1 Multi-use Facility

2 Occupancy – 140 persons Building Characteristics Single story 20,000 square feet (250’ x 80’) Standard construction

3 What we will cover: Types of hydronic heating systems Closed loop perimeter heating Closed loop radiant systems Water source heat pumps Ground source heat pumps Piping methods Constant speed/constant volume Constant speed/variable volume Variable speed/variable volume Retrofit market Significant opportunities! Magna3 advantages

4 HW Closed Loop Perimeter/ Fan Coil System Optional Variable Speed Components ∆P Sensor Modulating Control Valve (typ.) Secondary Pump Common Pipe 2-way or Two Position Valve (typ.) Boiler Primary Pumps Expansion Tank Air Separator Balance Valve (typ.) Boiler Load (typ.)

Manual balance valve 3-way control valve 2-way control valve Air separator System piping components

6 Fan coil VAV box

7 HW Closed Loop Radiant Floor/Snow Melt System Radiant Floor or Snow Melt Panels Boiler #2Boiler #1 P1 P2 Secondary Pump Mixing Valve Primary Pumps P1 & P2* Redundant* Expansion Tank Air Separator Common Pipe

8 HW Closed Loop Radiant Floor/Snow Melt System

9

10 Heat Pumps 60ºF HPWS 53ºF HPWR Heat Pump 160ºF HHWR 180ºF HHWS 53ºF CHWR Fan Coil Unit 45ºF CHWS Air 60ºF HPWS 67ºF HPWR 60ºF HPWR 60ºF HPWS Heat Pump Cooling Heating

Heat Pump Operation 11 53ºF HPWR Fan Air 60ºF HPWS Heating Water to Refrigerant Heat Exchanger Compressor Reversing Valve Refrigerant Coil Expansion Valve Refrigerant Piping

12 Heat Pumps Types Water source Boiler and chiller Ground source Bore field / pond loop / well Hybrid A ground source plus supplemental heating or cooling

Closed Circuit Cooling Tower WSHP Buffer Tank ( Optional )) Compression Tank 13 Water Source Heat Pump (WSHP) Boiler WSHP Make-up Water Primary Pumps P1 & P2* Redundant* Expansion Tank Air Separator

14 WSHP Components Cooling Towers Boilers

15 Ground Source Heat Pump (GSHP) Bore Field GSHP Buffer Tank ( Optional ) Compression Tank GSHP Make-up Water HP Loop Pumps P1 & P2* Redundant* Expansion Tank Air Separator Bore Field Loop Pump

16 GSHP

17 Hybrid Ground Source Heat Pump Bore Field GSHP Buffer Tank ( Optional ) Compression Tank GSHP Make-up Water HP Loop Pumps P1 & P2* Redundant* Expansion Tank Air Separator Bore Field Loop Pump

18 Hydronic Piping Systems Types: Constant Speed/Constant Volume (CS/CV) Piping & equipment requirements Deficiencies Energy usage Constant Speed/Variable Volume (CS/VV) Piping & equipment requirements Advantages Energy usage Variable Speed/Variable Volume (VS/VV) Piping & equipment requirements Advantages Energy usage

19 CS/CV Piping System 3-way Valve Load Balance Valve (Typ.) Expansion Tank Air Separator Boiler 2* Boiler 1 Primary Pumps P1 & P2* * Redundant

20 CS/CV System Deficiencies High return water temperatures Robs hot water from other coils at part loaded conditions Increases flow Adds additional boilers on line Boiler performance is reduced

21 CS/CV System Load for Multi-use Facility: Chicago, IL Plot load profile Select pump for ft

Flow (gpm) Head (ft) ft CS/CV Pump 97%

23 Pump Energy Consumption - CS/CV CS/CV

24 CS/VV HW Piping Systems Primary Pumps P1 & P2* *Redundant Return Supply Secondary Pumps P1 & P2* Boiler 1 Boiler 2* Expansion Tank Air Separator

25 CS/VV Pumping Systems Add secondary pumps Add common pipe Add system bypass Add 2-way valves Eliminate 3-way valves…or

26 CS/VV Pumping Systems Eliminate 3-way valves Disable 3-way valves Shut bypass valve Disconnect bypass pipe Actuator may be undersized for 2-way operation Does this make $ense?

Flow (gpm) Head (ft) ft CS/VV Pump Curve 97%

28 CS/VV Advantages Lower return water temperatures Minimizes flow to coils Decreases secondary flow Reduces boilers on line Boiler performance is increased Ease of system operation Energy savings Preferred piping method

29 Pump Energy Consumption - CS/VV CS/CV CS/VV

30 VS/VV Pumping Add: Variable frequency drive (VFD) Programmable logic controller (PLC) Differential pressure sensors (∆P) Direct digital controls (DDC) Save 75% AOC versus CS/CV!

31 VS/VV Hot Water Systems Secondary Pumps VSP1 & VSP2* ΔP Sensor Air Separator Expansion Tank *Redundant Return Supply Boiler 1 Boiler 2* VS Pumps And Controls

32 Pump Curve Summary CS/CV ft CS/VV VS/VV ft ft 54 9 ft

ft Flow (gpm) Head (ft) VS/VV Pump Curve Magna

34 VS/VV Advantages Optimizes return water temperatures Optimizes flow to coils Decreases secondary flow Reduces boilers on line Boiler performance is increased Ease of system operation Optimum energy savings

35 Pump Energy Consumption - VS/VV CS/CV CS/VV VS/VV

36 VS/VV Advantages Cost effective design Primary-secondary pumping Common pipe design 2-way valve operation Save 75% of pumping energy over CS/CV systems Save 50% of pumping energy over CS/VV systems

37 Additional System Savings Additional sources of energy savings Boiler operation ΔT optimization Sources of first cost savings Pump sizing Boiler sizing Valve sizing Pipe sizing

38 VS/VV Pumping Add: Variable frequency drive (VFD) Programmable logic controller (PLC) Differential pressure sensors (∆P) Direct digital controls (DDC) Or add…

39 Demand More Magna3!

40 HW Systems w/ Magna3 Secondary Pumps VSP1 & VSP2 Primary Pumps MP1 & MP2* *Redundant Return Supply Boiler 1 Boiler 2* Expansion Tank Air Separator Magna3 VS Pumps With Controls

41 VS/VV Retrofit Opportunities Converting CS/CV to VS/VV Steam systems 3 pipe hot/chilled water systems One pipe hot water systems 3-way valve hot water systems Uncontrolled radiant systems Over-sized boiler pumps

42 VS/VV Retrofit Opportunities Converting CS/VV to VS/VV CS 2-way valve HW systems CS three pipe systems Systems with poor ΔT control Systems with over-sized pumps Systems with local ΔP sensors Systems with single VS pumps

43 Demand More Magna3: Features & Benefits