Safety Considerations

50JZ Single-Packaged 50Hz, CE Electric Heat Pump Units

with Puron® (R-410A) Refrigerant

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A Guide to Operating and Maintaining Your Single-Packaged Electric Heat Pump Units

NOTE: Read the entire instruction manual before starting the installation.

Note to Installer:This manual should be left with the equipment user.

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of these or any other appliances. Failure to follow this warning could result in fire, serious injury, or death.

Do not use this unit if any part has been under water. Immediately call a qualified service technician to inspect the unit and to replace any part of the control system which has been under water. Failure to follow this warning could result in electrical shock, fire, serious injury, or death.

Before performing recommended maintenance, be sure the main power switch to unit is turned off and lockout tag installed. Electric shock could cause serious injury or death.

2.Ice or frost tends to form on the coil during winter heating operation. Your heat pump is designed to automatically melt the ice. When in this defrost cycle, it is normal for steam or fog to rise from the outdoor unit. Do not be alarmed!

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STARTING OR SHUTTING UNITS OFF

1.To start either of these units:

a.Turn on the electrical power supply to unit.

b.Select temperature and set SYSTEM switch or MODE control to desired mode.

2.To shut this unit off:

NOTE: If the unit is being shut down because of a malfunction, call your dealer as soon as possible.

a.Set system SWITCH or MODE control to OFF.

b.Turn off the electrical power supply to unit and install lockout tag.

OPERATING YOUR HEAT PUMP

The operation of your heat pump system is controlled by the indoor thermostat. You simply adjust the thermostat and it maintains the indoor temperature at the level you select. Most thermostats of heat pump systems have 3 controls: a temperature control selector, a FAN control, and a SYSTEM or MODE control. Refer to your thermostat owner's manual for more information.

To better protect your investment and to eliminate unnecessary service calls, familiarize yourself with the following facts:

1.During heating, increasing the thermostat setting more than 2°F/1.1°C may cause the supplemental heaters to be turned on for a short period of time to satisfy the thermostat. Needless use of the supplementary heat reduces potential energy sav- ings.

Fig. 1ÐUnit 50JZ (50Hz)

Step 1ÐCooling Mode

With the SYSTEM or MODE control set to COOL, your heat pump will run in cooling mode until the indoor temperature is lowered to the level you have selected. On extremely hot days, your heat pump will run for longer periods at a time and have shorter ªoffº periods than on moderate days.

Step 2ÐHeating Mode

With the SYSTEM or MODE control of your indoor thermostat set to HEAT, your heat pump will run in heating mode until room temperature is raised to the level you have selected. Of course, your heat pump will run for longer periods to maintain a comfortable environment on cooler days and nights than on moderate ones.

Step 3ÐSupplemental Heat

Your heat pump is your primary heating source. Your system may also be equipped with a supplemental heating source such as electric heat. On cold days and nights, your system will automati- cally turn on the supplemental heat in order to maintain the level of comfort you have selected.

When your heat pump needs additional heat to keep you comfort- able, your Carrier electronic thermostat will turn on the supple- mental heat (if equipped) and display the ªAUX HTº message.

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book	1	4	PC 101	Catalog No. 005±00009	Printed in U.S.A.	Form OM50-C2	Pg 1	2±02	Replaces: New
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50JZ specifications

The Carrier 50JZ is a modern chiller that exemplifies high efficiency and innovative technology, aimed at providing effective cooling solutions for a variety of applications. Designed for commercial and industrial use, the 50JZ unit is particularly well-suited for large buildings, data centers, and manufacturing facilities, where reliable temperature control is crucial.

One of the standout features of the Carrier 50JZ is its high energy efficiency, which not only helps in reducing operational costs but also aligns with contemporary sustainability goals. The chiller is equipped with advanced inverter technology that modulates the compressor speed, allowing it to adjust to varying cooling demands efficiently. This results in significant energy savings, especially during partial load conditions.

The 50JZ utilizes environmentally friendly refrigerants, further contributing to its appeal in today's eco-conscious market. The use of R-134a refrigerant minimizes harmful effects on the ozone layer and meets stringent environmental regulations, ensuring compliance with global standards.

Another notable characteristic of the 50JZ is its compact design, which facilitates easy installation and maintenance. The unit is designed for space optimization, allowing it to fit into tight environments while still delivering powerful performance. Additionally, its robust construction ensures durability and longevity, making it a reliable choice for long-term operations.

In terms of technology, the 50JZ features Carrier's proprietary controls system, which provides advanced monitoring and management capabilities. This system allows for real-time performance tracking and diagnostics, enabling facility managers to optimize operations and respond swiftly to any operational issues. The integration of IoT capabilities offers enhanced connectivity, enabling remote access to system performance data for improved decision-making.

Noise reduction is another critical aspect of the Carrier 50JZ. It incorporates innovative sound attenuation technologies, resulting in quieter operation compared to traditional chillers. This makes it ideal for noise-sensitive environments such as schools, hospitals, and residential areas.

Overall, the Carrier 50JZ combines high efficiency, eco-friendliness, advanced technology, and user-centric design, making it a top choice for effective cooling in various applications. With its ability to deliver reliable performance while minimizing environmental impact, the Carrier 50JZ represents the future of cooling solutions in industrial and commercial settings.