MA Eases ERR Requirements in Commercial Stretch Energy Code
Tags: DOAS, Energy Code, Greenheck, RVE
The most recent changes to the Massachusetts stretch energy code, 225 CMR 23 C403.7.4, the requirements on ERR and SERR have been eased:
- Enthalpy Recovery Ratio (ERR) of not less than 60% at heating and cooling design conditions and airflows.
- Sensible Energy Recovery Ratio (SERR) of not less than 70% at heating design conditions and airflows.
By relaxing the ERR requirement, it opens up a series of pre-engineered commercial DOAS equipment such as Greenheck RVE. Previously, design engineers were tasked with selecting expensive, semi-custom DOAS equipment to meet the previous ERR requirement of 70% in heating and cooling.
- Meet Commercial Stretch Energy Code
- Specialized (Opt-In) Energy Codes
- Easily Selectable in CAPS and eCAPS
- Now Available All-Electric Air Source Heat Pump to Zero Degree Ambient
Product Features
- Product Features
- 2″ Double Wall Cabinet with R13 Foam Insulation
- Enthalpy Wheel Option w/ 70-80% Effectiveness
- Airflows up to 18,000 CFM
- Packaged Cooling 3-70 tons
- Optional Air Source Heat Pump (ASHP) with operation down to 0°F Ambient
Systemair Geniox DOAS Equipment
- Passive House-Certified
- Exceed Specialized (Opt-In) Energy Code
- Available with VRF Integration to Any Manufacturer including Fujitsu
Product Features
- Geniox units can handle airflows from 440 to 65,000 CFM
- Passive House-Certified up to Geniox 27 (10,000 CFM)
- Easy to configure, control, operate and install with modular construction
- Minimum energy use and durable design
