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Grundfos UP 15-10 SU7PTLC-1 — 595916 Comfort System Hot Water Recirculation Pump

Grundfos UP 15-10 SU7PTLC-1 — 595916 Comfort System Hot Water Recirculation Pump

by Grundfos
SKU 595916
$ 321.25 - $ 321.25
$ 321.25
$ 321.25 - $ 321.25
$ 321.25

Grundfos UP 15-10 SU7PTLC-1 Comfort System (595916) — Instant Hot Water Recirculation Pump

The Grundfos 595916 Comfort System provides instant hot water to every fixture, eliminating wait time and water waste. Featuring an energy-efficient motor, built-in timer, and comfort valve, this plug-and-play system is ideal for residential retrofits where dedicated return lines aren’t available. 

Key Features & Benefits

  • Instant hot water delivery — no wasted time or gallons down the drain
  • Includes Comfort Valve for retrofit use without a dedicated return line
  • Built-in timer for automatic operation and energy savings
  • Quiet, maintenance-free operation
  • Durable stainless-steel pump housing for long service life
  • Plug-in line cord simplifies installation

Applications

  • Residential hot water recirculation
  • Homes without a dedicated return line
  • Retrofit and upgrade projects for improved water efficiency
  • Tanked Water Heaters only. Not for use with Tankless Units

Specifications

Model UP 15-10 SU7PTLC-1 Comfort System
Item Number 595916
Voltage 115 V, 60 Hz
Connection Size 3/4” 
Housing Material Stainless steel
Includes Pump with line cord, timer, and comfort valve kit

 

Common Questions

Q: Do I need a return line for this system?
A: No — the included Comfort Valve allows installation without a dedicated return line.

Q: How does the timer help energy efficiency?
A: The built-in timer lets you run the pump only when hot water is typically needed, reducing power and water waste.

Q: Can it be used with tankless systems?
A: This system is designed primarily for traditional water heaters.

 

Enjoy instant hot water and reduce waste — the Grundfos Comfort System delivers convenience, comfort, and savings in one easy-to-install solution.

This item replaces: 500800, 99452459

Electrical data
Max. power input 25 W
Main frequency 60 Hz
Rated voltage 1 x 115 V
Current in speed 3 0.23 A
Capacitor size - run 2 µF
Number of poles 2
Insulation class (IEC 85) F
Ex-protection standard CONTACT
Thermal protec internal
Cable type Connecting cord with plug
Type of cable plug Nema 5-15P

Technical
Speed Number 1
Rated flow 3.17 US gpm
Max flow 6.16 US gpm
Rated head 2.661 ft
Head max 5.25 ft 3.281 ft
Approvals CUL, NSF, UPC

Installation
Maximum ambient temperature 104 °F
Ambient max at 176°F liquid 176 °F
Maximum operating pressure 145.04 psi
Type of connection NPT
Pipe connection 3/4" NPSM
Pressure rating for connection PN 10
Port-to-port length 5 1/8 in

Liquid
Pumped liquid Water
Liquid temperature range 35.6 .. 150.8 °F
Selected liquid temperature 140 °F
Density 61.35 lb/ft³

Gross weight: 5.51 lb

View Spec Sheet (PDF)
View Install Manual (PDF)

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