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Compact white rectangular tankless water heater with front control panel and bottom pipe connections

Chronomite

Chronomite SR-15L/277 HTR-I Electric Tankless Water Heater 80

SKU CH-PT69-CDKZW

Electric tankless water heater for undersink use delivering 1.5 gpm at 277 V with a 0.35 gpm activation threshold and factory-set output between 140 and 160 °F

  • Delivers instant hot water at 1.5 gpm maximum flow rate
  • Activates automatically with only 0.35 gpm minimum flow activation
  • Provides precise temperature control between 140 and 160 degrees Fahrenheit
  • Fits tight spaces with compact 6.25 by 9.63 by 2.75 inch dimensions
  • Operates on standard 277 volt single-phase commercial power supply

Undersink electric tankless heater

The Chronomite SR-15L/277 HTR-I is a compact electric tankless water heater designed for undersink installation. It operates on a 277V AC single-phase supply and delivers hot water on demand for commercial or residential hospitality sinks and manual hand-washing faucets. The unit measures 6.25 inches high, 9.63 inches wide and 2.75 inches deep.

Suited for single low-flow fixtures

This model suits installations that need instantaneous hot water at a single lavatory or hand-washing station with a flow demand up to 1.5 gpm. It is not for buyers who need higher flow rates for showers or multiple simultaneous outlets, or for sites without a 277V electrical service.

1.5 gpm maximum flow rate

The heater activates at a minimum flow of 0.35 gpm and provides a maximum flow rate of 1.5 gpm. Delivered water temperature is factory-set between 140 and 160 degrees Fahrenheit with no adjustable thermostat. The unit draws 15 amps at 4,150 watts.

How it compares

Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.

Price $218.99
Pricier than about 88% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameCHRONOMITE LABS
Product typeOther

Questions about this item

What size cold-water inlet does the SR-15L/277 HTR-I need for connection?

The unit uses a 3/8 in cold inlet, so supply lines or fittings must match that diameter.

How is the heater mounted and what wiring step is often missed?

It installs undersink with a 15 A, 277 V single-phase circuit; the step frequently missed is confirming the breaker and wire gauge match the 4,150 W load before turning on power.

Which internal component will need replacement over time and what triggers it?

The heating element is the primary wear item; scale build-up from hard water at flow rates above .35 gpm gradually reduces efficiency until the element must be swapped.

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