ClimateMaster ATC32U01 iGate Installation Manual - User Manual

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Installation Manual

97B0055N03

Rev.: 2/4/13

ATC32U01 iGate

™

Communicating,

Programmable Thermostat

Table of Contents

Section Title

Page

Safety/Installation

Considerations 3

1.0

User Menu Settings

2.0

Installer Menu Settings

2.1

Installer Menu Settings Access

2.2

Thermostat

Confi guration

3.0 System

Confi guration

3.1

Airfl ow Selection

3.2

Option

Selection

3.3

Unit

Confi guration

3.4

Pump Confi guration

3.5

Valve

Confi guration

3.6

Multi-Unit

Confi guration

4.0 Accessory

Confi guration

4.1

Air Filter

4.2

Humidifi er

4.3

UV Lamp

Caution:

These instructions are intended to be used by the installer or service personnel. End users are NOT advised to change or
modify any of these settings. Doing so may cause the equipment to stop working properly and/or may void the warranty on
both the thermostat and the equipment.

Section Title

Page

4.4

Air Cleaner

5.0

Input Dealer Information

6.0 Humidity

Confi guration

7.0 Temperature

Algorithm

8.0

Demand Reduction Confi guration 11

9.0 Service

Mode

9.1

Manual

Operation

9.2

Control

Diagnostics

9.3

Dipswitch

Confi guration

9.4

Fault

History

9.5

Clear Fault History

9.6

Multi-Unit

Diagnostics

9.7

Multi-Unit Fault Information

10.0 Restore

Defaults

11.0 Revision

History

This page was intentionally left blank.

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ClimateMaster’s ATC32U** Communicating, Programmable
Thermostat is the perfect compliment to a ClimateMaster
Geothermal Heat Pump System and represents a signifi cant
advancement in thermostat communicating technology. For
homeowners, the ATC32U** provides highly customizable cli-
mate control features designed to maximize comfort and re-
duce the amount of energy consumed by the ClimateMaster
Geothermal Heat Pump System. For dealers, it represents
a signifi cant, industry leading advancement in confi guration,
monitoring and diagnostics from the thermostat. Please read
the following instructions carefully to maximize the comfort
and cost-saving potential of your ClimateMaster Geothermal
Heat Pump System.

SAFETY CONSIDERATIONS

Improper wiring or installation may damage thermostat. Wir-
ing must conform to local and national electrical codes

WARNING!

WARNING! Before installing thermostat, turn off all
power to unit. There may be more than one power
disconnect. Electrical shock can cause personal
injury or death.

INSTALLATION CONSIDERATIONS

The thermostat requires no batteries. The thermostat is not
a power stealing device and MUST have both R and C termi-
nals connected. See Diagram 1.

INSTALLATION
I. THERMOSTAT

LOCATION

Thermostat should be mounted:

•

Approximately 5 ft. (1.5m) above fl oor.

•

Close to or in a frequently used room, preferably on an
inside partitioning wall.

•

On a section of wall without pipes or duct work.

Thermostat should NOT be mounted:

•

Close to a window, on an outside wall, or next to a
door leading to the outside.

•

Exposed to direct light and heat from a lamp, sun,
fi replace, or other temperature-radiating object which
may cause a false reading.

•

Close to or in direct airfl ow from supply registers.

•

In areas with poor air circulation, such as behind a
door or in an alcove.

II. THERMOSTAT INSTALLATION

1. Turn off all power to unit.
2. If an existing thermostat is being replaced:
A. Remove existing thermostat from wall.

B. Disconnect wires from existing thermostat, one at

a time. Be careful not to allow wires to fall back
into the wall.

C. As each wire is disconnected, record wire color

and terminal marking.

D. Discard or recycle old thermostat.

NOTE

: Mercury is a hazardous waste and MUST be dis-

posed of properly.

3. Separate the thermostat from base.
4. Route thermostat wires through hole in base. Level

base against wall (for aesthetic value only - thermo-
stat need not be leveled for proper operation) and
mark wall through 2 mounting holes.

5. Drill two 3/16-in. mounting holes in wall where

marked. (Note: Mounting holes on thermostat are
designed to fi t on a horizontal J-box).

6. Secure base to wall with 2 anchors and screws

provided making sure all wires extend through hole in
base.

7. Connect wires to proper terminal of the connector

block in the thermostat.

8. Push any excess wire back into wall. Excess wire

inside the thermostat case can interfere with proper
air fl ow across the temperature sensor. Seal hole in
wall to prevent air leaks. Leaks can affect operation.

9. Install thermostat on base.
10. Turn on power to the unit.

III. WIRING DIAGRAMS

All excess wire should be pushed back into the wall as far as
possible. Excess wire inside the thermostat plastic case may
interfere with the air fl ow across the temperature sensor.

