Manuale d’uso / di manutenzione del prodotto 48HJ015-025 del fabbricante Carrier
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Installation Instructions CONTENTS Page SAFETY CONSIDERA TIONS ...................1 INST ALLA TION ............................. 1-12 Step 1 — Provide Unit Support ...............1 • ROOF CURB • AL TERNA TE UNIT SUPPOR T Step 2 — Rig and Place Unit .
ACCESSOR Y P ACKAGE NO. CURB HEIGHT DESCRIPTION ‘ ‘A ’’ ‘ ‘B’ ’ ‘ ‘C’’ 50PQ900221 1 8 -2 9 (305) Standard Curb — 14 9 High —— — 50PQ900141 2 8 -0 9 (610) Standard Curb .
AL TERNA TE UNIT SUPPOR T — When the curb cannot be used, install unit on a noncombustible surface. Support unit with sleepers, using unit curb support area. If sleepers cannot be used, support long sides of unit with a minimum of 3 equally spaced 4-in.
T able 1 — Physical Data UNIT SIZE 48 HJD015/HJE015 HJE017 HJD025 208/230, 460 V 575 V OPERA TING WT (lb) Al/Al* 1640/1660 2010 2235 Unit Al/Cu* 1770/1790 2160 2385 Cu/Cu* 1840/1860 2250 2515 Economizer 11 0 11 0 11 0 Roof Curb† 200 200 200 COMPRESSOR 06D Semi-Hermetic Number 12 2 Cylinders 64 6 REFRIGERANT TYPE R-22 Charge (lb) System 1 22.
UNIT 48HJ MAXIMUM SHIPPING WEIGHT Lb Kg D015 1920 871 E015 1940 880 E017 2310 1048 UNIT 48HJ DIMENSIONS XY Ft-in. mm Ft-in. mm D015 3-2 965 4-0 1219 E015 3-2 965 4-0 1219 E017 3-7 3 ⁄ 8 1 102 3-6 5 .
MAXIMUM SHIPPING WEIGHT Lb Kg 2535 1 150 NOTES: 1. Dimensions in ( ) are in millimeters. 2. Center of gravity . 3. Direction of airflow . 4. Ductwork to be attached to accessory roof curb only . 5. Minimum clearance: a. Rear: 7 8 0 9 (2134) for coil removal.
Step 3 — Field Fabricate Ductwork — Secure all ducts to building structure. Use flexible duct connectors be- tween unit and ducts as required. Insulate and weatherproof all external ductwork, joints, and roof openings with counter flashing and mastic in accordance with applicable codes.
S t e p6—T r a p Condensate Drain — See Fig. 1 1 for drain location. One 3 ⁄ 4 -in. half coupling is provided inside unit evaporator section for condensate drain connec- tion. An 8 1 ⁄ 2 in. x 3 ⁄ 4 -in. diameter and 2-in. x 3 ⁄ 4 -in. diameter pipe nipple, coupled to standard 3 ⁄ 4 -in.
Step 8 — Make Electrical Connections FIELD POWER SUPPL Y — Unit is factory wired for volt- age shown on unit nameplate. When installing units, provide a disconnect per NEC (National Electrical Code) of adequate size (T able 2). All field wiring must comply with NEC and local requirements.
Use the following formula to determine the percent volt- age imbalance. % V oltage Imbalance: = 100 x max voltage deviation from average voltage average voltage EXAMPLE: Supply voltage is 460-3-60.
5. Loosen sheet metal screws for top cover of base unit located above outdoor-air inlet opening. 6. Match notches in hood top cover with unit top cover screws.
ST ART -UP Use the following information and Start-Up Checklist on page CL-1 to check out unit PRIOR to start-up. Unit Preparation — Check that unit has been installed in accordance with these installation instructions and appli- cable codes.
T able 3A — Fan Performance Data, 48HJ015, 208/230, 460-V Units AIRFLOW (CFM) EXTERNAL ST A TIC PRESSURE (in. wg) 0.2 0.4 0.6 0.8 1.0 Rpm W atts Bhp Rpm Watts Bhp Rpm W atts Bhp Rpm W atts Bhp Rpm Watts Bhp 3750 741 510 0.58 854 715 0.82 952 921 1.05 1041 1 130 1.
T able 3B — Fan Performance Data, 48HJ015, 575-V Units AIRFLOW (CFM) EXTERNAL ST A TIC PRESSURE (in. wg) 0.2 0.4 0.6 0.8 1.0 Rpm W atts Bhp Rpm Watts Bhp Rpm W atts Bhp Rpm W atts Bhp Rpm Watts Bhp 3750 741 510 0.58 854 715 0.82 952 921 1.05 1041 1030 1.
