Carrierメーカー48TJD008-014の使用説明書/サービス説明書
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Installation, Start-Up and Service Instructions CONTENTS Page SAFETY CONSIDERA TIONS ...................1 INST ALLA TION ............................. 1-22 Step 1 — Provide Unit Support ...............1 • ROOF CURB • SLAB MOUNT Step 2 — Field Fabricate Ductwork .
SLAB MOUNT (Horizontal Units Only) — Provide a level concrete slab that extends a minimum of 6 in. beyond unit cabinet. Install a gravel apron in front of condenser coil air inlet to prevent grass and foliage from obstructing airflow . NOTE: Horizontal units may be installed on a roof curb if required.
UNIT SIZE ‘‘ A’’ ROOF CURB 48TJ ACCESSOR Y 008-014 1 8 -2 9 [356] CRRFCURB003A00 2 8 -0 9 [610] CRRFCURB004A00 UNIT SIZE 48TJ ‘ ‘B’ ’ ‘ ‘C’ ’ ‘ ‘D’ ’ AL T DRAIN HOLE .
Locate mechanical draft system flue assembly at least 48 in. from any opening through which combustion prod- ucts could enter the building, and at least 48 in. from an ad- jacent building or combustible material. When unit is located adjacent to public walkways, flue assembly must be at least 7 ft above grade.
T able 1 — Physical Data UNIT SIZE 48TJ 008D/E/F 009D/E/F 012D/E/F 014D/E NOMINAL CAP ACITY (tons) 7 1 ⁄ 2 8 1 ⁄ 2 10 12 1 ⁄ 2 OPERA TING WEIGHT (lb) Unit Al/Al* 870 880 1035 1050 Al/Cu* 881 8.
T able 1 — Physical Data (cont) UNIT SIZE 48TJ 008D/E/F 009D/E/F 012D/E/F 014D/E FURNACE SECTION Rollout Switch Cutout T emp (F) 195 195 195 195 Burner Orifice Diameter (in. ...drill size) Natural Gas Std .120...31 .120...31 .120...31/.120...31/.129.
UNIT 48TJ ST ANDARD UNIT WEIGHT CORNER WEIGHT (A) CORNER WEIGHT (B) CORNER WEIGHT (C) CORNER WEIGHT (D) ‘‘H’ ’ ‘ ‘J’’ ‘‘K’ ’ ‘‘L ’’ Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg ft-in.
Step 5 — Install Flue Hood — Flue hood is shipped screwed to the burner compartment access panel. Remove from shipping location and, using screws provided, install flue hood and screen in location shown in Fig. 8. Step 6 — Install Gas Piping — Unit is equipped for use with type of gas shown on nameplate.
Route thermostat cable or equivalent single leads of col- ored wire from subbase terminals to low-voltage connec- tions on unit (shown in Fig. 1 1) as described in Step s1-4 below . 1. If unit is mounted on roof curb and accessory thru-the- curb service plate connection is used, route wire through connection plate.
Fig. 10 — Power Wiring Connections LEGEND C— Contactor COMPS — Compressors IFC — Indoor (Evaporator) Fan Contactor NEC — National Electrical Code TB — T erminal Block T erminal Block Conne.
Step 8 — Adjust Factory-Installed Options APOLLO CONTROL — The optional Apollo control is used to actively monitor all modes of operation as well as indoor (evaporator) fan status, filter status, and indoor-air quality . The Apollo control is designed to work with Carrier TEMP and VVT t systems.
9. Remove and save screws currently on sides of hood. Insert screens. Secure screens to hood using the screws. See Fig. 16. 10. Replace filter access panel.
Fig. 19 — Outdoor-Air Hood Details Fig. 20 — V ertical Discharge Block-Off Plate (Sizes 120,150 only) ECONOMIZER CONTROL BOARD ECONOMIZER PLUG ECONOMIZER M OTOR TO P SCREW Fig. 21 — Durablade Economizer Installed in Unit ECONOMIZER CONTROL BOARD ECONOMIZER MO TOR POSITION SETTING BRACKET Fig.
Example: Given — Negative Pressure ....................... 0 . 1 i n . w g Outdoor Airflow ........................ 1 1 0 0 c f m Determine — Setting = 6 9 Fig.
OPTIONAL P ARABLADE ECONOMIZER — The op- tional P ARABLADE economizer hood assembly is pack- aged and shipped in the filter section. Damper blades and control boards are installed at the factory and the econo- mizer is shipped in the vertical discharge position.
Step 9 — Adjust Evaporator-Fan Speed — Ad- just evaporator-fan speed to meet jobsite conditions. T able 3 shows fan rpm at motor pulley settings, T able 4 shows motor ef f iciencies and T able 5 gives accessory static pressure drops. T able 6 shows motor performance.
T able 3 — Fan Rpm at Motor Pulley Settings* UNIT 48TJ MOTOR PULLEY TURNS OPEN 0 1 ⁄ 2 11 1 ⁄ 2 22 1 ⁄ 2 33 1 ⁄ 2 44 1 ⁄ 2 55 1 ⁄ 2 6 008† 840 815 790 765 740 715 690 665 640 615 590 .
T able 4 — Evaporator-Fan Motor Eff iciency MOTOR EFFICIENCY (%) 48TJD/TJE/TJF008,009 80 48TJD/TJE/TJF012 (Std) 80 48TJD/TJE/TJF012 (Alt) 83 48TJD/TJE014 (Std) 85 48TJD/TJE014 (Alt) 87 NOTE: Convert watts to bhp using the following formula: watts input x motor eff iciency bhp = 746 T able 5 — Economizer Static Pressure Drop (in.
