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Manual Emerson 1HDEZ-1521

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  • Emerson 1HDEZ-1521 - page 1

    T ROUBLESHOOTING 1HDEZ-1 52 1 Emerson Inspire ™ Thermosta t/Interf ace Equipment Control Ins talla tion Ins tructions ...

  • Emerson 1HDEZ-1521 - page 2

    2 A TTENTION: MERCURY NO TICE This product does not contain mercury . However , this product may replace a product that contains mercury . Mercury and products containing mercury must not be discarded in household trash. Do not touch any spilled mercury . W earing non-absorbent gloves, clean up any spilled mercury and place in a sealed container . ...

  • Emerson 1HDEZ-1521 - page 3

    3 APPLICATIONS & SPECIFICATIONS Applications and Speci cations Electrical Rating: Input-Hardwire .............................. 20 to 30 VA C T erminal Load ............................... 1.0 A per terminal, 2.5 A maximum all terminals combined Setpoint Range ............................. 45° to 99°F (7° to 37°C) Di erential (Single ...

  • Emerson 1HDEZ-1521 - page 4

    4 INSTALLATION Installation Reduce installation time with a USB 1. Go to www .white-rodgers.com 2. Enter 1HDEZ-1521 in the Model Number Search  eld 3. Select the link for the USB download tool and follow instructions Upload pre-con gured thermostat settings for every job! Create custom messages for your rou- tine maintenance and service calls ...

  • Emerson 1HDEZ-1521 - page 5

    5 INSTALLATION Equipment Control Mount on wall or exterior surface of HV AC equipment. Control has four mounting holes. Wall anchors and screws are provided for mounting on dry- wall. Drill 3/16 " hole for drywall mounting. If mounting on equipment Do Not Mount inside HV AC equipment. Only mount on outside of HV AC equipment. Gas Furnace Equip ...

  • Emerson 1HDEZ-1521 - page 6

    6 INSTALLATION Equipment Control T erminals Operation / Function R ................................................ 24 V AC T ransformer RC .............................................. 24 V AC Cooling T ransformer* RH ............................................. 24 V AC Heating T ransformer* C ................................................ 24 ...

  • Emerson 1HDEZ-1521 - page 7

    7 INSTALLATION RJ- 11 Connection for Configuration Plug-In tool Status/Fault 7 -S egment LED Wiring to Thermostat R and C from HV AC terminal strip or system transformer Wiring to Sensor Wiring to indoor/outdoor equipment W/E W2 Y Y2 G O/B L HM HM2 DHM DHM2 RC RH R C LED push button switch + S - R 1 2 C Wiring to humidification equipment Wiring t ...

  • Emerson 1HDEZ-1521 - page 8

    8 INSTALLATION Installation Fig. 1 - T ypical Connection of a Single Stage or Multi- Stage System *Factory installed jumper between RH and RC SYSTEM R RH RC C W/E W 2 Y Y 2 G O/B L Single Stage 24 VA C P ower 24 VAC P ower for Heating 24 VA C P ower for Cooling 24 VA C Common Required Heat N/A Cool N/A Fan N/A System Monitor Multi Stage 24 VA C P o ...

  • Emerson 1HDEZ-1521 - page 9

    9 INSTALLATION Installation Wiring Guide for Equipment Accessories HM HM 2 Non-P owered Humidier T ransformer R C HM DRY RH HM 2 Fig. 3 - Humidier . HM terminal provides system 24V on call for humidication Fig. 4 - P owered Humidier . With HM DRY switch in HM 2 position, HM and HM 2 provide normally open dry contact for low voltage ( 24 ...

  • Emerson 1HDEZ-1521 - page 10

    10 INSTALLATION Installation Fig. 6 - System Dehumidication with variable speed blower . For systems where low speed requires connect to normally open 24 V powered DHM terminal for low speed connection on air handler/furnace ( 24 V removed on dehumidication call). Wiring Guide for Equipment Accessories DHM DHM 2 Low Speed Fan T ransformer R C ...

