Emerson Inspire 1HDEZ-1521 User manual

TROUBLESHOOTING
1HDEZ-1521
Emerson Inspire™
Thermostat/Interface Equipment Control
Installation Instructions

2
ATTENTION: MERCURY NOTICE
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.Wearing non-absorbent
gloves, clean up any spilled mercury and place in a sealed container. For
proper disposal of a product containing mercury or a sealed container of
spilled mercury, place it in a suitable shipping container. Refer to www.
thermostat-recycle.org for location to send product containing mercury.
FAILURETO READAND FOLLOWALL INSTRUCTIONSCAREFULLY BEFORE
INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL
INJURY AND/OR PROPERTY DAMAGE.
Thermostat installation and all components of the control system shall
conform to Class II circuits per the NEC code.
WARNING
!
To prevent electrical shock and/or equipment damage, disconnect
electric power to system at main fuse or circuit breaker box until
installation is complete.
CAUTION
!
Index Page
Applications and Specications 3
Installation 4
Advanced Installer Menu 12
Main Menu 20
Troubleshooting 26

3
APPLICATIONS
& SPECIFICATIONS
Applications and Speci cations
Electrical Rating:
Input-Hardwire.............................. 20 to 30 VAC
Terminal Load ............................... 1.0A per terminal, 2.5A maximum
all terminals combined
Setpoint Range ............................. 45° to 99°F (7° to 37°C)
Di erential (Single Stage) ............. Heat 0.6°F; Cool 1.2°F
Di erential (Multi-Stage) .............. Heat 0.6°F; Cool 1.2°F
Di erential (Heat Pump) ............... Heat 1.2°F; Cool 1.2°F
Operating Ambient ....................... 32°F to +105°F (0° to +41°C)
Operating Humidity ...................... 90% non-condensing max.
Shipping Temperature Range ........ -40° to +150°F (-40° to +65°C)
Dimensions Interface .................... 3-1/4"H x 6-1/8"W x 5/8"D
Dimensions Control....................... 5-1/2"H x 5-3/4"W x 1-1/2"D
Con guration
Options
Applications Maximum
Stages
Single Stage Gas, Oil, Electric, Heat Only, Cool Only or
Heat Cool Systems 1/1
Multi Stage Gas, Oil, Electric, Heat Only, Cool Only or
Heat Cool Systems 2/2
Heat Pump Single or Two Compressor Systems with up
to 2Stages of Aux / Em Heat 4/2
Heat Pump
with Dual Fuel
Single or Two Compressor Systems with up
to 2Stages of Fossil fuel Heat 4/2

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!

5
INSTALLATION
Equipment Control
Mount on wall or exterior surface of HVAC 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 HVAC equipment.
Only mount on outside of HVAC equipment.
Gas Furnace Equipment
Retur
n Air Duct
Supply
Duct
Equipment Control
Module
Installation

6
INSTALLATION
Equipment Control Terminals Operation / Function
R................................................ 24 VAC Transformer
RC.............................................. 24 VAC Cooling Transformer*
RH ............................................. 24 VAC Heating Transformer*
C................................................ 24 V Transformer Common
W/E............................................ Heating Stage 1 HP Aux/Em Heat Stage 1
W2............................................. Heating Stage 2 HP Aux/Em Heat Stage 2
Y................................................ Compressor Stage 1
Y2.............................................. Compressor Stage 2
G................................................ Fan Relay
L Terminal .................................. System Monitor Compatible with
Comfort Alert Diagnostics
O/B Terminal .............................. Changeover Relay Heat Pump
DHM .......................................... Dehumidication Relay / Connection
DHM2........................................ Dehumidication Relay / Connection
HM............................................. Humidication Relay / Connection
HM2........................................... Humidication Relay / Connection
R................................................ 24 VAC to Interface
1................................................. Data to/from Interface
2................................................. Data to/from Interface
C................................................ 24 VAC Common to Interface
RJ11 ........................................... Field conguration hook-up with RJ11
equipped conguration tool
+................................................. Voltage to Outdoor Sensor
S................................................ Outdoor Sensor Temperature Signal
-................................................. Voltage to Outdoor Sensor
Installation
*For 2 transformer systems, cut and tape o one transformer. If transformer
safety circuits are only in one of the systems, remove the transformer of the
system with NO safety circuits. If required, replace remaining transformer
with a 75 VA Class II transformer. After disconnecting one transformer, the
two commons must be jumpered together.

