ERQ PAIR AND VRV® AIR HANDLING APPLICATIONS - COM

ERQ (PAIR) AND VRV ®
AIR HANDLING APPLICATIONS
For small to large commercial spaces Daikin offers a range of R-410A inverter condensing units for use in conjunction with air
handling units. In situations where Daikin commercial range ventilation units cannot satisfy the ventilation requirement due
to building constraints (large atriums, banquet halls etc), air handling units represent the ideal solution.
Air handling units provide large fresh air volumes (> 1,000 m3/h) and high ESPs enabling the use of extensive ductwork runs.
For more information on Daikin air handling units refer to the air handling unit catalogue.
BENEFITS OF ERQ AND VRV®
AIR HANDLING APPLICATIONS
Outside air = 10°C
Fresh air supplied at 21°C.
The temperature difference
with the outdoor air is
heated up for free by heat
recovery via A/C system
HIGH EFFICIENCY
Daikin heat pumps are renowned for their high energy efficiency with
COPs up to 4.56 in heating1. The VRV® range offers both heat pump
and heat recovery units with part load efficiencies as high as 9.02.
Integrating the AHU with a heat recovery system is highly effective
since an office system can frequently be in cooling mode while the
outdoor air is too cold to be brought inside in an unconditioned state.
In this case heat from the offices is merely transferred to heat up the
cold incoming fresh air. In the absence of an AHU this ‘free heating’
the incoming fresh air would not be possible.
1 ERQ100AV1 heat pump
2 REYQ8P8 50% cooling – 50% heating load. Conditions: outdoor temperature 11°CDB, indoor temperature 18°CWB, 22°CDB
Indoor temperature 22°C,
needs cooling because of
solar radiation.
The excessive heat can
be transferred to the AHU
HIGH COMFORT LEVELS
Daikin ERQ and VRV® units respond rapidly to fluctuations in supply air temperature, resulting in a steady indoor temperature
and resultant high comfort levels for the end user.
EASY DESIGN AND INSTALLATION
The system is easy to design and install since no additional water systems such as boilers, tanks and gas connections etc are
required. This also reduces the total system cost.
TOTAL SOLUTION CONCEPT
Integrating an air handling unit into the total building climate system enables both design and installation procedures to
based on a single common technology. This simplifies project follow-up, installation, commissioning and maintenance since
only one party is involved.
31
WHICH SYSTEM OFFERS ME
THE BEST SOLUTION?
In order to maximise combination potential, Daikin offers ‘pair’ and ‘multi’ combination plus several expansion kits and control
systems. Control box and expansion valve kits are required for each combination with an air handling unit. Both option kits
are designed for indoor and outdoor installation and can be wall mounted.
I ONLY NEED
A CONNECTION TO AN AIR HANDLING UNIT
Outdoor unit combined with indoor units
Expansion valve kit
Air handling unit
A solution for your shop, warehouse, showroom or office.
Control box
ERQ heat pump
›
›
›
›
›
›
ERQ
Inverter controlled units
Large capacity range (from 100 to 250 class)
Heat pump
R-410A
Flexible control possibilities
Wide range of expansion valve kits available
System
Type
Cooling capacity (kW)
Heating capacity (kW)
ERQ-AV1
Air-cooled
ERQ-AW1
4
5
6
8
10
11.2
14.0
15.5
22.4
28.0
12.5
16.0
18.0
25.0
31.5
I NEED AN AIR HANDLING UNIT
AND HEATING, AND/OR COOLING
Air handling unit
Control box
Expansion valve kit
VRV® Outdoor unit
Integrate your air handling unit in a Total solution for your shop
or office building.