ATC32U** Thermostat

24Vac Hot

DXM2

Control

24V

Comm +

A+

Comm -

B-

GND

Outdoor

Sensor

(Optional)

Remote Indoor

Sensor

(Optional)

24Vac Common

Gnd

Diagram 1: Thermostat Connections

Thermostat Connections

24V Common for Control Circuit

24V Supply for Control Circuit

A+ Communications

(Positive)

B –

Communications (Negative)

GND Ground
OD Outdoor

Temperature

Sensor

ID Indoor

Temperature

Sensor

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1.0 User Menu Settings

1.1 OFFSETS

you

fi nd that the temperature displayed on the

thermostat does not accurately represent the room
temperature where the thermostat is located, this
offset function compensates for the difference.
The thermostat will apply an offset between what
temperature the thermostat is measuring versus the
temperature that is displayed.

1.1.1

TEMPERATURE

OFFSET

The Temperature Offset function allows for
calibration of the temperature sensor.

Adjust the Temperature Offset settings using the
up/down arrow buttons. Press the center button to
save changes.

•

Indoor Temperature (default 0°F): options:
-5°F to +5°F (in 1°F increments)

•

Remote Temperature (default 0°F): options:
-5°F to +5°F (in 1°F increments)

•

Outdoor Temperature (default 0°F): options:
-5°F to +5°F (in 1°F increments)

1.1.2

ANTICPATOR

you

fi nd that the thermostat is overshooting or

undershooting the temperature setpoint value, the
Anticipator setting allows for adjustment to correct
the temperature algorithm. When the Anticipator
value is set to a lower number, the thermostat
becomes more sensitive and when the Anticipator
value is raised, the thermostat becomes less
sensitive. If the thermostat is overshooting the
temperature setpoint, adjust the Anticipator
value up to reduce thermostat sensitivity. If the
thermostat is undershooting the temperature
setpoint, adjust the Anticipator value down to
increase thermostat sensitivity.

Adjust the Anticipator setting using the up/down
arrow buttons. Press the center button to save
changes.

•

Anticipator (default 3): valid range: 1 to 9

1.1.3

DIFFERENTIAL

The Differential adjustment will vary the number of
degrees from the setpoint before a call for heating
or cooling is made. Use this function if you fi nd
that the thermostat is starting a call too soon/late
or staging equipment up/down too quickly/slowly.
For example, with a 1 ˚F 1st stage differential and
a heating setpoint of 70˚F, your thermostat will not
call for heating until the temperature is 69˚F.

Adjust the Differential setting using the up/down
arrow buttons. Navigate between Differentials
using the left/right arrow buttons. Press the center
button to save changes.

•

1st Stage (default 1°F):

options: 1°F to 4°F

(in 1°F increments)

•

2nd Stage (default 1°F):

options: 1°F to 4°F

(in 1°F increments)

•

Aux Heat (default 1°F)

: options: 1°F to 4°F

(in 1°F increments)

NOTE 1:

The thermostat must be confi gured for

Multistage by installer to access the 2nd Stage
Differential setting. The thermostat must be
confi gured for Auxiliary Heat by installer to access
the Auxiliary Heat Differential setting.

NOTE

The temperature control algorithm must

be confi gured for Differential control to access the
Differential settings by installer.

1.1.4

HUMIDITY

OFFSET

you

fi nd that the Humidity level displayed on

the thermostat does not accurately represent the
Humidity level of the room in which the thermostat
is located, use the Humidity Offset function to
calibrate the humidity sensor.

Adjust the Humidity Offset setting using the up/
down arrow buttons. Press the center button to
save changes.

•

Indoor Humidity (default 0%):

options:

-10% to +10% (in 1% increments)

1.2 CYCLES PER HOUR

The thermostat allows the user to adjust the maximum

number of on/off cycles per hour to maintain the
desired indoor temperature.

Adjust the Cycles per Hour setting using the up/

down arrow buttons. Press the center button to save
changes.

• 4 (default):

operation will start no sooner than 15

minutes after the previous call was initiated

• 6:

operation will start no sooner than 10 minutes

after the previous call was initiated (can provide
tighter temperature control)

1.3 AUTO CHANGEOVER TIME

When the thermostat is confi gured for AUTO mode,

the thermostat automatically selects heating or
cooling mode depending on the indoor temperature.
The Auto Changeover Time is the amount of time that
elapses before operation switches from heating to
cooling mode or from cooling to heating mode.

Adjust the Auto Changeover Time using the up/

down arrow buttons. Press the center button to save
changes.

• Auto Change Over Time (default 15 minutes):

options: 0 to 120 minutes (in 15 minute
increments)

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SERVICE INFORMATION

FAULT STATUS

TEMPERATURE STATUS

CLEAR FAULT HISTORY

SYSTEM STATUS

SELECT OPTION

1.4 DEMO MODE

Demo mode is designed to showcase heat pump

operation when the unit is connected to an above
ground water loop with the supply air being blown
directly over the water loop.

1.4.1

ENTER DEMO MODE

To enter Demo Mode, navigate to the Service
Information screen (Menu>Settings>Service
Information) then press and hold the right arrow for
5 seconds

1.4.2

DEMO MODE OPERATION

Control Demo Mode operation parameters from the
Demo Operation screen shown below.

