Honeywell CT87N Thermostat Instruction Manual

Name: Honeywell CT87N Thermostat Instruction Manual
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Honeywell CT87N Thermostat Instruction Manual

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📖 Manual 📋 Specifications 📝 Summary 💬 FAQs

Honeywell CT87N Thermostat

User Manual

6 pages

Installation Guide

5 pages

Honeywell CT87N Thermostat Instructions

Here we offer the Honeywell CT87N Thermostat manual completely free and in English. We have cataloged this manual in the Thermostats section on Manualverse, and it has been rated by 1 users with an average rating of 5. If you have any specific questions about Honeywell CT87N Thermostat, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.

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Honeywell CT87N Thermostat Specifications

Feature/Specification	Detail
Model	CT87N (The Round®)
System Compatibility	24 Vac Heating and Cooling Systems
Power Source	System power; contains a Lithium battery (Perchlorate material)
Fan Operation Switch Settings	F (Gas/Oil Heating), E (Heat Pump/Electric Heat)
System Switch Settings	Cool, Heat, Off
Fan Switch Settings	On (Continuous), Auto (Runs with system)
Cycle Rate (Heating)	Steam or Gravity: On/On; High Efficiency Warm Air/Hot Water/Heat Pump: Off/On; Gas or Oil Warm Air: Off/Off (Factory); Electric Warm Air: On/Off
Cooling Temperature Limit	Do not operate below 50°F (10°C) outdoor temperature
Wiring Terminals (CT87N)	R, Rc, O, B, G, W, Y (C, X, or specific B terminals are not used)
Heat Anticipator Settings	Steam: 1.2; Hot Water/High Efficiency Hot Air: 0.8; Standard Hot Air: 0.4; Electric Heat: 0.3
Warranty	1-year limited warranty
Optional Accessories	Decorative Cover Plate (50000066), Range Stops (50010944-001)

Honeywell CT87N Thermostat Details

The Honeywell CT87N Thermostat, an iconic "The Round®" series member, provides reliable temperature control for 24 Vac heating and cooling systems. Its user-friendly design supports straightforward installation and operation. Each package includes the thermostat, a coverplate, wall anchors, screws, and wire labels, providing essential components for immediate setup.

Before installation, gather common tools: Phillips and pocket screwdrivers, hammer, pencil, and a drill with appropriate bits. A level is optional. Crucially, turn off power to the HVAC system at the furnace or breaker panel before starting work, ensuring safety for both installer and equipment.

The CT87N's installation is accessible. Begin by carefully removing the old thermostat and labeling each wire with provided adhesive tags according to terminal letters, not wire colors. This prevents confusion. Old thermostats containing mercury require proper disposal through local waste management authorities.

Mounting involves pulling wires through the base, marking screw positions, and drilling for anchors. An optional cover plate hides old thermostat marks. Secure the base, then connect wires to matching terminals. If both R and Rc terminals are used, remove the metal jumper. Specific instructions cover heat pump wiring and unused 'C', 'X', or certain 'B' wires.

Following wiring, set the fan operation switch and cycle rate switches according to your system type. The fan switch ('F' for gas/oil, 'E' for heat pump/electric) ensures correct fan control. Cycle rate switches fine-tune heating cycles for optimal efficiency and comfort, with specific settings for various warm air, hot water, or steam systems.

Operating the thermostat is intuitive. The system switch selects "Cool," "Heat," or "Off." The fan switch provides "On" for continuous airflow or "Auto," where the fan runs only with active heating or cooling. Temperature adjustment is simply rotating the outer dial to your desired indoor setting.

A critical caution for the CT87N: do not run the cooling system when outdoor temperatures drop below 50°F (10°C) to avoid equipment damage. Honeywell offers a 1-year limited warranty, covering workmanship or material defects under normal use. Details for repair or replacement are clearly outlined, including customer care contact.

The manual highlights optional accessories like a decorative cover plate (model 50000066) for aesthetics or electrical box mounting. Range stops (model 50010944-001) are also available, offering homeowners a practical solution to limit minimum and maximum temperature settings, providing enhanced control over energy usage and comfort.

Frequently Asked Questions (FAQs)

Can't find the answer you need? Here are some frequently asked questions about the Honeywell CT87N Thermostat, and we answer them below.

What HVAC systems is the Honeywell CT87N Thermostat compatible with?

The CT87N is designed for 24 Vac heating and cooling systems.

What do the 'F' and 'E' settings on the fan operation switch mean?

The 'F' setting is for gas or oil heating systems (where the system controls the fan), while 'E' is for heat pump or electric heat systems (where the thermostat controls the fan).

How do I set the cycle rate on my CT87N thermostat?

You move the internal cycle rate switches based on your heating system: Steam or gravity (On/On), High efficiency warm air/hot water/heat pump (Off/On), Gas or oil warm air (Off/Off, factory setting), and Electric warm air (On/Off).

Is there a minimum outdoor temperature for operating the cooling system?

Yes, it is strongly cautioned not to operate the cooling system when the outdoor temperature is below 50°F (10°C) to prevent equipment damage.

What should I do if my old thermostat contained mercury?

If your old thermostat contains mercury, do not dispose of it in regular trash. Contact your local waste management authority for proper disposal instructions.

What tools are generally needed for installing the CT87N?

You will typically need No. 2 Phillips and small pocket screwdrivers, a hammer, a pencil, a drill with a 3/16” bit for drywall or 7/32” for plaster, and optionally a level.

What is the warranty period for the Honeywell CT87N?

The CT87N comes with a 1-year limited warranty, covering defects in workmanship or materials under normal use and service from the date of purchase.

Can I limit the temperature range settings on the thermostat?

Yes, optional range stops (model 50010944-001) are available and can be installed on the back of the thermostat to limit the minimum and maximum temperature settings.

What is the purpose of the Fan switch on the CT87N?

The Fan switch has two settings: 'On' makes the fan run continuously, while 'Auto' ensures the fan only runs when the heating or cooling system is actively engaged.

What should I do if my old thermostat has too many wires (e.g., 7 or more for CT87N)?

If your old thermostat for a CT87N has 7 or more wires (not counting terminals C or C1), you may have purchased the wrong replacement thermostat. It is recommended to stop and call Honeywell Customer Care for advice.

Is a cover plate included with the CT87N, and what is its function?

Yes, a cover plate is included. It is used to cover up any marks left on the wall by the old thermostat and can also be used for mounting onto an electrical box if necessary.

Are there any specific wiring instructions for heat pump systems?

For heat pump systems, if you have both 'O' and 'B' wires, you should only connect the 'O' wire. The 'B' wire should be wrapped with electrical tape and not used.