Chronomite CM-15L/277 Instant-Flow® Tankless Water Heater
Reliable, Energy-Efficient Hot Water for 277V Commercial Point-of-Use Applications
The Chronomite CM-15L/277 provides instant, efficient hot water for handwashing stations in commercial, institutional, and industrial facilities using 277V electrical systems. With a higher wattage output than the CM12L/277, this unit offers a greater temperature rise—ideal for facilities in colder climates or requiring hotter water. It combines compact design, vandal-resistant housing, and 99% energy efficiency in a unit built for demanding point-of-use applications.
Performance Benefits
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Feature
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Specification
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Benefit
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Power Rating
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15 Amps, 277 Volts, 4,155 Watts
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✓ Increased heating capacity for colder inlet temperatures
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Temperature Rise
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~73°F at 0.40 GPM (approximate)
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✓ Ideal for commercial sinks and cooler water sources
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Activation Flow Rate
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0.20 GPM
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✓ Compatible with water-saving, low-flow fixtures
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Size
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6-1/4" (H) x 9-5/8" (W) x 2-3/4" (D)
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✓ Space-saving for under-sink or cabinet installation
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How It Works: Instant Heating Technology
Stage 1: Flow Activation
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Function: Activates instantly at 0.20 GPM
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Benefit: Zero energy use when not in operation—no standby heat loss
Stage 2: Precision Heating
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Function: Nichrome coils heat water as it flows through a Celcon plastic chamber
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Benefit: Consistent output temperature with immediate delivery and no tank required
Key Features
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Cast Aluminum Housing: Durable and tamper-resistant—ideal for high-traffic or public facilities
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Endless Hot Water: On-demand heating ensures a continuous supply without running out
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Ultra-Efficient: 99% energy efficient—only draws power when water is flowing
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Compact Design: Small footprint fits tight spaces
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Environmentally Friendly: Reduces energy and water waste—ideal for green building certification
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No Pressure Relief Valve Required: Easier installation (confirm local code)
Compared to Traditional Tank Heaters
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Feature
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CM15L/277 Tankless Heater
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Traditional Tank Heater
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Energy Use
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99% efficient – heats only when needed
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Constant standby power draw
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Hot Water Supply
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Unlimited
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Limited by tank capacity
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Installation Size
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Compact: 6-1/4" x 9-5/8" x 2-3/4"
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Large and space-consuming
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Maintenance
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Minimal
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Regular flushing, descaling, and corrosion checks needed
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Service Life
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Long-lasting
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Typically shorter due to internal tank corrosion
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Certifications & Compliance
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UL Listed: UL 499 safety standard for electric heating appliances
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CSA Certified: Meets CAN/CSA C22.2 No. 88
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UPC / IAPMO Approved: Compliant with plumbing code for North America
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ADA Compliant: Suitable for accessible and public spaces
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Lead-Free: Certified per U.S. Federal Public Law 111-380
What’s Included
- 1 × Chronomite CM15L/277 Instant-Flow® Tankless Water Heater
- 3/8" Compression Fittings (Inlet & Outlet)
- Faucet Flow Control Adapters
- Installation & Operation Manual
Ships with standard (ADJ) option. To request a preset factory temperature at 104°, 110° or 120°F, please email us immediately after placing your order.
Installation:
A licensed plumber is required for installation per your local regulatory requirements.
Before beginning, turn off the breaker and disconnect the electrical supply to the area.
Shut off the water supply to the fixture.
Double‑check that everything has been turned off prior to proceeding.
For optimal performance, Chronomite electric tankless water heaters should always be installed within 18 inches of the point of use.
Maintenance:
Periodically inspect the supply lines, connections, and heater for any moisture, corrosion, or other preventable problems.
