Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales1 EWTP-MBYNN Air-cooled Heat Recovery

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales2 Contents A.Concept B.Equipment Overview C.Capacity Range D.Operation Range E.Specifications F.Practical Examples & Reference EWTP-MBYNN Air-cooled Heat Recovery

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales3 Criteria Hot water demand must be great enough to justify cost High enough useful waste heat temperature Cooling Load 40 0 C 45 0 C 12 0 C 70C70C Heating Load Return Supply Return A.Heat Recovery Concept

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales4 Daikin stepless single screw compressor All components optimized for use with R-407C Air heat exchanger : Cross fin coils / Hi-X tubes and PE waffle louvre fins Water heat exchanger : Brazed plate evaporator & heat recovery exchanger Double refrigeration circuit (from 400kW) EWTP MBYNNEWTP MBYNN EWTP MBYNN Double Circuit (2 Compressors)Single Circuit (1 Compressor) Heat Recovery Chillers: B.Equipment Overview

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales5 Single circuit (1 compressor) Double circuit (2 compressors) CC kW C.Capacity Range HP EWTP-MBYNN Model CC HR kW HC HR kW

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales GlycolWater Ambient (°C ) LWE (°C) Continuous Operation Area Pull-Down Area D.Operation Range - Cooling Low Ambient to -15°C Protect against freezing by: - Evaporator heater tape (std) - Glycol LWE to -10°C On special request

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales7 E. Specifications Daikin Stepless Single Screw Compressor 2pcs Brazed Plate Heat Exchangers pCO 2 Control Platform * See EWAP~MBY Presentation

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales8 Total Heat Recovery 65 to 85% Heat Recovery Lower LWE of 45 0 C 40 o C 45 o C Useful Heat Compressor Discharge Gas Partial Heat Recovery (Desuperheater) 25 to 35% Heat Recovery High LWE upto 60 0 C 50 o C 60 o C Expansion Valve Compressor Evaporator H igh P ressure L ow P ressure 7oC7oC 12 o C Condenser OR Hot Water Supply E. Specifications – Heat Recovery Principle

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales9 Economiser Heat Recovery BPHE Evaporator To Condenser From Condenser Daikin Single Screw Compressor Discharge E. Specifications -> Construction

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales10 E. Specifications - % Heat Recovery

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales11 Conventional Heat Recovery Fixed condensing temperature Conventional Heat Recovery Uncontrolled Hot water temp DAIKIN Heat Recovery Chiller Optimized condensing temperature DAIKIN Heat Recovery chiller Controlled Hot water temp Set point T (°C) Hot water & condensing temperature t 0 t 1 t 2 t 3 t 4 t 5 Saved Energy DAIKIN Heat Recovery Chiller Conventional Heat Recovery Power input PI (kW) t 0 t 1 t 2 t 3 t 4 t 5 E. Specifications – Heat Recovery Principle

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales12 Sound reduction in function of ambient temperature Sound power level (dBA) Ambient temp. (°C) E. Specifications -> Inverter Fans Standard with Heat Recovery units - Stable HP control, better part load efficiency - Smooth operation, better colour of sound - Linear sound reduction in function of ambient Further Reduction of - 3dBa

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales13 The Load Additional Heating Source OR Gas, Oil, … Electricity Cooling Heat recovery PCO² Contoller Temperature Sensor Remote Mode Switch Enable / Disable Pump Pump Contact L N A1 A2 Feedback Self adaptive control to run at optimized cooling capacity / Heat recovery ratio E. Specifications – Control Possibilities

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales14 Optimized balancing between CC & HR capacity Capacity kW High Pressure Bar 22 Bar 19 Bar HR Capacity CC E. Specifications – Optimised Control

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales15 In-Line Boiler City Mains Cold Supply Hot Supply Stratified Hot Water Storage Twin Pump Set OPHR Used during off-peak Assists inline heater Boiler Used during peak & off-peak periods Maintains tank temperature E. Specifications – Installation

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales16 Daikin’s Solution = DICN = Without Communication = Erratic Control on LWE Loss of performance at terminals No plant optimization to meet load No defined lead or standby unit No defined unit running hours Multiple Chillers LOAD 12 0 C 70C70C 70C70C70C70C HR Chiller can be given priority -> increased reliability at part load 60 0 C 50 0 C LOAD HR Chiller E. Specifications – DICN Control

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales17 q Cooling mode  fans at full speed  min condensing pressure Cooling Capacity138kW Power Input 54kW EER 2.56 Example: EWTP140MBYNN At nominal conditions: 7 o C and 12 o C chilled water & 35 ° C ambient q Heat recovery mode  increased condensing  max heating capacity Hot Water45 o C Heating Capacity148kW Cooling Capacity126kW Power Input47,8kW Hot Water60 o C Heating Capacity60,2kW Cooling Capacity121kW Power Input 51kW COP = 5.73 %HR = 85% COP = 3.55 %HR = 35% F. Practical Examples

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales18 F.Practical Examples - Simple Payback Based on: Energy Consumption of 0,15€ per kWhr 4hrs operation at 100% -> assume multiple chiller installation Exceptional Investment for Customer! Avg Payback of option OPHR: Hot Water 40/5042 Days or 8 weeks Hot Water 50/60102 Days or 20 weeks Our Findings Avg Payback of Chiller + OPHR: Hot Water 40/50 1 Year Hot Water 50/60 2,5 Years

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales19 New Zealand Application Mudhouse-River Co-operative 3 x EUWA200MZY Cooling Mode Total Cooling = 1.5MW HR Mode Total Cooling = 1.4MW Total HR = 0.8MW Conditions LWE = -4 o C LWC = o C 1 EUWA200MZY unit produces 15,000,000 l/yr Affiliate: Daikin Australia Installer: Martella

Air conditioning – Refreshes your life EWTP MBY Applied Systems Sales20 Large Air-Cooled Heat Recovery Chillers EWTP110~540MBY 1. R-407C: the good choice ! 2. High specifications 3. High Quality Components 4. Useful Options