VRV® heat recovery / heat pump
›
›
›
›
›
1
2
Inverter controlled units
Integrates in all VRV® heat recovery
and heat pump systems up to 54 HP
Provides virtually free heating for the air handling unit via
recovered heat from indoor units in cooling1
Control of air temperature
via standard Daikin wired remote control
Large range of expansion valve kits available
In case of connection to a VRV® heat recovery outdoor unit
For more information on VRV® units refer to the VRV® catalogue
System
Type
Cooling capacity (kW)
Heating capacity (kW)
Heat recovery
Air-cooled VRV®
Heat pump
Heat recovery
Water-cooled VRV®
Heat pump
32
4
5
6
8
VRV® Indoor unit connected to the same system
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54
11.2 14.0 15.5 22.4 28.0 33.5 40.0 45.0 49.0 55.9 61.5 67.0 71.4 77.0 82.5 89.0 94.0 98.0 105.0 111.0 116.0 120.0 126.0 132.0 138.0 143.0 147.0
12.5 16.0 18.0 25.0 31.5 37.5 45.0 50.0 56.5 62.5 69.0 75.0 81.5 88.0 94.0 102.0 107.0 113.0 119.0 126.0 132.0 138.0 145.0 151.0 158.0 163.0 170.0
SYSTEM OVERVIEW
Pair application: ERQ
Expansion valve kit: EKEXV
Air handling unit
F1, F2 communication
Control box:
EKEQDCB: Control Z
EKEQFCB: Control X,Y
DDC controller
(field supplied) Control X
Multi application: VRV®
EKEXV-kit
Air handling unit
Control box: EKEQMCB Control Z
Daikin communication wire (F1, F2 communication)
Other communication wire
Liquid pipe
Gas pipe
33
CONTROL POSSIBILITIES
In order to maximise installation flexibility, 3 types of control systems are offered:
POSSIBILITY X (TD/TR CONTROL):
Air temperature control via an external DDC
controller (field supplied)
Room temperature is controlled as a function of the air handling unit
suction or discharge air (customer selection). The DDC controller is
translating the temperature difference between set point and air suction
temperature (or air discharge temperature or room temperature) into a
reference voltage (0-10V) which is transferred to the Daikin control box
(EKEQFCBA). This reference voltage will be used as the main input value
for the compressor frequency control.
Ts
DDC
POSSIBILITY Y (TE/TC CONTROL):
Daikin
control box:
EKEQFCB
Room
Te
AHU
TR
A fixed target evaporating temperature of between 3°C and 8°C can be
set by the customer. In this case, room temperature is only indirectly
controlled. The cooling load is determined from the actual evaporating
temperature (i.e. load to the heat exchanger). A Daikin wired remote
controller (BRC1D52 or BRC1E51A - optional) can be connected for error
indication.
POSSIBILITY Z (TD/TR CONTROL):
Td
TR
Ts
By fixed evaporating temperature
Te
AHU
Daikin
control box:
EKEQFCB
Td
Room
BRC1D52
BRC1E51A
ON / OFF
KRP4A51
Using Daikin wired remote controller
(BRC1D52 or BRC1E51A - optional)
Set point can be fixed via standard Daikin wired remote controller.
Remote ON/OFF can be achieved by an optional adapter KRP4A51.
No external DDC controller should be connected. The cooling load
is determined from the air suction temperature and set point on the
Daikin controller.
Ts
Td
Tr
= Air suction temperature
= Air discharge temperature
= Room temperature
OPTION KIT
Possibility x
Possibility y
Possibility z
Daikin
control box:
EKEQDCB
EKEQMCB
Te
= Evaporating temperature
AHU = Air Handling Unit
DDC = Digital Display Controller
FEATURES
Field supplied DDC controller is required
Temperature control using air suction or air discharge temperature
EKEQFCB
EKEQDCB
EKEQMCB*
* EKEQMCB (for ’multi’ application)
34
Ts
Using fixed evaporating temperature,
no set point can be set using remote controller
Using Daikin wired remote controller BRC1D52 or BRC1E51A
Temperature control using air suction temperature
Te
Td
AHU
TR
Room
BRC1D52
BRC1E51A
35
SELECTION OF AIR HANDLING UNITS
PAIR APPLICATION
Step 1: Select required capacity of AHU
Based on the required capacity of the AHU please select the expansion valve
Step 1
3
Allowed heat exchanger volume (dm )
Allowed heat exchanger capacity in coolong (kW)
Allowed heat exchanger capacity in heating (kW)
EKEXV class
Minimum
Maximum
Minimum
Standard
Maximum
Minimum
Standard
63
1.66
2.08
6.3
7.1
7.8
7.1
8.0
Maximum
8.8
80
2.09
2.64
7.9
9.0
9.9
8.9
10.0
11.1
100
2.65
3.3
10
11.2
12.3
11.2
12.5
13.8
125
3.31
4.12
12.4
14.0
15.4
13.9
16.0
17.3
140
4.13
4.62
15.5
16.0
17.6
17.4
18.0
19.8
200
4.63
6.6
17.7
22.4
24.6
19.9
25.0
27.7
250
6.61
8.25
24.7
28.0
30.8
27.8
31.5
34.7
Heat exchanger capacity is defined under following conditions:
Saturated suction temperature (SST) = 6°C, Superheat (SH) = 5K
Subcool condensor (SC) = 3K
Air temperature = 27°CDB/19°CWB
Eg: If you need 14kW in cooling, you will require an expansion valve of 125class (EKEXV125).