7
INSTALLATION
RJ-11 Connection for
Configuration Plug-In tool
Status/Fault
7-Segment LED
Wiring to
Thermostat
R and C from HVAC
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 to
dehumidification
equipment
DHM switch*
HM switch*
* To use the HVAC transformer to power humidication/dehumidication
switch HM/DHM switches to “SYS” position:
– Connect humidier to HM
– Connect dehumidier to DHM
If humidier or dehumidier have a separate transformer, switch HM or
DHM switch to “DRY” position:
– Connect humidier to HM and HM2 (or)
– Connect dehumidier to DHM and DHM2
Installation

8
INSTALLATION
Installation
Fig. 1- Typical Connection of a Single Stage or Multi-Stage System
*Factory installed jumper between RH and RC
SYSTEM R RH RC C W/E W2YY2G O/B L
Single
Stage
24 VAC
Power
24 VAC
Power for
Heating
24 VAC
Power
for Cooling 24 VAC
Common
Required
Heat N/A Cool N/A Fan N/A System
Monitor
Multi
Stage
24 VAC
Power
24 VAC
Power
24 VAC
Power
Heat
mode
1
st
stage
Heat
mode
2
nd
stage
Cool
mode
1
st
stage
Cool
mode
2
nd
stage
CLASS II
Transformer
120 VAC
NEUTRAL
24 VAC
HOT
*
SYSTEM R RH RC C W/E W2YY2G O/B L
Heat
Pump
24 VAC
Power
24 VAC
Power for
Heating
24 VAC
Power
for Cooling 24 VAC
Common
Required
Aux /
Em
1
st
Stage
Aux /
Em
2
nd
Stage
1
st
Stage
Com-
pres-
sor
2
nd
Stage
Com-
pres-
sor
Fan Change-
over
Valve
System
Monitor
CLASS II
Transformer
120 VAC
NEUTRAL
24 VAC
HOT
*
Fig. 2- Typical Connection of Heat Pump System up to 4Stages
Heat/2Stages Cool
*Factory installed jumper between RH and RC
Note: Dual fuel systems W/E is fossil fuel 1st stage and W2is fossil fuel 2nd stage.

9
INSTALLATION
Installation
Wiring Guide for Equipment Accessories
HM
HM2
Non-Powered
Humidier
Transformer
R
C
HM DRY
RH HM2
Fig. 3 - Humidier. HM terminal provides system 24V on call for humidication
Fig. 4 - Powered Humidier. With HM DRY switch in HM2position, HM
and HM2provide normally open dry contact for low voltage (24V) powered
humidier connection.
HM
HM2
Non-Powered
Humidier
HM DRY
RH HM2
Fig. 5 - Powered Dehumidier. With DHM DRY switch in DHM2position,
DHM and DHM2provide normally open dry contact for low voltage (24V)
whole house powered dehumidier connection.
DHM
DHM2
Powered
Dehumidier
DHM DRY
RH DHM2

10
INSTALLATION
Installation
Fig. 6 - System Dehumidication with variable speed blower. For systems
where low speed requires connect to normally open 24V powered DHM
terminal for low speed connection on air handler/furnace (24V removed
on dehumidication call).
Wiring Guide for Equipment Accessories
DHM
DHM2
Low Speed
Fan
Transformer
R
C
DHM DRY
RH DHM2
Fig. 7 - System Dehumidication with variable speed blower. For systems
where low speed requires system 24V on dehumidification connect 24V
to DHM2with DHM DRY switch in DHM2position and connect DHM
to low speed connection on air handler/ furnace.
DHM
DHM2
Low Speed
Fan
DHM DRY
RH DHM2

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 thermostat operation.
4) Connect wires to terminal block on base.
IMPORTANT:Wiring from equipment control should correspond with
wiring to thermostat. (see Fig. 8)
5) Carefully line the thermostat up with the base and snap into place.
Tabs

12
INSTALLATION
Thermostat Equipment Control
R
1
2
C
1
2
C
R
Data 1
Data 2
24 VAC (Common
24 VAC
(Hot)
Fig. 8- Thermostat and Equipment Control Wiring
RJ-11 Connection for
Configuration Plug-In tool
Status/Fault
7-Segment LED
Wiring to
Thermostat
R and C from HVAC
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 to
dehumidification
equipment
DHM switch*
HM switch*
Equipment ControlThermostat Base
Power System
Turn on AC power to the system. As the
equipment module is found, the display
will show “Equipment Control” found.
If the system continues searching after
a couple of minutes, check system
wiring.
Installation

13
ADVANCED
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 – indicates equipment faults that have been detected
USB Upload – select thermostat settings to be uploaded from a
pre-loaded USB
Thermostat Summary – indicates software version of thermostat
 Heat Pump Lockout* – disable heat pump below a selectable temperature
(when using electric Aux heat)
Dual Fuel Setpoint* – disable heat pump below a selectable temperature
(when using fossil fuel Aux heat – dual fuel)
Aux Lockout* – disable Aux heat above a selectable temperature
Heat Cycle Rate – adjust the duration for a call for heating
Cool Cycle Rate – adjust the duration for a call for cooling
Humidity Display Adjust – o-set the humidity that is displayed
Installation Test – equipment test for communicating systems only
*May or may not appear in the list depending on the configuration of
the system
IMPORTANT: Allow up to 5minutes for menu options to become available
after changing settings.
Advanced Installer Menu

