Instruction/ maintenance manual of the product 48JZ (N) 024-060 Carrier
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48GP (N) 024-060, 48JZ (N) 024-060 50GL 024-060, 50JZ 024-060 ICM FIOP Installation Instructions Installation, Start-Up, and Operating Instructions NOTE: Read the entire instruction manual before starting the installation. TABLE OF CONTENTS SAFETY CONSIDERATIONS .
Approved for outdoor installation on wood flooring or on class A, B or C roof covering materials. Before performing service or maintenance operations on system, turn off main power to unit and install lock-out tag. Turn off accessory heater power switch if applicable.
The ICM motor uses the selected taps to modify its operation to a pre-programmed table of airflows. The unit must be configured to operate properly with system components with which it is installed.
(2.) AC/HP Size-Factory selected to match system size, please verify. (3.) SYSTEM TYPE-Factory selected on 48GP system AC- AIR CONDITIONER. (4.) AC/HP CFM ADJUST-Select HIGH for 042 & 048, NOM for 036 & 060, and LO for 024 & 030.. (5.) ON/OFF DELAY-Factory selected 0/90 profile.
b. COOLING MODE (1.) If indoor temperature is above temperature set point and humidity is below humidity set point, thermostat closes circuits R to G, R to Y/Y2 and R to O—The unit delivers single speed cooling airflow. c. COOLING MODE-DEHUMIDIFICATION (1.
(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.
to a level which causes the Thermidistat™ to close its contacts. When the contacts close, the airflow will return to 100 percent of selected cooling airflow.
and continuous operation. (See Tables 16, 17 & 18 for airflow delivery and minimum CFM.) Note that airflow marked is the airflow which will be supplied in emergency heat mode and heating mode on air conditioners when electric heat is the primary heating source.
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 cool down before the blower is.
value. If circuit R to G is open (0–v.) for super dehumidify mode, the motor delivers reduced airflow to maximize the humidity removal of the system while minimizing over cooling. e. ELECTRIC HEATING MODE (1.) Thermostat closes circuit R to W/W1, or W2—The unit delivers the selected electric heat airflow.
(2.) COOLING MODE— Press MODE button on the Thermidistat™ until COOL icon is displayed. Cooling begins within 10 sec. and remains on for 4 minutes. Observe that compressor, outdoor fan and indoor blower motors start after the call for Cooling. At the end of 4 minutes, the cooling cycle stops and the MODE reverts back to OFF .
cooling cycle remains ‘‘on’’ until the room temperature drops to point that is slightly below the cooling control setting of the room thermostat. At this point, the thermostat ‘‘breaks’’ the circuit between thermostat terminal R to terminals Y and G.
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.
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 1 REFRIGERANT (R-410A) Quantity (lb.
Table 5—ICM FIOP Physical Data—Unit 48JZ (Continued) THIS DATA APPLIES TO 48JZ UNITS WITH THE ICM INDOOR MOTOR FIOP UNIT SIZE 48JZ 048090 048115 048130 060090 060115 060130 NOMINAL CAPACITY (ton) 444555 OPERATING WEIGHT (lb.) 409 409 409 504 504 504 COMPRESSORS Quantity Scroll 1 REFRIGERANT (R-410A) Quantity (lb.
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.
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.
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.
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.
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.
Table 13—48GP & 48JZ Gas Heating ICM Airflow Small Cabinet EASY SELECT™ BOARD SETTING (CFM) 700 800 1100 1250 Unit Size External Static Pressure 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 0.0–0.
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.
Table 19—ELECTRIC HEAT PRESSURE DROP TABLE (in. wg) Small Cabinet STATIC CFM 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 5k W 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.04 0.06 0.07 7.5 kW 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.03 0.05 0.
ICM QUICK REFERENCE GUIDE c01034 EASY SELECT HEA TER/MOTOR AUX HEA T 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 DEL.
c01999 ST ART -UP CHECKLIST (Remove and Store in Job File) I. Preliminary Information MODEL NO .:_________________________________ SERIAL NO .:__________________________________ D A TE:_______________________________________ TECHNICIAN:_________________________________ II.
Copyright 2001 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 4821si Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 4 Tab 1a 1a PC 101 Catalog No.
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