CEMP-E
TI 810-10
1 February 1999
conditioning or general air conditioning may be provided to keep temperature in the work areas
from exceeding 29 degrees C (85 degrees F), if the main portion of the facility is air conditioned
and the criteria for exhaust ventilation are met. Provide a separate ventilation system for the
dishwashing area. Furnish tempered 18 degrees C db min (65 degrees F db min.) makeup air
for the range hood exhaust. Do not recirculate more than 75 percent of air (excluding hood
exhausts) in the kitchen at any time. Kitchen canopy hood exhaust ventilation rates will
generally be 0.4 m/s (75 fpm) for grease filter sections, and 0.25 m/s (50 fpm) for open hood
section, measured at the horizontal hood opening. As an alternative, internal baffle-type canopy
hood with peripheral slot and a slot velocity of 2.5 m/s (500 fpm) is recommended. Use
electrically interlocked supply and exhaust air fans and designed for 2-speed operation.
b. When substantial quantities of hot air exhausted from kitchen areas do not contain
grease, consider using air-to-air heat exchangers in order to recover as much energy as
possible. Evaluate the use of heat recovery in kitchens where heat rejected by refrigeration
equipment is 15 kW (50,000 Btu/hr) or more.
c. Dishwasher room exhaust ducts will be as short as possible with direct runs to outside
of building. Ductwork will have watertight joints and will have a drain line from the low point.
Approximately 75 percent of the room air will be exhausted at the dishwasher, with the
remainder exhausted at the ceiling. Dishwashers normally have duct collar connections so that
exhaust ducts can be attached directly.
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\ 4-10. (PARAGRAPH DELETED.) /1/
4-11. LIVING QUARTERS.
a. Consider variable air volume system with individual room as an alternative to
individual fan coil units for dormitory-type quarters in the life cycle cost analysis.
b. Provide air conditioning for the following types of facilities generally in locations where
during the six warmest months of the year the dry bulb temperature is 26.66 degrees C (80
degrees F) or higher for over 650 hours or the wet bulb temperature is 19.44 degrees C (67
degrees F) or higher for over 800 hours:
(1) Fire Station Dormitories.
(2) Military Family Housing.
(3) Unaccompanied Enlisted Personnel Housing.
(4) Unaccompanied Officers' Personnel Housing.
(5) Temporary Lodging Facilities (including the Administrative Areas).
4-12. MAINTENANCE FACILITIES.
a. General Purpose Aircraft Hangars. Select heating systems on the basis of the
outdoor design temperatures as presented in table 4-1. Floor-type unit heaters will introduce 20
15
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