9/19/2015 1 Variable Speed Lowdown. TYPICAL EUROPEAN SYSTEM TRV’s, No T-stats Pump runs 24/7 (6k...
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Transcript of 9/19/2015 1 Variable Speed Lowdown. TYPICAL EUROPEAN SYSTEM TRV’s, No T-stats Pump runs 24/7 (6k...
![Page 1: 9/19/2015 1 Variable Speed Lowdown. TYPICAL EUROPEAN SYSTEM TRV’s, No T-stats Pump runs 24/7 (6k hrs) TRV’s modulate.](https://reader035.fdocuments.in/reader035/viewer/2022062516/56649e615503460f94b5d154/html5/thumbnails/1.jpg)
04/19/23 1Variable Speed LowdownVariable Speed Lowdown
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TYPICAL EUROPEAN SYSTEM
TRV’s, No T-stats
Pump runs 24/7 (6k hrs)
TRV’s modulate
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TYPICAL US SYSTEM
Series loop, fin-tube baseboard CI bb/radiators/convectors Radiant floor heating
Mutliple zones, circs or ZV’s
Approx 2,100 – 2,500 hrs of operation
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WHY USE A VARIABLE SPEED CIRCULATOR? Good question…
Best applications… Zone valve or RFH Zone pump?
Electrical savings?
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5 007’s @ 80W each = 400 Watts
400 Watts ÷ 1000 = 0.4 kW
ELECTRICAL SAVINGS????
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04/19/23TACO – EMERSON SWAN MEETING 6
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5 007’s @ 80W each = 400 Watts
400 Watts ÷ 1000 = 0.4 kW
0.4 kW × 2,500 “on” hrs = 1,000 kWh
1,000 kWh × 15¢/kWh = $150.00/yr
ELECTRICAL SAVINGS????
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1 007 (80W) + 5 Zone Sentry zone valve (1.44W each)= 87.2 Watts
87.2 Watts ÷ 1000 = 0.0872 kW
0.0872 kW × 2,500 “on” hrs = 218 kWh
218 kWh × 15¢/kWh = $32.25/yr
WITH ZONE VALVES…
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1 Pump (20W) + 5 Zone Sentries (1.44W each)= 27.2 Watts
27.2 Watts ÷ 1000 = 0.0272 kW
0.0272 kW × 2,500 “on” hrs = 68 kWh
68 kWh × 15¢/kWh = $10.20/yr
WITH SUPER DUPER ECM…
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5 ZONE SYSTEM
70,000 BTUH
7 GPM @ 5’ head
Where does systemreally work?
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• GPM = BTUH
• T = BTUH
• T = 70,000
• < 14.50
T × 500
GPM 500
9.5 500
NUMBERS DON’T LIE…
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1 ZONE CALLING
10,000 BTUH
1 GPM @ 5’ head
Where does itreally work?
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• GPM = BTUH
• T = BTUH
• T = 10,000
• 100
T × 500
GPM 500
2 500
NUMBERS STILL DON’T LIE…
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The Result?
And And when it’swhen it’s353500 out? out?
And And when it’swhen it’s353500 out? out?
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SO WHAT SO WHAT ABOUT THE ABOUT THE
VR 1816?VR 1816?
04/19/23 15
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04/19/23 16
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SO, SO, PROGRAMMING PROGRAMMING
THE VR THE VR 1816????1816????
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KEEP IT SIMPLE…
CP Settings – zone pump: 85’ total length = CP I (5’ hd) 165’ total length = CP II (10’ hd) 250’ total length = CP III (15’ hd)
Based on ML × 1.5 × .04
04/19/23TACO – EMERSON SWAN MEETING 21
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04/19/23 22
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STEPLESS/INFINITE ADJUST
Min = 003 Low = 006 Med = 007/0015 Low High = 008/0015 Med Max = 0015 Hi Or for guys who actually
calculate flow & head…
04/19/23TACO – EMERSON SWAN MEETING 23