KR- Services-com LLC
                (prior doing business as KR Services)          
    
           Featuring Off-the Charts 
AN ACCA MANUAL S 
"OTHER APPROVED METHOD"

This is PREMIUM "Other approved software", and satisfies the need for ACCA Manual S results
PROPERLY and quickly when ICC code requires compliance.
With only 2.3% average calculation error because of many less opportunities for human error, 
it is currently accepted and trusted even by "strict" building officials.

Back

Rules of thumb for Freezer (low temp), Cooler (medium temp) and Air-Conditioning (high temp) Systems

 

Type of system High Medium Low
A) Compressor discharge temperature 120> 210 120> 210 130> 225
B) Condenser liquid line temperature less then 135 less then 130 less then 120
C) Evaporator suction temperature +31 > +86 0 > +40 minus 30 > +20
D) Compressor suction temperature minus "C" 0 > 5 deg rise 3 > 10 deg rise 5 > 15 deg rise
E) Outdoor temperature 50 >+110 ? > +110 ? > +110
F) Box (Indoor) temp. 65 > 95 20 > 55 -40 >+10
G) Evaporator air temperature split  15 > 22 8 > 12 5 > 10
H) Condenser air temperature split 15 > 30 10 > 30 5 > 30
I) Evaporating Temp. (pressure converted to temp) +28 > +50 +7 > +35 -30 >+10
J) Condensing Temp. (pressure converted to temp) ** 20 to 30 over "E" 15 to 30 over "E" 15 to 30 over "E"
CALCULATED VALUES      
Evaporator superheat "C" minus "I" 6 > 42* (10 txv) 3 > 30* (5 txv) 3 > 40* (3txv)
Condenser subcooling "J" minus "B" 0 > 20* 5>25 txv 0 > 20* 5>20 TXV 0 > 20* 5>15 TXV
Evaporator Delta T "F" minus "I" 30 > 45 10 > 25 10 > 20
Condenser Delta T "E" minus "J" *** 20 > 35 15 > 30 15 > 30
 

 

HOME