International Comfort Products N4H318AKE100, N4H318GKE100, N4H324AKE100, N4H324GKE100, N4H330AKE100 User Manual

Name: International Comfort Products N4H318AKE100
Brand: International Comfort Products
SKU: 8868704
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TECHNICAL SUPPORT MANUAL

Split System Heat Pump

N4H3

Safety Labeling and Signal Words

DANGER, WARNING, CAUTION, and NOTE

The signal words DANGER, WARNING, CAUTION, and NOTE are used to identify levels of haz-

ard seriousness. The signal word DANGER is only used on product labels to signify an immediate hazard. The signal words WARNING, CAUTION, and NOTE will be used on product labels and throughout this manual and other manuals that may apply to the product.

DANGER − Immediate hazards which will result in severe personal injury or death.

WARNING − Hazards or unsafe practices which could result in severe personal injury or death.

CAUTION − Hazards or unsafe practices which may result in minor personal injury or product or

property damage.

NOTE − Used to highlight suggestions which will result in enhanced installation, reliability, or operation.

Signal Words in Manuals

The signal word WARNING is used throughout this manual in the following manner:

The signal word CAUTION is used throughout this manual in the following manner:

Signal Words on Product Labeling

Signal words are used in combination with colors and/or pictures on product labels.

WARNING

CAUTION

TABLE OF CONTENTS

Model Number Identification 2.....................

Wiring Diagrams 3−4.............................

Charging Chart 5.................................

Tech Labels (Expanded Data) 6 − 13................

Cooling Multiplying Factors 14 − 21.................

Heating Multiplying Factors 22 − 30.................

Parts List 31 − 36.................................

Exploded Views 37 − 39...........................

MODELS

N4H318AKE100 N4H318GKE100

N4H324AKE100 N4H324GKE100

N4H330AKE100 N4H330GKE100

N4H336AKE100 N4H336GKE100

N4H342AKE100 N4H342GKE100

N4H348AKE100 N4H348GKE100

N4H360AKB400 N4H360GKB400

DEATH, PERSONAL INJURY, AND/OR PROPERTY DAMAGE HAZARD

Failure to carefully read and follow this warning could result in equipment malfunction, property damage, personal injury and/or death.

Installation or repairs made by unqualified persons could result in equipment malfunction, property damage, personal injury and/or death.

The information contained in this manual is intended for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and test instruments.

Installation must conform with local building codes and with the National Electrical Code NFPA70 current edition or Canadian Electrical Code Part 1 CSA C.22.1.

WARNING

428 04 5102 00 August 2010

TECHNICAL SUPPORT MANUAL Split System Heat Pump: N4H3

OUTDOOR UNIT MODEL NUMBER IDENTIFICATION GUIDE (single phase)

Digit Position: 1 2 3 4 5, 6 7 8 9 10 11 12

Example Part Number:

Product Family

4 = R−410A REFRIGERANT A = Air Conditioner H = Heat Pump TYPE

3 = 13 SEER

4 = 14 SEER 5 = 15 SEER NOMINAL EFFICIENCY 18 = 18,000 BTUH = 1½ tons 24 = 24,000 BTUH = 2 tons 30 = 30,000 BTUH = 2½ tons 36 = 36,000 BTUH = 3 tons 42 = 42,000 BTUH = 3½ tons 48 = 48,000 BTUH = 4 tons

60 = 60,000 BTUH = 5 tons NOMINAL CAPACITY

A = Standard Grille G = Coil Guard Grille

C = Coastal FEATURES

K = 208/230−1−60 VOLTAGE

Sales Code

Engineering Revision

Extra Digit

N 4 H 3 18 G K E 1 0 0

ACCESSORIES PART NUMBER IDENTIFICATION GUIDE

Digit Position: 1 2 3 4 5 6, 7 8, 9 10, 11

Example Part Number:

N = Non−Branded BRANDING

A = Accessory PRODUCT GROUP

S = Split System (AC & HP) KIT USAGE A = Original B = 2nd Generation MAJOR SERIES 0 = Generic or Not Applicable 2 = R−22 4 = R−410A REFRIGERANT Product Identifier Number Package Quantity Type of Kit(Example: CH = Crankcase Heater)

N A S A 0 0 1 01 C H

2 428 04 5102 00

428 04 510200 3

TECHNICAL SUPPORT MANUAL Split System Heat Pump: N4H3

Model Sizes: 18, 24, 30, 36, 42, 48

1. Symbols are electrical representation only.

2. Compressor and fan motor furnished with inherent thermal protection.

3. To be wired in accordance with National Electric N.E.C. and local codes.

4. N.E.C. class 2, 24 V circuit, min. 40 VA required, 60 VA on units installed with LLS.

5. Connection for typical heat pump thermostat. For other arrangements see installation instructions.

6. Use copper conductors only. Use conductors suitable for at least 75°C (167°F).

7. If indoor section has a transformer with a grounded secondary, connect the grounded side to “C” on the circuit board.

8. When start capacitor and relay are installed, start thermistor (PTC) is not used.

9. CH not used on all units.

10. If any of the original wire, as supplied, must be replaced, use the same or equivalent wire.

11. Check all electrical connections inside control box for tightness.

12. Do not attempt to operate unit until service valves have been opened.

13. Do not rapid cycle compressor. Compressor must be off 3 minutes to allow pressures to equalize between high and low side before starting.

4 428 04 5102 00

TECHNICAL SUPPORT MANUAL Split System Heat Pump: N4H3

Model Size: 60

1. Symbols are electrical representation only.

2. Compressor and fan motor furnished with inherent thermal protection.

3. To be wired in accordance with National Electric N.E.C. and local codes.

4. N.E.C. class 2, 24 V circuit, min. 40 VA required, 60 VA on units installed with LLS.

5. Connection for typical heat pump thermostat. For other arrangements see installation instructions.

6. Use copper conductors only. Use conductors suitable for at least 75°C (167°F).

7. If indoor section has a transformer with a grounded secondary, connect the grounded side to “C” on the circuit board.

8. When start capacitor and relay are installed, start thermistor (PTC) is not used.

9. CH not used on all units.

10. If any of the original wire, as supplied, must be replaced, use the same or equivalent wire.

11. Check all electrical connections inside control box for tightness.

12. Do not attempt to operate unit until service valves have been opened.

13. Do not rapid cycle compressor. Compressor must be off 3 minutes to allow pressures to equalize between high and low side before starting.

