Carrier 48HJ004---007 - Manuals

5 C06111 Fig. 6 --- Rigging Details UNIT 48HE OPERATING WEIGHT DIMENSIONS “A” “B” “C” lb kg in. mm in. mm in. mm 003 530 240 73.69 1872 35.50 902 33.31 847 004 540 245 73.69 1872 35.50 902 33.31 847 005 560 254 73.69 1872 35.50 902 33.31 847 006 635 288 73.69 1872 35.50 902 33.31 847 UNIT 48HJ OPERA...

8 C06114 Fig. 10 --- Flue Hood Details LEGEND *Field supplied.NOTE: Follow all local codes. SPACING OF SUPPORTS NFGC — National Fuel Gas Code STEEL PIPE NOMINAL DIAMETER (in.) SPACING OF SUPPORTS X DIMENSION (ft) 1 / 2 3 / 4 or 1 1 1 / 4 or larger 6 8 10 C06115 Fig. 11 --- Gas Piping Guide (With Acc...

9 Table 1—Physical Data 48HJ BASE UNIT 48HJ HJE/F/H/K/M/N004 HJD/E/F/G/H/K/L/M/N005 HJD/E/F/G/H/K/L/M/N006 HJD/E/F007 NOMINAL CAPACITY 3 4 5 6 OPERATING WEIGHT (lb) Unit 530 540 560 635 Humidi-MiZer ™ Adaptive Dehumidification System 15 23 25 29 EconoMi$er IV 50 50 50 50 Roof Curb 115 115 115 115 CO...

11 Table 2—PHYSICAL DATA 48HE BASE UNIT 48HE HD/E/F003 HE/F/H/K/M/N004 H/E/F/G/H/K/L/M/N005 HD/E/F/G/H/K/L/M/N006 NOMINAL CAPACITY 2 3 4 5 OPERATING WEIGHT (lb) Unit 530 540 560 635 Humidi-MiZer ™ Adaptive Dehumidification System 13 15 23 25 EconoMi$er IV 50 50 50 50 Roof Curb 115 115 115 115 COMPRE...

13 LEGEND C — Contactor COMP — Compressor EQUIP — Equipment GND — Ground IFC — Indoor (Evaporator) Fan Contactor NEC — National Electrical Code TB — Terminal Block 48HE003-006 48HE004,005 48HE004,005 48HE006 C06124 Fig. 12 --- Power Wiring Connections WIRE CONNECTIONS TO LOW-VOLTAGE SECTION COOL STA...

18 CB — Circuit Breaker CR — Cooling Relay DHR — Dehumidify Relay DSV — Discharge Solenoid Valve HR — Heater Relay LPS — Low Pressure Switch LSV — Liquid Solenoid Valve LTLO — Low Temperature LockoutField Splice Terminal (Unmarked)SpliceFactory WiringField Control WiringField Power Wiring LEGEND C06...

20 Table 5—PremierLink ™ Sensor Usage APPLICATION OUTDOOR AIR TEMPERATURE SENSOR RETURN AIR TEMPERATURE SENSOR OUTDOOR AIR ENTHALPY SENSOR RETURN AIR ENTHALPY SENSOR Differential Dry Bulb Temperature with PremierLink* (PremierLink requires 4-20 mA Actuator) Included --- CRTEMPSN001A00 Required --- 3...

21 PREMIERLINK CONTROL HINGED DOOR PANEL C06017 Fig. 25 --- PremierLink t Controller (Installed) TB - 1 R Y1 Y2 W1 W2 G C X 1 2 3 4 5 6 7 8 TB - 3 1 2 3 4 5 6 7 8 TB - 2 1 2 3 4 5 6 7 8 J6 ANAL O G J5 0-2 0mA IN J4 DISCRE TE J1 PWR J2 COMMS J9 0-20 mA J8 Relays HK50AA039 BRN BRN WHT WHT RED PNK PNK ...

23 NOTE : These instructions are for installing the optional EconoMi$er IV and EconoMi$er2 only. Refer to the accessoryEconoMi$er IV or EconoMi$er2 installation instructions whenfield installing an EconoMi$er IV or EconoMi$er2 accessory. 1. To remove the existing unit filter access panel, raise the ...

25 FOR OCCUPANCY CONTROL REPLACE JUMPER WITH FIELD-SUPPLIED TIME CLOCK LEGEND DCV— Demand Controlled Ventilation IAQ — Indoor Air Quality LA — Low Ambient Lockout Device OAT — Outdoor-Air Temperature POT — Potentiometer RAT — Return-Air Temperature Potentiometer Defaults Settings: Power Exhaust Midd...

27 activation to allow the dampers to open. This delay allows thedamper to reach the appropriate position to avoid unnecessary fan overload. Minimum Position Control There is a minimum damper position potentiometer on theEconoMi$er IV controller. (See Fig. 42.) The minimum damper position maintains ...

28 CONTROL CURVE ABCD CONTROL POINT APPROX. deg. F (deg. C) AT 50% RH 73 (23)70 (21)67 (19)63 (17) 12 1 4 1 6 18 20 2 2 24 26 28 30 32 3 4 36 38 40 42 44 46 9 0 1 0 0 80 70 6 0 50 40 30 20 10 ENTHALPY BTU PER POUND DRY AIR 85 (29) 90 (32) 95 (35) 100 (38) 105 (41) 110 (43) 35 (2) 35 (2) 40 (4) 40 (4...

