Honeywell Y9420S Thermostat Manuals

Honeywell Y9420S Thermostat Manuals

Manuals and User Guides for Honeywell Y9420S Thermostat. We have 1 Honeywell Y9420S Thermostat manual available for free PDF download: User Manual

Honeywell Y9420S User Manual

Honeywell Y9420S User Manual (34 pages)

Brand: Honeywell | Category: Thermostat | Size: 1.21 MB

Table of Contents

Table of Contents
3
Control of Your System

4
Getting Started with Your St9420C

6
- Step 1: Setting the Date & Time
  6
- Step 2: Running a Built-In Programme
  7
Programming Your St9420C

8
Operating Your St9420C

12
Fine Tuning Your St9420C

15
Boiler Service Reminder

18
- Countdown to Service / When Service Is Due
  18
- Shut-Down
  19
Operating Your Dt92E

19
- Inquiring about the Set Temperature / Adjusting the Set Temperature
  19
- Switching off / Display Updates / Heating Indicator / Frost Protection
  20
Dt92E Operating Indicators

21
- Low Battery Indicator / Battery Replacement / RF Communications Indicator / Lockout
  21
Dt92E Energy Saving Eco Feature

22
Fine Tuning Your Dt92E

23
- Changing the DT92E Installer Parameters
  23
Operating Your Cs92A Hot Water Thermostat

25
- Basic Operation / Battery Replacement / Error Indications
  25
- Battery Replacement
  25
Operating Your Bdr91T Relay Box (if Installed)

26
- BDR91T Controls Layout / Automatic Operation
  26
- Temporary Manual Override / Loss of Wireless Communications
  26
Faq and Troubleshooting

27
- Frequently Asked Questions
  27
- Troubleshooting Guide
  29
Configuration & Service Data

34
- Configuration Data (to be Completed by Installer)
  34

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