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Spec Sheet   Install Manual

Grundfos is proud to bring the comfort and savings of hot water recirculation to the existing homes with the comfort series instant hot water system. This stainless steel circulator, complete with timer and 10-foot power cord, is installed directly to the hot water discharge on the water heater.

Comfort valve is installed under the sink at the fixture furthest from the water heater, and the system uses the existing cold water line to return hot water to the water heater. Circulator pumps are specifically designed for heating systems. Suitable for circulation of hot domestic water and for circulation of liquid in cooling and air-conditioning systems.


Material: Bronze and stainless steel.-Aluminum stator housing.

-Stainless steel spherical separator.

-Stainless steel / tungsten carbide rotor

-Stainless steel, epdm, pu, ptfe, graphite rotor and impeller.

-Brass ms 58 pump housing

-Ppo isolation valve.

-Pa66/6 terminal box cover, motor cover.

-Lexan light.

-Pvc cable, cable relief.

-Epp 55 insulating cover.

-Epdm o'rings.

-Pom check valve.


-Wet rotor design

-Composite impeller.

-Eliminates and prevents corrosive effects of fresh water.

-Maintenance-free, low energy consumption, easy to install, quiet running.

-Improved performance and efficiency.

-Pre-program usage times to save power.

-No additional wiring required.

-Adds to savings by operating pump by sensing the water temperature.

-Insulation class: F.

-Flow range: 0 - 65 us gpm.

-Head range: 0'' - 72''.

-Maximum fluid temperature: 150 f (66 c).

-Minimum fluid temperature: 36 f (2 c).

-Maximum working pressure: 145 psi.

-Connection: 075'' m x 075'' fnpt.

-Tlc Timer, line cord.



-Up15-10su7p/tlc comfort series 1/25 hp recirculator.

-Recirculator engine: 1/25 hp.

-Power consumption: 25watts

-Motors: Voltage: 115volts, phase: 1.


Maximum ambient temperature: 104 °F
Ambient max at 176°F liquid: 176 °F
Maximum operating pressure: 145 psi
Flange standard: USA Threaded
Pipe connection: NPT 3/4"
Pressure stage: 10
Port-to-port length: 5 1/8 in
Liquid temperature range: 35.6 .. 150.8 °F
Density: 62.4 lb/ft³
Electrical data:
Number of poles: 2
Max. power input: 25 W
Rated power - P2: 0.04 HP
Main frequency: 60 Hz
Rated voltage: 1 x 115 V
Current in speed 3: 0.23 A
Capacitor size - run: 2 µF/400 V
Insulation class (IEC 85): F
Type of cable plug: NEMA 5-15P

Gross weight: 5.51 lb

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