Carrier 42 Series Manual - Essential Information for Air Conditioners
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Two-Pipe Thermostat, Model TF103 Ð This single- pole, double-throw (SPDT) thermostat has snap-action con- tacts. The standard temperature range is 60 - 90 F.

Four-Pipe Thermostat, Model TH104 Ð With this thermostat, heating and cooling are sequenced (automatic changeover) with 6 degree separation between HEATING ON and COOLING ON. The standard temperature range is 60 - 90 F.

Thermostat Electrical Data

(Pilot Duty Ð 125 VA at 120-277 v)

ITEM

VOLTS

FLA

LRA

TF103

120

16

80

and

240

12

60

TH104

277

10

50

Automatic Changeover (Summer-Winter Switch) Ð The automatic-changeover thermostat is a single-pole double- throw (SPDT) thermal switch in a moistureproof and dust- proof enclosure. Thermostat mechanism and lead ends are hermetically sealed in a polypropylene enclosure with ep- oxy resin. Device clamps on coil supply pipe with end snap-on clip.

The set point temperatures are factory set. When water temperature rises above 80 F (approximately), the thermo- stat switches to the winter cycle. When water temperature drops below approximately 70 F, the thermostat switches to the summer cycle. Switch reset is automatic.

STEMCO 416-79 L80 8220

AUTOMATIC CHANGEOVER (Summer-Winter) SWITCH

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Contents Application Data Contents Pipe Control Selection GuideThermostatic Fan Control, 2-Pipe Systems Ð Standard Wiring PackagesOnly Thermostatic Electric Valve Control, 2-Pipe ÐUnit Location Wiring Package Electric Type Unit Location Wiring Package Electric Type Unit Type Location Wiring Package Electric Heater Construction Electric HeatHeater Electrical Data REMOTE-MOUNTED Controls Combination Thermostat/3-Speed SwitchThermostat Electrical Data Pilot Duty Ð 125 VA Thermostat and Fan Switch Electrical Ratings Fan SwitchAlternate Wall Thermostats Thermostat Electrical Ratings Amperes Thermostat Valve LoadUNIT-MOUNTED Controls Combination Thermostat/ON-OFF Toggle SwitchMED Thermostat Electrical Data Pilot Duty Ð 125 VA at 120-277 Standard 2-pipe units will be the same end connection Basic DefinitionsField Piping Connections Hydronic Coil ArrangementValve Packages Symbol And Placement Of ValvesPage Valve Packages Two-Way Motorized Control Valve No Motorized Control Valve Three-Way Motorized Control ValveValve Package Arrangements Page Description Valve Package ArrangementsCapacity Acceptable Field-Furnished Pneumatic ValvesPiping Components SYMBOL/SKETCH Description CV Factor Rating Steam PSI USEHayes Compression Stop Valve Piping ComponentsUSE SYMBOL/SKETCH Description CV Factor Rating SteamWAY Motorized Valve Electric WAY Pneumatic ValveGraph Example CV Factor vs Water Pressure DropFormula Example Page Joint Materials Copper Water Tube and Joint Material Pressure RatingsEquivalent water ¯ow method for all 42 Series Models Correction Factors for GlycolExample Cabinet Changes Standard Accessories and Options

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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