Manuale d’uso / di manutenzione del prodotto WEATHERMAKER 48AJ del fabbricante Carrier
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Manufacturer reserves the right to disco ntinue, or change at any time, specifications or de signs without notice and without inc urring obligations. Catalog No . 04-53480067-0 1 Printed in U. S.A. F orm 48A-7SI Pg 1 8-09 Replaces: 48A-5SI Installation Instr uctions CONTENTS Page SAFETY CONSIDERA TIONS .
2 RO OF CUR B — For vertical dischar ge units, assemble or in- stall accessory roof curb in accordance with instructions shipped with this accessory . See Fig. 1-3. Install insulation, cant strips, roofing, and counter flashing as shown. Ductwork can be installed to roof curb before unit is set in place.
3 Fig. 1 — Roof Curb — 48AJ,AK020-035 Units a48-6715 NOTES: 1. UNLESS O THER WISE SPECIFIE D , ALL DI MENSIONS ARE T O OUTSIDE OF P ART . 2. ROOF CURB ACCESSOR Y CRRFCURB0 05A00 IS SHIPPED DISASSEMBLED . 3. ALL RO OF CURB P ARTS ARE T O BE 14 GA. GA L V ANIZED STE EL.
4 Fig. 2 — Roof Curb — 48AJ,AK036 -050 Units a48-6716 NOTES: 1. UNLESS O THER WISE SPECIFIE D , ALL DI MENSIONS ARE T O OUTSIDE OF P ART . 2. ROOF CURB ACCESSOR Y CRRFCURB0 05A00 IS SHIPPE D DISASSEMBLED . 3. ALL RO OF CURB P ARTS ARE T O BE 14 GA.
5 Fig. 3 — R oof Curb — 48AJ,A K051 and 060 Unit s a48-6717 NOTES: 1. UNLESS O THERW ISE SPECIFIED , ALL DIMENSIONS ARE TO OUTSIDE OF P AR T . 2. ROOF CURB ACCESSOR Y CRRFCURB005A00 IS SHIPPED DIS- ASSEMBLED . 3. ALL RO OFCURB P ART S ARE T O BE 14 GA.
6 * OPERA TING WEIGHT INCL UDES LARGEST INDOOR F AN MOTOR, CU/AL COILS, MODULA TING POWER EXHA UST (VARIABLE AIR VOL UME), AND V ARIABLE FREQUENCY DRIVE ( V ARIABLE AIR VOLUME). Fig. 4 — Base Unit Dime nsions — 48AJ,AK020-035 a48-8235 NOTES: 1. WEIGHT S INCLUDE ECON OMIZER (STD) .
7 * OPERA TING WEIGHT INCL UDES LARGEST INDOOR F AN MOTOR, CU/AL COILS, MODULA TING POWER EXHA UST (VARIABLE AIR VOL UME), AND V ARIABLE FREQUENCY DRIVE ( V ARIABLE AIR VOLUME). Fig. 5 — Base Unit Dimensions — 48AJ, AK036-050 a48-8236 N OTE S: 1. WEIGHTS INCLUDE ECONOMIZER (STD).
8 Fig. 6 — Base Unit Di mensions — 48AJ,AK05 1 and 060.
9 Fig. 7 — Base Unit Dime nsions — 48AW,AY020 -035 A48-8380 NO TES: 1. WEIGHTS INCLUDE ECONOMIZER (S TD). 2. CENTER OF GRA VITY . 3. UNIT CLEARANCES: TOP OF UNITS: NO O VERHANG CONDENSER COIL: 4.
10 * OPERA TING WEIGHT INCLUDES LARGEST INDOOR F AN MOTOR, CU/AL C OILS, MODULA TING POWER EXHA UST ( V ARIABLE AIR VOL UME), AND V ARIABLE FREQUENCY DRIVE ( V ARIABLE AIR VOL UME). Fig. 8 — Base Unit Dimensi ons — 48AW,AY036- 050 a48-8239 NOTES: 1.
11 Fig. 9 — Base Unit Dimensions — 48AW,AY051 and 060 a48-8240 FOR CENTERS OF GRA VITY , OPERA TING AND CORNER WE IGHTS , SEE FIGURE 10.