TECHNICAL SUPPORT MANUAL Split System Heat Pump: N4H3

R−410A CHARGING CHART

Rating Plate (required) Subcooling Temperature ° F (° C)

Measured Liquid

Pressure (psig)

251 78 26 76 24 74 23 72 22 70 21 68 20 259 80 27 78 26 76 24 74 23 72 22 70 21 266 82 28 80 27 78 26 76 24 74 23 72 22 274 84 29 82 28 80 27 78 26 76 24 74 23 283 86 30 84 29 82 28 80 27 78 26 76 24 291 88 31 86 30 84 29 82 28 80 27 78 26 299 90 32 88 31 86 30 84 29 82 28 80 27 308 92 33 90 32 88 31 86 30 84 29 82 28 317 94 34 92 33 90 32 88 31 86 30 84 29 326 96 36 94 34 92 33 90 32 88 31 86 30 335 98 37 96 36 94 34 92 33 90 32 88 31 345 100 38 98 37 96 36 94 34 92 33 90 32 364 104 40 102 39 100 38 98 37 96 36 94 34 374 106 41 104 40 102 39 100 38 98 37 96 36 384 108 42 106 41 104 40 102 39 100 38 98 37 395 110 43 108 42 106 41 104 40 102 39 100 38 406 112 44 110 43 108 42 106 41 104 40 102 39 416 114 46 112 44 11 0 43 108 42 106 41 104 40 427 116 47 114 46 11 2 44 11 0 43 108 42 106 41 439 118 48 116 47 11 4 46 11 2 44 11 0 43 108 42 450 120 49 118 48 116 47 11 4 46 11 2 44 11 0 43 462 122 50 120 49 118 48 116 47 11 4 46 11 2 44 474 124 51 122 50 120 49 118 48 116 47 11 4 46

° F (° C) ° F (° C) ° F (° C) ° F (° C) F (° C) F (° C)

6 3 8 4 10 6 12 7 14 8 16 9

R−410A Required Liquid Line Temperature ° F (° C)

428 04 510200 5

6 428 04 5102 00

MULTIPLYING FACTORS

(Refer to pages 7−13)

† Total capacities are net (I.D. blower heat subtracted) system capacities based on 25’ line set.

If additional tubing length and/or indoor unit is located above outdoor unit, a slight variation in capacity may occur.

†† At TVA rating indoor condition (75 °F db, 63 °F wb), all other indoor air temperatures are at 80 ° F db

If additional tubing length and/or indoor unit is located above outdoor unit, a slight variation in capacity may occur.

* System amps are total of indoor and outdoor amps.

‡ Chart data is for 80° F indoor dry bulb. For indoor db temperatures other than 80° F, measure Indoor db and Indoor CFM, and plug these into the formula below. Measure outdoor db and indoor wet bulb, apply these to the chart above, find MBh and S/T, and plug these into the formula below. (Note: if indoor db is the only thing changing, total capacity, MBh, stays the same.)

TECHNICAL SUPPORT MANUAL Split System Heat Pump: N4H3

Sensible Capacity at Indoor db LOWER than 80 ° F = ( MBh x S/T ) −

Sensible Capacity at Indoor db HIGHER than 80 ° F = ( MBh x S/T ) +

( 80 − Indoor db ) x 835 x Indoor CFM

(

( Indoor db − 80 ) x 835 x Indoor CFM

(

1000

) )

428 04 510200 7

018 Size Outdoor With FS(M,U)4P18**A* Indoor Cooling

Outdoor Ambient Temperature − Degrees F, Dry Bulb

Entering Indoor Temperature − Degrees F, Wet Bulb

2776††36267527

018 Size Outdoor With FS(M,U)4P18**A* Indoor Heating

Outdoor Ambient Temperature − Degrees F, Dry Bulb

Entering Indoor Temperature − Degrees F, Dry Bulb

595857

†362675

76†

7565707

6††36267527

565

527

3626

††

76757473727173−

756570

776

525

600

675

525

600

675

COOLING

MBh† 16.57 17.25 17.63 19.20 21.18 15.86 16.34 16.69 18.17 20.21 14.86 15.16 15.62 17.06 19.07 13.70 13.73 13.86 15.82 17.74 12.53 12.56 12.27 13.85 16.30

S/T‡ 1.00 0.91 0.72 0.69 0.51 1.00 0.93 0.74 0.71 0.52 1.00 0.97 0.76 0.73 0.53 1.00 1.00 0.80 0.75 0.54 1.00 1.00 0.85 0.80 0.55

AMPS* 5.36 5.37 5.38 5.41 5.45 5.98 6.00 6.01 6.06 6.12 6.59 6.62 6.67 6.76 6.85 7.32 7.32 7.32 7.50 7.66 8.14 8.14 8.13 8.22 8.51

HI PR 269 272 273 276 282 311 313 314 319 325 352 354 358 365 372 400 400 400 413 424 453 453 452 458 477

LO PR 125 129 131 140 152 128 132 134 143 155 134 135 136 146 159 140 140 141 149 163 146 147 145 154 166

MBh† 17.35 17.73 18.07 19.62 21.58 16.59 16.77 17.05 18.58 20.59 15.74 15.77 15.96 17.40 19.44 14.46 14.49 14.24 16.13 18.08 13.18 13.20 12.56 14.21 16.60

S/T‡ 1.00 0.95 0.75 0.72 0.52 1.00 0.98 0.77 0.74 0.53 1.00 1.00 0.79 0.76 0.54 1.00 1.00 0.84 0.79 0.56 1.00 1.00 0.89 0.85 0.58

AMPS*

HI PR 272 273 274 278 283 314 314 315 320 326 359 359 360 366 373 403 403 402 415 425 456 456 453 461 480

LO PR 130 133 134 143 155 134 135 137 146 158 138 138 139 149 162 144 144 143 152 166 151 151 147 156 169

MBh† 18.03 18.14 18.39 19.94 21.86 17.20 17.22 17.34 18.88 20.88 16.32 16.34 16.22 17.66 19.71 15.13 15.16 14.55 16.37 18.36 13.73 13.76 12.81 14.49 16.80

S/T‡ 1.00 0.99 0.78 0.75 0.54 1.00 1.00 0.80 0.77 0.55 1.00 1.00 0.83 0.80 0.56 1.00 1.00 0.87 0.83 0.58 1.00 1.00 0.93 0.89 0.60

AMPS* 5.58 5.58 5.58 5.61 5.67 6.22 6.22 6.23 6.27 6.35 6.92 6.92 6.91 6.99 7.08 7.61 7.62 7.56 7.75 7.89 8.41 8.41 8.36 8.48 8.78

