Lennox G43UF SERIES

II ralri99IBN is II value i.
add(l(l or removed, ...... , MORE Inan
venly chBrge Ultng shOWn, romov
lha Appnta," I'IlfrigerBnL
Method,
64°F
USE WEIGH·IN METHOD
Weigh-in or remove refrlgerant ........ __ .......
based upon line length
1. Confirm proper airftow acroSe coil using figure
13.
2. Compare unit pr8&SurllS with lable 4, NOfmgl
OpflflllingPfflSSUTlJS.
3. Set thermostat 10 cal! for heat (must have a
cooling load between 7~eOoF (21·26"C)
4, Connect gaugll set
5. Measure outdoor Gl')'1bienltemperalure
e. When hlllli demand Is flilliafied. set thefmostetto
c;lIl1lor cooling
SUBCOOLING TXV (17ifa~~.;md
7. Allow Iemperatures and pressurea to stabilize.
BLOCK OUTDOOR COIL; 150mBlime" necauary with
lawBr IBmperalul05! USB csrdbol\rd or pl35lic aheBI 10
NOTE - If necessal)l, bloc/( outdoor ellil /0
re'\rlct Ih. IIir1low Ihra"llh 1M outdoor lXlM ID acnleve
mainlllin325 • 375 pslg.
preI8Uf •• lrom 326-375 plIig (224o-~5115 kPa). Higher
8. Record liquid line tempera lure:
pre.su", are nlllldBd III check Charge. Black equal
,aetion5 01 air in18ke panela end move DOVBI1ngs Sidlways
LtQo.
unlillhs liquid pressure is in Iha sbove nOled rang ...
9. Measure liquid line pres£ul'9 end Uge the vallJe 10
_--=-__ CARoliOARD OR Pl.A9'l'IC SHEET
determine saturation temperature (see table 3):
If value is LESS
IhBn Ihown, ll~r.l
refrigelBnt.
SA,.. ..
10. Subtract 10 determine suboooling (Se');
SA", __ • L1Qo __ • se' __
11. Compare resun5 with table billow.
Ift!I!!!!J
~
13ACX-)OO{-230·01 - seD (Subcoollng) Values (F:+/·1.0° [C: +/.0.6
0
])
13ACX-)(X)(·23Q-01
Of (.C]. .018 -024 -030 -036
-042 -048 -080
Any 8 (.4 4) 8 (44) T (3 R) 4 (2 2)
8 (44) 10 (5 6) 7 (3 9L
"'l)ITIf/Ilflllure of air enteling outdoor coli
13ACX·XXX·230..(l2. -04 through ..(114
Of (OC)" -018 -024 -030 -036 -042
-048
-060
.An>L- 10/56) 10 (5 6) 9(50) 12 (8 7) 9 (6 0) 9 (50) 7(39)
'Tempereture of air enlerlng outdoor coli
13ACX.XXX·230·03
DE (OG)" .018 -024 .030 ·0311
.042 .04B -060
Any 8 (4 4) 8 (A 4) 9 (5 0) 8 (44) 9 (5 0) 13 (Z 2) 11 (6 1\
-Temperature of lIir enl8rh'9 outdoor coil
Figure 17. HFC·410A Subcoollng TXV Charge
Page 25
19AC)( SERIES
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