12 48AJ/AK L OW HEA T 48AJ/AK HIGH HEA T 48AJ/AK L OW HEA T 48AJ/AK HIGH HEA T 48A W/A Y HIGH HEA T 48A W/A Y LOW HEA T 48A W/A Y LOW HEA T 48A W/A Y HIGH HEA T 48AJ/AK051 LOW HEA T 48AJ/AK051 HIGH HEA T 48A W/A Y051 LOW HEA T 48A W/A Y051 HIGH HEAT 48AJ/AK060 LOW HEA T 48A W/A Y060 LOW HEA T 48AJ/AK060 HIGH HEA T 48A W/A Y060 HIGH HEAT Fig.
13 Table 1 — Physic al Data — 48AJ,AK,AW,A Y Units LEGEND *Sizes 020-040 : Circuit 1 uses the lower por tion of con denser coil, Circuit 2 us es the upper portion. Sizes 041- 060: Circuit 1 uses the left co ndenser coil, Cir cuit 2 the right. All u nits hav e intertwined ev apor ator coils .
14 Table 1 — Physical Data — 48AJ,AK,AW,AY Units (c ont) LEGEND *Sizes 020-040 : Circuit 1 uses the lower por tion of con denser coil, Circuit 2 use s the upper portion. Sizes 041- 060: Circuit 1 uses the left co ndenser coil, Cir cuit 2 the right.
15 Table 1 — Physical Data — 48AJ,AK,AW,AY Units (cont) LEGEND *Sizes 020-040 : Circuit 1 uses the lower por tion of con denser coil, Circuit 2 us es the upper portion. Sizes 041- 060: Circuit 1 uses the left co ndenser coil, Cir cuit 2 the right.
16 50AJ/AK020 4607 2090 8 7.7 2227 70.9 1 8 01 42.0 1067 4 8 AJ/AKD020 4697 21 3 1 8 7.7 2227 71.9 1 8 26 42.5 10 8 0 4 8 AJ/AKE020 477 7 2167 8 7.7 2227 72. 8 1 8 49 41.0 1041 50AW/A Y020 46 8 5 2125 8 7.7 2227 70.9 1 8 01 42.0 1067 4 8 AW/A YD020 47 3 7 2149 8 7.
17 Table 2 — Unit Operating Weight s Table 3 — Opt ion and Accessory Weights Table 4 — Constant Volume Fan Mot or Weights LEGEND Table 5 — Vari able Volume Fan Motor Weights NO TES: 1. Base unit weight includes outdoor-air hoods. Base unit weight does NO T include indoor-fan motor .
18 Table 6 — Evaporat or Fan Motor Dat a NO TES: 1. Motor shaf t speed is 1750 rpm. The fan shaft diam eter is 1 15 / 16 inches. 2. All i ndoor f an motors meet the minim um efficiency requirements as established b y the Energ y P oli cy Act of 1992 (EP ACT), effe ctiv e October 24, 1997.
19 Step 5 — Install Flue Hood 48 AJ ,A K, A W , A Y0 20 -0 50 UN IT S — Flue hood is shipped inside gas section of unit. T o in stall, secure flue hood to access panel. See Fig. 14. 48AJ,AK,A W ,A Y05 1 AND 060 UNITS — F lu e hoo d an d wind baffle are shipped inside gas section of unit.
20 Size gas-supply piping for 0.5-in. wg maximum pressure drop. Do not use supply pipe smaller than unit gas connection. OP TIONAL ST AGED GAS UNITS — See T able 7 for staged gas information.
21 Table 8A — Electrical Data — 48AJ,AK,AW,AY Units without Convenience Outlet See Legend and No tes on page 24. UNIT SIZE 48A V O LTA G E 3 PH, 60 Hz V O LTA G E RANGE COMPRESSOR CONDENSER F AN MOT OR EV APORA T O R FA N M O T O R PO W ER EXHA UST PO WER SUPPL Y Cir A, No.
22 Table 8A — Electric al Data — 48AJ,AK, AW,AY Units without Convenience Outlet (cont) See Legend and No tes on page 24. UNIT SIZE 48A V O LTA G E 3 PH, 60 Hz VO L T AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV APORA T O R FA N M O T O R PO WER EXHA UST PO WER SUPPL Y Cir A, No.
23 Table 8A — Electric al Data — 48AJ,AK,AW,AY Unit s without Convenien ce Outlet (cont) See Legend and No tes on page 24. UNIT SIZE 48A V O LTA G E 3 PH, 60 Hz V O LTA G E RANGE COMPRESSOR CONDENSER F AN MOT OR EV APORA T O R FA N M O T O R PO W ER EXHA UST PO WER SUPPL Y Cir A, No.
