Variable Refrigeration Flow Systems Overview 10112016 Executed by

Variable Refrigeration Flow Systems Overview 10/11/2016 Executed by This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Data Power Technology Illinois “Aggressively, relentlessly anticipating and exceeding our customer’s and client’s expectations every day, while always building trust. ” This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Agenda o What is VRF o VRF Components n n n Condensing Units Fan Coil Units Branch Selector Boxes Controllers Specialties n n Layouts Condensing Unit Options o Application overview o Ventilation Air o Energy Efficiency and Savings This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

What is VRF o “Air conditioning on a dimmer switch” o DC inverter driven compressor with load matching software algorithm that varies the output to match multiple fan coil unit capacity demands. o Pulse modulated electronic expansion valves control refrigerant flow through evaporator coil. o Branch controller unit changes flow of refrigerant based on the demands of the space. o Transfers energy through refrigerant allowing for heat recovery during simultaneous mode operation. o Extremely efficient in part load conditions. This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

What is VRF? o Heat Pump – 2 Pipe – All Heat or All Cool. n Y branches n Headers o Heat Recovery – 3 Pipe – Heat or Cool. n Y branches n Branch selector boxes This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Components o Condensing Unit o o o Single, Dual, Triple frame Air Cooled Water Cooled 208 -230 V 3 Phase 460 V 3 Phase This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Fan Coil Units o Capacities from 0. 5 to 8 Tons. o Ducted. o Non-Ducted. n Ceiling, Wall, Floor mounting. o Air Processing Ducted Units. n Ventilation Air. o 208 -230 Single Phase. This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Heat Pump System This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Simultaneous Cooling Based This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Simultaneous Heating Base This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Branch Selector Boxes o Single Circuit Box o Multiple Circuit Box o Home Run Multiple Circuit This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Controls o Local- Room Controllers. o Central Controllers. o Integration Devices. n BACNet, Lon, Modbus. o Digital input/output controllers. o Dry Contacts. n Economizer control. n Occupancy sensors. n Auxiliary heat control. o Power consumption metering. This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Specialties o Special purpose fan coil units n Water Heating/cooling. o Domestic hot water (with 3 rd party HX tank). o In Floor / sidewalk snow melt, radiator. n 3 rd Party AHU Integration o VRF Condensing unit connects to AHU coils providing capacity control. o Part of VRF system or stand alone. This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Application Overview o Office Space 9, 600 Sqft. o 30 Zones. n n Office. Conference. Room. o Individual zone control. o Simultaneous heating and cooling. This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

RTU-VAV o (5) Packaged RTU n n Gas Fired DX Cooling o (30) VAV n SCR Electric Heat This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

VRF Cassette o (30) 4 -Way Ceiling Cassette o Ventilation Air required. o Heat Recovery. o Independent zone control. This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Home Run Heat Recovery o o o Centrally Located Branch Selector. Rigid ACR from CU to HR/BS box. Soft Copper Line Sets from HR/BS box to Fan Coil. 208 -230 V 1 Ph connections on HR/BS and IDU. BS/HR Condensate drainage needed. This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Single Circuit Heat Recovery o o o Zone located HR/BS boxes. Rigid ACR from CU to HR/BS box (3 Pipe). . Soft Copper Line Sets from HR/BS box to Fan Coil. 208 -230 V 1 Ph connections on HR/BS and IDU. BS/HR Condensate drainage NOT needed. This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Multiple Circuit Heat Recovery o o o Zone or Centrally Located HR/BS boxes. Rigid ACR from CU to HR/BS box. Soft Copper Line Sets from HR/BS box to Fan Coil. 208 -230 V 1 Ph connections on HR/BS and IDU. BS/HR Condensate drainage NOT needed. This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Condensing Unit Options o Air Cooled n Ranges from -13°F to 65 F° heating mode. n Cooling range from 14°F to 118°F. o Cooling down to -9. 9°F with low ambient kit. n Capacity decreases in heating mode as outdoor ambient temperature drops below 14°F. n Requires defrost. n Can be placed in enclosure. This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Outdoor Placement- Air Cooled o Account for Snow Fall. n Access for maintenance. n Prevailing Winds. This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Placement in enclosures o Inlet and Outlet Louvers and Dampers with Bypass Damper System. This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Water Cooled Condensing Unit o EWT Ranges down to 23°F. o Loss of nominal capacity with Glycol. o Closed Loop n Geothermal o Open Loop n HX Required o Indoor Installation This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Ventilation Air o Refer to ASHRAE Standard 62. 1 2016 Ventilation for acceptable indoor air quality. https: //www. ashrae. org/resources-publications/bookstore/standards-62 -1 --62 -2 o Ventilation air can be direct or decoupled from the VRF fan coil units. o Examples of Ventilation air systems n n DOAS with an energy recovery wheel. DOAS with an energy recovery core. ERV/HRV. VRF outdoor air processing unit. This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Energy Efficiency o Measured in IEER. AHRI Standard 1230 -2010 with Addendum 2 n Integrated Energy Efficiency Ratio n Measured in EER, IEER, SCHE and COP for Heating. n https: //www. ahridirectory. org/ahridirectory/pages/vr fhp/default. Search. aspx o Elimination of duct losses estimated at 10 -20% airflow in some systems o Variable speed compressor spends most of it’s time between 40 -80% o Estimated 30 -35% savings in annual operation costs vs VAV systems This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Questions Thank you! Steven Blanchard Data Power Technology Illinois 8105 N University St, Peoria, IL 61615 Sblanchard@DPTMechanical. com 309 -692 -2685 515 -491 -4478 This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.

Thank You o References n n n http: //www. gsa. gov/portal/media. Id/197399/file. Name/GPG_Variable_Refrigerant_Flow_1 2 -2012. action https: //www. ashrae. org/resources--publications/bookstore/standards-62 -1 --62 -2 ASHRAE Journal. April 2007. Variable Refrigerant Flow Systems, By William Goetzler. http: //www. lg-vrf. com/ http: //www. mitsubishipro. com/ https: //www. daikin. com/products/ac/lineup/vrv/ http: //www. airstagevrf. com/ http: //york-vrf. com/ http: //www. ahrinet. org/App_Content/ahri/files/Certification/OM%20 pdfs/VRF_OM. pdf http: //www. ahrinet. org/App_Content/ahri/files/STANDARDS/ANSI_AHRI_Standard _1230_2010_with_Add_2. pdf http: //www. achrnews. com/articles/125139 -the-science-of-hvac-efficiency-ratings This document is proprietary and intellectual property of DPT Mechanical and not to be distributed, duplicated, or used by entities other than DPT Mechanical. All rights reserved. Copyrighted 2013.