The heat exchanger capacity has priority over the volume of the heat exchanger and is therefore the determining factor for
the selection of the expansion valve. More information on the volume can be found in the data book and service manual.
Step 2: Select outdoor unit
Pair combinations with ERQ outdoor units are possible based on the same principle as standard DX units. The capacity of the
AHU unit is indicated by the capacity of the expansion valve and can be connected as indicated in below table.
Step 2
1~
ERQ
3~
P:
Class 63
Class 80
Class 100
Class 125
Class 140
Class 200
Class 250
EKEXV63
EKEXV80
EKEXV100
EKEXV125
EKEXV140
EKEXV200
EKEXV250
x or y
Control
EXPANSION VALVE KIT
EKEQFCB
EKEQDCB
OUTDOOR UNIT
Control z
CONTROL BOX
ERQ100AV1
P
P
P
P
P
P
-
-
-
ERQ125AV1
P
P
P
P
P
P
P
-
-
ERQ140AV1
P
P
-
P
P
P
P
-
-
ERQ125AW1
P
P
P
P
P
P
P
-
-
ERQ200AW1
P
P
-
-
P
P
P
P
P
ERQ250AW1
P
P
-
-
-
P
P
P
P
Pair, combination depending on AHU coil volume and capacity
Eg: Based on above selected expansion valve, the EKEXV125 has a capacity of class 125. Therefore we can choose to connect
it in pair with all outdoor units indicated in the table above with P.
Step 3: Control box selection
Please make your selection of the control box based on your requirements. All the different control possibilities are mentioned
on page 34.
More information on the selection is available in the service manual.
36
MULTI APPLICATION
Step 1: Select required capacity of AHU
Based on the required capacity of the AHU please select the expansion valve
Step 1
EKEXV class
Allowed heat exchanger volume (dm3)
Allowed heat exchanger capacity in cooling (kW)
Allowed heat exchanger capacity in heating (kW)
Minimum
Maximum
Minimum
Standard
Maximum
Minimum
Standard
50
0.76
1.65
5.0
5.6
6.2
5.6
6.3
7.0
63
1.66
2.08
6.3
7.1
7.8
7.1
8.0
8.8
80
2.09
2.64
7.9
9.0
9.9
8.9
10.0
11.1
100
2.65
3.3
10
11.2
12.3
11.2
12.5
13.8
6.9
Maximum
125
3.31
4.12
12.4
14.0
15.4
13.9
16.0
17.3
140
4.13
4.62
15.5
16.0
17.6
17.4
18.0
19.8
200
4.63
6.6
17.7
22.4
24.6
19.9
25.0
27.7
250
6.61
8.25
24.7
28.0
30.8
27.8
31.5
34.7
Eg: If the required capacity of the AHU is 6.9kW in cooling, which lies between 6.3 and 7.8, the EKEXV63 can be selected.
The heat exchanger capacity has priority over the volume of the heat exchanger and is therefore the determining factor for
the selection of the expansion valve. More information on the volume can be found in the data book and service manual.
