² , S ꞊ 100.P.L k.%e.U²
%e ꞊ %3
3
I cable > I fuse ≥ I current
Cable Cross-Section
S = Max (S1, S2, S3, 1,5 mm²)
* It is suitable for units with 230 V supply voltage.
P: Power
I: Current
U: Voltage
S: Conductor cross section
k: Conductor coe󰀩cient
L: Conductor length
%e: The voltage drop
P: 1,37 kW
L: 50 m
U: 230 V
%e: %3
PF: CosQ: 0,8
k: 56 m/Ω
EXAMPLE OF CABLE CROSS-
SECTION CALCULATION
1
I current ꞊ 1370 W
230.0,8 ꞊ 7,44 A
The cable will be used, is selected from
the cable cross-section table so that the
equivalent ampere value in the table should
be higher than calculated “I current” value.
S1 = 0,5 mm²
2
%e ꞊ %3
S ꞊ 100.1370.50
56.3.230² ꞊ 0,77 mm²
S2 ≥ 0,77 mm² > 1 mm²
S2 = 1 mm²
3
I cable > I fuse ≥ I current
I cable > 10 A ≥ 7,44 A
“I fuse” which will be higher than “I current”,
is selected.
The cable will be used, is selected from
the cable cross-section table so that the
equivalent ampere value in the table should
be higher than selected “I fuse” value.
I cable = 12 A
S3 = 0,5 mm²
Cable cross-section
S=Max (S1, S2, S3, 1,5 mm²)
S=Max (0,5, 1, 0,75, 1,5)
S=1,5 mm²
* It must be considered the above information for fan and compressor calculation in ENERGY-BOX AC-Α EC/
ENERGY-BOX AC EC 500, 750, 1.000, 1.500, 2.000 unit models.

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CABLE CROSS-SECTION FORMULAS
1
I current ꞊ P
√3.U.CosQ
I cable > I current
2
%e ꞊ 100.P.L
k.S.U² , S ꞊ 100.P.L k.%e.U²
%e ꞊ %3
3
I cable > I fuse ≥ I current
Cable Cross-Section
S = Max (S1, S2, S3, 1,5 mm²)
* It is suitable for units with 400 V supply voltage.
P: Power
I: Current
U: Voltage
S: Conductor cross section
k: Conductor coe󰀩cient
L: Conductor length
%e: The voltage drop
P: 10,68 kW
L: 50 m
U: 400 V
%e: %3
PF: CosQ: 0,8
k: 56 m/Ω
EXAMPLE OF CABLE CROSS-
SECTION CALCULATION
1
I current ꞊ 10680 W
√3.400.0,8 ꞊ 19,29 A
The cable will be used, is selected from
the cable cross-section table so that the
equivalent ampere value in the table should
be higher than calculated “I current” value.
S1 = 1,5 mm²
2
%e ꞊ %3
S ꞊ 100.10680.50
56.3.400²
S2 ≥ 1,98 mm²
S2 = 2,5 mm²
3
I cable > I fuse ≥ I current
I cable > 25 A ≥ 19,29 A
“I fuse”, which will be higher than “I current”,
is selected.
The cable will be used, is selected from
the cable cross-section table so that the
equivalent ampere value in the table should
be higher than selected “I fuse” value.
I cable = 32 A
S3 = 2,5 mm²
Cable cross-section S = Max (S1, S2, S3,
1,5 mm²)
S = Max (1,5, 2,5, 2,5, 1,5)
S = 2,5 mm²
* It must be considered the above information for fan calculation in ENERGY-BOX AC-Α EC/ENERGY-BOX AC
EC 3.000 and 4.000 unit models.
I cable > I fuse ≥ I current (I fan + I comp.)
I cable > 25 A ≥17 A
“I fuse”, which will be higher than “I current”, is selected.
The cable will be used, is selected from the cable cross-section table so that the
equivalent ampere value in the table should be higher than selected “I fuse” value.
I cable = 32 A
S3 = 2,5 mm²
* It must be considered the above information for fan and compressor calculation in ENERGY-BOX AC-Α/
ENERGY-BOX AC 3.000 and 4.000 unit models.

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ELECTRICAL CONNECTION
System Connection
1- Cut the gaskets in cable connection hole from the center.
2- Pass the on/o󰀨 switch cables through the cable connection hole.
3- Connect the main power cable and ground wires to the terminals in the junction box.
4- Use cable tie to hold the cables tightly.
5- After making cable connections, insulate the cable connection hole against entering
water and impurity.
Considerations During Electricity Network Connection
1- Electrical connection must be done by an authorized personnel.
2- Drain pipe connection should be done before making the electrical connection and
please start electrical installation after being sure that insulation is ensured.
3- All kinds of safety measures should be taken by the technician during installation.
4- Electrical wiring must be done according to the specied electrical diagram. Any
electrical connection which is made by the factory should not be changed.
5- Cables to be used during network connection must conform to the specied standards
and should be connected to a grounded power supply.
6- A circuit breaker should be placed between the unit and network. Circuit breaker must
be selected according to the total power and current value specied on+ the nameplate.
7- Over current protection is recommended for the units.

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Energy Box AC-Α, AC
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Wiring Diagram With AIRTECHNIC DX Control Card For ENERGY-BOX AC-Α / AC-500/750/1.000
Units
Supply Fan Exhaust Fan
Filter Faut
4 Way Valve
Pressure Switch
Crankcase Heater
Compressor
CAPACITOR CAPACITOR
OA Thermistor
RA Thermistor
SA Thermistor

www.airtechnic.gr Energy Box AC-Α, AC
20
www.airtechnic.gr ATHENS [phone] / THES/NIKI [phone]
Wiring Diagram With AIRTECHNIC DX Control Card For ENERGY-BOX AC-Α / AC-500/750/1.000 Units
Supply Fan Exhaust Fan
Filter Faut
4 Way Valve
Pressure Switch
Crankcase Heater
Compressor
CAPACITOR CAPACITOR
OA Thermistor
RA Thermistor
SA Thermistor