HI PR 274 274 275 279 285 316 316 317 321 328 362 362 361 368 375 408 408 404 417 427 459 459 455 463 482

LO PR 135 136 137 146 157 139 139 139 149 161 142 143 141 152 164 148 148 145 154 168 154 154 149 158 171

HEATING

MBh† 5.41 5.15 4.87 7.54 7.27 6.99 10.08 9.58 9.27 12.38 12.15 11.92 14.90 14.63 14.35 17.69 17.39 17.07 19.98 19.80 19.59 22.15 22.03 21.88

T/R 10.3 0 9.80 9.20 14.40 13.80 13.30 19.20 18.20 17.60 23.60 23.10 22.60 28.4 0 27.80 27.20 33.70 33.00 32.40 38.00 37.60 37.10 42.20 41.90 41.50

AMPS*

HI PR 216 231 247 231 247 264 251 266 283 269 287 306 293 311 329 319 339 358 340 360 381 362 384 406

LO PR 39 39 40 50 50 50 62 62 63 76 76 77 92 92 93 110 110 111 124 126 127 138 140 142

MBh† 5.52 5.27 4.98 7.67 7.41 7.13 10.23 9.75 9.44 12.55 12.33 12.09 15.13 14.85 14.57 17.81 17.60 17.33 19.81 19.72 19.57 21.62 21.65 21.60

T/R 9.20 8.80 8.30 12.80 12.30 11.80 17.00 16.20 15.70 20.90 20.50 20.10 25.20 24.70 24.20 29.70 29.30 28.70 33.00 32.80 32.50 36.00 36.00 35.80

AMPS*

HI PR 213 229 245 227 243 260 244 259 277 261 279 297 282 300 319 304 324 344 321 342 364 338 361 384

LO PR 39 39 40 50 50 50 62 62 63 76 76 76 92 92 93 108 110 111 120 123 125 131 135 137

MBh† 5.62 5.37 5.09 7.79 7.54 7.26 10.36 9.93 9.59 12.71 12.48 12.24 15.32 15.04 14.76 17.79 17.66 17.47 19.61 19.54 19.47 20.99 21.11 21.18

T/R 8.30 7.90 7.50 11.50 11.10 10.70 15.30 14.70 14.10 18.80 18.50 18.10 22.70 22.20 21.80 26.30 26.10 25.80 29.10 28.90 28.70 31.10 31.20 31.20

AMPS* 4.90 5.10 5.32 5.09 5.31 5.53 5.29 5.50 5.74 5.45 5.70 5.96 5.67 5.93 6.19 5.87 6.15 6.45 6.05 6.35 6.66 6.19 6.52 6.87

HI PR 211 226 243 223 240 256 239 255 272 254 272 290 274 292 311 292 312 333 307 328 350 319 342 365

LO PR 39 39 39 50 50 50 62 62 63 76 76 76 91 92 92 106 108 110 117 120 122 125 129 132

5.48 5.49 5.48 5.51 5.56 6.10 6.11 6.12 6.17 6.23 6.78 6.79 6.79 6.88 6.96 7.46 7.46 7.44 7.63 7.77 8.28 8.28 8.24 8.35 8.65

4.78 4.98 5.19 5.01 5.22 5.45 5.26 5.46 5.70 5.48 5.73 5.99 5.74 6.00 6.28 6.06 6.36 6.65 6.32 6.62 6.94 6.61 6.94 7.28

4.84 5.04 5.25 5.04 5.26 5.48 5.27 5.47 5.71 5.45 5.70 5.96 5.69 5.95 6.22 5.94 6.23 6.53 6.15 6.46 6.77 6.36 6.70 7.04

††362675MFC

570756MFC

075657

TECHNICAL SUPPORT MANUAL Split System Heat Pump: N4H3

8 428 04 5102 00

700

800

900

700

800

900

024 Size Outdoor With FS(M,U)4P24**A* Indoor Cooling

COOLING

MBh† 21.73 22.66 23.14 25.12 27.51 20.86 21.53 21.98 23.90 26.44 19.90 20.32 20.71 22.54 25.14 18.82 18.98 19.31 21.08 23.57 17.30 17.34 17.31 19.47 21.87

S/T‡ 1.00 0.91 0.73 0.70 0.52 1.00 0.93 0.74 0.71 0.52 1.00 0.96 0.76 0.73 0.53 1.00 0.99 0.78 0.75 0.54 1.00 1.00 0.82 0.78 0.55

AMPS*

HI PR 277 279 281 286 292 319 321 323 329 336 367 368 369 377 385 418 419 420 429 439 468 468 468 484 497

LO PR

MBh† 22.73 23.26 23.71 25.62 27.98 21.80 22.09 22.46 24.42 26.92 20.78 20.88 21.16 23.00 25.63 19.66 19.69 19.71 21.50 24.08 18.32 18.36 17.82 19.84 22.24

S/T‡

AMPS* 7.20 7.23 7.24 7.34 7.51 8.00 8.02 8.04 8.17 8.36 8.89 8.90 8.92 9.09 9.30 9.90 9.91 9.90 10.09 10.34 10.97 10.98 10.86 11.18 11.50

HI PR 280 282 282 287 293 323 324 325 331 338 370 371 371 379 387 423 423 423 431 442 477 477 472 487 500

LO PR 128 130 132 141 151 131 133 134 144 155 135 136 137 147 159 139 140 139 149 163 145 145 143 152 166

MBh†

S/T‡ 1.00 0.99 0.79 0.75 0.54 1.00 1.00 0.80 0.77 0.55 1.00 1.00 0.83 0.80 0.56 1.00 1.00 0.86 0.83 0.58 1.00 1.00 0.90 0.86 0.60

AMPS*

HI PR 282 283 284 288 295 326 326 326 332 340 374 374 373 381 389 426 427 425 433 443 483 483 477 489 502

LO PR 133 133 134 143 153 136 136 137 146 157 140 140 139 149 161 144 144 142 152 165 149 149 144 154 168

HEATING

MBh† 7.43 7.00 6.53 10.13 9.69 9.23 12.97 12.55 12.09 16.44 15.77 15.20 19.51 19.17 18.83 22.84 22.46 22.08 26.62 26.16 25.71 30.72 30.32 29.90

T/R 10.6 0 10.00 9.30 14.50 13.80 13.10 18.60 17.90 17.20 23.50 22.50 21.70 27.90 27.40 26.80 32.70 32.10 31.40 38.10 37.40 36.60 43.90 43.30 42.60

