Programmable Fan (programmable models only)

The fan output can be programmed based on period of the day. When programming for each day and period the fan can be set to On or AUTO. If the fan button is pressed to change from On to Auto or vice versa when programmable fan has been enabled, the manual change will only remain in effect until the next program period, when the programmable fan setting will be changed per the scheduled setting.

Dry Contact

On the programmable models, the dry contact that can be used for control of an auxiliary device. The dry contact may be configured to be closed for a specific number of minutes per hour for each period of the program schedule. This can be used to operate a ventilator, damper, system blower, or other auxiliary device. There are two terminals, D1 and D2.

If it is desired to operate a ventilator or other device, the D1 and D2 terminals can be connected directly to the equipment. This will provide a closed contact for the specified number of minutes per hour. See Option 19.

If timed control of the system blower is required, the dry contact can be used for this function. The G terminal can be connected to one of the dry contact terminals with the other terminal being connected to Rc and/or Rh for timed control of the fan. Note that this is not the same as programmable fan Option 30.

See Wiring Diagrams for more information.

Relays

This thermostat uses latching relays. When the thermostat loses power, the relays will remain in their last position until power is restored and all relays are reset to their correct position. Out of the box, the outputs may appear to be On when the thermostat is not powered. This is normal. Output states should only be checked when the thermostat is powered.

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Carrier TP-NHP, TP-PHP, TP-PAC, TP-NAC Programmable Fan programmable models only, Dry Contact, Relays

TP-PHP, TP-NHP, TP-NAC, TP-PAC specifications

Carrier TP-PAC, TP-NAC, TP-NHP, and TP-PHP are part of Carrier's advanced product lineup designed for efficient, reliable, and high-performance heating and cooling systems. These products cater to various applications, from commercial to industrial, ensuring optimal climate control while maximizing energy efficiency.

The TP-PAC (Packaged Air Conditioner) is engineered for easy installation and maintenance, providing robust performance in diverse settings. This unit features high-efficiency compressors and advanced refrigerant management technology, which reduces energy consumption while maintaining superior cooling capabilities. Its modular design allows for easy scalability, enabling businesses to adjust their cooling capacity as required. Moreover, the TP-PAC is equipped with an intelligent control system that monitors performance metrics in real-time, facilitating proactive maintenance and reducing downtime.

The TP-NAC (Air-Cooled Chiller) incorporates cutting-edge technology to enhance its operational efficiency. This chiller utilizes advanced variable-speed compressor technology, which adapts to varying load conditions, significantly reducing energy costs. Its environmentally friendly refrigerant options comply with the latest regulations, further enhancing its sustainability profile. The TP-NAC is perfect for applications that demand precise temperature control, making it ideal for data centers and manufacturing facilities.

The TP-NHP (Heat Pump) is designed for year-round climate control, capable of both heating and cooling. This versatile unit employs a new-generation hot gas reheat system, allowing it to maintain comfortable indoor temperatures even during extreme weather conditions. Additionally, the TP-NHP features advanced zoning capabilities, permitting customized temperature settings for different areas of a building. This flexibility not only enhances comfort but also optimizes energy expenditure.

The TP-PHP (Packaged Heat Pump) combines the efficiency of the TP-NHP with a compact design perfect for urban installations where space is limited. It boasts quiet operation, making it suitable for residential areas and noise-sensitive environments. The unit's smart technology features enable users to monitor and control their systems remotely, providing convenience and peace of mind.

In summary, Carrier's TP-PAC, TP-NAC, TP-NHP, and TP-PHP represent the forefront of heating and cooling technology. With their emphasis on efficiency, reliability, and cutting-edge features, these units are well-equipped to meet the demands of modern climate control in diverse applications. By prioritizing energy efficiency and sustainable practices, Carrier continues to lead the way in the HVAC industry, ensuring comfortable and environmentally friendly solutions for all users.