Carrier 48JZ (N) 024-060- Manuals

(4.) ENH (enhanced) selection provides a 30 sec. cooling & heat pump on delay with no airflow, plus 150 seconds at 70 percent airflow and no off delay for added comfort. This will minimize cold blow in heat pump operation and could enhance system efficiency. f. CONTINUOUS FAN—SELECT DESIRED FAN ...

to a level which causes the Thermidistat™ to close its contacts.When the contacts close, the airflow will return to 100 percentof selected cooling airflow. To activate this mode wire inThermidistat™ see jumper in Fig. 10. e. DEHUMIDIFY AND SUPER DEHUMIDIFY CAPABILITIES This model unit is capable of ...

and continuous operation. (See Tables 16, 17 & 18 for airflowdelivery and minimum CFM.) Note that airflow marked is theairflow which will be supplied in emergency heat mode andheating mode on air conditioners when electric heat is theprimary heating source. In heat pump heating mode whenelectric...

This configuration provides the following comfort enhance-ments: (a.) A 30 sec blower on delay with 150 sec at 70 percent airflow to allow the indoor coil to warm up or cooldown before the blower is asked to deliver 100 percentairflow reducing the cold blow sensation at start up inheating and allowi...

value. If circuit R to G is open (0–v.) for super dehumidifymode, the motor delivers reduced airflow to maximize thehumidity removal of the system while minimizing overcooling. e. ELECTRIC HEATING MODE (1.) Thermostat closes circuit R to W/W1, or W2—The unit delivers the selected electric heat airfl...

cooling cycle remains ‘‘on’’ until the room temperature drops topoint that is slightly below the cooling control setting of the roomthermostat. At this point, the thermostat ‘‘breaks’’ the circuitbetween thermostat terminal R to terminals Y and G. These opencircuits de-energize contactor coil C and ...

f. Loosen set-screw that secures wheel to motor shaft, remove screws that secure motor mount brackets to blower housing,and slide motor and motor mount out of blower housing. 2. Remove and clean blower wheel as follows: a. Ensure proper reassembly by marking wheel orientation. b. Lift wheel from hou...

Fig. 14—ICM FIOP Electric Schematic—Unit 48GP C01035 14

Table 4—ICM FIOP Physical Data—Unit 48JZ THIS DATA APPLIES TO 48JZ UNITS WITH THE ICM INDOOR MOTOR FIOP UNIT SIZE 48JZ 024040 030040 030060 036060 036090 042060 042090 NOMINAL CAPACITY (ton) 2 2-1/2 2-1/2 3 3 3-1/2 3-1/2 OPERATING WEIGHT (lb.) 310 324 324 321 321 380 380 COMPRESSORS Quantity Scroll ...

Fig. 15—ICM FIOP Electric Schematic—Unit 48JZ C01101 17

Table 7—ICM FIOP Physical Data—Unit 50GL THIS DATA APPLIES TO 50GL UNITS WITH THE ICM INDOOR MOTOR FIOP UNIT SIZE 024 030 036 042 048 060 NOMINAL CAPACITY (ton) 2 2-1/2 3 3-1/2 4 5 OPERATING WEIGHT (lb) 270 291 299 321 326 399 COMPRESSOR Scroll REFRIGERANT (R-410A) Quantity (lb) 5.0 5.5 6.9 9.0 9.5 ...

Table 8—50GL with ICM FIOP Electrical Data UNIT SIZE 50GL V-PH-HZ VOLTAGE RANGE COMPRESSOR OUTDOOR FAN MOTOR INDOOR FAN MOTOR ELECTRIC HEAT SINGLE POINT POWER SUPPLY MIN MAX RLA LRA FLA FLA Nominal kW* FLA MCA MAX FUSE OR CKT. BKR. MOCP 024 208/230–1–60 187 253 13.5 61.0 0.9 4.3 -/- 3.8/5.05.4/7.2 7...

Fig. 16—ICM FIOP Electrical Schematic—50GL C01037 20

Table 9—ICM FIOP Physical Data—Unit 50JZ THIS DATA APPLIES TO 50JZ UNITS WITH THE ICM INDOOR MOTOR FIOP UNIT SIZE 50JZ024 50JZ030 50JZ036 50JZ042 50JZ048 50JZ060 NOMINAL CAPACITY (ton) 2 2-1/2 3 3-1/2 4 5 OPERATING WEIGHT (lb.) 299 320 328 350 355 428 COMPRESSOR QUANTITY 1 TYPE SCROLL COMPRESSOR REF...