AMPS* 6.50 6.76 7.04 6.86 7.15 7.45 7.14 7.45 7.76 7.44 7.74 8.06 7.71 8.07 8.45 8.06 8.42 8.82 8.55 8.94 9.34 9.09 9.50 9.93

HI PR 219 234 250 234 250 266 251 267 284 273 288 305 295 313 332 320 339 359 349 369 389 377 398 419

LO PR 38 38 38 48 48 49 60 60 61 73 74 74 89 89 90 106 106 107 125 125 126 144 145 146

MBh† 7.60 7.16 6.69 10.32 9.89 9.43 13.20 12.78 12.33 16.68 16.33 15.50 19.78 19.45 19.11 23.16 22.80 22.40 27.04 26.59 26.13 30.78 30.48 30.11

T/R 9.50 8.90 8.30 12.90 12.40 11.80 16.50 16.00 15.40 20.90 20.40 19.30 24.80 24.30 23.80 29.00 28.50 27.90 33.90 33.20 32.60 38.50 38.10 37.50

AMPS* 6.56 6.83 7.10 6.89 7.18 7.48 7.13 7.45 7.76 7.39 7.73 8.02 7.61 7.98 8.35 7.93 8.30 8.68 8.35 8.76 9.16 8.79 9.21 9.64

HI PR 216 231 247 230 245 262 245 261 278 264 282 297 284 302 321 307 326 346 333 354 374 357 378 399

LO PR 37 38 38 48 48 49 60 60 61 73 74 74 89 89 89 105 106 107 124 125 125 141 143 144

MBh† 7.75 7.31 6.83 10.49 10.06 9.61 13.41 12.99 12.53 16.88 16.5 4 15.79 20.02 19.67 19.32 23.44 23.06 22.69 27.26 26.90 26.46 30.66 30.43 30.17

T/R 8.60 8.10 7.60 11.70 11.20 10.60 14.90 14.40 13.90 18.80 18.40 17.50 22.30 21.80 21.40 26.10 25.60 25.10 30.30 29.90 29.30 34.10 33.80 33.40

AMPS* 6.63 6.90 7.18 6.94 7.23 7.53 7.16 7.47 7.79 7.38 7.71 8.02 7.56 7.92 8.30 7.85 8.22 8.60 8.20 8.60 9.02 8.58 9.00 9.43

HI PR 214 229 245 226 242 258 240 256 273 258 275 291 276 294 313 297 316 335 319 340 361 340 362 384

LO PR 37 38 38 48 48 49 60 60 61 73 73 74 88 89 89 105 106 106 123 124 125 139 140 142

7.03 7.08 7.10 7.20 7.35 7.82 7.86 7.89 8.02 8.20 8.71 8.74 8.77 8.93 9.14 9.69 9.71 9.73 9.92 10.18 10.67 10.68 10.67 11.0 1 11.32

123 127 129 138 149 126 130 131 141 153 130 132 134 144 156 134 135 137 147 160 141 141 141 150 163

1.00 0.95 0.76 0.73 0.53 1.00 0.98 0.77 0.74 0.54 1.00 0.99 0.79 0.77 0.55 1.00 1.00 0.82 0.79 0.56 1.00 1.00 0.86 0.82 0.58

23.58 23.78 24.12 26.01 28.32 22.59 22.63 22.83 24.80 27.27 21.52 21.55 21.49 23.34 25.98 20.34 20.37 20.01 21.81 24.41 19.02 19.05 18.28 20.12 22.53

7.35 7.36 7.37 7.48 7.66 8.17 8.17 8.18 8.31 8.51 9.08 9.08 9.07 9.23 9.45 10.09 10.09 10.05 10.24 10.49 11.20 11.20 11.08 11.35 11.66

73−

Outdoor Ambient Temperature − Degrees F, Dry Bulb

Entering Indoor Temperature − Degrees F, Wet Bulb

024 Size Outdoor With FS(M,U)4P24**A* Indoor Heating

Outdoor Ambient Temperature − Degrees F, Dry Bulb

Entering Indoor Temperature − Degrees F, Dry Bulb

TECHNICAL SUPPORT MANUAL Split System Heat Pump: N4H3

511501595857

2776††3626752776††3626752776††3626752776††3626752776††362675MFC

76757473

570756570756570756570756570756570756570756570756MFC

428 04 510200 9

030 Size Outdoor With FS(M,U)4P30**A* Indoor Cooling

Outdoor Ambient Temperature − Degrees F, Dry Bulb

Entering Indoor Temperature − Degrees F, Wet Bulb

030 Size Outdoor With FS(M,U)4P30**A* Indoor Heating

Outdoor Ambient Temperature − Degrees F, Dry Bulb

Entering Indoor Temperature − Degrees F, Dry Bulb

511501595857

2776††3626752776††3626752776††3626752776††3626752776††362675MFC

76757473

0756570756570756570756570756570756570756MFC

57075657

875

1000

1125

875

1000

1125

COOLING

MBh† 28.19 29.59 30.24 32.79 36.04 27.05 28.10 28.70 31.16 34.51 25.76 26.49 27.05 29.41 32.77 23.68 23.93 24.46 27.49 30.80 21.79 21.84 21.58 24.63 28.49

S/T‡ 1.00 0.91 0.72 0.70 0.52 1.00 0.93 0.74 0.71 0.52 1.00 0.95 0.76 0.73 0.53 1.00 1.00 0.79 0.75 0.54 1.00 1.00 0.83 0.79 0.55

AMPS*

HI PR 275 278 279 283 289 317 319 321 327 333 363 365 367 374 382 406 407 409 425 434 460 461 460 470 491

LO PR

MBh† 29.47 30.35 30.95 33.51 36.70 28.26 28.81 29.34 31.88 35.16 26.92 27.18 27.62 30.00 33.39 24.99 25.05 25.16 28.03 31.40 22.89 22.97 22.32 25.19 29.09

S/T‡

AMPS* 9.63 9.66 9.67 9.74 9.86 10.60 10.62 10.64 10.74 10.86 11.69 11.70 11.72 11.86 11.98 12.74 12.75 12.75 13.09 13.24 14.03 14.03 13.99 14.23 14.70

