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