Carrier 48GP (N) 024-060, 50GL 024-060, 48JZ (N) 024-060, 50JZ 024-060 Humidifier Wiring-48JZ

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(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 SPEED WHEN THERMOSTAT IS SET ON CONTINUOUS FAN

(1.) LO speed—Factory setting, 50 percent cooling mode airflow.

(2.) MED speed—Move connector to MED, 65 percent cooling mode airflow.

(3.) HI speed—Move connector to HI, 100 percent cooling mode airflow (See Fig. 8, F as indicated).

g.LOW-VOLTAGE CIRCUIT FUSING AND REFERENCE

The low-voltage circuit is fused by a board-mounted 5–amp automotive fuse placed in series with the transformer SEC2 and the R circuit. The C circuit of the transformer is referenced to chassis ground through a printed circuit run at SEC1 connected to metal standoff marked with ground symbol.

h.BASIC UNIT CONFIGURATION

The following basic configuration of the indoor motor will provide ARI rated performance of the 48JZ. This BASIC CONFIGURATION should be used when the rated ARI perfor- mance is required.

(1.) HEAT-Factory selected to match heat input size.

(2.) AC/HP Size-Factory selected to match system size, please verify.

(3.) SYSTEM TYPE-Factory selected on 48JZ system for HP-EFF.

(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.

(6.) CONTINUOUS FAN-Select desired fan speed when ther- mostat is set to continuous fan.

i.COMFORT OPTIONS—SUPER DEHUMIDIFY (See Quick Reference Guide)

The Super Dehumidify option is possible when this unit is installed with a field supplied Thermidistat™ control (Super- Dehumidify does not require an outdoor temperature sensor). The following configuration is recommended for maximum cooling/dehumidifying comfort. This configuration will im- prove the comfort provided by the air conditioning system if more humidity removal is desired. While providing this im- proved comfort, the system will operate efficiently, but not at the published ARI SEER efficiency.

The following system configuration is recommended for maxi- mum cooling/dehumidifying comfort (See Fig. 8).

(1.) HEAT-Factory selected to match gas heat size of unit installed.

(2.) AC/HP Size-Factory selected to match system size, please verify.

(3.) SYSTEM TYPE-Factory selected on 48JZ system for HP-EFF.

(4.) AC/HP CFM ADJUST-Select NOM (Lo for 060).

(5.) ON/OFF DELAY-Select ENH profile.

(6.) CONTINUOUS FAN-Select desired fan speed when ther- mostat is set to continuous fan.

(7.) LOW VOLTAGE CONNECTIONS-Make connections as shown in ELECTRICAL CONNECTIONS section.

(8.) CONFIGURE THERMIDISTAT™-Follow Thermidis- tat™ installation instructions for Super Dehumidify opera- tion.

ACCESSORY INSTALLATION

a.AUXILIARY TERMINALS

The AUX and HUM terminals on the Easy Select™ Board are tied directly to the G terminal, and provide a 24-v. signal whenever the G terminal is energized (See Fig. 9). During Super dehumidify mode, the G signal is not present and the auxiliary terminals are not energized. If the installation includes the use of this operating mode, do not use these terminals to control accessories. See Electronic Air Cleaner and Humidifier sections for further information.

b.ELECTRONIC AIR CLEANER CONNECTIONS

The AUX1 and AUX2 terminals are not always energized during blower operations, as described above. When using an electronic air cleaner with the unit, use Airflow Sensor P/N. KEAAC0101AAA. The airflow sensor turns on electronic air cleaner when the blower is operating.

c.HUMIDIFIER / THERMIDISTAT™ CONNECTIONS

Easy Select™ Board terminals HUM1 and HUM2 are provided for direct connection to the low-voltage control of a humidifier through a standard Thermidistat™ (See Fig. 9). These terminals are energized with 24-v. when G thermostat signal is present (See Fig. 10). Alternately, the 24-v. signal may be sourced from the W and C on the 9 pin connector. When using a Thermidis- tat™ Control the 24-v. signal may be sourced directly from the Thermidistat™ HUM terminal (See Fig. 8, 9 & 10).