HI PR 278 280 280 285 291 320 322 323 328 335 367 368 369 376 383 412 412 412 427 436 464 464 462 473 493

LO PR 127 130 132 141 151 130 132 134 144 155 134 135 136 146 158 140 140 140 149 162 146 146 144 153 165

MBh†

S/T‡ 1.00 0.98 0.78 0.75 0.54 1.00 1.01 0.80 0.77 0.55 1.00 1.00 0.82 0.79 0.56 1.00 1.00 0.85 0.82 0.57 1.00 1.00 0.91 0.86 0.59

AMPS*

HI PR 280 281 282 286 293 323 324 324 330 336 371 371 371 377 384 421 421 416 429 437 468 469 464 478 494

LO PR 131 133 134 143 154 135 135 136 146 157 138 139 139 149 161 143 143 142 151 164 149 149 145 155 167

HEATING

MBh† 10.66 10.18 9.68 13.93 13.46 12.95 17.49 17.00 16.48 21.91 21.45 20.43 25.80 25.38 25.00 30.03 29.57 29.10 34.69 34.19 33.68 39.03 38.55 38.06

T/R 12.1 0 11.60 11.00 15.80 15.30 14.70 19.90 19.30 18.70 24.90 24.40 23.10 29.40 28.80 28.30 34.20 33.60 33.00 39.50 38.80 38.10 44.40 43.80 43.10

AMPS* 8.46 8.80 9.16 8.84 9.20 9.57 9.22 9.59 9.98 9.70 10.09 10.43 10.12 10.56 11.03 10.6 2 11.08 11.56 11.11 11.59 12.09 11.56 12.04 12.55

HI PR 224 239 255 239 255 271 256 272 289 279 296 311 301 320 340 327 346 366 352 372 393 374 394 415

LO PR 37 37 37 47 48 48 59 59 60 73 73 74 88 88 89 105 106 106 123 124 125 139 140 141

MBh† 10.88 10.40 9.89 14.17 13.71 13.21 17.79 17.29 16.79 22.22 21.82 20.85 26.15 25.73 25.34 30.41 30.00 29.52 35.02 34.56 34.11 39.03 38.61 38.16

T/R 10.8 0 10.30 9.80 14.10 13.60 13.10 17.70 17.20 16.60 22.10 21.70 20.70 26.00 25.60 25.10 30.30 29.80 29.30 34.90 34.30 33.80 38.90 38.40 37.80

AMPS* 8.54 8.89 9.24 8.89 9.25 9.62 9.22 9.60 9.99 9.65 10.06 10.40 10.03 10.46 10.91 10.47 10.92 11.3 9 10.88 11.34 11.83 11.25 11.73 12.23

HI PR 220 236 252 234 250 266 249 266 283 270 288 303 290 309 328 313 333 353 335 355 375 354 374 395

LO PR 37 37 37 47 47 48 59 59 60 72 73 73 88 88 89 104 105 106 122 123 123 136 137 139

MBh† 11.08 10.60 10.09 14.39 13.94 13.43 18.03 17.56 17.05 22.47 22.10 21.26 26.45 26.04 25.61 30.78 30.34 29.89 35.19 34.77 34.34 38.92 38.54 38.13

T/R 9.80 9.40 8.90 12.70 12.30 11.80 16.00 15.50 15.00 19.90 19.50 18.70 23.40 23.00 22.60 27.20 26.80 26.30 31.10 30.70 30.20 34.40 34.00 33.60

AMPS* 8.64 8.99 9.34 8.96 9.32 9.70 9.26 9.64 10.04 9.65 10.06 10.42 9.99 10.42 10.86 10.40 10.84 11.30 10.73 11.19 11.67 11.05 11.53 12.02

HI PR 218 233 249 230 246 263 244 261 278 263 281 297 282 300 319 303 322 342 322 341 362 339 359 379

LO PR 37 37 37 47 47 48 59 59 60 72 73 73 88 88 88 104 105 105 120 121 122 134 135 136

9.43 9.47 9.49 9.56 9.67 10.38 10.42 10.45 10.55 10.67 11.45 11.49 11.52 11.66 11.79 12.47 12.49 12.52 12.87 13.06 13.81 13.81 13.79 14.00 14.51

121 126 129 138 149 125 129 131 141 152 129 132 133 143 156 135 136 137 146 159 141 142 142 150 163

1.00 0.95 0.75 0.72 0.53 1.00 0.97 0.77 0.74 0.54 1.00 1.00 0.79 0.76 0.54 1.00 1.00 0.82 0.78 0.56 1.00 1.00 0.87 0.83 0.57

30.57 31.02 31.52 34.05 37.18 29.27 29.43 29.83 32.39 35.63 27.88 27.92 28.05 30.48 33.84 26.31 26.34 25.78 28.43 31.82 23.93 23.97 22.82 25.84 29.52

9.83 9.84 9.85 9.93 10.05 10.81 10.82 10.83 10.92 11.05 11.91 11.91 11.91 12.04 12.16 13.12 13.12 13.00 13.29 13.42 14.29 14.29 14.19 14.51 14.87

73−

TECHNICAL SUPPORT MANUAL Split System Heat Pump: N4H3

10 428 04 5102 00

1050

1200

1350

1050

1200

1350

COOLING

HEATING

036 Size Outdoor With FS(M,U)4P36**A* Indoor Cooling

Outdoor Ambient Temperature − Degrees F, Dry Bulb

Entering Indoor Temperature − Degrees F, Wet Bulb

†362675MFC

MBh† 32.87 33.82 34.49 37.45 41.13 31.51 32.10 32.69 35.54 39.37 29.94 30.24 30.73 33.44 37.37 27.40 27.46 27.41 31.19 35.12 25.16 25.21 24.39 27.52 32.32

S/T‡

AMPS* 10.65 10.69 10.72 10.82 10.95 11.76 11.78 11.81 11.94 12.09 12.97 12.99 13.02 13.20 13.35 14.15 14.15 14.15 14.56 14.79 15.69 15.69 15.64 15.84 16.44

HI PR 276 278 279 283 289 319 320 321 327 333 365 366 367 375 381 409 409 409 424 434 463 463 461 469 491

LO PR 119 122 123 132 143 122 124 126 135 146 126 127 128 138 149 132 133 132 140 153 138 139 136 145 156

MBh† 34.22 34.64 35.18 38.15 41.75 32.77 32.90 33.29 36.22 39.98 31.18 31.23 31.29 34.00 37.95 28.79 28.78 28.07 31.72 35.68 26.34 26.35 24.87 28.15 32.94

S/T‡ 1.00 0.96 0.76 0.73 0.53 1.00 0.99 0.78 0.75 0.54 1.00 1.00 0.80 0.78 0.55 1.00 1.00 0.85 0.80 0.56 1.00 1.00 0.90 0.86 0.58

