Wednesday, July 30, 2014
If the budget and working conditions will allow, try and
follow these basic principles:
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| Washington County Jail |
- The building’s exterior boundary is the area that encloses the
conditioned space. Unheated areas such as exterior walls, storage areas,
and garages lie outside the conditioned space. HVAC equipment and ductwork
should not be located outside the conditioned space.
- Normally you do not want ductwork in the soil under floor slabs
due to the possibility of condensation or flooding.
- It is really important to get enough insulation around ductwork
that is operating in unconditioned spaces. This risks the invasion of
water vapor into the ductwork. This affects the efficiency of the HVAC
system and can cause other challenges in maintenance.
- Care must be taken to get all HVAC systems in a leak-free design
no matter where they are located. This can improve your HVAC efficiency by
over 20%.
- HVAC works best when air returns are 100% ducted. Chases must be
designed in the building with adequate room for the HVAC contractors’ use.
- Locating your HVAC equipment and ductwork in adequate chases allows
maintenance easier access for service work and for future upgrading as
technology changes.
Your experienced General
Contractor or Construction Manager can add quality assurance to this process by
expediting the testing firm to:
- Test the building exterior and ductwork for leakage.
- Test the air pressures.
- Test the ventilation of all combustible equipment that relates
to the building.
OMAN BAHWAN ENGINEERING GROUP REQUIRES
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