()NITINTRODUCTION

This48ESunitisasmallpackagedgasheat/electriccoolingsystem thatcanutilizethecomfortofgasheatingpackagedalongwitheffi- cientelectricairconditioningThisunitusesPuron®,theozone. friendlyrefrigerantforcooling.

StartingorShuttingOffUnit Note:Yourcombinationheating/coolingunitisequippedwithan automaticdirectsparkignitionandpowercombustionblower.

Tostartunit gas heat:

Refer to Fig. 2 for location of unit front access panel. Refer to Fig. 3 for location of gas valve. Refer to Fig. 4 while proceeding with the following steps.

1.Set the temperature selector on room thermostat to the lowest

temperature setting and set system switch to HEAT.

2.Close the external manual gas shutoff valve.

3.Turn off the electrical supply to the unit.

4.Remove the front access panel with a 5/16-in. nut driver.

5.Move the selector switch on the internal gas valve to the OFF position and wait 5 minutes.

6.Move the selector switch on the internal gas valve to the ON position.

7.Replace the front access panel.

8.Turn on the electrical supply to unit.

9.Open the external manual gas shutoff valve.

10.Set the temperature selector on room thermostat slightly above room temperature to start unit. The induced-draft combustion air fan will start. Main gas valve will open and main burners should ignite within 5 seconds. If the burner does not light within 5 seconds, the ignition module will go into a Retry Mode after a period of approximately 22 seconds (following the 5-secondignition period). If the burners do not light within 15 minutes of the initial call for heat, there is a lockout.

11.Set the temperature selector on room thermostat to desired setting.

ACCESS PANEL

FILTER ACCESS

PANE L*

*For accessory filter rack.

A08439

Fig. 2 - Accessory Filter Rack Access Panel

(Optional Louvered Panels Shown)

FIRE AND EXPLOSION HAZARD

Failure to follow this warning could result in personal iniury, death, and/or property damage.

1.If the main burners fail to light, or the blower fails to start, shut down gas heating section and call your dealer for service.

2.Never attempt to manually light the main burners on unit

with a match, lighter, or any other flame. If the electric sparking device fails to light the main burners, refer to the

following shutdown procedures, then call your dealer as soon as possible.

To shut offunit gas heat:

FIRE, EXPLOSION,ELECTRICALSHOCK

HAZARD

Failure to follow this warning could result in personal iniury, death, and/or property damage.

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

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

Should overheating occur or the gas supply fail to shut off, shut off the external manual gas valve to the unit before shutting off the elec- trical supply. 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 and any gas control which has been under water.

Refer to Fig. 5 while proceeding with the following steps.

1.Set the temperature selector on room thermostat to lowest

temperature setting and set system SWITCH to OFF.

2.Close the external manual shutoff valve.

3.Turn off the electrical power supply to the unit.

4.Remove the front access panel.

5.Move the selector switch on the internal gas valve to the OFF position.

6.Replace the front access panel.

To start unit electric cooling:

Refer to Fig. 6 while proceeding with the following steps.

1.Set the temperature selector on room thermostat to highest

temperature setting and set system SWITCH to OFF.

2.Close the external manual shutoff valve.

3.Turn off the electrical power supply to the unit.

4.Remove the front access panel.

5.Move the selector switch on the internal gas valve to the OFF position.

6.Replace the front access panel

7.Restore electrical power to the unit and set system switch to COOL.

8.Set the temperature selector on room thermostat slightly be-

low the room temperature to start unit.

To shut off unit electric cooling:

Refer to Fig. 7 while proceeding with the following steps.

1.Set the temperature selector on room thermostat to highest

temperature setting and set system SWITCH to OFF.

2.Close the external manual shutoff valve.

3.Turn off the electrical power supply to the unit.

Page 2 Page 4
Page 3
Image 3
Carrier 48ES manual Tostartunit gas heat, Optional Louvered Panels Shown, To shut off unit electric cooling
Page 2 Page 4

48ES specifications

The Carrier 48ES is a notable addition to the HVAC market, designed to bring high performance and efficiency to both residential and commercial spaces. This unit embodies Carrier's commitment to innovation and comfort, seamlessly integrating advanced technologies and features that meet the evolving needs of its users.

One of the standout characteristics of the Carrier 48ES is its impressive energy efficiency. The unit is equipped with the latest in high-efficiency compressor technology, which significantly reduces energy consumption. Its SEER (Seasonal Energy Efficiency Ratio) ratings demonstrate its capability to provide cooling while minimizing electricity costs, making it an eco-friendly option for consumers.

The design of the 48ES prioritizes durability and reliability. Constructed with robust materials and a heavy-duty cabinet, the unit is built to withstand various weather conditions. The integrated corrosion-resistant coating further enhances durability, ensuring a long lifespan for the system, even in challenging environments.

Furthermore, the Carrier 48ES integrates advanced airflow technologies. Its multi-speed blower motors enable precise airflow control, optimizing comfort levels throughout the space. The unit's variable-speed operation allows for adjustments in cooling power, ensuring that the system runs efficiently while maintaining desired temperatures.

Comfort control is another focal point of the 48ES. Equipped with smart thermostats and connectivity options, users can easily manage and monitor their HVAC systems remotely. This feature not only enhances convenience but also contributes to energy savings, as homeowners can adjust settings based on occupancy and weather conditions.

Noise reduction is a significant advantage of the Carrier 48ES. It operates quietly, thanks to its advanced sound-dampening features. This makes it ideal for use in residential settings where a peaceful environment is a priority.

In conclusion, the Carrier 48ES represents the forefront of HVAC technology, offering a blend of efficiency, durability, and comfort. Its innovative features and enhanced performance make it a smart choice for those looking to optimize their indoor environments while keeping energy costs in check. Whether for a home or business, the Carrier 48ES stands out as a versatile and reliable HVAC solution.
Top Page Image Contents