AMPS* 10.91 10.93 10.94 11.04 11.18 12.02 12.03 12.04 12.17 12.32 13.26 13.27 13.26 13.44 13.58 14.47 14.46 14.40 14.82 15.02 15.97 15.96 15.87 16.11 16.65

HI PR 279 280 280 285 291 322 322 323 328 335 369 369 369 376 383 414 413 411 427 435 466 466 463 472 492

LO PR

MBh† 35.40 35.46 35.76 38.68 42.20 33.83 33.86 33.77 36.74 40.43 32.18 32.23 31.73 34.56 38.38 30.09 30.36 28.61 32.12 36.08 27.39 27.43 25.36 28.66 33.37

S/T‡ 1.00 1.00 0.79 0.76 0.54 1.00 1.00 0.81 0.79 0.55 1.00 1.00 0.84 0.81 0.56 1.00 1.00 0.88 0.84 0.58 1.00 1.00 0.94 0.90 0.60

AMPS* 11.15 11.15 11.16 11.26 11.40 12.28 12.28 12.27 12.39 12.54 13.54 13.54 13.50 13.65 13.81 14.83 14.92 14.65 15.07 15.24 16.26 16.26 16.11 16.38 16.87

HI PR 281 281 281 286 292 325 325 324 330 336 373 373 371 377 384 420 423 413 429 436 470 470 464 475 493

LO PR 128 128 128 137 147 131 131 131 140 151 135 135 133 142 154 139 139 136 145 157 145 146 140 149 160

MBh†

T/R 11.3 0 10.70 10.10 14.60 14.10 13.50 18.40 17.80 17.20 23.00 22.50 21.40 27.00 26.50 26.00 31.40 30.90 30.40 36.60 36.00 35.30 41.30 40.70 40.20

AMPS*

HI PR 222 237 252 236 252 268 253 269 286 275 292 307 296 315 334 320 340 359 345 365 385 367 388 409

LO PR 36 36 36 46 46 47 58 58 59 71 71 72 86 86 87 102 103 103 120 121 122 136 137 138

MBh† 12.45 11.87 11.22 16.15 15.58 14.96 20.25 19.66 19.04 25.22 24.79 23.82 29.67 29.19 28.72 34.53 34.00 33.47 40.03 39.52 38.97 44.72 44.28 43.79

T/R 10.1 0 9.60 9.00 13.00 12.60 12.00 16.40 15.80 15.30 20.40 20.00 19.10 24.00 23.50 23.10 27.90 27.40 26.90 32.30 31.80 31.30 36.10 35.70 35.20

AMPS*

HI PR 219 234 250 232 247 264 247 263 280 267 285 300 286 305 324 309 328 347 329 349 370 349 369 390

LO PR 36 36 36 46 46 47 58 58 58 71 71 72 86 86 87 102 102 103 119 120 121 134 135 136

MBh† 12.72 12.11 11.45 16.44 15.85 15.22 20.56 19.97 19.35 25.51 25.09 24.61 29.99 29.54 29.07 34.94 34.39 33.86 40.21 39.75 39.27 44.54 44.15 43.72

T/R 9.10 8.70 8.20 11.80 11.30 10.90 14.80 14.30 13.80 18.30 18.00 17.60 21.50 21.20 20.80 25.10 24.60 24.20 28.90 28.50 28.10 32.00 31.60 31.20

AMPS* 9.52 9.95 10.40 9.85 10.28 10.73 10.18 10.62 11.08 10.62 11.09 11.57 11.01 11.50 12.00 11.49 11.98 12.49 11.89 12.40 12.93 12.29 12.82 13.36

HI PR 217 232 247 228 244 261 242 258 276 260 278 296 278 297 316 299 318 338 318 337 357 335 355 376

LO PR 36 36 36 46 46 47 57 58 58 71 71 71 85 86 86 101 102 103 118 119 120 131 132 134

1.00 0.92 0.73 0.70 0.51 1.00 0.94 0.75 0.72 0.52 1.00 0.97 0.77 0.74 0.53 1.00 1.00 0.81 0.76 0.54 1.00 1.00 0.86 0.81 0.56

124 125 126 135 145 127 127 128 138 149 131 131 131 140 152 136 137 134 143 155 142 142 138 147 158

12.21 11.61 10.96 15.85 15.28 14.65 19.91 19.31 18.70 24.90 24.43 23.29 29.27 28.81 28.36 34.05 33.54 33.08 39.64 39.06 38.47 44.76 44.26 43.74

9.29 9.72 10.16 9.68 10.11 10.55 10.09 10.52 10.98 10.62 11.08 11.48 11.09 11.58 12.11 11.65 12.15 12.69 12.22 12.75 13.31 12.75 13.29 13.87

9.40 9.82 10.27 9.75 10.18 10.63 10.12 10.56 11.01 10.59 11.06 11.47 11.03 11.50 12.02 11.53 12.03 12.55 12.01 12.52 13.07 12.47 13.00 13.55

†

0756

776

†362675

5657

76†

036 Size Outdoor With FS(M,U)4P36**A* Indoor Heating

Outdoor Ambient Temperature − Degrees F, Dry Bulb

Entering Indoor Temperature − Degrees F, Dry Bulb

5707

595857

††362675

5707

67527

52776††36

570756

3626

††

76757473727173−

TECHNICAL SUPPORT MANUAL Split System Heat Pump: N4H3

428 04 510200 11

1225

1400

1575

1225

1400

1575

COOLING

HEATING

042 Size Outdoor With FS(M,U)4P42**A* Indoor Cooling

Outdoor Ambient Temperature − Degrees F, Dry Bulb

Entering Indoor Temperature − Degrees F, Wet Bulb

†362675MFC

MBh† 39.22 40.82 41.67 45.21 49.72 37.50 38.60 39.39 42.76 47.29 35.64 36.30 36.98 40.16 44.72 32.84 32.90 33.46 37.51 41.99 30.17 30.22 29.80 33.59 38.99

S/T‡

AMPS* 12.79 12.78 12.77 12.66 12.46 14.27 14.28 14.29 14.28 14.17 15.84 15.87 15.90 16.00 15.94 17.33 17.33 17.37 17.78 17.83 19.09 19.10 19.06 19.43 19.86

