Page 494 - General Catalogue

Integration with third party air handling units

Integration of ERQ and VRV in third party air handling units

a wide range of expansion valve kits and control boxes

Combination table
Control box Expansion valve kit
EKEQDCB EKEQFCBA EKEQMCBA EKEXV50 EKEXV63 EKEXV80 EKEXV100 EKEXV125 EKEXV140 EKEXV200 EKEXV250 EKEXV400 EKEXV500 Mixed connection with
Z control W,X,Y control Z control - - - - - - - - - - VRV indoor units
ERQ100 P P - - P P P P - - - - -
1-phase ERQ125 P P - - P P P P P - - - -
ERQ140 P P - - - P P P P - - - - Not possible
ERQ125 P P - - P P P P P - - - -
3-phase ERQ200 P P - - - - P P P P P - -
ERQ250 P P - - - - - P P P P - -
VRV III - - n1 n1 n1 n1 n1 n1 n1 n1 n1 n1 n1 Mandatory
VRV IV H/P / Possible (not
VRV IV W-series - P (1 -> 3) n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 n2 mandatory)
VRV IV S-series
VRV IV H/R
VRV IV i-series - n1 - n1 n1 n1 n1 n1 n1 n1 n1 n1 n1 Mandatory
• P (pair application): combination depends on the capacity of the air handling unit
• n1 (multi application) - Combination of AHUs and VRV DX indoors (mandatory). To determine the exact quantity please refer to the engineering data book.
• n2 (multi application) - Combination of AHUs and VRV DX indoors (not mandatory). To determine the exact quantity please refer to the engineering data book.
• Control box EKEQFA can be connected to some types of VRV IV outdoor units (with a maximum of 3 boxes per unit). Do not combine EKEQFA control boxes with VRV DX indoor units, RA indoor units or hydroboxes
Capacity table

Cooling Heating
Allowed heat exchanger Allowed heat exchanger Allowed heat exchanger Allowed heat exchanger
3
EKEXV Class capacity (kW) volume (dm ) 3 EKEXV Class capacity (kW) volume (dm )
Minimum Standard Maximum Minimum Maximum Minimum Standard Maximum Minimum Maximum
50 5.0 5.6 6.2 1.33 1.65 50 5.6 6.3 7.0 1.33 1.65
63 6.3 7.1 7.8 1.66 2.08 63 7.1 8.0 8.8 1.66 2.08
80 7.9 9.0 9.9 2.09 2.64 80 8.9 10.0 11.1 2.09 2.64
100 10.0 11.2 12.3 2.65 3.30 100 11.2 12.5 13.8 2.65 3.30
125 12.4 14.0 15.4 3.31 4.12 125 13.9 16.0 17.3 3.31 4.12
140 15.5 16.0 17.6 4.13 4.62 140 17.4 18.0 19.8 4.13 4.62
200 17.7 22.4 24.6 4.63 6.60 200 19.9 25.0 27.7 4.63 6.60
250 24.7 28.0 30.8 6.61 8.25 250 27.8 31.5 34.7 6.61 8.25
400 35.4 45.0 49.5 9.26 13.2 400 39.8 50.0 55.0 9.26 13.2
500 49.6 56.0 61.6 13.2 16.5 500 55.1 63.0 69.3 13.2 16.5
Saturated evaporating temperature: 6°C Saturated condensing temperature: 46°C
Air temperature: 27°C DB / 19°C WB Air temperature: 20°C DB
EKEXV - Expansion valve kit for air handling applications

Ventilation EKEXV 50 63 80 100 125 140 200 250 400 500
Dimensions Unit mm 401x215x78
Weight Unit kg 2.9
Sound pressure level Nom. dBA 45
Operation range On coil Heating Min. °CDB 10 (1)
temperature Cooling Max. °CDB 35 (2)
Refrigerant Type / GWP R-410A / 2.087,5
Piping connections Liquid OD mm 6.35 9.52 12.7 15.9
(1) The temperature of the air entering the coil in heating mode can be reduced to -5°CDB. Contact your local dealer for more information. (2) 45% Relative humidity.

EKEQ - Control box for air handling applications

Ventilation EKEQ FCBA DCB MCBA
Application See note Pair Multi
Outdoor unit ERQ / VRV ERQ VRV
Dimensions Unit mm 132x400x200
Weight Unit kg 3.9 3.6
Power supply Phase/Frequency/Voltage Hz/V 1~/50/230

The combination of EKEQFCBA and ERQ is in pair application. The EKEQFCBA can be connected to some type of VRV IV outdoor units with a maximum of 3 control boxes. The combination with DX indoor units,
hydroboxes, RA outdoor units, ... is not allowed. Refer to the combination table drawing of the outdoor unit for details.

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