Step 2: Select outdoor unit
Multiple AHU can be connected to a VRV® system and the connection principle is similar as for ERQ. Connection of the full
system can be up till 110% including at least 1 Daikin indoor unit (cassette, duct, …) The capacity index of the AHU needs to
be calculated based on the indicated capacity of the selected expansion valve and the actual capacity.
The AHU capacity index = capacity class (expansion valve) * ratio (actual capacity AHU / standard capacity expansion valve)
Eg: AHU has a capacity requirement of 6.9kW and the selected expansion valvue is the EKEXV63 with a standard capacity of
7.1kW. So the AHU capacity = 63 * (6.9kW / 7.1kW) = 61 class
In case that in the system 2 FXSQ50 class are connected, the total sum of capacity would be 61 + 2*50 = 161 class
Based on the 161 class a 10 HP is required as outdoor unit.
1
For detailed specifications of VRV® outdoor units, refer to the VRV® catalogue or databooks
Step 3: Control box selection
EKEQMCB is the control box which is required to control the communication between the AHU and the VRV® system beside
the standard communication of the Daikin DX indoor units (cassette, duct, wall…).
More information on the selection is available in the service manual.
37
Air handling application (pair)
ERQ
SPECIFICATIONS
OUTDOOR UNIT
ERQ100AV1
ERQ125AV1
ERQ140AV1
ERQ125AW1
ERQ200AW1
Capacity range
HP
4
5
6
5
8
10
Cooling capacity Nom.
kW
11.2 (1)
14.0 (1)
15.5 (1)
14.0 (1)
22.4 (1)
28.0 (1)
kW
12.5 (2)
16.0 (2)
18.0 (2)
16.0 (2)
25.0 (2)
31.5 (2)
Heating capacity Nom.
Capacity control
Power input
Cooling
Min./Max.
%
24/100
Cooling
Nom.
kW
-
3.52 (1)
5.22 (1)
7.42 (1)
Heating
Nom.
kW
-
4.00 (2)
5.56 (2)
100
7.70 (2)
3.42 (1)
3.98 (1)
4.29 (1)
3.77 (1)
3.94 (2)
4.00 (2)
4.50 (2)
4.09 (2)
3.99 (1)
EER
4.56 (2)
COP
Casing
Material
Dimensions
Unit
Weight
Unit
4.15 (2)
Painted galvanized steel plate
HeightxWidthxDepth
mm
Painted galvanized steel plate
1,345x900x320
1,680x635x765
120
159
kg
Type
m³/min
m³/min
102
Sound power level Cooling
Nom.
dBA
66
67
69
72
Cooling
Nom.
dBA
50
51
53
54
Heating
Nom.
dBA
52
53
55
Sound pressure
level
Compressor
Compressor 2
106
105
Model
Type
240
Propeller
Cooling Nom.
Air flow rate
1,680x930x765
187
Propeller
Heating Nom.
Fan
95
171
95
171
185
185
78
57
58
-
JT100G-VDL
Inverter
Hermetically sealed scroll compressor
Hermetically sealed scroll compressor
Model
-
-
ON - OFF
Type
-
-
Hermetically sealed scroll
Cooling
Min.~ Max.
°CDB
-5~ 46
-5~ 43
Heating
Min.~Max.
°CWB
-20~15.5
-20~15
Enterning air
Cooling
temperature on AHU
Heating
heat exchanger
Type
Min.~ Max.
°CDB
-14CWB~25CWB
35°CDB
Min.~Max.
°CWB
10CWB~27CWB
10CWB~27CWB
Operation range
Refrigerant
R-410A
Charge
kg
6.2
Expansion valve (electronic type)
Type
l
Type/OD
Piping
connections
Gas
Type/OD
mm
Drain
Quantity/OD
mm
Piping length
Max.
