Lennox Elite ELS Series, Installation Instructions Manual

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TABLE 3. Approach Temperatures – Commercial Matchups
Models Approach Temperature
Outdoor Indoor Stage (ºF) (+/- 1) (ºC) (+/- 0.5)
ELS072S4S ELA072S4S 1 4 2.2
ELS090S4S ELA090S4D 1 7 3.9
ELS120S4S ELA120S4D 1 4 2.2
ELS120S4D ELA120S4D
1 5 2.8
2 5 2.8
ELS150S4D ELA150S4D
1 7 3.9
2 5 2.8
ELS180S4D ELA180S4D
1 4 2.2
2 4 2.2
ELS240S4D ELA240S4D
1 7 3.9
2 8 4.4
TABLE 4. Normal Operating Pressures – Cooling – Single Stage – Commercial*
Entering
Outdoor
Air Temp
ºF (ºC)
ELA072 ELA090 ELA090 ELA120
ELS
ELA120
STAGE 1 STAGE 1 STAGE 1 STAGE 1 STAGE 1
Liquid Suction Liquid Suction Liquid Suction Liquid Suction Liquid Suction
65 (18)
245 137 252 144 240 128 251 130 243 135
75 (24)
283 141 292 146 294 130 292 132 285 136
85 (29)
327 143 336 148 338 131 336 134 332 138
95 (35)
377 145 385 150 385 133 384 136 378 139
105 (41)
426 148 438 152 435 135 436 139 434 141
115 (46)
484 150 495 154 489 136 492 141 491 142
125 (52)
540 155 558 157 545 140 553 144 548 146
SCFM 2600 2750 2725 2750 3850
*pressures at 80F dry bulb and 67F wet bulb entering indoor air temperatures.
TABLE 5. Normal Operating Pressures – Cooling – Two Stage – Commercial*
Entering
Outdoor Air
Temp
ºF (ºC)
(2) ELA180 ELS ELA120
STAGE 1 STAGE 2 STAGE 1 STAGE 2
Liquid Suction Liquid Suction Liquid Suction Liquid Suction
65 (18)
248 122 247 120 244 133 240 133
75 (24)
288 125 287 122 282 136 278 135
85 (29)
332 127 331 125 326 139 322 137
95 (35)
379 129 378 127 373 141 372 138
105 (41)
432 132 430 130 423 142 420 141
115 (46)
488 135 487 133 477 144 476 143
125 (52)
550 138 548 136 537 147 539 145
SCFM 5150 4000
Entering
Outdoor Air
Temp
ºF (ºC)
(2) ELS ELA240 ELA150
STAGE 1 STAGE 2 STAGE 1 STAGE 2
Liquid Suction Liquid Suction Liquid Suction Liquid Suction
65 (18)
241 130 237 130 254 132 254 130
75 (24)
284 134 280 134 291 135 289 133
85 (29)
331 136 327 135 337 138 336 134
95 (35)
380 138 376 137 381 140 382 136
105 (41)
434 141 429 140 432 142 433 139
115 (46)
491 143 490 142 487 144 489 141
125 (52)
540 145 540 145 543 147 550 145
SCFM 7400 4395