14
ADVANCED
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

15
ADVANCED
INSTALLER MENU
Indoor
GA2– 2stage gas furnace
GA1– 1stage gas furnace
EL2 – 2stage electric heat
EL1– 1stage electric heat
FAN – Indoor fan only
Outdoor
AC2– 2stage A/C unit
AC1– 1stage A/C unit
HP2 – 2stage heat pump
HP1– 1stage heat pump
ACO – no outdoor equipment
Rev Valve
O – use if “O” wire is available (energize the reversing valve in cooling)
B – use if “B” wire is available (energize the reversing valve in heang)
Use or to navigate and press
button to select the equipment to be
congured.
Options for each type of equipment are the following:
Advanced Installer Menu

16
ADVANCED
INSTALLER MENU
HUM
OFF – No humidier equipment
SYS – Humidier, powered using 24V from system
IND – Humidier, powered using independent 24V source
DHM
OFF – No dehumidier equipment
SYS – Dehumidier, powered using 24V from system
IND – Dehumidier, powered using independent 24V source
LEDs on the control indicate the thermostat conguration. Remove control
cover to view LEDs. To view LEDs with cover installed, break o tab on inside
of cover.
LED O implies functionality is disabled at the thermostat
LED ashing implies corresponding function is active
W/E
W2
Y
Y2
G
O/B
HM
DHM
RJ-11 Connection for
Configuration Plug-In tool
System
7-Segment
LED for Comfort
Alert and
Communication
Codes
Fig. 9– LED locations
Indoor GAS ELEC
W/E
W2
G
Outdoor AC HP
Y
Y2
Humidication HM2RH
HM
LED Color
Orange Green
Rev Valve B O
O/B
Dehumication DHM2RH
DHM
Advanced Installer Menu

17
ADVANCED
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 items to upload
are selected, press the Upload button.
If the thermostat does not nd informa-
tion when the Upload button is pressed,
the display will indicate, “Invalid Data
Found. Installation Failed!”
Once the upload is accomplished, the
display will indicate “Successfully
Installed” for 3seconds then will
display the menu or mode prior to
entering the USB upload menu.
Faults Status
This menu item lists current equipment
fault conditions. If no faults are
detected, this screen will show nothing.
(See “System Fault Codes” on page 28.)
Advanced Installer Menu
To use the USB Upload feature, go to www.white-rodgers.com, enter
1HDEZ-1521 in the Model Number Search eld and select the USB
download link.

18
ADVANCED
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 50°F.
Dual Fuel Setpoint (outdoor sensor required)
If the heating system is a heat pump
with auxiliary gas heat and the outdoor
sensor is installed, the thermostat
can monitor outside temperature to
determine when to begin using the gas
heat system and stop the compressor.
This temperature is the Dual Fuel
temperature setpoint. The Dual Fuel
feature eliminates the need for a fossil
fuel kit.
The display will indicate 5° (default). The temperature can be adjusted to
a value between 5° to 50°. The temperature will appear as °F unless °C is
selected for temperature display.
As long as the outside temperature is above the Dual Fuel Setpoint, the
compressor will operate. When the temperature drops below the setting the
thermostat will start the gas heat and shut o the compressor.
Advanced Installer Menu

19
ADVANCED
INSTALLER MENU
Aux Lockout Temperature (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 Cycle Rate
Anticipation for heat cycle can be
adjusted. Default setting is Medium.
If you wish to have longer heat cycles,
change to Slow. For shorter heat cycles
change to Fast.
Cool Cycle Rate
Anticipation for cool cycle can be
adjusted. Default setting is Medium.
If you wish to have longer cool cycles,
change to Slow. For shorter cool cycles
change to Fast.
Humidity Display Adjust
Press or to oset the displayed
humidity from the actual.
Advanced Installer Menu

20
ADVANCED
INSTALLER MENU
Installation Test
Performs an equipment test to verify
proper installation and performance.
Only operable on communicating
systems with ClimateTalk™.
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
system should begin to operate and the display will indicate Heat On.
3. If the heating system has additional stages, adjust the thermostat setting
to 3°F (2°C) or more above the actual temperature. The next heat stage
will energize.
4. Press to adjust thermostat setting below room temperature. The
heating system should stop operating.
Cooling System
1. Press SYSTEM button until COOL is displayed.
2. Press to adjust thermostat setting below room temperature. The cooling
system should begin to operate and the display will indicate Cool On.
3. If the cooling system has additional stages, adjust the temperature to 3°F
(2°C) or more below the actual. The second cool stage will energize within
10 seconds.
4. Press to adjust thermostat setting above room temperature. The
cooling system should stop operating.
Fan Operation
1. Press FAN button until Fan On is displayed. The fan should begin to operate.
2. Press FAN button to change the display to Fan Auto. The fan should stop
operating as long as there is no call for heat or cool.
Advanced Installer Menu