DEMO OPERATION

OUTDOOR

FAN AUTO

78%

HEATING

RH 36%

HUMID ON

72%

AUTO

SETPOINT

HEAT 70

COOL 74

TEMP

MODE

FAN

The starting mode (heating or cooling) depends
on the loop temperature at the time when Demo
Mode is entered. The unit will operate in heating or
cooling based upon the following algorithm.

1.4.3

EXITING DEMO MODE

To exit demo mode, remove power to the
thermostat.

Start in Cooling Mode

Start in Heating Mode

90°F

70°F

50°F

Solid lines represent heating operation. Dashed lines represent
cooling operation.

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G e o t h e r m a l H e a t P u m p S y s t e m s

2.2.2 AUXILIARY

HEAT

Adjust the Auxiliary Heat options using the up/down arrow
buttons. Press the center button to save changes.

• Electric

(default)

– for control of a system with

electric auxiliary heat

• Multi-Fuel

– for control of a system with furnace

for auxiliary heat

• No

Auxiliary

Heat

– for control of a system with no

auxiliary

heat

2.2.2.1 AUXILIARY HEAT CONFIGURATION

Select Electric Auxiliary Heat mode

•

Auxiliary Heat to Supplement Pump

•

Auxiliary Heat for Emergency Heat Only

2.2 THERMOSTAT

CONFIGURATION

Upon initial power up, the communicating thermostat will
prompt the installer for the thermostat confi guration settings.

Model number and software version of thermostat and
software version of connected DXM2 are also displayed on
this screen.

2.2.1 STAGING

Adjust the staging option using the up/down arrow buttons.
Press the center button to save changes.

• Single

Stage

– for control of a single stage

compressor

applications

• Multi-Stage

(default)

– for control of multi-

stage compressor applications

2.0 Installer Menu Settings

2.1

INSTALLER MENU SETTINGS ACCESS

The Installer Settings can be accessed at any time from the
Main Operating screen by holding the up/down arrows simul-
taneously for 5 seconds while the thermostat is in OFF Mode.

Thermostat Confi guration
System Confi guration
Airfl ow Selection

Option

Selection

Unit

Confi guration

Pump

Confi guration

Valve

Confi guration

Accessory Confi guration
Air

Filter

Humidifi er
UV

Lamp

Air

Cleaner

Input Dealer Information
Humidity Confi guration
Temperature Algorithm
Demand Reduction Confi guration
Service Mode
Manual

Operation

Control

Diagnostics

Dipswitch

Confi guration

Fault

History

Clear Fault History

Restore Defaults

Installer Menu Settings Overview

THERMOSTAT

CONFIGURATION

SINGLE STAGE

MULTI STAGE

SELECT OPTION

PREVIOUS SAVE

THERMOSTAT

CONFIGURATION

ELECTRIC

MULTI FUEL

NO AUXILIARY HEAT

SELECT OPTION

PREVIOUS SAVE

THERMOSTAT

CONFIGURATION

AUXILIARY HEAT TO

SUPPLEMENT HEAT PUMP

AUXILIARY HEAT FOR

EMERGENCY HEAT ONLY

SELECT OPTION

PREVIOUS SAVE

INSTALLER SETTINGS

THERMOSTAT CONFIG

SYSTEM CONFIG

ACCESSORY CONFIG

INPUT DEALER INFO

HUMIDITY CONFIG

TEMPERATURE CONTROL

DEMAND REDUCTION CNFG

SERVICE MODE

RESTORY DEFAULTS

DXM2 1.0

ATC32U01 C 2.1

SELECT OPTION

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THERMOSTAT

CONFIGURATION

PROGRAMMABLE

NON PROGRAMMABLE

NIGHT SETBACK

SELECT OPTION

PREVIOUS SAVE

INSTALLER SETTINGS

THERMOSTAT CONFIG

SYSTEM CONFIG

ACCESSORY CONFIG

INPUT DEALER INFO

HUMIDITY CONFIG

TEMPERATURE ALGORITHM

DEMAND REDUCTION CNFG

SERVICE MODE

RESTORY DEFAULTS

ATC32U01

SELECT OPTION

SYSTEM CONFIGURATION

AIRFLOW SELECTION

OPTION SELECTION

UNIT CONFIG TE026

PUMP CONFIGURATION

SELECT OPTION

PREVIOUS SAVE

AIRFLOW SELECTION

CFM

HEAT STAGE 1 600

HEAT STAGE 2 750

AUXILIARY HEAT 850

EMERGENCY HEAT 850

COOL STAGE 1 525

COOL STAGE 2 700

COOL DEHUMID 1 425

COOL DEHUMID 2 550

CONTINUOUS FAN 350

HEAT OFF DELAY 60

COOL OFF DELAY 30

PREVIOUS NEXT

3.0 System Confi guration

Use the System Confi guration option on the start-up screen
to adjust critical equipment settings.

The System Confi guration information will be automatically
obtained from each communicating control in the system.

Note 1:

The Airfl ow Selection menu (section 3.1) will not be

present if the connected communicating control is confi gured
for No Blower.

Note 2:

The Pump Confi guration menu (section 3.4) will

not be present if the connected communicating control is
confi gured for No Loop Confi guration (OTHER).

