Nortek 024KA Скачать руководство пользователя

Страница: 9 / 16

100

105

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125

130

Liquid Temperature (° F)

Liquid Pressure (psig)

200

220

240

260

280

300

320

340

360

380

400

420

440

460

480

500

520

540

560

580

600

135

Remove refrigerant if above curve

Add refrigerant if below curve

T4QE-024KA CHARGING CHART - COOLING

figure 4. charging chart for 2.5 ton models

(TXV Matches)

100

105

110

115

120

125

130

Liquid Temperature (° F)

Liquid Pressure (psig)

200

220

240

260

280

300

320

340

360

380

400

420

440

460

480

500

520

540

560

580

600

135

Remove refrigerant if above curve

Add refrigerant if below curve

T4QE-036KA CHARGING CHART - COOLING

figure 5. charging chart for 3 ton models

(TXV Matches)

Содержание 024KA

Страница 1: ... KEEP IN A SAFE PLACE FOR FUTURE REFERENCE Installation Instructions Heat Pump MAINTENANCE 7 Refrigerant Charging 7 Charging the Unit in AC Mode 7 Application Notes Charging Charts 8 Figure 3 Charging Chart for 2 Ton Models 8 Figure 4 Charging Chart for 2 5 Ton Models 9 Figure 5 Charging Chart for 3 Ton Models 9 Figure 6 Charging Chart for 3 5 Ton Models 10 Figure 7 Charging Chart for 4 Ton Models...

Страница 2: ...us conditions which may result in personal injury or property damage Installationofequipmentmayrequirebrazingoperations Installer must comply with safety codes and wear appropriate safety equipment safety glasses work gloves fire extinguisher etc when performing brazing operations Follow all precautions in the literature on tags and on labels provided with the equipment Read and thoroughly underst...

Страница 3: ...mmediately with the carrier Pleaseconsultyourdealerformaintenanceinformation and availability of maintenance contracts Please read all instructions before installing the unit Locating the Heat Pump Survey the job site to determine the best location for mounting the outdoor unit Overhead obstructions poorly ventilated areas and areas subject to accumulation of debris should be avoided See Figure 1 ...

Страница 4: ...ighten 4 Using two wrenches tighten the coupling halves until seated or a definite resistance is felt 5 Using a marker mark a line from the coupling union nut to the bulkhead then tighten an additional 1 6 turn See Table 1 for torque values Repeat for all couplings ELECTRICAL WIRING WARNING To avoid risk of electrical shock personal injury or death disconnect all electrical power to the unit befor...

Страница 5: ...rked 208V Optional equipment requiring connection to the power or control circuits must be wired in strict accordance of the NEC ANSI NFPA 70 applicable local codes and the instructions provided with the equipment Grounding WARNING The unit cabinet must have an uninterrupted or unbrokenelectricalgroundtominimizepersonal injury if an electrical fault should occur Do not use gas piping as an electri...

Страница 6: ...fy that the line voltage power leads are securely connected and the unit is properly grounded Verify that the low voltage wires are securely connected to the correct leads on the low voltage terminal strip Verify that the power supply branch circuit overcurrent protection is sized properly Verify that the thermostat is wired correctly Start Up Procedures WARNING This unit is equipped with a crankc...

Страница 7: ...not recommended and deviations from rated airflows or non listed combinations may require modification to the expansion device and refrigerant charging procedures for proper and efficient system operation For correct system charging refer to Figure 3 page 8 Figure 4 page 9 Figure 5 page 9 Figure 6 page 10 and Figure 7 page 10 The refrigerant charge can be checked and adjusted throughtheserviceport...

Страница 8: ...b cooling can vary over the range of operation Reference the charts to determine the ideal amount of sub cooling for a given liquid pressure Units charged to other values will not perform at the rated unit efficiency EER or rated Coefficient of Performance COP in heating mode Toinspectasystemsoperationusingqualityinstruments match the measured liquid temperature to the units chart The measured liq...

Страница 9: ...f below curve T4QE 024KA CHARGING CHART COOLING Figure 4 Charging Chart for 2 5 Ton Models TXV Matches 90 95 100 105 110 115 120 125 130 Liquid Temperature F Liquid Pressure psig 75 80 85 200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600 135 Remove refrigerant if above curve Add refrigerant if below curve T4QE 036KA CHARGING CHART COOLING Figure 5 Charging Chart f...

Страница 10: ...if below curve T4QE 042KA CHARGING CHART COOLING Figure 6 Charging Chart for 3 5 Ton Models TXV Matches 90 95 100 105 110 115 120 125 130 Liquid Temperature F Liquid Pressure psig 75 80 85 200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600 135 Remove refrigerant if above curve Add refrigerant if below curve T4QE 048KA CHARGING CHART COOLING Figure 7 Charging Chart ...

Страница 11: ...tureisabove50 F thenamoreaccuratewayto inspect the system for proper charge is with the cooling modechargingcharts Switchtheunitintocoolingmode and allow it to operate and stabilize for a few minutes then inspect the unit operation with the cooling mode charts and procedures Before changing the unit charge always inspect the following items first 1 Inspecttheliquidlinetemperatureontheinletandoutle...

Страница 12: ...288 141 112 301 312 153 128 325 336 164 36 216 227 108 51 235 245 115 66 253 263 123 81 271 282 130 96 284 295 139 113 308 319 148 129 332 343 158 37 223 234 106 52 240 251 113 67 258 268 121 82 275 285 128 97 291 302 136 114 315 326 144 130 339 350 152 38 230 241 104 53 246 257 111 68 262 273 119 83 278 289 126 98 298 309 133 115 322 333 139 131 346 357 146 39 237 248 102 54 252 263 109 69 267 27...

Страница 13: ...3 311 120 98 340 347 125 114 372 379 129 129 405 412 134 Table 9 Verification Table for 3 5 Ton Models Table 10 Verification Table for 4 Ton Models OUTDOOR TEMPERATURE DEG F 0 10 20 30 40 50 60 Suc Press Liquid Press Disch Press Disch Temp Suc Press Liquid Press Disch Press Disch Temp Suc Press Liquid Press Disch Press Disch Temp Suc Press Liquid Press Disch Press Disch Temp Suc Press Liquid Press...

Страница 14: ... Not suitable on systems that exceed 150 volts to ground 4 For replacement wires use conductors suitable for 105 C 5 For ampacities and overcurrent protection see unit rating plate 6 Connect to 24 vac 40va class 2 circuit See furnace air handler installation instructions for control circuit and optional relay transformer kits 1 Couper le courant avant de faire letretien 2 Employez uniquement des c...

Страница 15: ...15 ...

Страница 16: ...lle Cabinet Panels Filter Driers Expansion Valves REFRIGERATION SYSTEM Was unit given 24 hr warm up period for crankcase heaters YES NO Stage 1 Liquid Pressure high side Stage 1 Suction Pressure low side INSTALLATION ADDRESS CITY STATE UNIT MODEL UNIT SERIAL UnitInstalledMinimumclearancesper Figure 1 page 3 YES NO INSTALLER NAME CITY________________________ STATE_________________ Has the owner s i...

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