HI PR 291 294 295 301 309 336 339 340 347 355 386 388 389 397 405 434 434 435 451 459 488 489 487 501 517

LO PR 123 128 130 139 150 127 130 132 142 154 131 133 135 145 157 138 138 139 148 160 144 144 143 152 163

MBh† 40.93 41.82 42.65 46.14 50.57 39.09 39.55 40.19 43.65 48.10 37.15 37.22 37.69 41.00 45.44 34.73 34.82 34.41 38.19 42.65 31.67 31.73 30.48 34.49 39.61

S/T‡ 1.00 0.94 0.74 0.71 0.52 1.00 0.96 0.76 0.73 0.53 1.00 1.00 0.78 0.76 0.54 1.00 1.00 0.82 0.78 0.55 1.00 1.00 0.87 0.82 0.56

AMPS* 12.99 12.98 13.00 12.83 12.64 14.51 14.51 14.52 14.49 14.35 16.14 16.14 16.15 16.21 16.15 17.77 17.78 17.71 18.03 18.06 19.47 19.48 19.35 19.78 20.09

HI PR 294 296 298 303 311 340 341 342 349 357 391 391 392 399 407 442 442 440 453 461 494 495 490 505 519

LO PR

MBh† 42.40 42.70 43.32 46.84 51.18 40.43 40.49 40.80 44.29 48.67 38.38 38.42 38.21 41.62 45.96 36.20 36.25 35.46 38.79 43.10 32.99 33.05 31.05 35.46 40.03

S/T‡ 1.00 0.97 0.77 0.74 0.53 1.00 1.00 0.79 0.76 0.54 1.00 1.00 0.82 0.79 0.55 1.00 1.00 0.85 0.82 0.57 1.00 1.00 0.91 0.86 0.58

AMPS* 13.18 13.16 13.15 13.01 12.82 14.74 14.74 14.74 14.68 14.55 16.40 16.40 16.39 16.41 16.36 18.16 18.17 18.10 18.25 18.29 19.85 19.86 19.64 20.20 20.33

HI PR 297 298 299 305 312 344 344 344 351 359 394 394 393 400 409 448 448 445 454 462 500 500 493 511 520

LO PR 133 134 135 144 155 137 137 138 147 158 141 141 140 150 161 145 145 143 153 164 151 152 147 156 167

MBh†

T/R 11.0 0 10.40 9.80 14.50 13.90 13.30 18.20 17.60 17.00 22.30 21.60 21.00 27.00 26.50 26.00 31.30 30.70 30.10 36.30 35.60 35.00 42.20 41.40 40.60

AMPS*

HI PR 222 237 252 236 251 267 251 267 284 269 286 303 292 311 330 314 333 353 340 359 379 369 389 411

LO PR 33 34 34 43 44 44 55 55 56 67 68 68 82 82 82 98 98 99 117 117 118 138 139 139

MBh† 14.58 13.84 13.05 19.22 18.49 17.73 24.10 23.38 22.63 29.47 28.63 27.85 35.50 34.93 34.35 41.16 40.50 39.84 47.85 47.08 46.32 55.62 54.80 53.95

T/R 9.80 9.30 8.80 13.00 12.40 11.90 16.20 15.70 15.20 19.90 19.30 18.70 23.90 23.50 23.00 27.70 27.20 26.70 32.20 31.70 31.10 37.50 36.90 36.20

AMPS*

HI PR 219 234 249 231 247 263 245 262 279 261 278 296 282 301 320 302 321 341 326 345 365 351 371 392

LO PR 33 34 34 43 44 44 55 55 55 67 68 68 82 82 82 98 98 99 116 117 117 137 138 139

MBh† 14.86 14.12 13.33 19.53 18.81 18.05 24.45 23.74 22.99 30.07 29.06 28.28 35.90 35.35 34.76 41.65 40.98 40.32 48.46 47.68 46.90 56.12 55.39 54.61

T/R 8.90 8.40 7.90 11.70 11.20 10.80 14.60 14.20 13.70 18.00 17.40 16.90 21.50 21.10 20.70 24.90 24.50 24.00 29.00 28.50 28.00 33.60 33.10 32.60

AMPS*

HI PR 216 231 247 228 244 260 240 257 274 256 272 290 274 293 312 293 312 332 315 334 354 337 357 377

LO PR 33 34 34 43 44 44 54 55 55 67 67 68 81 82 82 98 98 98 116 117 117 136 137 138

1.00 0.90 0.71 0.69 0.51 1.00 0.92 0.73 0.70 0.51 1.00 0.95 0.75 0.72 0.52 1.00 1.00 0.78 0.74 0.53 1.00 1.00 0.83 0.78 0.55

129 131 133 142 153 133 134 135 145 156 136 137 138 148 159 142 142 141 151 162 148 148 145 154 165

14.25 13.53 12.75 18.84 18.13 17.35 23.67 22.95 22.20 28.90 28.14 27.36 35.02 34.47 33.85 40.59 39.94 39.32 47.12 46.37 45.63 54.78 53.89 52.95

10.03 10.65 11.30 10.76 11.32 11.90 11.54 12.06 12.62 12.33 12.85 13.38 13.21 13.76 14.33 13.90 14.47 15.09 14.52 15.14 15.79 15.08 15.80 16.55

10.12 10.75 11.41 10.82 11.39 11.98 11.57 12.09 12.65 12.32 12.83 13.37 13.13 13.68 14.25 13.75 14.33 14.93 14.30 14.91 15.55 14.65 15.37 16.10

10.24 10.87 11.53 10.92 11.48 12.08 11.64 12.17 12.72 12.38 12.88 13.41 13.12 13.67 14.24 13.69 14.27 14.86 14.17 14.79 15.42 14.39 15.09 15.82

†

0756

776

†362675

5657

76†

042 Size Outdoor With FS(M,U)4P42**A* Indoor Heating

Outdoor Ambient Temperature − Degrees F, Dry Bulb

Entering Indoor Temperature − Degrees F, Dry Bulb

5707

595857

††362675

5707

67527

52776††36

570756

3626

††

76757473727173−

TECHNICAL SUPPORT MANUAL Split System Heat Pump: N4H3

12 428 04 5102 00

1400

1600

1800

1400

1600

1800

048 Size Outdoor With FS(M,U)4P48**A* Indoor Cooling

COOLING

MBh†

S/T‡ 1.00 0.90 0.72 0.69 0.51 1.00 0.92 0.73 0.70 0.51 1.00 0.95 0.75 0.72 0.52 1.00 0.98 0.77 0.74 0.53 1.00 1.00 0.82 0.77 0.55