24 Table 8A — Electric al Data — 48AJ,AK, AW,AY Units without Convenience Outlet (cont) L EGEND *Fuse or HACR circuit breaker per NEC. NO TES: 1. In complianc e with NEC requirement s f or multimo.
25 Table 8B — Electric al Data — 48AJ,AK,AW,AY Uni ts with Convenie nce Outlet See Legend and Notes on page 28. UNIT SIZE 48A VO L T AG E 3 PH, 60 Hz VO LT AG E RANGE COMPRESSOR CONDENSER F AN MOT OR EV APORA TOR F AN MOT OR PO WER EXHA UST CONVENIENCE OUTLET PO WER SUPPL Y Cir A, No.
26 Table 8B — Ele ctrical Data — 48AJ,AK,A W,AY Units with Convenience Outlet (cont) See Legend and Notes on page 28. UNIT SIZE 48A V O LTA G E 3 PH, 60 Hz VO L T AGE RANGE COMPRESSOR CONDENSER F AN MOT OR EV APORA TOR F AN MOT OR PO WER EXHA UST CONVENIENCE OUTLET PO WER SUPPL Y Cir A, No.
27 Table 8B — Elec trical Data — 48AJ,AK,AW ,AY Units with Convenience O utlet (cont) See Legend and Notes on page 28. UNIT SIZE 48A V O LTA G E 3 PH, 60 Hz VO L T AGE RANGE COMPRESSOR CONDENSER F AN MOT OR EV APORA TOR F AN MOT OR PO WER EXHA UST CONVENIENCE OUTLET PO WER SUPPL Y Cir A, No.
28 Table 8B — Ele ctrical Data — 48AJ,AK,A W,AY Units with Convenience Outlet (cont) LE GEND *Fuse or HACR circuit break er per NEC . NO TES: 1. In compliance with NEC req uirements f or multi mot.
29 Routing Through Bott om of Unit — If wiring is brought in through bottom of unit, use field-supplied watertight conduit to route power wiring through the 3 1 / 2 -in. diameter hole provided in the unit basepan. Install conduit connector in unit basepan as shown in Fig.
30 Staged Gas Control Option Thermistors — If the unit is equipped with the staged gas heat option, supply-air ther- mistors must be installed. Three supply-air thermistors are shipped with staged gas units and are inside the heating sec- tion.
31 T58 Communicating Thermostat — Carrier also has a fully communicating thermostat which, if used, will be wired to the CCN communication connections on TB3 as described in the Carrier Comfort Network ® Interface section below . Carrier Comfort Network In terface — The rooftop units can be connected to the CCN system.
32 Step 9 — Make Outdoor -Air Inlet Adjustments ECONOMIZER AND FIXED OUTDOOR AIR DA MP ER — Hoods are used on all units with economizer or adjustable self-closing fixed outdoor air damper .
33 Step 10 — P osition P ower Exhaust/Bar ometric Relief Damper Hood — All units are shipped with the hoods folded inside the unit in a shipping position.
34 Step 11 — Route V A V Static Pressure Sensor s V A V DUCT PRESSURE TRANSDUCER — The V A V duc t pressure transducer (V A V inverter pressure transducer) is locat- ed behind the filter access door on the lower inner panel. See Fig. 33. A section of field-supplied 1 / 4 -in.
35 building, route the high tap to atmosphere and the low tap to building air . Step 12 — Install All Accessories — After all the factory-installed options have been adjusted, install all field- installed accessories. Refer to th e accessory installation instruc- tions included with each accessory .
Manufacturer reserves the right to disco ntinue, or change at any time, specificatio ns or designs without notice and without inc urring obligations. Catalog No . 04-53480067-0 1 Printed in U. S.A. F orm 48A-7SI Pg 36 8-0 9 Replaces: 48A-5SI Copy right 2009 Carrier Cor poration 3 1.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Carrier WEATHERMAKER 48AJ è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Carrier WEATHERMAKER 48AJ - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Carrier WEATHERMAKER 48AJ imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Carrier WEATHERMAKER 48AJ ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Carrier WEATHERMAKER 48AJ, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Carrier WEATHERMAKER 48AJ.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Carrier WEATHERMAKER 48AJ. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Carrier WEATHERMAKER 48AJ insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
