Lennox HP29 Series, Unit Information

Page: 16 / 28

Page 16
Model Condensing Temp
°
F Warmer Than Liquid Line
HP29−261
HP29−311
HP29−461
HP29−211
HP29−511
HP29−651
SUBCOOLING METHOD
AMBIENT TEMPERATURE BELOW 60
_
F (16
_
C)
8°F (4.4°C)
6°F (3.3°C)
10°F (5.6°C)
12°F (6.7°C)
13°F (7.2°C)
5°F (2.8°C)
HP29−411
8°F (4.4°C)
TABLE 13
TABLE 14
HP29−018
HP29−036
HP29−042
HP29−030
HP29−024
HP29−048
HP29−060
4
_
F (2.2
_
C)
11
_
F (6.1)
7
_
F (3.9
_
C)
Model Condensing Temp
°
F Warmer Than Liquid Line
SUBCOOLING METHOD
AMBIENT TEMPERATURE BELOW 60
_
F (16
_
C)
8°F (4.4°C)
12°F (6.7°C)
10°F (5.6°C)
10°F (5.6°C)
71
PSIG
HP29 NORMAL OPERATING PRESSURES*
OUTDOORCOIL
ENTERINGAIR
TEMPERATURE
HP29−261 HP29−311 HP29−411
65
°
F (TXV)
75
°
F (TXV)
85
°
F (TXV)
95
°
F (TXV)
LIQ.
+ 10 + 10
PSIG PSIG
LIQ.
+ 10 + 10
PSIG PSIG
LIQ.
+ 10 + 10
PSIG PSIG
105
°
F (TXV)
LIQ.
+ 10 + 10
PSIG PSIG
HP29−211 HP29−461 HP29−511 HP29−651
LIQ.
+ 10 + 10
PSIG PSIG
LIQ.
+ 10
PSIG
+ 10
VAP.
+ 10
PSIG
LIQ.
+ 10
PSIG
148
171
200
230
263 71
74
76
78
81 156
182
210
241
275 70
72
74
75
78 165
195
220
254
292 73
75
77
79
81 171
197
228
261
299 68
70
72
74
77 173
203
267
307
69
71
73
75
77 163
191
225
259
295 74
75
76
78
79 166
195
227
261
302
73
74
76
78
233
VAP. VAP. VAP. VAP. VAP. VAP.
*These are typical pressures only. Indoor evaporator match up, indoor air quality and evaporator load will cause the pressures to vary.
TABLE 15
TABLE 16
HP29 NORMAL OPERATING PRESSURES
OUTDOOR
COIL AIR
HP29-018 HP29-024 HP29-030 HP29−036 HP29-042 HP29-048 HP29-060
MODE
COIL AIR
ENTERING
TEMP.
_
F (
_
C)
LIQ.
+10
PSIG
SUC.
+5
PSIG
LIQ.
+10
PSIG
SUC.
+5
PSIG
LIQ.
+10
PSIG
SUC.
+5
PSIG
LIQ.
+10
PSIG
SUC.
+5
PSIG
LIQ.
+10
PSIG
SUC.
+5
PSIG
LIQ.
+10
PSIG
SUC.
+5
PSIG
LIQ.
+10
PSIG
SUC.
+5
PSIG
75 (24) 171 74 182 72 184 71 184 74 180 71 180 70 183 72
Cooling
TXV
85 (29) 200 76 210 74 214 72 215 75 205 74 210 70 214 73
g
TXV
Only
95 (35) 230 78 241 75 246 74 249 76 245 75 240 71 248 75
Only
105 (41) 263 81 275 78 282 45 285 76 280 76 280 72 285 77
20 (−7) 166 33 170 28 186 28 170 27 180 30 175 25 186 25
Heating
30 (−1) 177 42 184 36 198 36 180 38 190 40 185 35 200 32
Heating
40 (4) 188 51 194 42 210 43 230 50 195 47 195 43 212 42
50 (10) 200 61 212 56 218 53 240 55 205 54 206 52 224 50
* These are typical pressures only. Indoor evaporator match up, indoor air quality and evaporator load will cause the pressures to vary.
IMPORTANT
Use tables 15 and 16 as a general guide for
performing maintenance checks. Table is not a
procedure for charging the system. Minor variations
in pressures may be expected due to differences in
installations. Significant deviations may mean the
system is not properly charged or that a problem
exists with some component in the system. Used
prudently, tables 15 and 16 could serve as a useful
service guide.
E − Oil Charge
Refer to tables 6 and 7 on page 7.
V − MAINTENANCE
At the beginning of each heating or cooling season, the
system should be cleaned as follows:
A − Outdoor Unit
1 − Clean and inspect outdoor coil. (Coil may be
flushed with a water hose).
2 − Visually inspect all connecting lines, joints and
coils for evidence of oil leaks.
IMPORTANT
If insufficient heating or cooling occurs, the unit
should be gauged and refrigerant charge
checked.
B − Indoor Coil
1 − Clean coil if necessary.
2 − Check connecting lines and coil for evidence of oil
leaks.
3 − Check condensate line and clean if necessary.
C − Indoor Unit
1 − Clean or change filters.
2 − Bearings are pre-lubricated and need no further
oiling.
3 − Check all wiring for loose connections.
4 − Check for correct voltage at unit.
5 − Check amp−draw on blower motor.
Unit nameplate_________Actual_________.