Owner's Manual
Page 1
...: ELECTRICAL HAZARD Can cause electrical shock or equipment damage. Registered Trademark. All rights reserved. 69-1958EFS-1 Copyright © 2007 Honeywell International Inc. MERCURY NOTICE If this product is replacing a control that contains mercury in a sealed tube, do not place the...1 Mode d'emploi Français : Page 6 Manual de Uso Español: Página 11 T87N/T87K The Round® This manual covers the following models: • Heat-only T87K Pre-installation checklist Check package contents: • Thermostat • Wall anchors & screws (2 each) •...
...: ELECTRICAL HAZARD Can cause electrical shock or equipment damage. Registered Trademark. All rights reserved. 69-1958EFS-1 Copyright © 2007 Honeywell International Inc. MERCURY NOTICE If this product is replacing a control that contains mercury in a sealed tube, do not place the...1 Mode d'emploi Français : Page 6 Manual de Uso Español: Página 11 T87N/T87K The Round® This manual covers the following models: • Heat-only T87K Pre-installation checklist Check package contents: • Thermostat • Wall anchors & screws (2 each) •...
Owner's Manual
Page 2
... thermostat provides electronic control of: • 24 VAC heating systems (T87K) • 24 VAC heating and cooling systems (T87N) System Types • Gas or oil heat (T87K) • Gas, oil, or electric heat with air conditioning (T87N) • Warm air, hot water, high-efficiency furnaces, heat ...pumps, steam, gravity • Heat only • Heat only with fan (T87N) • Heat only, 2-wire, and 3-wire hot-water valve (power open and close valves) (T87K) • Cool only (T87N) Fan Settings (T87N) • Auto, On Specifications Temperature Range • 40° to 90°F...
... thermostat provides electronic control of: • 24 VAC heating systems (T87K) • 24 VAC heating and cooling systems (T87N) System Types • Gas or oil heat (T87K) • Gas, oil, or electric heat with air conditioning (T87N) • Warm air, hot water, high-efficiency furnaces, heat ...pumps, steam, gravity • Heat only • Heat only with fan (T87N) • Heat only, 2-wire, and 3-wire hot-water valve (power open and close valves) (T87K) • Cool only (T87N) Fan Settings (T87N) • Auto, On Specifications Temperature Range • 40° to 90°F...
Owner's Manual
Page 3
... R Heating power. Y This terminal can be used for plaster) and tap in place between R & Rc. Y Compressor contactor. Heat pump systems (T87N) If wiring to a heat pump, use a small piece of wire (not supplied) to secondary side of heating system transformer. Loosen screw terminals, insert wires... into the wall opening with nonflammable insulation to prevent drafts from affecting thermostat operation. Terminal Designations-T87K W Heat relay. English: Page 1 • Français : Page 6 • Español: Página 11 Wallplate installation ...
... R Heating power. Y This terminal can be used for plaster) and tap in place between R & Rc. Y Compressor contactor. Heat pump systems (T87N) If wiring to a heat pump, use a small piece of wire (not supplied) to secondary side of heating system transformer. Loosen screw terminals, insert wires... into the wall opening with nonflammable insulation to prevent drafts from affecting thermostat operation. Terminal Designations-T87K W Heat relay. English: Page 1 • Français : Page 6 • Español: Página 11 Wallplate installation ...
Owner's Manual
Page 4
Thermostat T87N/T87K • Owner's Manual Fan operation settings (T87N) Fan operation settings: F: For gas or oil heating systems, leave the fan operation switch in this factory-set position (for systems that allow the thermostat ...
Thermostat T87N/T87K • Owner's Manual Fan operation settings (T87N) Fan operation settings: F: For gas or oil heating systems, leave the fan operation switch in this factory-set position (for systems that allow the thermostat ...
Owner's Manual
Page 5
.... This warranty does not cover removal or reinstallation costs. THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. If you may not apply to set desired indoor temperature. Fan switch (T87N) • On: Fan runs continuously. • Auto: Fan runs only when heating or cooling... system is shown by Honeywell that the defect or malfunction was caused by the consumer. This warranty shall not ...
.... This warranty does not cover removal or reinstallation costs. THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. If you may not apply to set desired indoor temperature. Fan switch (T87N) • On: Fan runs continuously. • Auto: Fan runs only when heating or cooling... system is shown by Honeywell that the defect or malfunction was caused by the consumer. This warranty shall not ...