Carrier KSALA0301410 Low-Ambient Pressure Switch Installation Manual

Low-Ambient	KSALA0201R22
Pressure Switch	KSALA0301410

Installation Instructions

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

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory authorized kits or accessories when modifying products.

Follow all safety codes. Installation must be in compliance with local and national building codes. Wear safety glasses, protective clothing, and work gloves. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit.

Recognize safety information.

This is the safety-alert symbol . When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury.

These words are used with the safety-alert symbol. DANGER identifies the most serious hazards, which will result in severe personal injury or death. WARNING signifies a hazard, which could result in personal injury or death. CAUTION is used to identify unsafe practices, which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

!WARNING

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

Before beginning any installation or modification, be sure the main electrical disconnect is in the OFF position. Tag the disconnect switch with a suitable warning label.

INTRODUCTION

These instructions cover the installation of low-ambient pressure switch Part No. KSALA0201R22 and KSALA0301410 in all single-speed air conditioners or heat pumps using R-22 or R-410A. Refer to Table 1 for kit usage. This device is a long life pressure switch that maintains head pressure by turning the fan off and on. Other accessories may be required. Refer to the Required Changes for Cooling Units and Heat Pump Units section.

DESCRIPTION AND USAGE

The low-ambient pressure switch kit is a long life pressure switch which turns the fan on and off as shown in Table 1. It is wired in series with black fan lead. Sleeve-bearing motors can be used with this control.

INSTALLATION

The pressure switch is mounted inside the outdoor unit cabinet by using adapter tube supplied. The adapter tee is mounted to liquid service valve and tube is routed through one of the knockout holes in unit cabinet. From inside cabinet, the flare nut is attached to extender tube. (See Fig. 1.) The pressure switch is wired in series with black or common fan lead.

PROCEDURE 1—WIRING FOR ALL VOLTAGES OF COOLING UNITS

For all voltages of cooling units, refer to Fig. 2 and wire low-ambient pressure switch as follows:

1.Disconnect black fan lead from contactor and connect this lead to yellow or violet wire from low-ambient pressure switch using connector supplied.

2.Connect blue wire from low-ambient pressure switch to contactor terminal from which black fan lead was removed.

PROCEDURE 2—WIRING FOR HEAT PUMPS

Heat pumps require a normally closed isolation relay with the 24-v coil connected to the C and O terminals of defrost board.

A. 208/230v Applications

For 208/230-v heat pump applications, refer to Fig. 3 and wire low-ambient pressure switch as follows:

1.Remove black fan lead from defrost board terminal OF2 and reconnect it to NC terminal of isolation relay. Connect yellow or violet lead from low-ambient pressure switch to same NC terminal of isolation relay.

2.Connect a wire from the other NC terminal of isolation relay to OF2 terminal of defrost board. Connect blue lead from low-ambient pressure switch to same NC terminal of isolation relay.

B.460v Applications

For 460-v heat pump applications, refer to Fig. 4 and wire low-ambient pressure switch as follows:

1.Remove black fan lead from outdoor fan relay terminal number 3 and reconnect it to NC terminal of isolation relay. Connect yellow or violet lead from low-ambient pressure switch to same NC terminal of isolation relay.

2.Connect a wire from outdoor fan relay terminal number 3 to other NC terminal of isolation relay. Connect blue lead from low-ambient pressure switch to same NC terminal of isolation relay.

KSALA0301410, KSALA0201R22 specifications

The Carrier KSALA0201R22 and KSALA0301410 are two models in Carrier's renowned lineup of air conditioning units, designed to deliver optimal cooling performance and energy efficiency. These units are ideal for both residential and commercial applications, ensuring comfort in various indoor settings.

One of the standout features of the KSALA0201R22 and KSALA0301410 is their powerful cooling capacity. The KSALA0201R22 model offers an impressive 20,000 BTUs of cooling power, making it suitable for medium to large rooms. In contrast, the KSALA0301410 ramps up to 30,000 BTUs, handling larger areas with ease. This dynamic range allows customers to select a unit that best fits their specific needs, ensuring maximum comfort regardless of room size.

Energy efficiency is another critical characteristic of these models. Both units are engineered with advanced technologies aimed at reducing energy consumption while providing high operational efficiency. The KSALA series incorporates eco-friendly refrigerants, with the KSALA0201R22 using R-22, a common choice for many air conditioning systems. This not only helps in minimizing environmental impact but also contributes to lower utility bills for consumers.

In terms of design, the KSALA models feature compact and sleek aesthetics, providing a modern look that seamlessly integrates into various indoor environments. Their durable construction ensures reliability and longevity, making them a sound investment for years to come. The units are also equipped with user-friendly controls, allowing for easy adjustments to cooling settings and temperature preferences.

Furthermore, Carrier's commitment to innovation is evident in these models, which include a range of smart technologies. These units can be retrofitted with compatible smart thermostats, enabling users to control their air conditioning systems remotely. This capability adds convenience and promotes energy savings by allowing users to adjust their cooling settings when they are away from home.

Overall, the Carrier KSALA0201R22 and KSALA0301410 air conditioning units exemplify the brand’s dedication to quality, efficiency, and user comfort. With their robust cooling capacities, energy-efficient designs, and smart technology compatibility, these models are well-equipped to meet the demands of today’s consumers, ensuring a comfortable environment no matter the weather outside.