Note 3:

The Valve Confi guration menu (section 3.5) will

not be present if the connected communicating control is
confi gured for No Loop Confi guration (OTHER).

3.1 AIRFLOW

SELECTION

Adjust the airfl ow settings for each system operating mode
using the up/down arrow buttons. Press the center button to
select each item.

• Airfl ow Settings (defaults stored in control)

valid range: obtained from control (in 25 CFM

increments)

• Blower Off Delay (default 60 seconds)

– valid

range: 0 to 255 seconds (in 5 second increments)

NOTE 1:

The Airfl ow Settings will only be present if the

connected communicating control is confi gured for ECM
blower.

NOTE 2:

If multiple units are connected to one thermostat,

refer to section 3.6 for unit selection.

3.2 OPTION

SELECTION

This option allows the confi guration of heat pump options to
be modifi ed.

Adjust the Option settings using the up/down arrow buttons.
Press the center button to select each item.

• Motorized Valve (defaults stored in control)

–

valid range: Off, On “On” delays compressor start
until the valve is fully open.

NOTE:

“Motorized Valve” used here refers to a two-position

motorized water valve, not to be confused with the modulating
motorized water valve found in the LOOP CONFIG.

2.2.3 PROGRAMMING

Adjust the Programming options using the up/down arrow
buttons. Press the center button to save changes.

• Programmable

(default)

– enables 7-day

programming

• Non-Programmable

– disables 7-day programming

• Night

Setback

– enables night setback

programming

NOTE

: When the thermostat is confi gured for non-

programmable mode, the Display Date and Time setting
defaults to NO.

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UNIT CONFIGURATION

CURRENT CONFIG TE026

HEAT PUMP FAMILY TE

HEAT PUMP SIZE 026

BLOWER TYPE ECM

LOOP CONFIG VS PUMP

PARALLEL

SELECT OPTION

PREVIOUS SAVE

VARIABLE SPD INTERNAL

PUMP CONFIGURATION

PUMP CONTROL DELTA T

HEATING DELTA T 7

COOLING DELTA T 10

MAXIMUM HEAT LWT 80

MINIMUM COOL LWT 40

PREVIOUS SELECT

• Compressor ASCD (Anti-Short Cycle Delay

(default stored in control)

– valid range: 5 to 8

(in 1 minute increments)

NOTE 1:

The Compressor Anti-Short Cycle Delay setting

provides equipment protection by forcing the compressor to
wait a few minutes before restarting.

NOTE 2:

If multiple units are connected to one thermostat,

refer to section 3.6 for unit selection.

3.4 PUMP

CONFIGURATION

vFlow™ vs internal flow control pump can be controlled either
through temperature differential (Delta T) or can be set to
specific speed (fixed; % of full speed for each heat and cool
stage).

Configure temperature differentials at the thermostat for
vFlow™ units with an internal flow control pump.

Adjust the Pump Configuration settings using the up/down
arrow buttons. Press the center button to select each item.

• Heating Delta T (default stored in control) –

valid range: 4 to 12ºF (in 1ºF increments)

• Cooling Delta T (default stored in control) –

valid range: 9 to 20ºF (in 1ºF increments)

Maximum Heat LWT (valid range based on specifi c model;
refer to model IOM). Minimum Cool LWT (valid range based
on specifi c model; refer to model IOM).

NOTE:

Refer to section 3.6.3 for multi-unit confi guration

instructions.

To control vs pump by fi xed speed, select ‘Pump Control’,
press , use down arrow to select ‘Fixed’, and press to
save.

Default stored in control. Valid range: 15% - 90% (in 1%
increments)
Heating Stage 1

Cooling Stage 1

Heating Stage 2

Cooling Stage 2

If Pump Confi guration is set to ‘VS PUMP PARALLEL’, valid
range changes to 50-90% (in 1% increments).

OPTION SELECTION

MOTORIZED VALVE OFF

COMPRESSOR ASCD 5

PREVIOUS NEXT

3.3 UNIT

CONFIGURATION

Adjust the Unit Confi guration settings including Heat
Pump Family, Heat Pump Size, Blower Type, and Loop
Confi guration using the up/down arrow buttons. Press the
center button to select each item.

• Heat Pump Family (default stored in control) –

valid range: TE, TY, TES, TEP, TRT, TSM

• Heat Pump Size (default stored in control)

– valid

range: depends on Heat Pump Family setting

• Blower Type (default stored in control)

– valid

range: NONE, PSC–2SPD, ECM, PSC–1SPD

• Loop

Confi g (default stored in control)

– valid

range: Other, VS PUMP SINGLE, VS PUMP

PARALLEL, MOD VALVE, MOD VALVE MIN POS

Airfl ow, pump and valves can be confi gured from ‘System
Confi guration’ screen.

Select ‘VS PUMP PARALLEL’ when applying an internal
variable speed fl ow controller with other fl ow controllers on a
single loop in parallel.

NOTE:

Refer to section 3.6.3 for multi-unit confi guration

instructions.

CAUTION!

This is a Commercial option only and does not

alter Residential unit operation.

