APPLICATIONS EXPERTISE
ENERGY RECOVERY
ENERGY RECOVERY FOR HIGH OUTDOOR AIR APPLICATIONS
When conditioning large amounts of very cold, very warm, or humid outdoor air, energy recovery becomes especially important. Exhaust air energy recovery provides these economic benefits:
Lower operating costs: Energy recovery increases system efficiency.
Lower installed systems costs: Energy recovery reduces mechanical cooling and heating loads and, therefore, reduces the required capacities of cooling and heating components.
EXPERTISE GAINED FROM THOUSANDS OF INSTALLATIONS
Valent's focus on energy recovery design, construction, and control has been rewarded with thousands of successful installations that are energy-efficient, durable, and that improve indoor air quality.
Optimized energy recovery is critical for high outdoor air applications. Rely on Valent to do it well.
TECHNOLOGIES
- Multiple energy recovery options ensure the right product fit for the application
- ASHRAE 90.1 compliant
- Heat transfer material options provide high-efficiency moisture removal, low maintenance, or low cross-contamination
MANAGEMENT
- Winter defrost keeps supply fan and heat source operational, not shutting the unit down to defrost
- Space temperature and ventilation stays consistent at all times
WHEELS
- Energy recovery sized to handle full outdoor and exhaust air volume
- Delivers maximum enthalpy effectiveness
- Low pressure drop across wheel does not require economizer bypass
MEETING EFFICIENCY, IAQ, AND MAINTENANCE REQUIREMENTS
Valent is known for offering a broad selection of energy recovery technologies. When choosing for a specific application, priorities usually fall into three areas:
- Energy efficiency: If energy efficiency is the priority, choose enthalpy wheels, which are the most efficient.
- IAQ: If IAQ is the priority, choose sensible or enthalpic plate heat exchangers, which allow almost no leakage across airstreams.
- Low maintenance: If low maintenance is the priority, choose sensible or enthalpic plate heat exchangers, which have no moving parts.
ENTHALPY WHEEL
| HEAT TRANSFER MEDIUM |
| Polymer or aluminum |
| ENTHALPY RECOVERY |
| Best |
| INTERNAL PRESSURE DROP |
| Moderate |
| LEAKAGE ACROSS AIRSTREAMS |
| Some |
| MAINTENANCE |
| Some |
Available on Valent VXE and VPRE units
ENTHALPIC PLATE
| HEAT TRANSFER MEDIUM |
|
Polymer |
| ENTHALPY RECOVERY |
| Better |
| INTERNAL PRESSURE DROP |
| High |
| LEAKAGE ACROSS AIRSTREAMS |
| Low |
| MAINTENANCE |
| Low |
Available on Valent VPRC units
SENSIBLE PLATE
| HEAT TRANSFER MEDIUM |
Aluminum |
| SENSIBLE RECOVERY |
| Good |
| INTERNAL PRESSURE DROP |
| Low |
| LEAKAGE ACROSS AIRSTREAMS |
| Almost none |
| MAINTENANCE |
| Almost none |
Available on Valent VPRP units
