Carrier 42 SERIES specifications Contents

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CONTENTS

Page

CONTROL SELECTION GUIDE . . . . . . . . . . . . . . . 3

STANDARD WIRING PACKAGES . . . . . . . . . . . . 4-8

Manual Fan Control . . . . . . . . . . . . . . . . . . . . . . . . . 4

Thermostatic Fan Control,

2-Pipe Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Thermostatic Fan Control,

2-Pipe System with Safety Cycle . . . . . . . . . . . . 5 Thermostatic Electric Valve Control, 2-Pipe . . . 5

Thermostatic 2-Pipe Auxiliary Electric Heat with Valve Control . . . . . . . . . . . . . . . . . . . . . . . . . 6

Thermostatic 2-Pipe Total Electric Heat

with Valve Control . . . . . . . . . . . . . . . . . . . . . . . . . 7 Thermostatic Valve Control, 4-Pipe . . . . . . . . . . . 8

ELECTRIC HEAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Heater Construction . . . . . . . . . . . . . . . . . . . . . . . . . 9

Heater Electrical Data . . . . . . . . . . . . . . . . . . . . . . . 9

REMOTE-MOUNTED CONTROLS . . . . . . . . . . . . 10

Standard 3-Speed Switch . . . . . . . . . . . . . . . . . . . 10

Combination Thermostat/3-Speed Switch . . . . 10

Wall Thermostat, 2-Pipe . . . . . . . . . . . . . . . . . . . . 10

Wall Thermostat, 4-Pipe . . . . . . . . . . . . . . . . . . . . 10

ALTERNATE WALL THERMOSTATS . . . . . . . . . 11

Wall Thermostat (Honeywell) with Manual 3-Speed Fan Switch and ON-OFF Switch . . . 11

Wall Thermostat (Sunne) with Manual

3-Speed Fan Switch and ON-OFF Switch . . . 11

Page

UNIT MOUNTED CONTROLS . . . . . . . . . . . . . . 12,13

Standard 3-Speed Switch . . . . . . . . . . . . . . . . . . . 12

Combination Thermostat/3-Speed Switch . . . . 12

Combination Thermostat/ON-OFF

Toggle Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Two-Pipe Thermostat . . . . . . . . . . . . . . . . . . . . . . . 13

Four-Pipe Thermostat . . . . . . . . . . . . . . . . . . . . . . 13

Automatic Changeover . . . . . . . . . . . . . . . . . . . . . 13

BASIC DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . 14

FIELD PIPING CONNECTIONS . . . . . . . . . . . . . . 15

VALVE PACKAGES . . . . . . . . . . . . . . . . . . . . . . . 16-19

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Two-Way Motorized Control Valve . . . . . . . . . . . 18

Two-Way Motorized Control Valve

with Aquastat Bleed Bypass Line . . . . . . . . . . 18 Three-Way Motorized Control Valve . . . . . . . . . 19 No Motorized Control Valve . . . . . . . . . . . . . . . . . 19

VALVE PACKAGE ARRANGEMENTS . . . . . . . 20-23

PIPING COMPONENTS . . . . . . . . . . . . . . . . . . . . 24-27

Cv FACTOR vs WATER PRESSURE DROP . . . 28

SYSTEM COMPONENT WORKING PRESSURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

COPPER WATER TUBE AND JOINT MATERIAL PRESSURE RATINGS . . . . . . . . . . . . . . . . . . . . . 30

CORRECTION FACTORS FOR GLYCOL . . . . . . 31

STANDARD ACCESSORIES AND OPTIONS . . 32

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Contents Application Data Contents Control Selection Guide PipeStandard Wiring Packages Thermostatic Fan Control, 2-Pipe Systems ÐThermostatic Electric Valve Control, 2-Pipe Ð OnlyUnit Location Wiring Package Electric Type Unit Location Wiring Package Electric Type Unit Type Location Wiring Package Electric Heater Electrical Data Electric HeatHeater Construction Thermostat Electrical Data Pilot Duty Ð 125 VA Combination Thermostat/3-Speed SwitchREMOTE-MOUNTED Controls Alternate Wall Thermostats Fan SwitchThermostat and Fan Switch Electrical Ratings Thermostat Electrical Ratings Amperes Thermostat Valve LoadMED Combination Thermostat/ON-OFF Toggle SwitchUNIT-MOUNTED Controls Thermostat Electrical Data Pilot Duty Ð 125 VA at 120-277 Basic Definitions Standard 2-pipe units will be the same end connectionHydronic Coil Arrangement Field Piping ConnectionsSymbol And Placement Of Valves Valve PackagesPage Valve Packages Two-Way Motorized Control Valve Three-Way Motorized Control Valve No Motorized Control ValveValve Package Arrangements Page Valve Package Arrangements DescriptionAcceptable Field-Furnished Pneumatic Valves CapacitySYMBOL/SKETCH Description CV Factor Rating Steam PSI USE Piping ComponentsHayes Piping Components Compression Stop ValveWAY Motorized Valve Electric SYMBOL/SKETCH Description CV Factor Rating SteamUSE WAY Pneumatic ValveFormula Example CV Factor vs Water Pressure DropGraph Example Page Copper Water Tube and Joint Material Pressure Ratings Joint MaterialsExample Correction Factors for GlycolEquivalent water ¯ow method for all 42 Series Models Standard Accessories and Options Cabinet Changes

42 SERIES specifications

The Carrier 42 SERIES represents a cutting-edge solution in the realm of HVAC systems, meticulously designed to provide efficient heating, cooling, and ventilation for residential and commercial spaces. Known for their reliability and superior performance, these units combine advanced technologies with user-friendly features, catering to diverse climate needs.

One of the standout features of the Carrier 42 SERIES is its energy efficiency. These units are equipped with high Seasonal Energy Efficiency Ratings (SEER) and Heating Seasonal Performance Factor (HSPF) ratings, which translate to reduced energy consumption and lower utility bills. The use of advanced inverter technology allows the compressor to adjust its speed and output according to the precise heating or cooling needs of a space, ensuring optimal comfort while minimizing energy waste.

In terms of operation, the Carrier 42 SERIES includes a variable speed compressor that not only enhances comfort but also ensures quieter operation. Unlike traditional systems, these units can run at lower speeds for longer periods, resulting in a more consistent indoor climate without the disruptive noise typically associated with HVAC systems.

Another significant aspect of the Carrier 42 SERIES is its robust construction and advanced materials. Built with durability in mind, these units feature weather-resistant cabinets and enhanced corrosion protection, ensuring a longer lifespan and reliable performance even in harsh environmental conditions.

Smart connectivity is also a hallmark of the Carrier 42 SERIES. Many models come with integrated Wi-Fi capabilities, allowing users to control their heating and cooling systems remotely via mobile apps. This feature enables homeowners to manage their indoor climate settings from anywhere, enhancing convenience and energy savings.

Furthermore, the Carrier 42 SERIES incorporates advanced air filtration systems designed to improve indoor air quality. These systems capture dust, allergens, and other airborne pollutants, contributing to a healthier living environment.

Overall, the Carrier 42 SERIES emerges as an exceptional choice for anyone seeking a reliable, efficient, and technologically advanced HVAC system. With its focus on energy efficiency, quiet operation, durability, smart home integration, and air quality improvement, it meets the demands of modern users while ensuring comfort throughout the year.
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