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MODULATING VALVE

CONFIGURATION

DEG

HEATING DELTA T 8

COOLING DELTA T 15

PREVIOUS NEXT

3.5 VALVE

CONFIGURATION

Confi gure temperature differentials at the thermostat for
vFlow™ units with a motorized modulating valve.

Adjust the Valve Confi guration settings using the up/down
arrow buttons. Press the center button to select each item.

• Heating Delta T (default stored in control) –

valid range: 4 to 12ºF (in 1ºF increments)

• Cooling Delta T (default stored in control) –

valid range: 9 to 20ºF (in 1ºF increments)

NOTE 1:

Minimum and Maximum degree values are shown

only when the control is confi gured with the appropriate values.

NOTE 2:

Refer to section 3.6.3 for multi-unit confi guration

instructions.

VARIABLE SPD INTERNAL

PUMP CONFIGURATION

PUMP CONTROL FIXED

HEATING STAGE 1 60%

COOLING STAGE 2 75%

COOLING STAGE 1 50%

COOLING STAGE 2 70%

PREVIOUS SELECT

3.5.1

MODULATING VALVE OFF POSITION

Click Next from section 3.5 to select the off position
value for the modulating valve.

NOTE:

For certain commercial multi-unit

applications, the modulating valve can be kept
slightly open by choosing values 3.3-4.0.

MODULATING VALVE

CONFIGURATION

OFF POSITION 3.8

PREVIOUS SELECT

3.6 MULTI-UNIT

CONFIGURATION

If multiple units are connected to one ATC thermostat upon
unit start-up, the thermostat will automatically register the
serial numbers of all units connected to it.

NOTE:

Multiple units may be connected directly to the ATC

thermostat or connected to one another in series, as shown by
the fi gure below.

Two
connections
on DXM2
board to allow
for multi-unit
installation

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3.6.2

MULTI-UNIT OPTION SELECTION

In section 3.2, when an installer selects “Option
Selection” from the System Confi guration menu,
the installer may choose the unit to confi gure
by the last 4 digits of its serial number from the
following screen.

AIRFLOW SELECTION

TT026 S N - - - - - 1 2 3 4

TT026 S N - - - - - 5 6 7 8

TT038 S N - - - - - 9 0 1 2

PREVIOUS SELECT

OPTION SELECTION

TT026 S N - - - - - 1 2 3 4

TT026 S N - - - - - 5 6 7 8

TT038 S N - - - - - 9 0 1 2

PREVIOUS SELECT

3.6.3

MULTI-UNIT, UNIT, PUMP, & VALVE

CONFIGURATION

confi gure Unit, Pump, and Valve options in

sections 3.3-3.5, the thermostat must be
connected to only one unit at a time.

3.6.1

MULTI-UNIT

AIRFLOW

SELECTION

In section 3.1, when an installer selects “Airfl ow
Selection” from the System Confi guration menu,
the installer may choose the unit to confi gure
by the last 4 digits of its serial number from the
following screen.

4.0 Accessory Confi guration

A service message will fl ash at the top of the Main screen
when a service timer expires to alert the user that it is time to
service these options. Refer to DXM2 AOM for instructions on
confi guring DIP switches to confi gure accessories. Follow the
instructions below to set service timers.

4.1 AIR

FILTER

This feature displays an alert to remind the user to change
the air fi lter after the selected time has passed.

Adjust the Air Filter Reminder settings using the up/down
arrow buttons. Press the center button to save changes.

• Cumulative Run Time (default Off) –

valid range:

Off, 400 to 3600 hours (in 100 hour increments

)

• Calendar Time (default Off) –

valid range: Off, 3

to 48 months (in 3 month increments)

4.2 HUMIDIFIER

This feature displays an alert to remind the user to change
the humidifi er pad after the selected time has passed.

Adjust the Humidifi er Reminder settings using the up/down
arrow buttons. Press the center button to save changes.

• Cumulative Run Time (default Off)

– valid range:

Off, 400 to 3600 hours (in 100 hour increments)

• Calendar Time (default Off)

– valid range: Off, 3

to 24 months (in 3 month increments)

4.3 UV

LAMP

This feature displays an alert to remind the user to change
the UV lamps after the selected time has passed.

Adjust the UV Lamp Reminder settings using the up/down
arrow buttons. Press the center button to save changes.

• Cumulative Run Time (default Off)

– valid range:

Off, 400 to 3600 hours (in 100 hour increments)

• Calendar Time (default Off)

– valid range: Off, 3

to 48 months (in 3 month increments)

4.4 AIR

CLEANER

This feature displays an alert to remind the user to clean the
fi lter(s) after the selected time has passed.

INSTALLER SETTINGS

THERMOSTAT CONFIG

SYSTEM CONFIG

ACCESSORY CONFIG

INPUT DEALER INFO

HUMIDITY CONFIG

TEMPERATURE ALGORITHM

DEMAND REDUCTION CNFG

SERVICE MODE

RESTORY DEFAULTS

ATC32U01

SELECT OPTION

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5.0 Input Dealer Information

Enter/edit the Dealer Information settings, including Brand
Name, Model Number, Serial Number, Contractor Name, and
Contractor Phone number, using the up/down arrow buttons.
Press the center button to save changes.