  • Emerson 1HDEZ-1521 - page 11

    11 INSTALLATION Installation Thermostat 1) Pull the thermostat o the base using tabs shown above. 2) Place base over wire hole in wall and mark mounting hole locations using base as a template. Drill mounting holes. 3) Fasten base snugly to wall using wall anchors and two mounting screws. Leveling is for appearance only and will not aect ther ...

  • Emerson 1HDEZ-1521 - page 12

    12 INSTALLATION Thermostat E quipment Control R 1 2 C 1 2 C R Data 1 Data 2 24 V AC (Common 24 VA C (Hot) Fig. 8 - Thermostat and Equipment Control Wiring RJ- 11 Connection for Configuration Plug-In tool Status/Fault 7 -S egment LED Wiring to Thermostat R and C from HV AC terminal strip or system transformer Wiring to Sensor Wiring to indoor/outdo ...

  • Emerson 1HDEZ-1521 - page 13

    13 AD V ANCED INSTALLER MENU From the Home screen press the and buttons at the same time for three seconds. Press Enter button to save any changes and display the previous menu or press Home to display the Home Screen. Items on the Advanced Installer Menu are:  Communicating Devices – select system conguration options  Fault Status ? ...

  • Emerson 1HDEZ-1521 - page 14

    14 AD V ANCED INSTALLER MENU Press button to select Setup . Communicating Devices This menu item will list each piece of system equipment. Press button to select start Communicating Devices . Press button to select Equipment Control . Advanced Installer Menu ...

  • Emerson 1HDEZ-1521 - page 15

    15 AD V ANCED INSTALLER MENU Indoor GA 2 – 2 stage gas furnace GA 1 – 1 stage gas furnace EL 2 – 2 stage electric heat EL 1 – 1 stage electric heat F AN – Indoor fan only Outdoor AC 2 – 2 stage A/C unit AC 1 – 1 stage A/C unit HP 2 – 2 stage heat pump HP 1 – 1 stage heat pump ACO – no outdoor equipment Rev Valve O – use if “ ...

  • Emerson 1HDEZ-1521 - page 16

    16 AD V ANCED INSTALLER MENU HUM OFF – No humidier equipment SYS – Humidier , powered using 24 V from system IND – Humidier , powered using independent 24 V source DHM OFF – No dehumidier equipment SYS – Dehumidier , powered using 24 V from system IND – Dehumidier , powered using independent 24 V source LEDs on the con ...

  • Emerson 1HDEZ-1521 - page 17

    17 AD V ANCED INSTALLER MENU USB Upload The USB Upload menu displays a list of thermostat parameters that can be loaded to the thermostat from a USB memory device. If the USB port detects a USB memory device, this menu will automatically display . In the USB Upload menu, select the item to upload and press to mark the item with a red box. After all ...

  • Emerson 1HDEZ-1521 - page 18

    18 AD V ANCED INSTALLER MENU Thermostat Summary Indicates the thermostat’ s software and version. Heat Pump Lockout ( outdoor sensor required) Available only for heat pump systems with indoor electric heat. This feature disables the heat pump and turns on auxiliary heat below the selected outdoor temperature. The temperature range is from 5° to ...

  • Emerson 1HDEZ-1521 - page 19

    19 AD V ANCED INSTALLER MENU Aux Lockout T emperature (outdoor sensor required) Available for heat pump systems. This setting is the maximum outdoor temperature that is acceptable for auxiliary heat to be used. Heat C ycle Rate Anticipation for heat cycle can be adjusted. Default setting is Medium . If you wish to have longer heat cycles, change to ...

  • Emerson 1HDEZ-1521 - page 20

    20 AD V ANCED INSTALLER MENU Installation T est P erforms an equipment test to verify proper installation and performance. Only operable on communicating systems with ClimateT alk™. Check System Operation Heating System 1. Press SYSTEM button until Heat is displayed. 2. Press to adjust thermostat setting 1° above room temperature. The heating sy ...

  • Emerson 1HDEZ-1521 - page 21

    21 MAIN MENU Navigating through your thermostat menus Y our thermostat features a simplied easy to understand menu structure. • Press to enter the Main Menu • Highlight a menu item using the or buttons • Enter the item by pressing • Use the or and the or to change menu items and settings • Press the Home button to display the Home Scre ...

