Certification Record
                    LC1231855                
            
                    ECR International, Inc.                
            
                    2024-08-19                
            
                    New York                
            
                    United States                
            
                    DHW-299; DHW-399; DHW-499; DHW-500                
            
                    97.100.20, 27.060.01                
            | Model (Heat Exchanger Type) | 10+6 | 12+6 | ||
| DHW-399 | DHW-499 | |||
| MIN | MAX | MIN | MAX | |
| NG MBTU/HR | 72 | 399 | 83 | 470 | 
| LP MBTU/HR | 69 | 399 | 84 | 470 | 
| Fan Speed (RPM) | 1550 | 6600 (NG)
 6450 (LP)  | 
1650
 1750  | 
7400 (NG)
 7250 (LP)  | 
| Thermal Efficiency (%) per ANSI Z21.10.3-2015-CSA 4.3-2015 | 95.6 (NG)
 95.8 (LP)  | 
97.4 (NG)
 95.4 (LP)  | 
||
| Model (Heat Exchanger Type) | 8+4 | 12+6 | ||
| DHW-299 | DHW-500 | |||
| MIN | MAX | MIN | MAX | |
| NG MBTU/HR | 46 | 299 | 83 | 500 | 
| LP MBTU/HR | 46 | 299 | 84 | 500 | 
| Fan Speed (RPM) | 1450 (NG)
 1450 (LP)  | 
6200
 5950  | 
1650
 1750  | 
8000 (NG)
 7850 (LP)  | 
| Thermal Efficiency (%) per ANSI Z21.10.3-2015-CSA 4.3-2015 | 97.8 (NG)
 97.6 (LP)  | 
97.2 (NG)
 95.2 (LP)  | 
||
| Electrical: 120 VAC, 60 Hz, less than 12 Amp | ||||
- ANSI Z21.10.3 – 2019 / CSA 4.3 – 209
 - CSA 2.17- 2017
 
- Suitable for use with Natural Gas or Propane, for indoor use only.
 - Not to be used with solid fuel.
 - The ventilation of the boiler room must meet local and national standards and regulations, regardless of the selected supply of fresh air to the boiler.
 - The flue gas system must be per the installation manual.
 - Unit must be installed with a certified pressure relief valve supplied by the manufacturer as per instructions manual.
 - Water pipes must be approved material for potable water.
 
General Note:
- Ties to the main applicant’s LC Listing Report no. 50.00.16309-1_Rev.A