 

THERMIDISTAT ™

 

HUM 1

 

 

(C)

24-VAC

TO HUMIDIFIER

 

HUM 2

(G)

HUMIDIFIER WIRING

C01108

Fig. 9—Humidifier Wiring-48JZ

EASY SELECT

BOARD TERMINAL

BLOCK

 

J1

DH

 

 

 

 

THERMIDISTAT

JUMPER

 

R

 

 

C01109

Fig. 10—Thermidistat™ Wiring for

De-Humidify Mode-48JZ

d.DEHUMIDIFY CAPABILITY WITH STANDARD THERMIDISTAT™ CONNECTION

Latent capacities for this unit are better than average systems. If increased latent capacity is an application requirement, the ICM board provides connection terminals for use of a Thermidis- tat™. The unit will detect the Thermidistat™ contacts opening on increasing humidity and reduce its airflow to approximately 80 percent of nominal cooling mode airflow. This reduction will increase the system latent capacity until the humidity falls

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Contents Installation, Start-Up, and Operating Instructions Control Voltage Connections Special Procedures for 208-V OperationEasy SELECT-48GP Standard ConnectionTime Delay Profile When Thermostat is SET on Continuous FANHigh Airflow Accessory Installation AIR Conditioner48GP Sequence of Operation Easy SELECT-48JZ Select OptionsHumidifier Wiring-48JZ 48JZ Sequence of Operation TionEasy SELECT-50GL & 50JZ Page Humidifier Wiring for 50GL & 50JZ 50GL & 50JZ Sequence of OperationICM Fiop START-UP FAN OperationHeat Pump Heating Cooling ModeGAS Heat Mode Automatic CHANGE-OVERICM Fiop Physical Data-Unit 48GP LOSS-OF-CHARGE/LOW-PRESSURE Switch 48GP with ICM Fiop Electrical DataSize 48GP ICM Fiop Electric Schematic-Unit 48GP Indoor Coil ICM Fiop Physical Data-Unit 48JZOutdoor Coil Indoor Blower48JZ with ICM Fiop Electrical Data ICM Fiop Electric Schematic-Unit 48JZ ICM Fiop Physical Data-Unit 50GL Heat Power Supply Size 50GL 50GL with ICM Fiop Electrical DataRange Motor ICM Fiop Electrical Schematic-50GL ICM Fiop Physical Data-Unit 50JZ Compressor Quantity TypeRefrigerant Range Motor Heat Power Supply Size 50JZ 50JZ with ICM Fiop Electrical DataICM Fiop Electrical Schematic-50JZ CFM Adjust LO PIN NOM PIN HI PIN Unit PIN Select Size 48GP & 48JZ ICM Air Flow vs. Temperature Rise Chart 48GP & 48JZ Gas Heating ICM Airflow Small Cabinet48GP & 48JZ Gas Heating ICM Airflow Large Cabinet Minimum Airflow for Reliable Electric Heater Operation CFM ICM Fiop WET Coil Pressure Drop in. wg Electric Heat Pressure Drop Table in. wgElectric Heat Pressure Drop Table in. wg Large Cabinet Filter Pressure Drop Table in. wgTroubleshooting Chart Cause RemedySTART-UP Checklist Preliminary InformationBook Catalog No Form 48-21SI 10-01 Replaces 48-20SI Tab

48JZ (N) 024-060, 50JZ 024-060, 48GP (N) 024-060, 50GL 024-060 specifications

The Carrier 50GL 024-060, 48GP (N) 024-060, 50JZ 024-060, and 48JZ (N) 024-060 units are part of Carrier’s advanced HVAC solutions, offering efficient cooling and heating systems designed for both residential and light commercial applications. These models are known for their reliability, energy efficiency, and innovative technology, making them a popular choice for users looking to enhance comfort while reducing operational costs.

One of the main features of the Carrier 50GL series is its use of high-efficiency compressors. These compressors are engineered to operate quietly and effectively, providing optimal performance even during peak load conditions. Additionally, they are equipped with smart features that allow for precise temperature control and improved energy savings, often exceeding standard performance metrics.

The 48GP (N) units are particularly notable for their compact design, making them ideal for installations where space is a limitation. Despite their smaller footprint, they boast significant cooling and heating capacities, ensuring consistent comfort. The use of advanced variable-speed technology in these units helps to maintain consistent indoor temperatures while minimizing energy consumption.

The 50JZ and 48JZ (N) models incorporate advanced inverter technology, allowing for variable refrigerant flow. This technology adjusts the system's output according to the demand, resulting in lower energy usage and increased comfort levels. Additionally, these units feature enhanced filtration systems that improve indoor air quality by capturing airborne pollutants, allergens, and other contaminants.

Another key characteristic of these Carrier units is their durability. Built with high-quality materials, they are designed to withstand harsh environmental conditions, ensuring longevity and reduced maintenance requirements. Furthermore, the installation process is simplified, thanks to user-friendly design features that promote easy serviceability and accessibility.

Overall, the Carrier 50GL 024-060, 48GP (N) 024-060, 50JZ 024-060, and 48JZ (N) 024-060 HVAC units stand out in the industry for their advanced features, energy efficiency, and robust performance. They offer a comprehensive solution for anyone seeking reliable temperature control and improved indoor air quality in a variety of settings.
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