  • Emerson 1HDEZ-1521 - page 22

    22 MAIN MENU Time and Day Display When turned on, the current time and day are displayed on the home screen. Outdoor T emp Display When turned on, the outdoor temperature is displayed on the home screen (for use with outdoor sensor only). Humidity Display When turned on, the sensed humidity is displayed on the home screen. Alert Info Detail When tu ...

  • Emerson 1HDEZ-1521 - page 23

    23 MAIN MENU Cooling Program After entering Heating Program, press to highlight “Switch to Cool Program” and press , or enter Cooling Program on the Main Menu . Factory Pre-Programmed Heating and Cooling Schedule Wake Up (Morning) Leave for Work (Day) Return Home (Evening) Go to Bed (Night) Heating Program 6:00 AM 70 o F 8:00 AM 62 o F 5:00 PM ...

  • Emerson 1HDEZ-1521 - page 24

    24 MAIN MENU Air Filter Maintenance / Service Reminder / Humidier Maintenance Default for each is O . When set to On , a maintenance reminder will appear on the home screen when the system has run for the selected amount of time. The length of time for the maintenance reminder can be selected to a setting of 1 to 12 months. Use or . to select ...

  • Emerson 1HDEZ-1521 - page 25

    25 MAIN MENU Beeper – Default is On . T urns audible prompt on to indicate when a button is pressed. C ycle Humidier – Default if O . This feature provides an option that reduces the water usage by up to 50% when a ow-through humidier is controlled by the thermostat. It is recommended for use on ow-through humidiers only . Whe ...

  • Emerson 1HDEZ-1521 - page 26

    26 MAIN MENU EMR (Energy Management Recovery) Default is On . With EMR selected On , the heating or cooling system will start early so the temperature in your home is at the desired temperature at the beginning of the program period. If set to O , the system will not start until the beginning of the program period. Maximum Heat Setpoint T emp. D ...

  • Emerson 1HDEZ-1521 - page 27

    27 MAIN MENU T emperature Display Adjust – Default is 0° . Y our thermostat was accurately calibrated at the factory . However , this option allows you to change the humidity or temperature displayed to match other thermostats in your home. Dehumidication Setpoint – Default is 95% . Setpoint is the percent humidity that the cooling system w ...

  • Emerson 1HDEZ-1521 - page 28

    28 T ROUBLESHOOTING Symptom P ossible Cause Correction Action No Heat/No Cool/ No Fan (common problems) 1. Blown fuse or tripped circuit breaker . 2. P ower switch to OFF . 3. Furnace blower compartment door or panel loose or not properly installed. 4. Loose connection to system. Replace fuse or reset break er . T urn switch to ON. Replace door pan ...

  • Emerson 1HDEZ-1521 - page 29

    29 T ROUBLESHOOTING Symptom P ossible Cause Correction Action No Cool 1. Cooling system requires service. Heat, Cool or Fan Runs Constantly 1. P ossible short in wiring. 2. P ossible short in thermostat. 3. P ossible short in heat/ cool/fan system. 4. F AN Switch set to Fan ON. Check each wire connection to verify they are not shorted or touching t ...

  • Emerson 1HDEZ-1521 - page 30

    30 T ROUBLESHOOTING Equipment Control Fault Codes Number Displayed in 7 Segment LED Comfort Alert Fault P T rip 1 Long Run Time 2 System Pressure T rip 3 Short C ycling 4 Locked R otor 5 Open Circuit 6 Open Start Circuit 7 Open Run Circuit 8 W elded Contactor 9 Low V oltage System Communication Codes E Communication Error C For 30 seconds after Com ...

  • Emerson 1HDEZ-1521 - page 31

    ...

  • Emerson 1HDEZ-1521 - page 32

    www. white-rodgers.com www.emersonclimate.com White-Rodgers is a business of Emerson Electric Co. The Emerson logo is a trademark and service mark of Emerson Electric Co. P ART NO. 37-7343 B Replaces 37-7343A 1312 ...

Manufacturer Emerson Category Thermostat

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A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Emerson 1HDEZ-1521 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Emerson 1HDEZ-1521.

A complete Emerson manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

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