m
Power supply
Phase/Frequency/Voltage
OU - IU
1.7
Flare connection/9.52
Flare connection/15.9
Heat insulation
Hz/V
8.4
Synthetic (ether) oil
1.5
mm
7.7
Electronic expansion valve
Daphne FVC68D
Charged volume
Liquid
R-410A
4.0
Control
Refrigerant oil
ERQ250AW1
2.1
4.3
Braze connection/9.52
Braze connection/19.1 Braze connection/15.9 Braze connection/19.1 Braze connection/22.2
3/26x3
-
55
55
Both liquid and gas pipes
Both liquid and gas pipes
1N~/50/220-440
3N~/50/400
(1) Cooling: indoor temp. 27°CDB, 19°CWB; outdoor temp. 35°CDB; equivalent piping length: 7.5m (horizontal); level difference: 0m
(2) Heating: indoor temp. 20°CDB; outdoor temp. 7°CDB, 6°CWB; equivalent refrigerant piping: 7.5m; level difference: 0m
(3) Sound pressure level is a relative value, depending on the distance and acoustic environment. For more details, please refer to the sound level drawings.
(4) Sound values are measured in a semi-anechoic room.
(5) Sound pressure level is a relative value, depending on the distance and acoustic environment. For more details, please refer to the sound level drawings.
Control box
EKEXV
INDOOR UNIT
Casing
Dimensions
Weight
Sound pressure
level
Operation range
EKEXV50
Material
Unit
Unit
Nom.
Cooling
HeightxWidthxDepth
Min.~ Max.
mm
kg
dBA
EKEXV63
EKEXV80
EKEXV100
EKEXV125
Metal
401x215x78
2.9
°CDB
EKEXV140
EKEXV200
EKEXV250
45
-5.0~ 46.0
(1)The sound pressure value is the maximum value measured at 10cm from the motor.(2)Minimum and maximum piping length refer to the piping between the expansion valve kit (EKEXV) and the air handling unit(3)Equivalent piping length: refer to
the capacity connection ratio of the outdoor unit; depends on outdoor unit(4)Maximum installation height difference: See manual; depends on outdoor unit
38
ACCESSORIES
ERQ
Central drain pan
Central drain plug
Cool/heat selector
Fixing box
EKEQ
Wired remote control
ERQ100AV1
ERQ125AV1
ERQ140AV1
-
KKPJ5F180
-
EKEQFCB
ERQ125AW1
ERQ200AW1
KWC26B160
KRC19-26A6
KJB111A
ERQ250AW1
KWC26B280
-
EKEQDCB
-
EKEQMCB
BRC1D52 / BRC1E51A
BRC1D52 / BRC1E51A*
Wiring adapter for electrical appendices
-
KRP4A516
Remote sensor
-
KRCS01-1
* Cool/heat selector: required for operation.
Caution for options
-
Do not connect the system to DIII-net devices (Intelligent Controller, Intelligent Manager, LONWORKS interface,
BACnet interface…). This could result in malfunction or breakdown of the total system.
Only use the ERQ, EKEQ, EKEXV in combination with an air handling unit. Do not connect this system to other indoor units.
39
The present leaflet is drawn up by way of information only and does not constitute an offer binding upon
Daikin Europe N.V.. Daikin Europe N.V. has compiled the content of this leaflet to the best of its knowledge.
No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular
purpose of its content and the products and services presented therein. Specifications are subject to change
without prior notice. Daikin Europe N.V. explicitly rejects any liability for any direct or indirect damage, in
the broadest sense, arising from or related to the use and/or interpretation of this leaflet. All content is
copyrighted by Daikin Europe N.V.
Daikin products are distributed by:
FSC
ECPEN11-203
Naamloze Vennootschap - Zandvoordestraat 300, B-8400 Oostende - Belgium - www.daikin.eu - BE 0412 120 336 - RPR Oostende
ECPEN11-203 • 250 • 12/10 • Copyright Daikin
The present publication supersedes ECPEN10-203.
Printed on non-chlorinated paper. Prepared by La Movida, Belgium
Resp. Ed.: Daikin Europe N.V., Zandvoordestraat 300, B-8400 Oostende
Daikin’s unique position as a manufacturer of air
conditioning equipment, compressors and refrigerants
has led to its close involvement in environmental issues.
For several years Daikin has had the intention to become
a leader in the provision of products that have limited
impact on the environment. This challenge demands
the eco design and development of a wide range
of products and an energy management system,
resulting in energy conservation and a reduction of
waste.