Retrotec USACE - Manual (Page 15)

Figures xv
Figure D237. Condensers reject heat into large high bay air-conditioned spaces (top row),
fl ight simulator supply and return are ducted to central systems (left).
Figure D238. Power conditioners installed in the large air-conditioned bay (left), power con-
ditioner installed in the air-conditioned space next to the computer rack and a
simulator module (right).
Figure D239. Simulator manned modules located and rejecting heat into the large air-
conditioned bay (top left), fan built into the module exhausts warm air into
the air-conditioned bay (top right), air intake through which cold air enters the
modules under the negative pressure created by exhaust fan (bottom left), air
exhaust from the module (bottom right).
Figure D240. Flight simulator supply and return are ducted to central systems.
Figure D241. Training stations located in the air-conditioned space (top left), computer
server rejects heat into the air-conditioned space (bottom left), exhaust grill of
the server (right).
Appendix F
Figure F1. Natural forces affecting building air leakage.
Figure F2. Example four-story building.
Figure F3. Example building where individual apartments have doors to the outside.
Figure F4. House-testing door fan: 25,350 L/s (5,000 cfm) at 75 Pa.
Figure F5. Commercial modular door fan: 121,700 L/s (24,000 cfm) at 75 Pa.
Figure F6. Large commercial modular door fan: 121,700 L/s (24,000 cfm) at 75 Pa.
Figure F7. Portable large commercial modular door fan.
Figure F8. Portable large commercial modular door fan.
Figure F9. Trailer-mounted door fan: 152,100 L/s (30,000 cfm) at 75 Pa.
Figure F10. Trailer-mounted high-power fan: 253,500 L/s (50,000 cfm) at 75 Pa. Ideal for
large warehouses.
Figure F11. Portable commercial modular door fan: 243,360 L/s (48,000 cfm) at 75 Pa.
Figure F12. Derelict conduit penetration in concrete slab.
Figure F13. Under depressurization, warm air can be seen entering the space and present-
ing a thermal anomaly on the concrete wall behind.
Figure F14. Insulation pinned to a below-grade CMU wall.
Figure F15. Infrared thermogram taken while enclosure was depressurized. Air leakage in
corner most likely due to settlement cracking.
Figure F16. Removed drop-ceiling tile reveals foil-faced insulation being used as the
formal plane of building enclosure.
Figure F17. Infrared thermogram displaying warm air infi ltrating from attic space while
enclosure was under depressurization.
Figure F18. Window sill in a commercial facility.
Figure F19. Infrared thermogram reveals air leakage at window sill while enclosure is de-
pressurized.
Figure F20. Recessed light penetrating the ceiling GWB that was intended to be the air
barrier.
Figure F21. Infrared thermogram reveals air leakage around recessed light while enclosure
is depressurized.
Figure F22. Base trim in a commercial facility with exterior wall on the right and interior
wall across the top/left.
Figure F23. Infrared thermogram reveals air intrusion at base of wall while enclosure is
depressurized.