Table 10—50JZ with ICM FIOP Electrical Data UNIT SIZE 50JZ V-PH-HZ VOLTAGE RANGE COMPRESSOR OUTDOOR FAN MOTOR INDOOR FAN MOTOR ELECTRIC HEAT SINGLE POINT POWER SUPPLY MIN MAX RLA LRA FLA FLA Nominal kW* FLA MCA MAX FUSE OR CKT. BKR. MOCP 024 208/230–1–60 187 253 13.5 61.0 0.9 4.3 -/- 3.8/5.05.4/7.2 ...

Fig. 17—ICM FIOP Electrical Schematic—50JZ c01036 23

Table 11–48GP & 48JZ Cooling (and Heat Pump Heating-48JZ only) Dry Coil ICM Airflow Small Cabinet UNIT SIZE CFM ADJUST PIN SELECT LO PIN NOM PIN HI PIN EXTERNAL STATIC PRESSURE RANGE 0.0–0.4 0.4–0.7 0.7–1.0 0.0–0.4 0.4–0.7 0.7–1.0 0.0–0.4 0.4–0.7 0.7–1.0 024 COOLING † 745 675 – 835 750 690 940 8...

Table 16—50GL/50JZ Cooling & Heating Dry Coil ICM Airflow Small Cabinet UNIT SIZE CFM ADJUST PIN SELECT LO PIN NOM PIN HI PIN EXTERNAL STATIC PRESSURE RANGE 0.0–0.4 0.4–0.7 0.7–1.0 0.0–0.4 0.4–0.7 0.7–1.0 0.0–0.4 0.4–0.7 0.7–1.0 024 COOLING † 800 725 – 885 805 730 990 930 855 COOLING DEHUMIDIFY ...

ICM QUICK REFERENCE GUIDE c01034 EASY SELECT HEATER/MOTOR AUX HEAT KW/CFM 0-30 1075 SEC1 SEC2 J1 AC/HP SIZE 036 030 024 018 AC HP-COMFORT HP-EFF NOM HI ENH LO SYSTEM TYPE AC/HP CFM ADJUST ON/OFF DELAY CONTINUOUS FAN MED HI YEL LO AUX1 HUM1 AUX2 24VAC GRY HUM2 YEL WHT BLK ORN BLU VIO 0-20 875 0-10 72...

c01999 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 b...

(4.) ENH (enhanced) selection provides a 30 sec. cooling & heat pump on delay with no airflow, plus 150 seconds at 70 percent airflow and no off delay for added comfort. This will minimize cold blow in heat pump operation and could enhance system efficiency. f. CONTINUOUS FAN—SELECT DESIRED FAN ...

to a level which causes the Thermidistat™ to close its contacts.When the contacts close, the airflow will return to 100 percentof selected cooling airflow. To activate this mode wire inThermidistat™ see jumper in Fig. 10. e. DEHUMIDIFY AND SUPER DEHUMIDIFY CAPABILITIES This model unit is capable of ...

and continuous operation. (See Tables 16, 17 & 18 for airflowdelivery and minimum CFM.) Note that airflow marked is theairflow which will be supplied in emergency heat mode andheating mode on air conditioners when electric heat is theprimary heating source. In heat pump heating mode whenelectric...

This configuration provides the following comfort enhance-ments: (a.) A 30 sec blower on delay with 150 sec at 70 percent airflow to allow the indoor coil to warm up or cooldown before the blower is asked to deliver 100 percentairflow reducing the cold blow sensation at start up inheating and allowi...

value. If circuit R to G is open (0–v.) for super dehumidifymode, the motor delivers reduced airflow to maximize thehumidity removal of the system while minimizing overcooling. e. ELECTRIC HEATING MODE (1.) Thermostat closes circuit R to W/W1, or W2—The unit delivers the selected electric heat airfl...

cooling cycle remains ‘‘on’’ until the room temperature drops topoint that is slightly below the cooling control setting of the roomthermostat. At this point, the thermostat ‘‘breaks’’ the circuitbetween thermostat terminal R to terminals Y and G. These opencircuits de-energize contactor coil C and ...

f. Loosen set-screw that secures wheel to motor shaft, remove screws that secure motor mount brackets to blower housing,and slide motor and motor mount out of blower housing. 2. Remove and clean blower wheel as follows: a. Ensure proper reassembly by marking wheel orientation. b. Lift wheel from hou...

