Chronomite CM-30L/277 Instant-Flow® Tankless Water Heater
High-Capacity, Energy-Efficient Hot Water for Demanding 277V Point-of-Use Applications
The Chronomite CM-30L/277 delivers powerful on-demand hot water with fast response time and consistent temperature output, even in colder climates or high-demand commercial environments. Designed for 277V systems, this 6,930-watt unit is ideal for public restrooms, healthcare facilities, industrial wash stations, and anywhere compact, efficient point-of-use heating is needed.
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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30 Amps, 277 Volts, 6,930 Watts
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✓ High output for applications with higher temperature demands
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Temperature Rise
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~122°F at 0.40 GPM (approximate)
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✓ Delivers hot water even with cold inlet temperatures
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Activation Flow Rate
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0.20 GPM
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✓ Works with low-flow and sensor-activated faucets
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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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✓ Ultra-compact—fits under sinks or in wall cavities
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How It Works: Instant Heating Technology
Stage 1: Flow Activation
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Function: Activates when flow reaches 0.20 GPM
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Benefit: Eliminates standby energy waste—only operates when needed
Stage 2: Precision Heating
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Function: Nichrome heating coils heat water instantly in a Celcon flow chamber
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Benefit: Delivers steady water temperature with zero recovery time
Key Features
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Rugged Cast Aluminum Housing – Vandal-resistant and corrosion-resistant for commercial durability
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On-Demand Hot Water – Heats only what you need, when you need it—no tank required
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99% Energy Efficiency – Reduces operational costs and environmental impact
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Compact Footprint – Saves space in tight installations, including under sinks and inside enclosures
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Environmentally Friendly – Supports LEED credits and green building compliance
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No Pressure Relief Valve Required – Simplifies installation (verify with local code)
Compared to Traditional Tank Heaters
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Feature
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CM30L/277 Tankless Heater
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Traditional Tank Heater
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Energy Use
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99% efficient, on-demand
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Constant heating to maintain temperature
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Hot Water Supply
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Unlimited
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Limited to tank size and recovery time
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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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Bulky, requires dedicated floor/wall space
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Maintenance
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Minimal
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Requires periodic flushing and descaling
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Service Life
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Long-lasting, corrosion-resistant
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Shorter due to tank degradation and scale buildup
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Certifications & Compliance
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✅ UL Listed – Complies with UL 499 for electrical safety
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✅ CSA Certified – Meets CAN/CSA C22.2 No. 88 electrical requirements
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✅ UPC / IAPMO Approved – Certified for North American plumbing systems
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✅ ADA Compliant – Suitable for accessible facilities
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✅ Lead-Free Certified – Complies with U.S. Public Law 111-380
What’s Included
- 1 × Chronomite CM30L/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.