30 Table 8—CO 2 Sensor Standard Settings SETTING EQUIPMENT OUTPUT VENTILATION RATE (cfm/Person) ANALOG OUTPUT CO 2 CONTROL RANGE (ppm) OPTIONAL RELAY SETPOINT (ppm) RELAY HYSTERESIS (ppm) 1 Interface w/Standard Building Control System Proportional Any 0-10V 4-20 mA 0-2000 1000 50 2 Proportional Any ...

31 Table 9—48HJ and 48he Fan Rpm at Motor Pulley Setting With Standard Motor* UNIT 48HJ 48HE MOTOR PULLEY TURNS OPEN 0 1 / 2 1 1 1 / 2 2 2 1 / 2 3 3 1 / 2 4 4 1 / 2 5 5 1 / 2 6 003 936 906 876 846 816 786 756 726 696 666 639 — — 004 1044 1008 971 935 898 862 826 789 753 716 680 — — 005 1185 1144 110...

32 Table 14—48HJ Outdoor Sound Power (Total Unit) UNIT 48HJ ARI RATING (decibels) OCTAVE BANDS 63 125 250 500 1000 2000 4000 8000 004,005 76 55.9 66.0 64.0 66.2 68.4 64.5 61.7 57.3 006,007 80 59.1 68.9 68.7 71.9 74.0 68.9 65.7 59.0 LEGEND ARI --- Air Conditioning and Refrigeration Institute Table 15...

48 S If SAT > SASP + 5 and economizer position >80%,economizer will go to minimum position for 3 minutesor until SAT > 68 _ F. S If compressor one is on then second stage ofmechanical cooling will be energized; otherwise thefirst stage will be energized. S Integrator resets. S Economizer op...

50 C06136 Fig. 54 --- Humidi--MiZer Subcooling Mode Operation C06137 Fig. 55 --- Humidi--Mizer t Hot Gas Reheat Mode Operation Hot Gas Reheat Mode When the humidity levels in the space require humidity control, ahot gas solenoid valve (specific to hot gas reheat mode only) will open to bypass a port...

51 Table 39—Humidi-Mizer Adaptive Dehumidification System Sequence of Operation and System Response — Single Compressor Unit (48HE003--006, 48HJ004-007) THERMOSTAT INPUT ECONOMIZER FUNCTION 48HE, HJ UNIT OPERATION H Y1 Y2 OAT. < Economizer Set Point Economizer Comp. 1 Subcooling Mode Hot Gas Rehe...

52 Step 7 — Loss--of--Charge Switch The loss-of-charge switch contains a Schrader core depressor, and is located on the compressor liquid line. This switch opens at 7psig and closes at 22 psig. No adjustments are necessary. Step 8 — Freeze--Stat The freeze-stat is a bimetal temperature-sensing switc...

53 C06141 Fig. 62 --- Cooling Charging Chart, Standard 48HJ006 C06142 Fig. 63 --- Cooling Charging Chart, Standard 48HJ007 C06143 Fig. 64 --- Cooling Charging Chart, 48HJ004 with Optional Humidi--MiZer Adaptive Dehumidification System C06144 Fig. 65 --- Cooling Charging Chart, 48HJ005 with Optional ...

56 by removing one setscrew. Then remove nuts that holdmotor to mounting plate. 6. To reinstall, reverse the procedure outlined above. Step 12 — Limit Switch Remove blower access panel (Fig. 8). Limit switch is located on the fan deck. Step 13 — Burner Ignition Unit is equipped with a direct spark i...

57 LOW HEAT 48HJE/H004, 48HJD/G005-007 — 72,000 BTUH INPUT 48HJM004, 48HJL005,006 — 60,000 BTUH INPUT MEDIUM AND HIGH HEAT 48HJE/H005-007, 48HJF/K004 — 115,000 BTUH INPUT 48HJF/K005-007 — 150,000 BTUH INPUT 48HJM005,006; 48HJN004 — 90,000 BTUH INPUT 48HJN005,006 — 120,000 BTUH INPUT 48HEF003, 48HEE0...

59 TROUBLESHOOTING Step 1 — Unit Troubleshooting Refer to Tables 35-39 for unit troubleshooting details. Step 2 — Economi$er IV Troubleshooting See Table 40 for EconoMi$er IV logic.A functional view of the EconoMi$er IV is shown in Fig. 69. Typical settings, sensor ranges, and jumper positions are a...

60 3. Set DCV maximum position potentiometer to previous setting. 4. Set minimum position, DCV set point, and exhaust potentiometers to previous settings. 5. Remove 620-ohm resistor from terminals S R and +. 6. Remove 1.2 kilo-ohm checkout resistor from terminals S O and +. If used, reconnect sensor...

62 Table 45—Cooling Service Analysis 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. Replace component. I...

63 Table 46—EconoMi$er IV Input/Output Logic INPUTS OUTPUTS Demand Control Ventilation (DCV) Enthalpy* Y1 Y2 Compressor N Terminal† Outdoor Return Stage 1 Stage 2 Occupied Unoccupied Damper Below set (DCV LED Off) High (Free Cooling LED Off) Low On On On On Minimum position Closed On Off On Off Off ...

64 START-UP CHECKLIST (Remove and Store in Job File) I. PRELIMINARY INFORMATION MODEL NO.: SERIAL NO.: DATE: TECHNICIAN: II. PRE-START-UP (insert checkmark in box as each item is completed) j VERIFY THAT JOBSITE VOLTAGE AGREES WITH VOLTAGE LISTED ON RATING PLATE j VERIFY THAT ALL PACKAGING MATERIALS...