Lennox HP27?024, Информация об устройстве

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Page 17
TABLE 11
NORMAL OPERATING PRESSURES
MODE/
OUTDOOR COIL
HP27-024 HP27-030 HP27−036 HP27-042
MODE/
TYPE OF
EXPANSION
OUTDOOR COIL
AIR ENTERING
TEMPERATURE
F
LIQ.
+10
PSIG
SUC.
+5
PSIG
LIQ.
+10
PSIG
SUC.
+5
PSIG
LIQ.
+10
PSIG
SUC.
+5
PSIG
LIQ.
+10
PSIG
SUC.
+5
PSIG
65 134 82 136 80 137 80 134 75
Cooling
75 159 83 161 81 163 81 167 76
Cooling
TXV
O l
85 186 84 188 82 190 82 199 77
TXV
Only
95 216 83 217 83 221 83 232 78
y
105 248 86 251 85 257 85 257 80
20 179 36 173 36 177 33 184 29
Heating
30 188 49 192 49 195 40 194 39
Heating
40 203 58 205 58 208 46 205 48
50 228 65 218 65 217 58 216 58
VI−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 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 − Adjust blower cooling speed. Static pressure drop
over coil should be checked to determine correct
blower CFM. Refer to Lennox Engineering Hand-
book.
3 − Belt Drive Blowers-Check condition and tension.
4 − Check all wiring for loose connections.
5 − Check for correct voltage at unit.
6 − Check amp−draw on blower motor.
Unit nameplate_________Actual_________.