Honeywell T87N1026 Support Question
Honeywell T87N1026 Support Question
Find answers below for this question about Honeywell T87N1026 - Low V Thermostat.Need a Honeywell T87N1026 manual? We have 1 online manual for this item!
Question posted by rhelectric on May 16th, 2016
Auto Function Issue
The t-stat won't turn on the compressor in auto and the temp driven down to 60 degrees. When I unplug the t-stat to check wiring, I can force the compressor on by shorting the RC terminal to the Y terminal and the fan can be forced on by shorting the RC terminal to the G terminal. I believe the switch for the auto function is not closing and the thermostat is not being put in the circuit. Is there an issue I am missing or do I in fact have a bad t-stat?
Current Answers
Related Honeywell T87N1026 Manual Pages
Owners Manual - Page 1
Failure to follow these instructions carefully. Registered Trademark.
This thermostat contains a Lithium battery which may apply,
See www.dtsc.../T87K
The Round®
This manual covers the following models: • Heat-only T87K
Pre-installation checklist
Check package contents:
• Thermostat • Wall anchors & screws (2 each)
• Heat and Cool T87N
Before you begin, make ...
Owners Manual - Page 2
...8226; 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 ...• Voltage: 20-30 VAC • Running current: 0.02-1.0A
Installation tips
Install the thermostat about 5 feet (1.5 m) above the floor in corners • Hot or cold air from ducts...
Owners Manual - Page 3
Pull wire through wire hole. Check level if desired.
O Heat pump changeover valve energized in place between R & Rc.
R Heating power. Connect to secondary side of
heating system transformer. Connect to connect terminals W and Y.
R W Y
NOTES
R & Rc terminals (T87N) In single-transformer system, leave metal jumper in cooling.
Wiring
1. Y Compressor contactor. wire hot-...
Owners Manual - Page 4
E: Change the switch to this factory-set position (for systems that control the fan in a call for heat, if a fan wire is for systems that allow the thermostat to the proper setting for heat). Thermostat mounting
Base
Heating System
Switch 1
Steam or gravity (1 CPH)
On
High efficiency warm air
Off
(90%+), hot water, or
heat pump...
Owners Manual - Page 5
... OTHER FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of purchase, to state. Current indoor temperature. Fan switch (T87N)
• On: Fan runs continuously. • Auto: Fan runs only when
heating or cooling system is determined to you .
Customer Care will make the determination whether the product should be...
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