Adjust the Air Cleaner Reminder settings using the up/down
arrow buttons. Press the center button to save changes.

• Cumulative Run Time (default Off)

– valid range:

Off, 400 to 3600 hours (in 100 hour increments)

• Calendar Time (default Off) –

valid range: Off, 3

to 24 months (in 3 month increments)

6.0 Humidity Confi guration

Confi gure humidity control settings (dehumidifi cation/
humidifi cation).

Adjust the Humidity Control settings using the up/down arrow
buttons. Press the center button to save changes.

• Dehumidifi cation

– This logic will communicate

a Dehumidifi cation output when the humidity is
greater than the setpoint (acts as a dehumidistat).
The Dehumidifi cation output will not be
communicated when the humidity is below the
setpoint.

• Humidifi cation

– This logic will communicate a

Humidifi cation output when the humidity is less
than the setpoint (acts as a humidistat). When the
Humidifi cation output is active, the fan output will
also be active. The Humidifi cation output will not
be communicated when the humidity is above the
setpoint.

• Both

– Incorporates both Dehumidifi cation and

Humidifi cation logic.

• None

(default)

– Dehumidifi cation

and Humidifi cation outputs will not be
communicated.

7.0 Temperature Algorithm

Confi gure the logic the thermostat uses to meet the
temperature setpoints.

• Proportional Integral (default)

– This logic will

use a combination of temperature differential and
operating time to determine the appropriate heating
or cooling stages for operation (see NOTE 1).

• Proportional Integral (No Down Staging)

– This

logic includes the Proportional Integral logic, but
in addition the logic keeps all active heating or
cooling stages energized until the demand is fully
satisfi ed (see NOTE 1).

• Differential

– This logic will only use temperature

differential to determine the appropriate heating or

cooling stages for operation. This logic will keep
all active heating or cooling stages energized until
the demand is fully satisfi ed (see NOTE 2).

NOTE 1

: The Proportional Integral options require fi rst stage

heating or cooling to be active for a minimum of 5 minutes,
before energizing second stage when confi gured for multi
stage operation.

NOTE 2

: The Differential option will activate fi rst stage heating

or cooling when the temperature is more than the fi rst stage
differential value (User Manual section 5.6.2.3), below or
above the setpoint. Second stage heating or cooling will be
activated when the temperature is more than the fi rst and
second stage differential values combined (User Manual
section 5.6.2.3), below or above the setpoint. Third stage
heating will be activated when the temperature is more than
the fi rst, second, and third stage differential values combined
(User Manual section 5.6.2.3), below the setpoint.

8.0 Demand Reduction
Confi guration

Demand Reduction is activated by an input signal at the unit
control board to reduce the electric load while peak utility
rates are high. The Demand Reduction Confi guration mode
selects which of the available unit control inputs is to be
used as the activation signal. While a physical input signal is
present at the selected input, the thermostat will implement
load reduction by limiting operation or capacity. Refer to
section 5.6.9 in the user manual (part number 97B0055N02)
for more details on Demand Reduction.

Adjust the Demand Reduction Confi guration setting using
the up/down arrow buttons. Press the center button to save
changes.

• No Demand Reduction (default)

– Demand

Reduction operating mode will not be activated by
a DXM2 input.

• DXM2

Inputs

– Assigns a DXM2 input to activate

Demand Reduction operating mode.

INSTALLER SETTINGS

THERMOSTAT CONFIG

SYSTEM CONFIG

ACCESSORY CONFIG

INPUT DEALER INFO

HUMIDITY CONFIG

TEMPERATURE ALGORITHM

DEMAND REDUCTION CNFG

SERVICE MODE

RESTORY DEFAULTS

ATC32U01

SELECT OPTION

AT C 3 2 U 0 1 C o m m u n i c a t i n g , P r o g r a m m a b l e T h e r m o s t a t - I O M

R e v. : 4 F e b . , 2 0 1 3

G e o t h e r m a l H e a t P u m p S y s t e m s

9.0 Service Mode

9.1 MANUAL

OPERATION

Manual Operation mode allows the service personnel to
manually command operation for any of the thermostat
outputs, blower speed, as well as pump speed or valve
position to help troubleshoot specifi c components.

NOTE 1

: The ECM Airfl ow adjustment will not be present if the

connected communicating control (DXM2) is not confi gured for
ECM (section 3.3).

NOTE 2

: The Pump Speed adjustment will not be present

if the connected communicating control (DXM2) is not
confi gured for Pump (section 3.3).

NOTE 3

: The Valve Position adjustment will not be present if

the connected communicating control (DXM2) is confi gured for
Valve (section 3.1).

