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The scheme of new design.

A conventional HVAC-system combined with cooled ceiling (8)
and optional solar heat absorber (
11).

Legend see below.

new-system.gif (32778 Byte)
by IBS, Ingenieurbuero Schleifenbaum

Legend

  1 - cooling coil
  8 - cooled ceiling
     (surface temp. = 60-62 F)
15 - WC / restroom or general
       separate exhaust air
  2 - heating coil
 
  9 - boiler
 
16 - air plant
  3 - energy recovery
10 - potable water storage
      (approx. 150 F)
17 - local heating or cooling coil
  4 - fans
11 - solar heat absorber
       (optional)
18 - local fan
  5 - chiller
12 - low impulse displacement diffusers
       v_air max. = 40-75 ft/min (0,2-0,4 m/s)
19 - bypass air - room to room
  6 - cold water storage
13 - two - point regulation valve
 
20 - bypass air - inside air plant
  7 - heat exchanger
14 - circulation pump