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ERX-condensing units

ERX-condensing units. Strategic Marketing. ERX. ERX. ERX. ERX. Concept Product range Combination table Piping length Control possibilities Benefits. 1. Concept. Pair application : ERX + EV + control box + AHU. ERX are R410A inverter units for use with AHU in pair applications

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ERX-condensing units

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  1. ERX-condensing units Strategic Marketing

  2. ERX ERX ERX ERX • Concept • Product range • Combination table • Piping length • Control possibilities • Benefits

  3. 1. Concept Pair application: ERX + EV + control box + AHU ERX are R410A inverter units for use with AHU in pair applications ERX is always used in combination with expansion valve kit (EV kit) and a control box ERX can not be used with standard Sky Air indoors DAikin Supply Field Supply ERX R410A inverter Sky Air Outdoor unit Air Handling Unit Refrigerant piping EV kit Control box F1F2 communication

  4. 1. Concept Multi application : standard VRV outdoors + EV + control box : Field Supply DAikin Supply Standard VRV Outdoor unit Air Handling Unit Refrigerant piping EV kit Control box F1F2 communication VRV indoor VRV indoor

  5. 2. Product range A. ERX Condensing Units (pair applications) ERX 100,125,140 (1 phase) ERX 125, 200 (3 phase) ERX 250 (3 phase)

  6. 2. Product range B. EV Kit and Control Box (Pair and Multi) EV Kit Control box

  7. Control box Expansion valve kit Outdoor unit EKEXDCBV3 EKEXFCBV3 EKEXV50 EKEXV63 EKEXV80 EKEXV100 EKEXV125 EKEXV140 EKEXV200 EKEXV250 P P P ERX100A9V1B P P - P - - - 100 P P P P 1 ph ERX125A9V1B P P - P - - 125 Pair P P P ERX140A9V1B P P - - P - - 140 (C/O) P P P P ERX125A7W1B P P - P - - 125 3 ph P P P P ERX200A7W1B P P - - - P 200 P P P ERX250A7W1B P P - - - - P 250 n n n n n n n n n n 5 hp n n n n n n n n n n 8 hp n n n n n n n n n n 10 hp Multi 3 ph VRV outdoor n n n n n n n n n n 12 hp (C/O) n n n n n n n n n n 14 hp n n n n n n n n n n 16 hp n n n n n n n n n n 18 hp P: Pair : Combination depending on AHU coil volume (details will be clarified in TW drawings) n: Qty determined by connection ration or maximum number of indoor units. (in combination with VRV-outdoor, the EKEXV -kit is considered as one of the indoor units) 3. Combination table To allow max connection to AHU a range of expansion valve kits are available for each outdoor ERX100 : EV 63 – 125 ERX125 : EV 63 – 140 ERX140 : EV 80 – 140 ERX200 : EV 100- 250 ERX250 : EV125 - 250

  8. Allowable height AHU ≤ 5 m Total system : ≤ 30 m (Outdoor unit can be above or below the AHU) EXV-kit outdoor 4. Piping length Piping limitations: Pair Application (Sky Air) EXV-kit A B E Daikin condensing unit EKEXFCB EKEXDCB AHU C D F DDC Piping Communication A B C D E F 100 ERX 1 phase 125 length : 5 < A ≤ 50m Depend On DDC 140 ≤ 100 m ≤ 20 m ≤ 20 m length : ≤ 5 m 125 ERX 3 phase 200 250

  9. 4. Piping length Piping limitations: Multi Application (VRV) EXV-kit A B Allowable height E AHU 1 ≤ 5 m Daikin condensing unit EKEXMCB AHU C D Total system : ≤ 40 m (outdoor unit can be above or below the AHU) EXV-kit 1 ≤ 15 m AHU n F ≤ 5 m DDC EXV-kit n KIT n outdoor Indoor 1 Piping Communication A+B B C D E F Depend On DDC C/O 5~18 HP VRV Wiring policy Consider Same as indoor length : ≤ 5 m ≤ 50 m ≤ 50 m VRV-III

  10. AHU Te Ts Td Tr DDC ROOM 5. Control possibilities 3 control systems can be selected : X: Control of air Temperature (Td, Ts, Tr) with external controller (DDC)  PAIR Y: Control of evaporating Temperature (Te) with Daikin controller  PAIR Z: Control of air temperature (Ts, Tr) with Daikin controller  PAIR & MULTI

  11. Te Ts Td Tr DDC ROOM 5. Control possibilities Example: Control X (pair) Control box EV kit

  12. Te Ts Td Tr ROOM 5. Control possibilities Example: Control Y (pair) (Te : 3~8°C) Control box EV kit

  13. Te Ts Td Tr Daikin ROOM 5. Control possibilities Example: Control Z (pair and multi) Control box EV kit Controller

  14. 5. Control possibilities System overview Type of control Supply of parts Field X Y Z supply Daikin Pair system : ERX System A: System O O O Multi system : VRV System B: - - O Control parameter Discharge air control (Td) O - - suction air control (Ts) O - O Room air control (Tr) O - O Evaporating temp control (Te) - O - DDC (digital controller) Components for control O - - field Air thermistor O - - field - - Air thermistor O Daikin - (2) - (2) (5) BRC1D O (3) Daikin KRP4A (remote On/Off) - - O (4) Daikin (2) not needed for control purpose (only for service: fault code detection) (3) required: to be ordered separately as option EKEXFCBAV3 EKEXDCBAV3 (pair) EKEXMCBV3 (multi) (4) possible, but not required: to be ordered separately as option. (customer can (5) Te setting changed by BRC1D (=service tool) select X or Y)

  15. T = Td, Ts or Tr measured T 0~10 V measured DDC set 5. Control possibilities Control systems type description PRO CONTRA X By DDC controller : 0-10 V control - possibility for Td - higher cost (DDC Control type control is needed) output - flexibility in 10V applications 5V 0V T -ΔT Tset +ΔT ΔT ΔT = T - T set measured Y - Low cost Control type Fixed Te no air temp control Te = user setting : 3 ~8 °C - no BRC needed - BRC/KRP4 Z using BR1CD + KRP4 Low cost Control type needed (remote on/off) - no possibility for Td control

  16. 6. Benefits Customer benefits • 1. Inverter outdoors (ERX or VRV) • 2. Pair (ERX) and multi applications (VRV) • 3. Extended control systems possible : • control on evaporating temperature • control on air temperature (suction / discharge / room temperature) • Compared to Chillers : • Same small temperature gradient and control possibilities • No hydraulic components • Better price setting

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