Description
The Phantom-X “C” Series is a commercial stainless-steel, water tube high efficiency, condensing, gas fired hot water boiler. The Phantom-X “C” Series is available for use with natural gas or LP gas and in 5 sizes, from 399MBH to 800MBH input.
The Phantom-X “C” Series features a modulating burner with a 5:1 turndown ratio and a Thermal Efficiency rating of up to 97.0%. Standard features of the Phantom-X “C” Series control include domestic water priority with priority protection, warm weather shutdown, freeze protection and pump exercise. The Phantom-X “C” Series control allows for multiple boiler installations with lead/lag for up to 8 boilers.
The Phantom-X “C” Series also offers multiple venting options, and with their stackable design feature they offer floor-space savings for those small mechanical room applications.
Download Brochure
CVB-PhantomX-C-Series-399-800-Lit-Sht-nc-PF-June-19

Product Brief
| Type: | Residential/Commercial |
| Heat Exchanger: | Stainless Steel Water Tube |
| Fuel: | Natural Gas or LPG |
| Input: | 399 – 800 MBH |
| Efficiency (AFUE) | 94.1% to 97% |
| Venting: | Direct Vent |
| Ignition: | Direct Spark |
| Trim: | Water |
| Domestic Water: | N/A |
| Burner: | Modulating with 5:1 turndown ratio |
| Configuration: | Packaged |
| Notes: | Outdoor reset with included sensor Multiple Venting options Multiple boiler lead/lag – up to 8 boilers |
Product Ratings
Product Dimensions
Related Documents
106463-02-04-19-PHNTM-X-399C-800C-Users-Manual-1
Phantom-399C-800C-Submittal-Rev-D-1
106309-03-04-19-PHNTM-X-399C-800C-IOM
CVB-PhantomX-C-Series-399-800-Lit-Sht-nc-PF-June-19










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