AMPS*

HI PR 277 280 281 284 289 319 321 322 329 333 366 368 369 375 381 417 418 419 426 433 469 469 468 480 490

LO PR

MBh† 46.75 47.79 48.72 52.82 57.59 44.69 45.24 46.02 50.01 55.20 42.59 42.70 43.30 47.00 52.34 40.38 40.44 40.49 44.03 49.24 37.22 37.30 36.09 40.91 45.93

S/T‡

AMPS* 14.81 14.81 14.82 14.71 14.66 16.56 16.57 16.60 16.65 16.65 18.38 18.38 18.40 18.58 18.65 20.32 20.32 20.32 20.55 20.73 22.33 22.34 22.21 22.69 22.95

HI PR 280 281 282 285 290 323 323 324 329 334 370 370 370 377 383 421 421 421 428 435 474 474 471 483 491

LO PR 129 132 134 143 152 133 134 136 146 157 137 137 138 148 161 141 141 141 151 164 146 147 144 153 167

MBh†

S/T‡ 1.00 0.98 0.78 0.74 0.53 1.00 1.00 0.80 0.77 0.54 1.00 1.00 0.82 0.79 0.56 1.00 1.00 0.85 0.82 0.57 1.00 1.00 0.89 0.85 0.59

AMPS*

HI PR 282 283 283 286 291 325 325 326 330 336 372 372 372 378 384 424 424 422 429 436 479 479 473 484 492

LO PR 134 135 136 145 154 138 138 138 148 159 141 141 141 151 163 145 145 143 153 166 149 150 146 156 169

HEATING

MBh† 18.01 17.38 16.69 23.17 22.54 21.85 28.77 28.07 27.33 35.00 34.54 34.06 40.92 40.31 39.73 47.57 46.83 46.11 55.36 54.47 53.62 64.43 63.45 62.50

AMPS* 12.59 13.09 13.64 13.11 13.63 14.19 13.69 14.23 14.81 14.38 14.99 15.63 15.06 15.69 16.36 15.83 16.50 17.21 16.78 17.49 18.22 17.65 18.44 19.25

HI PR 224 240 256 238 254 271 254 271 288 273 292 311 293 312 331 316 335 355 346 365 385 374 394 415

LO PR 35 35 36 45 46 46 57 57 58 70 70 71 85 85 86 101 102 102 121 121 122 142 143 143

MBh† 18.35 17.74 17.05 23.55 22.93 22.25 29.22 28.53 27.81 35.43 34.99 34.51 41.47 40.86 40.26 48.25 47.50 46.76 56.21 55.30 54.42 65.12 64.27 63.39

AMPS* 12.76 13.26 13.81 13.24 13.75 14.31 13.75 14.30 14.87 14.38 14.99 15.62 14.99 15.63 16.28 15.68 16.35 17.05 16.55 17.26 17.99 17.27 18.04 18.83

HI PR 220 236 253 233 249 267 247 264 282 265 283 302 283 301 321 304 323 343 332 351 371 357 376 397

LO PR 35 35 36 45 46 46 57 57 58 70 70 70 85 85 85 101 102 102 120 121 121 141 142 143

MBh† 18.65 18.06 17.37 23.89 23.29 22.61 29.73 28.95 28.22 35.82 35.34 34.89 41.95 41.33 40.72 48.83 48.07 47.32 56.97 56.03 55.09 65.45 64.66 63.83

AMPS* 12.95 13.45 14.00 13.40 13.91 14.46 13.88 14.41 14.98 14.45 15.05 15.67 15.01 15.65 16.29 15.64 16.32 17.01 16.32 17.10 17.88 17.05 17.81 18.60

HI PR 218 234 250 229 246 263 242 259 277 258 276 295 275 293 313 295 314 334 319 339 360 344 363 384

LO PR 35 35 36 45 46 46 57 57 57 70 70 70 85 85 85 101 101 102 120 121 121 140 141 142

44.75 46.64 47.63 51.73 56.73 42.85 44.16 45.07 48.96 54.26 40.89 41.69 42.48 46.12 51.46 38.73 39.06 39.75 43.28 48.38 35.24 35.32 35.14 40.21 45.13

14.50 14.52 14.53 14.46 14.38 16.21 16.25 16.27 16.38 16.36 17.99 18.03 18.06 18.23 18.35 19.90 19.93 19.96 20.20 20.41 21.85 21.85 21.83 22.33 22.63

124 128 130 140 150 127 131 133 143 154 131 133 135 145 158 135 136 138 148 161 142 143 142 151 164

1.00 0.94 0.75 0.72 0.52 1.00 0.97 0.76 0.74 0.53 1.00 1.00 0.78 0.76 0.54 1.00 1.00 0.81 0.78 0.55 1.00 1.00 0.86 0.81 0.57

48.48 48.86 49.56 53.60 58.16 46.26 46.33 46.72 50.78 55.85 44.01 44.07 43.90 47.70 52.99 41.70 41.76 41.06 44.57 49.84 39.19 39.24 36.89 41.43 46.49

15.10 15.09 15.08 14.98 14.94 16.90 16.90 16.91 16.93 16.94 18.74 18.74 18.72 18.89 18.95 20.70 20.71 20.66 20.88 21.04 22.87 22.87 22.60 23.04 23.27

3−

T/R 12.3 0 11.80 11.30 15.80 15.30 14.80 19.60 19.10 18.50 23.80 23.50 23.10 27.90 27.40 26.90 32.40 31.80 31.30 37.70 37.00 36.40 43.90 43.10 42.40

T/R 10.9 0 10.60 10.10 14.00 13.60 13.20 17.40 17.00 16.50 21.10 20.80 20.50 24.70 24.30 23.90 28.80 28.20 27.70 33.50 32.90 32.30 38.80 38.20 37.60

T/R 9.90 9.50 9.20 12.70 12.30 11.90 15.70 15.30 14.90 19.00 18.70 18.40 22.20 21.80 21.50 25.90 25.40 25.00 30.20 29.60 29.10 34.70 34.20 33.70

Outdoor Ambient Temperature − Degrees F, Dry Bulb

Entering Indoor Temperature − Degrees F, Wet Bulb

048 Size Outdoor With FS(M,U)4P48**A* Indoor Heating

Outdoor Ambient Temperature − Degrees F, Dry Bulb

Entering Indoor Temperature − Degrees F, Dry Bulb

TECHNICAL SUPPORT MANUAL Split System Heat Pump: N4H3

511501595857

2776††3626752776††3626752776††3626752776††3626752776††362675MFC

7675747372

570756570756570756570756570756570756570756570756MFC

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