T able 7 — Fan Performance, 48TJ008 — V ertical Discharge Units AIRFLOW (Cfm) EXTERNAL ST A TIC PRESSURE (in. wg) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 2200 506 0.52 586 0.72 656 0.95 718 1.
T able 9 — Fan Performance, 48TJ012 — V ertical Discharge Units AIRFLOW (Cfm) EXTERNAL ST A TIC PRESSURE (in. wg) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 3000 592 0.76 661 0.
T able 1 1 — Fan Performance, 48TJ008 — Horizontal Discharge Units AIRFLOW (Cfm) EXTERNAL ST A TIC PRESSURE (in. wg) 0.2 0.4 0.6 0.8 0.9 1.0 1.2 1.4 1.6 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 2200 499 0.50 580 0.70 652 0.
T able 13 — Fan Performance, 48TJ012 — Horizontal Discharge Units AIRFLOW (Cfm) EXTERNAL ST A TIC PRESSURE (in. wg) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 3000 552 0.
ST ART -UP Unit Preparation — Make sure that unit has been in- stalled in accordance with these installation instructions and applicable codes. Make sure that Start-Up Checklist has been completed and filled out. Return-Air Filters — Make sure correct filters are in- stalled in filter tracks (see T able 1).
T able 15 — Altitude Compensation* ELEV A TION (Ft) 125,000, 180,000, AND 224,000 BTUH NOMINAL INPUT 250,000 BTUH NOMINAL INPUT Natural Gas Orifice Size† Liquid Propane Orifice Size† Natural G.
SERVICE When servicing unit, shut of f all electrical power to unit to avoid shock hazard or injury from rotating parts. Cleaning — Inspect unit interior at the beginning of each heating and cooling season and as operating conditions require. EV APORA TOR COIL — Clean coil as required.
Condenser-Fan Adjustment (Fig. 40) 1. Shut of f unit power supply . 2. Remove condenser -fan assembly (grille, motor , motor cover, and fan) and loosen fan hub setscrews. 3. Adjust fan height as shown in Fig. 40. 4. T ighten setscrews and replace condenser-fan assembly .
Fig. 42 — Cooling Charging Chart; 48TJ009 Fig. 43 — Cooling Charging Chart; 48TJ012 27.
Flue Gas Passageways — T o inspect the flue col- lector box and upper areas of the heat exchanger: 1. Remove the combustion blower wheel and motor assem- bly according to directions in Combustion-Air Blower sec- tion below . 2. Remove the flue cover to inspect the heat exchanger .
REMOV AL AND REPLACEMENT OF GAS TRAIN (Fig. 45 and 46) 1. Shut of f manual gas valve. 2. Shut of f power to unit. 3. Slide out burner section side panel (not shown). 4. Disconnect gas piping at unit gas valve. 5. Remove wires connected to gas valve. Mark each wire.
NOTE: Dimensions in ( ) are millimeters. Fig. 47 — Spark Gap Adjustment 125,000 BTUH INPUT 48TJD008,009 120,000-180,000 BTUH INPUT 48TJD012, 48TJE008,009 48TJD014; 48TJE012 48TJF008,009 48TJE014; 48.
TROUBLESHOOTING T able 17 — LED Error Code Service Analysis PROBLEM CAUSE REMEDY Hardware failure. (LED OFF) Loss of power to control module (IGC). Check 5-amp fuse on IGC, power to unit, 24-v circuit breaker , and transformer . Units without a 24-v circuit breaker have an internal overload in the 24-v trans- former .
T able 18 — Durablade Economizer T roubleshooting PROBLEM CAUSE REMEDY Damper does not open. Indoor (evaporator) fan is off. 1. Check to ensure that 24 vac is present at terminal C1 on the IFC or that 24 vac is present at the IFO terminal. Check whether 24 vac is present at PL6-1 (red wire) and/or PL6-3 (black wire).
T able 19 — P ARABLADE Economizer Service T roubleshooting PROBLEM CAUSE REMEDY Damper does not open. Evaporator fan not on. Check wiring between G on connection board and indoor (evaporator) fan contactor . No power to economizer motor . 1. Disconnect power at TR and TR1.
T able 20 — Cooling Service T roubleshooting PROBLEM CAUSE REMEDY Compressor and condenser fan will not start. Power failure. Call power company . Fuse blown or circuit breaker tripped. Replace fuse or reset circuit breaker . Defective thermostat, contactor , transformer , or control relay .
T able 21 — Heating Service T roubleshooting PROBLEM CAUSE REMEDY Burners will not ignite. Misaligned spark electrodes. Check flame ignition and sensor electrode positioning. Adjust as needed. No gas at main burners. Check gas line for air purge as necessary .
Fig. 48 — T ypical Wiring Schematic and Component Arrangement 36.
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Copyright 1996 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 4 Ta b 1 a 6 a PC 1 1 1 Catalog No. 564-934 Printed in U.S.A.
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ST ART -UP CHECKLIST (Remove and Store in Job File) I. PRELIMINAR Y INFORMA TION MODEL NO.: DA TE: SERIAL NO.: TECHNICIAN: II. PRE-ST ART -UP (insert checkmark in box as each item is completed) M VERI.
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