CONDIZIONATORI
Modelli COMPACT e SPLIT QUATTRO
pag. 29
www.climma.it
Follow these instructions:
1.- Measure the net surface in sqmt of the inlet grill without the frame.
2.- Measure the air speed on different points of the grill.
3.- Add up the different speed values and divide them by the number of measurements to obtain the air speed
average (in mt/s or mt/m according to the measuring instrument).
4.- Thanks to one of the following formulas it is possible to draw the air volume in the system:
Q = SxVx3600
Q= SxVx60
Where:
Q = cmt/h of conditioned air
S = surface in sq mt of the grill without the frame
V = air speed in mt/s or mt/m
3600 = for the speed in mt/s
60 = for the speed in mt/m
From these formulas it is possible to draw the following ones:
S =
Q
Vx3600
--------------
S =
Q
Vx60
----------
V =
Q
Sx3600
--------------
V =
Q
Sx60
----------
Compare the volume in cu mt/h with the value indicated in the table of technical specifications. If the air vol-
ume is lower of 15/20% than values in the table (but not more than 15/20%), the value can be considered nor-
mal. The measurement on the outlet grill can be useful for the balancing if there are more outlet grills for a
comparaison with the air volume of the outlet grill. To air-condition two or more cabins, it is necessary to cal-
culate the air volume to introduce. To obtain this value, divide the air volume obtained from the previous mea-
surement by all air-conditioned cu mt (ratio between conditioned air and conditioned volume). Multiply this
value by volumes of each cabin to obtain a rough value of the conditioned air to introduce.
Example:
Volume aria trattata in mc/h VT
Volume condizionato dinette mc VC
Volume condizionato cabina mc VC
Totale mc. VC
Rapporto VT/VC
700
25
15
40
17,5
Mc aria dinette = 25x17,5
Mc aria cabina = 15x17,5
Totale mc/h
438
263
700
6 GOOD FUNCTIONING CHECK
6.6 - MEASURING OF THE AIR VOLUME
