Instruction/ maintenance manual of the product 1HDEZ-1521 Emerson
Go to page of 32
T ROUBLESHOOTING 1HDEZ-1 52 1 Emerson Inspire ™ Thermosta t/Interf ace Equipment Control Ins talla tion Ins tructions.
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 .
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 .
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.
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.
6 INSTALLATION Equipment Control T erminals Operation / Function R ................................................ 24 V AC T ransformer RC .............................................. 24 V AC Cooling T ransformer* RH ...............................
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 in.
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 .
9 INSTALLATION Installation Wiring Guide for Equipment Accessories HM HM 2 Non-P owered Humidier T ransformer R C HM DRY RH HM 2 Fig. 3 - Humidier .
10 INSTALLATION Installation Fig. 6 - System Dehumidication 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 dehumidication call).
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.
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 .
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.
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 .
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 .
16 AD V ANCED INSTALLER MENU HUM OFF – No humidier equipment SYS – Humidier , powered using 24 V from system IND – Humidier , powered using independent 24 V source DHM OFF – No dehumi.
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.
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.
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.
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.
21 MAIN MENU Navigating through your thermostat menus Y our thermostat features a simplied easy to understand menu structure. • Press to enter the Main Menu • Highlight a menu item using the or.
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.
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 .
24 MAIN MENU Air Filter Maintenance / Service Reminder / Humidier 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.
25 MAIN MENU Beeper – Default is On . T urns audible prompt on to indicate when a button is pressed. C ycle Humidier – Default if O . This feature provides an option that reduces the water usage by up to 50% when a ow-through humidier is controlled by the thermostat.
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.
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. Dehumidication Setpoint – Default is 95% .
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.
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.
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 .
.
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.
An important point after buying a device Emerson 1HDEZ-1521 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Emerson 1HDEZ-1521 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Emerson 1HDEZ-1521 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Emerson 1HDEZ-1521 you will learn all the available features of the product, as well as information on its operation. The information that you get Emerson 1HDEZ-1521 will certainly help you make a decision on the purchase.
If you already are a holder of Emerson 1HDEZ-1521, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Emerson 1HDEZ-1521.
However, one of the most important roles played by the user manual is to help in solving problems with Emerson 1HDEZ-1521. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Emerson 1HDEZ-1521 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