Fig. 14—ICM FIOP Electric Schematic—Unit 48GP C01035 14

Table 4—ICM FIOP Physical Data—Unit 48JZ THIS DATA APPLIES TO 48JZ UNITS WITH THE ICM INDOOR MOTOR FIOP UNIT SIZE 48JZ 024040 030040 030060 036060 036090 042060 042090 NOMINAL CAPACITY (ton) 2 2-1/2 2-1/2 3 3 3-1/2 3-1/2 OPERATING WEIGHT (lb.) 310 324 324 321 321 380 380 COMPRESSORS Quantity Scroll ...

Fig. 15—ICM FIOP Electric Schematic—Unit 48JZ C01101 17

Table 7—ICM FIOP Physical Data—Unit 50GL THIS DATA APPLIES TO 50GL UNITS WITH THE ICM INDOOR MOTOR FIOP UNIT SIZE 024 030 036 042 048 060 NOMINAL CAPACITY (ton) 2 2-1/2 3 3-1/2 4 5 OPERATING WEIGHT (lb) 270 291 299 321 326 399 COMPRESSOR Scroll REFRIGERANT (R-410A) Quantity (lb) 5.0 5.5 6.9 9.0 9.5 ...

Table 8—50GL with ICM FIOP Electrical Data UNIT SIZE 50GL V-PH-HZ VOLTAGE RANGE COMPRESSOR OUTDOOR FAN MOTOR INDOOR FAN MOTOR ELECTRIC HEAT SINGLE POINT POWER SUPPLY MIN MAX RLA LRA FLA FLA Nominal kW* FLA MCA MAX FUSE OR CKT. BKR. MOCP 024 208/230–1–60 187 253 13.5 61.0 0.9 4.3 -/- 3.8/5.05.4/7.2 7...

Fig. 16—ICM FIOP Electrical Schematic—50GL C01037 20

Table 9—ICM FIOP Physical Data—Unit 50JZ THIS DATA APPLIES TO 50JZ UNITS WITH THE ICM INDOOR MOTOR FIOP UNIT SIZE 50JZ024 50JZ030 50JZ036 50JZ042 50JZ048 50JZ060 NOMINAL CAPACITY (ton) 2 2-1/2 3 3-1/2 4 5 OPERATING WEIGHT (lb.) 299 320 328 350 355 428 COMPRESSOR QUANTITY 1 TYPE SCROLL COMPRESSOR REF...

Table 10—50JZ with ICM FIOP Electrical Data UNIT SIZE 50JZ V-PH-HZ VOLTAGE RANGE COMPRESSOR OUTDOOR FAN MOTOR INDOOR FAN MOTOR ELECTRIC HEAT SINGLE POINT POWER SUPPLY MIN MAX RLA LRA FLA FLA Nominal kW* FLA MCA MAX FUSE OR CKT. BKR. MOCP 024 208/230–1–60 187 253 13.5 61.0 0.9 4.3 -/- 3.8/5.05.4/7.2 ...

Fig. 17—ICM FIOP Electrical Schematic—50JZ c01036 23

Table 11–48GP & 48JZ Cooling (and Heat Pump Heating-48JZ only) Dry Coil ICM Airflow Small Cabinet UNIT SIZE CFM ADJUST PIN SELECT LO PIN NOM PIN HI PIN EXTERNAL STATIC PRESSURE RANGE 0.0–0.4 0.4–0.7 0.7–1.0 0.0–0.4 0.4–0.7 0.7–1.0 0.0–0.4 0.4–0.7 0.7–1.0 024 COOLING † 745 675 – 835 750 690 940 8...

Table 16—50GL/50JZ Cooling & Heating Dry Coil ICM Airflow Small Cabinet UNIT SIZE CFM ADJUST PIN SELECT LO PIN NOM PIN HI PIN EXTERNAL STATIC PRESSURE RANGE 0.0–0.4 0.4–0.7 0.7–1.0 0.0–0.4 0.4–0.7 0.7–1.0 0.0–0.4 0.4–0.7 0.7–1.0 024 COOLING † 800 725 – 885 805 730 990 930 855 COOLING DEHUMIDIFY ...

ICM QUICK REFERENCE GUIDE c01034 EASY SELECT HEATER/MOTOR AUX HEAT KW/CFM 0-30 1075 SEC1 SEC2 J1 AC/HP SIZE 036 030 024 018 AC HP-COMFORT HP-EFF NOM HI ENH LO SYSTEM TYPE AC/HP CFM ADJUST ON/OFF DELAY CONTINUOUS FAN MED HI YEL LO AUX1 HUM1 AUX2 24VAC GRY HUM2 YEL WHT BLK ORN BLU VIO 0-20 875 0-10 72...

c01999 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 b...