Lennox 81M27 - Manual

Lennox 81M27

Lennox 81M27 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – IMPORTANT SAFETY INFORMATION; • DO NOT USE WITH COMMERCIAL EQUIPMENT.
  • Page 3 – TABLE OF CONTENTS
  • Page 4 – How do I change the time of day and day of the week?; From the main screen press MENU.; MENU; BACK; DAY
  • Page 5 – How do I turn on the heating or cooling cycles?; MORE; HEAT
  • Page 6 – ON
  • Page 7 – How do I temporarily change the temperature?; NOTE: Temporary temperature changes override; SET TEMPERATURE AT
  • Page 8 – Can I set a temporary adjustment for longer than 3 hours?; Press the DOWN button to highlight TEMPORARY HOLD. Press SELECT.
  • Page 10 – How do I set the Vacation Mode?
  • Page 11 – How do I program my thermostat?
  • Page 13 – How do I copy one day’s program to another day?; COPY; FRIDAY
  • Page 14 – This thermostat can be set for 2 or 4 events.; How do I know what program is right for me?; The thermostat is factory set with the US EPA E; can change these to suit your lifestyle.
  • Page 15 – HUMIDIFY
  • Page 16 – DEW POINT ADJ
  • Page 17 – What are the USER settings?
  • Page 19 – More Detailed Information on the USER SETTINGS; stage differential plus the 2; stage differential, the second stage of heating (or
  • Page 21 – What are the INSTALLER settings?
  • Page 23 – to turn on to reach the desired temperature.
  • Page 24 – When would I need to change the INSTALLER settings?; AIR EXPERTS
  • Page 25 – The lights indicate different operations of the HVAC equipment.
  • Page 27 – My energy bills are too high. Is there anything I can do?
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Menu Driven Display

Fully Programmable

24 VAC with Worry-Free
Memory Storage

1 Heat / 1 Cool, 2 Heat / 2 Cool
and Heat Pump Models

Five Year Warranty

U s e r ' s M a nu a l

5 0 4 , 6 8 4 M

1 1 0 - 1 0 5 2 F

D E L U X E

P R O G R A M M A B L E

T H E R M O S TAT S

w i t h H u m i d i t y C o n t r o l

81M26
81M27
81M28

110-1052F 5/12/05 11:59 AM Page 1

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Summary

Page 2 - IMPORTANT SAFETY INFORMATION; • DO NOT USE WITH COMMERCIAL EQUIPMENT.

IMPORTANT SAFETY INFORMATION WARNING: • DO NOT USE WITH COMMERCIAL EQUIPMENT. • Always turn off power at the main power source by unscrewing fuse or switching circuit breaker to the off position before installing, removing, or cleaning this thermostat. • Read all of the information in this manual be...

Page 3 - TABLE OF CONTENTS

TABLE OF CONTENTS How do I change the time of day and day of the week? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 4How do I turn on the heating or cooling cycles? . . . . . . . . . . . . . . . . . ...

Page 4 - How do I change the time of day and day of the week?; From the main screen press MENU.; MENU; BACK; DAY

4 How do I change the time of day and day of the week? From the main screen press MENU. Use the UP or DOWN arrows to highlight DAY/TIME. Press SELECT. Use the UP or DOWN arrow to highlight DAY, HOURor MINUTES. Press SET. Use the UP or DOWN arrow to scroll throughthe days of the week, hours or minute...

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