Click here to make tpub.com your Home Page

Page Title: T a b l e 4-2. Conversion of temperature to pressure (R-22)
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

TM 5-4120-356-14
T a b l e 4-2. Conversion of temperature to pressure (R-22)
(h)  Calculate  Superheat  of  expansion  valve  deducting  tempera-
t u r e calculated in step (g) from the temperature indicated on the thermometer attached
O
O
to the suction line.  Superheat of the expansion valve should 6.0 1.5 F ( - 1 4 . 4 4
0.8O C ).
( i ) I f s u p e r h e a t o f t h e e x p a n s i o n v a l v e is not correct, as given in
step (g), refer to step (3) and adjust the expansion valve to the correct superheat.
(j) If superheat of expansion valve is correct, proceed as follows:
( k ) Refer to paragraph 3-15b and remove the condenser fan.
(l) Refer to figure 4-12 and remove the thermometer b u l b
from
the
s u c t i o n line near the expansion valve power bulb.
(m) Refer to paragraph 3-15b and reinstall the condenser fan.
(n) Refer to figure 4-5 and remove the suction pressure gage.
(3) A d j u s t .
CAUTION
N e v e r adjust the expansion v a l v e u n l e s s
a b s o l u t e l y necessary. When a d j u s t i n g the
e x p a n s i o n valve, allow the u n i t to run on
"COOL" at least 20 minutes between each
adjustment. Make sure that t h e condenser
f a n and all panels are in place and secure
d u r i n g running period.

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business