Description

Honeywell T87N “The Round” mechanical thermostat is a 1 Heat / 1 Cool conventional or single-stage 1H/1C heat pump (without aux. heat) model. Iconic simplicity and reliability make this thermostat a perfect choice where ease of use is a primary requirement. This model is mercury-free, has manual heat/cool changeover lever and implements a battery-assisted power stealing method. Designed for use with gas, oil or electric heating systems w/ an air conditioner or heat pumps without auxiliary heat. Also works for cool-only systems. Note that since this is a mechanical thermostat, it has a 2-3°F accuracy (compared to 1°F in digital models) which is expected.

Features:

Simple to operate – simply dial the desired temperature
No buttons or programming and no battery to change
Positive “Off” switch
Rugged, time-proven design

Technical Specifications:

Programmability: Non-Programmable
Stages: 1 Heat / 1 Cool, 1 Heat / 1 Cool Heat Pump (Gas, oil, or electric heat with air conditioning / Warm air, hot water, high-efficiency furnaces, heat pumps, steam, gravity / Heat only / Heat only with fan / Cool only)
Fan Settings: Auto, On
Cycles per hour: 1, 3, 5, 9 (adjustable)
Changeover: Manual
Interface: Mechanical
Display: Analog
Mounting: Round
Color: White
Electrical Ratings: 24V (20-30 Vac, 0.02-1.00A)
Power Method: Battery-Assisted (built-in) Power Stealing – Hardwired
Terminal Designations: R, Rc, W, Y, G, O, B
Switch Type: Relay
Setting Temperature Range: 40°F – 90°F
Ambient conditions: 5 to 90% RH (non-condensing)
Dimensions: 4.06″ diameter x 1.75″ deep
Packaged Weight: 6.2 oz