T able 4 — Fan Performance Data, 48HJ017 Units AIRFLOW (CFM) EXTERNAL ST A TIC PRESSURE (in. wg) 0.2 0.4 0.6 0.8 1.0 Rpm W atts Bhp Rpm Watts Bhp Rpm W atts Bhp Rpm W atts Bhp Rpm Watts Bhp 4500 630 805 0.9 741 1059 1.2 846 1341 1.5 945 1653 1.9 1039 1993 2.
T able 5 — Fan Performance Data, 48HJ025 Units AIRFLOW (CFM) EXTERNAL ST A TIC PRESSURE (in. wg) 0.2 0.4 0.6 0.8 1.0 Rpm W atts Bhp Rpm Watts Bhp Rpm W atts Bhp Rpm W atts Bhp Rpm Watts Bhp 6000 800 1732 1.88 891 2047 2.22 975 2376 2.58 1055 2728 2.
T able 7 — Accessory/FIOP Economizer Static Pressure (in. wg) UNIT 480HJ UNIT VOL T AGE CFM ECONOMIZER PRESSURE DROP 015, 017 All 3,750 .03 4,000 .03 5,000 .05 6,000 .07 7,500 .10 025 All 6,000 .07 7,200 .09 9,000 .1 1 10,000 .12 LEGEND BHP — Brake Horsepower FIOP — Factory-Installed Option NOTES: 1.
SERVICE Before performing service or maintenance operations on unit, turn of f main power switch to unit. Electrical shock could cause personal injury. Cleaning — Inspect unit interior at beginning of each heat- ing and cooling season and as operating conditions require.
F AN SHAFT BEARINGS — For 015 units, the bearings are permanently lubricated. No field lubrication is required. For 017 and 025 units, the bearings are of the pillow block type and have grease fittings. The bearing opposite the motor end has an extended tube line so it can be lubricated from the motor side.
SER VICE AND REPLACEMENT (See Fig. 30) — The 48HJ017,025 units use a fan motor mounting system that features a slide-out motor mounting plate. T o replace or serv- ice the motor , slide out the bracket. 1. Remove the evaporator-fan access panel and the heat- ing control access panel.
5. Set the outdoor -air thermostat (OA T), located in the econo- mizer section of the unit to 75 F . 6. If the outdoor temperature is below 75 F , the econo- mizer will control the mixed air with the mixed-air sen- sor . If the outdoor air is above 75 F , place a jumper around the contacts of the OA T .
Pilot Adjustment 1. Set system selector switch at OFF position to shut of f unit. T urn of f power to unit. 2. Remove screw cap cover on pilot gas valve to expose adjusting screw (See Fig. 36). 3. T urn valve knobs to pilot position. 4. T urn on power to unit.
Main Burners — For most applications, main burners are factory set and should require no adjustment. However , if burner adjustment is necessary: 1. Perform pilot adjustment. 2. T urn gas valve to ON position. Allow unit to operate at least 15 minutes with burner access panel in place.
Fig. 38 — T ypical Wiring Schematic (48HJ025 Shown) 24.
Fig. 38 — T ypical Wiring Schematic (48HJ025 Shown) (cont) 25.
Fig. 39 — T ypical Component Arrangement (48HJ025 Shown) 26.
LEGEND FOR FIG. 38 and 39 AHA — Adjustable Heat Anticipator BKR W/A T — Breaks with Amp T urns C— Contactor , Compressor CB — Circuit Breaker CC — Cooling Compensator CH — Crankcase Heater.
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P ACKAGED SERVICE TRAINING Our packaged service training programs provide an excellent way to increase your knowledge of the equipment discussed in this manual. Product programs cover: • Unit Familiarization • Installation Overview • Maintenance • Operating Sequence A large selection of product, theory , and skills programs is available.
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ST ART -UP CHECKLIST MODEL NO.: DA TE: SERIAL NO.: TECHNICIAN: PRE-ST ART -UP: M VERIFY THA T ALL P ACKING MA TERIALS HA VE BEEN REMOVED FROM UNIT M REMOVE ALL SHIPPING HOLDDOWN BOL TS AND BRACKETS PE.
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 48HJ015-025 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 48HJ015-025 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Carrier 48HJ015-025 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Carrier 48HJ015-025 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Carrier 48HJ015-025, 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 48HJ015-025.
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 48HJ015-025. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Carrier 48HJ015-025 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.
