User’s Information Manual

48ZG,ZN030-105 48ZT,ZW,Z6,Z8075-105 Gas Heating/Electric Cooling Units

with COMFORTLINK™ Controls

NOTE TO INSTALLER:

TO LIGHT UNIT

This manual should be left with the equipment owner.

WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

—Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

—WHAT TO DO IF YOU SMELL GAS

•Do not try to light any appliance.

•Do not touch any electrical switch; do not use any phone in your building.

•Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

•If you cannot reach your gas sup- plier, call the fire department.

—Installation and service must be per- formed by a qualified installer, service agency or the gas supplier.

Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information, con- sult a qualified installer, service agency, or the gas supplier.

Before performing recommended maintenance, be sure main power switch to unit is turned off. Electrical shock could cause personal injury.

1.Do not turn off the electrical power to unit without first turning off the gas supply.

2.Before attempting to start the gas heating section, familiarize yourself with all the procedures that must be followed.

3.Never attempt to manually light the unit with a match, lighter, or any other flame. If the electric sparking de- vice fails to light the burners, refer to the shutdown procedures, then call your dealer as soon as possible.

If you do not follow these instructions exactly, a fire or explosion may result, causing property damage, injury, or loss of life.

See Fig. 1 for location of gas valve(s). Refer to Fig. 2 while proceeding with the following steps.

1.Turn off the unit demand for cooling or heating by using the scrolling marquee. The scrolling marquee is located in the control box at the compressor end of the unit.

a.Push the ESCAPE key unit a blank display screen is shown.

b.Push the key until the SERVICE TEST LED is lit.

c.Push the ENTER key. The display will show STOP.

d.Push the ENTER key again. The NO/YES display will flash.

e.Push the or key to toggle the display to YES and then push ENTER . The unit will be locked off from heating, cooling or any operation. The controls will still function and the display will still operate.

2.Close the field-installed manual gas shutoff valve.

3.Turn off the electrical power to the unit using the optional disconnect or the field-installed disconnect and lock off using proper lockout and tag-out procedures.

Your combination heating/cooling rooftop unit is equipped with an automatic direct spark ignition system and induced- draft power combustion blower.

Do not attempt to light by hand; personal injury may result.

4.Open the burner section hinged access door.

5.Move the switch on the gas valves to the OFF position and wait 5 minutes.

NOTE: If this is the first installation of the unit, the gas flue hoods must be installed before operating unit. These must be installed for the unit to run properly.

6.Move the switch on the gas valves to the ON position.

7.Close the burner section hinged access door.

8.Turn on the electrical supply to the units.

9.Open the field-installed manual gas valve.

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

Book	1	Catalog No. 04-53480045-01	Printed in U.S.A.	Form 48Z-5SO	Pg 1	7-07	Replaces: 48Z-3SO
Tab	1a

Z6, 48ZG, 48ZT, ZW, Z8075-105 specifications

The Carrier Z8075-105, Z6, 48ZG, 48ZT, and ZW series of HVAC systems represent a significant advancement in heating, ventilation, and air conditioning technology. These units are specifically designed for enhanced energy efficiency, superior performance, and ultimate comfort in residential and commercial spaces.

The Carrier Z8075-105 model stands out due to its impressive cooling and heating capabilities. It features a high Seasonal Energy Efficiency Ratio (SEER) and Heating Seasonal Performance Factor (HSPF), allowing for reduced energy consumption and lower utility bills. This model is equipped with advanced inverter technology that enables variable speed operation, significantly reducing noise levels and providing consistent temperature control.

Turning to the Z6 model, it is engineered for both robustness and reliability. It incorporates a modular design that allows for easy installation and maintenance. One of its key features is the use of innovative insulation materials that minimize sound levels, making it ideal for noise-sensitive environments. Furthermore, the Z6 series comes with a smart control system that allows users to monitor and adjust settings remotely, further optimizing energy usage.

The 48ZG and 48ZT models are designed with durability in mind. They utilize a fully enclosed compressor system that protects critical components from environmental damage. These models also boast enhanced dehumidification capabilities, making them suitable for humid climates. Equipped with advanced filtration systems, they improve indoor air quality by removing allergens and particulates effectively.

Carrier's ZW series exemplifies cutting-edge technology with its dual fuel capability, which allows the system to switch between a heat pump and a gas furnace, depending on outdoor temperatures. This feature maximizes energy savings while ensuring a comfortable indoor climate year-round. The ZW models also support integration with smart home systems, providing seamless control through mobile apps.

Collectively, these Carrier models are designed to meet the diverse needs of today’s consumers, offering a blend of efficiency, comfort, and intelligent control. Their ability to adapt to various environmental conditions while maintaining optimal performance makes them a leading choice in the HVAC market. With a focus on sustainability, these systems not only offer significant energy savings but also contribute to reducing the carbon footprint. As technology continues to evolve, Carrier remains at the forefront, delivering reliable, innovative HVAC solutions.