NOTE 4

: If multiple units are connected to one thermostat,

refer to section 9.6

SERVICE MODE

MANUAL OPERATION

CONTROL DIAGNOSTICS

DIPSWITCH CONFIG

FAULT HISTORY

CLEAR FAULT HISTORY

SELECT OPTION

PREVIOUS SELECT

MANUAL OPERATING MODE

COMM OUTPUT

OFF

COMM OUTPUT

OFF

COMM OUTPUT

OFF

COMM OUTPUT

OFF

COMM OUTPUT

OFF

COMM OUTPUT

OFF

COMM OUTPUT

OFF

ECM

AIRFLOW

PUMP SPEED

TEST

MODE

OFF

SELECT OPTION

PREVIOUS SELECT

9.2 CONTROL

DIAGNOSTICS

Control Diagnostics mode allows the service personnel to
view the status of all physical inputs, switches, temperature
sensor readings, as well as the operational status of the
pump at the thermostat.

Navigate between diagnostic screens using the left/right
arrow buttons.

NOTE 1

: The Pump Status will not be present if the connected

communicating control (DXM2) is not confi gured for Pump
(section 3.3).

NOTE 2

: If multiple units are connected to one thermostat,

refer to section 9.6.

CONTROL DIAGNOSTICS

PUMP OPERATION

PUMP SPEED 60%

PUMP WATTS 140

FLOW RATE GPM 7.4

CONTROL STATUS

TEMPERATURES

LT1 TEMP 38.1

LT2 TEMP 79.9

COMP DISCHARGE 157.7

HOT WATER EWT 121.5

LEAVING AIR 75.1

LEAVING WATER 73.3

ENTERING WATER 78.5

CONTROL VOLTAGE 26.4

ECM BLOWER RPM 550

ECM TARGET CFM 800

ECM BLWR STATIC N/A

PREVIOUS NEXT

CONTROL DIAGNOSTICS

HP SWITCH CL

LOC SWITCH CL

Y1 PHYSICAL INPUT ON

Y2 PHYSICAL INPUT OFF

W PHYSICAL INPUT OFF

O PHYSICAL INPUT ON

G PHYSICAL INPUT ON

H PHYSICAL INPUT OFF

EMERG SHUTDOWN OFF

NIGHT SETBACK OFF

OVR INPUT OFF

PREVIOUS NEXT

AT C 3 2 U 0 1 C o m m u n i c a t i n g , P r o g r a m m a b l e T h e r m o s t a t - I O M

R e v. : 4 F e b . , 2 0 1 3

9.3 DIPSWITCH

CONFIGURATION

Dipswitch Confi guration mode allows the service personnel
to view the status of all dipswitch settings for the connected
communicating control (DXM2/AXM) at the thermostat.

Navigate between confi guration screens using the left/right
arrow buttons.

NOTE 1

: The unit control dipswitch settings cannot be

changed from the thermostat.

NOTE 2

: If multiple units are connected to one thermostat,

refer to section 9.6.

CONTROL CONFIGURATION

DIPSWITCH S1

1 ON UPS ENABLED

2 ON DUAL COMP STG 1

3 ON HEAT PUMP TSTAT

4 ON RV O THERMOSTAT

5 ON DEHUMID OFF

6 ON EH2 AUX HEAT

7 ON BOILERLESS

8 ON SEE DXM2 AOM

PREVIOUS NEXT

CONTROL CONFIGURATION

DIPSWITCH S2

1 ON \ ACCESSORY 1

2 ON ACCESSORY 2

3 ON/

4 ON \ ACCESSORY 2

5 ON ACTIVE W/ COMP

6 ON /

7 ON H DEHUM INPUT

8 ON FACTORY SETTING

PREVIOUS NEXT

CONTROL CONFIGURATION

DIPSWITCH S3

1 ON FACTORY SETTING

2 OFF HWG TEST OFF

3 OFF HWG SP 125

4 OFF HWG DISABLED

JW3 LT1 SETTING WELL

9.4 FAULT

HISTORY

Fault History mode displays the fi ve most recent stored fault
codes for the connected communicating control (DXM2).

Navigate between control fault codes using the up/down
arrow buttons. Press the center button to view more
information about the highlighted fault code.

NOTE

: If multiple units are connected to one thermostat, refer

to section 9.7.

9.4.1 Temperature

Conditions

Displays detailed temperature readings that were
recorded at the time the fault occurred.

NOTE

: If multiple units are connected to one thermostat, refer

to section 9.6.

TT038 SN - - - - - 0 1 2 3

LAST 5 FAULTS

LT1 LOW WATER TEMP

NO FAULT

PREVIOUS SELECT

FAULT CONDITION MENU

LT1 LOW WATER TEMP

HEAT 1 11:11 AM 11/14

FAULT TEMP CONDITIONS

FAULT FLOW CONDITIONS

FAULT I/O CONDITIONS

FAULT CONFIG COND

FAULT POSSIBLE CAUSES

PREVIOUS SELECT

FAULT TEMPERATURE CONDITIONS

LT1 LOW WATER TEMP

HEAT 1 11:11 AM 11/14

LT1 TEMP 28.1

LT2 TEMP 97.3

HOT WATER EWT 121.5

COMP DISCHARGE 157.7

LEAVING AIR 92.7

LEAVING WATER 34.9

ENTERING WATER 42.1

CONTROL VOLTAGE 26.4

AT C 3 2 U 0 1 C o m m u n i c a t i n g , P r o g r a m m a b l e T h e r m o s t a t - I O M

R e v. : 4 F e b . , 2 0 1 3

G e o t h e r m a l H e a t P u m p S y s t e m s

9.4.2 Flow

Conditions

Displays detailed blower and pump speed / valve
position readings that were recorded at the time the
fault occurred.

