10 16 2014 0830 John Manning Hydronic System Design

8/18/2019 10 16 2014 0830 John Manning Hydronic System Design

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…serving the eothermal Designer & Contractor Community !!!


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Hydronic System Desig

Geothermal Nuancespresented by

John D. Manning, PE

President

Earth Sensitive Solutions, LLC

October 15, 2014


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The Grea

Hydron

Heis

Train Robbery by F


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Do you design or

install hydronicsystems using

water-to-waterheat pumps?


5/27…serving the eothermal Designer & Contractor Community !!!

If yes,do you follow the

manufacturer’sinstructions?



The distribution

system will dictate

the required

temperature to meet

the load


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T

120

o

F

120

o

F

130

o

F

120

o

F

110

o

F


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Key Question

Why are we sending the hotte(or Coldest) water in the systeback to the buffer tank where

is mixed and diluted to a lowetemperature before we send i

to the load?


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But, first….

Let’s discuss theimportance of the

distribution system tooverall system

performance


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Understanding the Load

• !"#$% '(()*+',-. */ 0.*10# '.2 30/4 5# 60))% 0.2#$/4-

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8*2# %-0$ /*./MMM

L t’ i k R di t S t


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Let’s pick a Radiant System

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)3* +4556 768( )3*

3923* :(;92)*

?9*** @8A


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Let’s pick a Fan Coil

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T

110

o

F

110

o

F

120

o

F

120

o

F

Wh i thi I t t?


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Why is this Important?

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Special Thanks to

Jens Ponikau

and How about Controls?


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…and How about Controls?

Important Strategies:•

Outdoor Reset•

Demand Enabled

• WILO Stratos Pump

• Heat Pumps• Hydronic

Supplemental Heat

Delayed by 3 to 6

Hours

• Manual Changeover to

Cooling


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We

Could

Build

One

ForYou.

f d


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…or for a more modest system….•

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W42B C.64S


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95


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Bottom LineIt is often said that geothermal costs too muc

Frankly, I think we are failing to maximi

the value. Through simple design

techniques and a fundamental

competence in the design community w

can sell the technology at a competitiv

price and actually deliver outstanding

value!


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The Power of Choice Thank you !!!

Questions ????

Documents

10 16 2014 0830 John Manning Hydronic System Design