The Integrated HVAC System
WARNING: The 2500 is a quiet, efficient, low pressure system. Special care and attention should be given if connecting this unit to any other air handler that may draw more air than the 2500 is designed to accommodate.
The HRV has become an integral component of the HVAC system. Figure 4 shows an HRV unit provid- ing fresh air directly to the return air plenum of a Rooftop heat/cool unit.
Many buildings have a ceiling return air plenum as in Figure 5. Fresh air from the HRV can be intro- duced directly into the ceiling space near the air handler’s intake.
In installations where it is satisfactory to provide general exhaust from the space, the air to be exhausted may be taken directly from the return air plenum to the HRV as it is drawn back to the air handler. Fresh air supplied by the HRV is then intro- duced directly into the return air plenum but at a location closer to the air handler. The air handler would have a constant running blower to effectively distribute the fresh air and remove the stale air. Balancing dampers would be located in both the HRV supply and exhaust ducts between the return air plenum and the HRV.
Electrical Connections
System is 208/230V, 1 phase, 60 Hz. This unit meets all local codes and requirements.
It is STRONGLY recommended that an electrical disconnect be installed prior to the HRV, and that it is turned off and locked out before servicing the unit.
All electrical connections should be made by a qualified electrician.
Two (2)
Maintenance
As with any mechanical system, a dedicated maintenance program will prolong the life of the equipment, and maintain its optimum performance.
We recommend at least two (2) full inspections and cleanings per year under normal operating conditions, and more if circumstances warrant it.
Service should include:
•Cleaning of screens protecting outside hoods.
•Cleaning of core.
To access core, remove service panels and slide core halfway out. Wash core protruding from cabinet with water and/or a mild cleaning solution. Push core through to the other side of
the cabinet and repeat procedure to clean the other side of the core. In many cases, only a vacuuming of the core surface is required.
•Inspect filters and replace as necessary.
•Wipe down drain pans and inside of cabinet, using a mild disinfectant.
•Ensure condensate drain has free flow of moisture.
•Inspect blowers and electrical panel.
•Confirm operation.
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