Water Circulation Pumps & Circulators Domestic Hot Water Recirculation Systems Application, Selection & Installation Guide ©Taco Catalog # 100-41 Supersedes: 01/31/06 Effective Date: 09/24/13 Printed in USA
Domestic Hot Water Recirculation The Problem: Waiting for Hot Water Energy Down The Drain Of course, all that “waiting water” contains some heat energy (BTU’s), even if it’s only room temperature. Wasting those BTU’s and starting over with fresh, cold water to heat up requires even more heat energy. So in addition to wasting water, millions of BTU’s and energy dollars are wasted, too. It’s a common problem: turn on the faucet or shower for hot water, then wait for it to arrive.
Typical Installation & Piping One-Story with 1 Water Heater One-Story with 2 Water Heaters Multi-Story with 1 Water Heater Multi-Story with 2 Water Heaters Recirculation Piping with Indirect Water Heater Recirculation Piping with Storage Water Heater & Mixing Valve Sink Shower Tub Hot Water Supply Dish Washer Cold Water Supply Indirect Water Heater Boiler Clothes Washer Hot Water Return Circulator Pump -3-
Choosing the Correct Circulator for the Job Performance Field Information - 60 Hz 18 TOTAL HEAD — FEET 16 DOMESTIC WATER RECIRCULATION MODELS (STD) FLOW - M 3/H 1.5 2.0 2.5 3.0 3.5 4.0 4.5 6.0 1 003 5.5 2 006 3 008 5.0 4.5 3 14 4.0 12 3.5 10 3.0 2 8 2.5 2.0 6 1.5 4 0 0 2 4 6 8 10 12 FLOW - GPM 14 16 18 0.5 DOMESTIC WATER RECIRCULATION MODELS (IFC) FLOW - M 3/H 1.5 2.0 2.5 3.0 3.5 4.0 4.5 6.0 1 003-IFC 5.5 2 006-IFC 3 008-IFC 5.0 1.0 18 16 4.5 14 4.0 3 12 3.5 10 3.0 2.
Submittal Data Information ™ How SmartPlus™ works The SmartPlus circulator has a mode select toggle switch that allows for 2 operation modes. “Pulse” or “Smart” mode can be selected using the toggle switch located on the capacitor base mounted electronic control board. A yellow LED indicates which mode is selected. All operation is automatic, no manual timer or temperature setting is required.
Submittal Data Information See Taco Catalog #100-15 and Submittal Datasheet 101-150 for full details. For New or Retrofit Installations Using the existing cold water line as the return line, On Command™ is ideal for both new and retrofit installations. Typically installed at the furthest fixture from the water heater, On Command™ fits out of the way, under any bathroom vanity.
Domestic Hot Water Accessories Freedom Flange® Shut-Off Bronze Unions Half Unions Shut-Off Unions System Connection Sweat NPT 1/2” 3/4” 1/2” 3/4” 242-2 243-2 110-522BSF 110-523BSF 242-1 243-1 --110-251BF System Connection Sweat NPT 1/2” 3/4” 1/2” 3/4” 110-558 110-559 258-3 258-4 110-556 110-557 258-1 258-2 Plumb n’ Plug® Accesories Model # Analog Timer Kit Digital Timer Kit Aquastat 265-1 265-3 563-2 Freedom Flange® Shut-off Freedom Flange® Half Unions Shut-off Unions 265-1 Analog Timer
Taco Inc., 1160 Cranston Street. Cranston, RI 02920 / (401) 942-8000 / Fax (401) 942-2360 Taco (Canada) Ltd., 8450 Lawson Road, Unit #3, Milton, Ontario L9T 0J8 / (905) 564-9422 / Fax (905) 564-9436 www.taco-hvac.
