Carrier 50LJ008-014- Manuals

Page 2 - Ductwork must be attached to curb, not; Step 1 — Provide Unit Support; Step 2 — Field Fabricate Ductwork; Do not connect ductwork to unit.; Step 3 — Install External Trap for Condensate; A CAUTION; Step 5 — Make Electrical Connections; A WARNING; must

ROOF CURB — Assemble and install accessory roof curb in accordance with instructions shipped with curb. See Fig. 2. Install insulation, cant strips, roofing and counter flashing as shown. Ductwork must be attached to curb, not to unit. If electric or control power is to be routed through the curb, a...

Page 3 - SERVICE PLATE SIZES

SERVICE PLATE SIZES UNIT SIZE “F” POWER “G” CONTROL CONNECTOR PKG. ACY. 50LJ008, 009, 012 & 014 1" [25] NPT or 2" [51] NPT %" [19] NPT 50DJ901311 ROOF CURB ACCESSORY “A” UNIT SIZE 50DJ901371 1'-2" [356] 50LJ008, 009, 50DJ901381 2'-0" [610] 012 & 014 - - - - 1 - - V-------...

Page 4 - MAXIMUM ALLOWABLE; Fig. 3 — Unit Leveling Tolerance; Fig. 4 — External Trap Condensate Drain; Fig. 5 — Rigging Details

MAXIMUM ALLOWABLE DIFFERENCE (in.) A -B B -C A -C 0.5 1 0 1 0 Fig. 3 — Unit Leveling Tolerance NOTE: Trap should be deep enough to offset maximum unit static difference. A 4-in trap is recommended. Fig. 4 — External Trap Condensate Drain NOTES- 1 Dimensions in ( ) are in miiiimeters 2. Hook rigging ...

Page 5 - Table 1 — Physical Data; LEGEND

Table 1 — Physical Data B A S E U N IT 50L J 008 009 012 014 N O M IN A L C A P A C ITY (ton s) 71/2 8V2 10 I 2 V 2 O P E R A TIN G W E IG H T (lb) U n it 755 760 915 930 W ith E co no m izer 799 804 959 974 R o of C urb 143 143 143 143 C O M P R E S S O R Hermetic Q uan tity 2 2 2 2 O il (o z) (eac...

Page 6 - ÍB©©

UNIT STD. UNIT WEIGHT ECONOMIZER WEIGHT CORNER WEIGHT (A) CORNER WEIGHT (B) CORNER WEIGHT (C) CORNER WEIGHT (D) “H” “J “K” Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Ft-ln. mm Ft-ln. mm Ft-in. mm 50LJ008 755 342 44 20 164 74 140 64 208 94 243 110 2-0% 632 3-5¥i6 1050 2-9"/ie 856 50LJ009 760 345 44 20 1...

Page 7 - ft; Fig. 7 — Power Wiring Connections

Install conduit through side panel openings. Install con duit between disconnect and control box. Install power lines to terminal connections as shown in Fig. 7. Voltage to compressor terminals during operation must be within voltage range indicated on unit nameplate (see Table 2). On 3-phase units...

Page 8 - Table 2 — Electrical Data

Table 2 — Electrical Data UNIT SOLJ NOMINAL VOLTAGE (60 Hz) VOLTAGE RANGE COMPR (each) OFM IFM ELECTRIC HEAT* POWER SUPPLY DISCONNECT SIZEt Min Max RLA LRA FLA FLA Nominal kW** FLA MCA MOCPtt FLA LRA 008 (7% Tons) 208/230 (3-phase) 187 254 13.7 82 3.0 5 8 7.8/10 4 12 0/16 0 18 6/24 8 24.0/32 0 31.8/...

Page 9 - Table 3 — Heat Anticipator Settings; Fig. 8 — Control Wiring Connections

Table 3 — Heat Anticipator Settings UNIT VOLTAGE 208/230 460 575 UNIT Configuration Configuration Configuration Heater kW 1 Stage 2 Stage Heater kW 1 Stage 2 Stage Heater kW 1 Stage 2 Stage Stage 1 Stage 1 Stage 2 Stage 1 Stage 1 Stage 2 Stage 1 Stage 1 Stage 2 104, 160 03 NA NA 139, 165 03 NA NA 18...

Page 10 - Table 4 — Fan Rpm at Motor Pulley Settings; Table 5 — Evaporator-Fan Motor Efficiency

Table 4 — Fan Rpm at Motor Pulley Settings M O TO R P U L LE Y T U R N S O P E N 0 V2 1 IV 2 2 2V2 3 3V2 4 4V2 5 008, 009 840 815 790 765 740 715 690 665 640 615 590 012 935 910 890 865 840 815 790 765 740 715 690 014 1080 1060 1035 1015 990 970 950 930 905 885 860 f Table 5 — Evaporator-Fan Motor E...

Page 11 - Table 7 — Fan Performance, 50LJ008,009 — Vertical Discharge Units; Table 8 — Fan Performance, 50LJ012 - Vertical Discharge Units; iysei

Table 7 — Fan Performance, 50LJ008,009 — Vertical Discharge Units B h p LEGEND — Brake Horsepower NOTES: 1 . B o ldface indicates field-supplied drive required 2 indicates field-suppiied motor and drive required. 3 Maximum usabie bhp is 2.4. Extensive motor and electrical test ing on the Weathermak...

Page 12 - Table 9 — Fan Performance, 50LJ014 — Vertical Discharge Units; mm; Wm; IS

Table 9 — Fan Performance, 50LJ014 — Vertical Discharge Units E X TE R N A L S TA T IC P R E S S U R E (in . w g) A IR F LO W (C fm ) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 R p m B h p R p m B h p R p m B h p R p m ^ B hp R p m B h p R p m B h p R p m B h p R p m B h p R p m B h p R p m B h p 3700 ...

Page 13 - Table 10 — Fan Performance, 50LJ008,009 — Horizontal Discharge Units; ììskì; ass; Bhp; Boldface

Table 10 — Fan Performance, 50LJ008,009 — Horizontal Discharge Units EXTERNAL STATIC PRESSURE (in. wg) A IR F LO W (C fm ) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 R p m B h p R p m B h p R p m B h p R p m B h p R p m B h p R p m B h p R p m B h p R p m B h p R p m B h p R p m B h p 2200 459 0.42 549...

Page 14 - Table n — Fan Performance, 50LJ012 — Horizontal Discharge Units; Table 12 — Fan Performance, 50LJ014 - Horizontal Discharge Units; lisa

Table n — Fan Performance, 50LJ012 — Horizontal Discharge Units E X TE R N A L S TA T IC P R E S S U R E (in . w g) A IR F LO W (C fm ) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 R p m B h p R p m B h p R p m B h p R p m B h p R p m B h p R p m B h p R p m B h p R p m B h p R p m B h p R p m B h p 3000...

Page 16 - Clssning; Inspect unit interior at the beginning of each; Fig. 12 — Cleaning Condenser Coil

Operating Sequence SERVICE COOLING, UNITS WITHOUT ECONOMIZER - When thermostat calls for cooling, terminals G and Y1 are energized. The indoor (evaporator) fan contactor (IFC), and compressor contactor no. 1 (Cl) are energized and evaporator- fan motor, compressor no. 1 and condenser fan start. Th...

Page 17 - Lubrication; Fan-motor bearings are of; Refrigerant Charge

COIL CORNER CENTER BAFFLE TOP PANEL 6. Reposition the outer coil section and remove the coil corner post between the top panel and center post. Secure the sections together. Install the coil comer post and coil center post, and replace all screws. CONDENSATE DRAIN — Check and clean each year at sta...