NOTE

: If multiple units are connected to one thermostat, refer

to section 9.7.

9.4.3 Input/Output

Conditions

Displays the status of all physical and communicated
inputs, switches, and control outputs that were
recorded at the time the fault occurred.

NOTE

: If multiple units are connected to one thermostat, refer

to section 9.7.

9.4.4 Confi guration Conditions

Displays the status of all dipswitch settings that were
recorded at the time the fault occurred.

NOTE

: If multiple units are connected to one thermostat, refer

to section 9.7.

FAULT FLOW CONDITIONS

LT1 LOW WATER TEMP

HEAT 1 11:11 AM 11/14

ECM TARGET CFM 800

ECM BLOWER RPM 550

FLOW RATE GPM 6.5

PUMP SPEED 60%

VALVE POSITION 0%

FAULT I / O CONDITIONS

LT1 LOW WATER TEMP

HEAT 1 11:11 AM 11/14

TSTAT SAFETY OUTPT

CONV COMM

HPS

LOC

ACC1

OUTPT

ACC2

FAN

AL1

HWG

EH1

OVR

PUMP

EH2

FAULT CONFG CONDITIONS

LT1 LOW WATER TEMP

HEAT 1 11:11 AM 11/14

S1 S2 S3

1 ON 1 ON 1 ON

2 ON 2 ON 2 OFF

3 ON 3 ON 3 OFF

4 ON 4 ON 4 OFF

5 ON 5 ON

6 ON 6 ON LT1 WELL

7 ON 7 ON LT2 WELL

8 ON 8 ON

9.5

CLEAR FAULT HISTORY

Clear Fault History will clear all fault codes stored in the
thermostat as well as the fault history in any connected
communicating controls (DXM2/AXM).

9.6 MULT-UNIT

DIAGNOSTICS

If multiple units are connected to one thermostat when
Manual Operation, Control Diagnostics, or Dipstick
Confi guration is selected, the service personnel will see a
screen to select a specifi c unit by the last 4 digits of its serial
number.

NOTE:

Multiple units may be connected directly to the ATC

thermostat or connected to one another in series, as shown by
the fi gure below.

9.4.5 Possible

Causes

Possible causes as to why the fault occurred

NOTE

: If multiple units are connected to one thermostat, refer

to section 9.7.

POSSIBLE FAULT CAUSES

LOW WATER COIL TEMP

LOW WATER TEMP - HTG

LOW WATER FLOW - HTG

LOW REFRIG CHARGE - HTG

INCORRECT LT1 SETTING

BAD LT1 THERMISTOR

Two
connections
on DXM2
board to allow
for multi-unit
installation

AT C 3 2 U 0 1 C o m m u n i c a t i n g , P r o g r a m m a b l e T h e r m o s t a t - I O M

R e v. : 4 F e b . , 2 0 1 3

CONTROL DIAGNOSTICS

TT026 S N - - - - - 1 2 3 4

TT026 S N - - - - - 5 6 7 8

TT038 S N - - - - - 9 0 1 2

PREVIOUS SELECT

9.7

MULT-UNIT FAULT INFO

When multiple units are connected to one thermostat,
UNLIKE Mult-Unit Diagnostics, the service personnel views
each units’ fault information by selecting the next option.

10.0 Restore Defaults

The thermostat will reset all settings, excluding the
thermostat confi guration settings (section 2), to their factory
defaults.

TT038 S N - - - - - 0 1 2 3

LAST 5 FAULTS

LT1 LOW WATER TEMP

NO FAULT

PREVIOUS SELECT

AT C 3 2 U 0 1 C o m m u n i c a t i n g , P r o g r a m m a b l e T h e r m o s t a t - I O M

R e v. : 4 F e b . , 2 0 1 3

G e o t h e r m a l H e a t P u m p S y s t e m s

IFIED

TO ARI

W
IT

STA

NDARD 13

HEA

T PUMP

97B0055N03

ClimateMaster works continually to improve its products. As a result, the design and specifi cations of each product at the time for order may be

changed without notice and may not be as described herein. Please contact ClimateMaster’s Customer Service Department at 1-405-745-6000

for specifi c information on the current design and specifi cations. Statements and other information contained herein are not express warran-

ties and do not form the basis of any bargain between the parties, but are merely ClimateMaster’s opinion or commendation of its products.
The management system governing the manufacture of ClimateMaster’s products is ISO 9001:2008 certifi ed.

*97B0055N03*

7300 S.W. 44th Street

Oklahoma City, OK 73179

Phone: 405-745-6000

Fax: 405-745-6058

climatemaster.com

Rev.: 4 Feb., 2013

ISO 9001:2008
Certified

Quality: First & Always

Date

Page #

Description

4 Feb. 13

Unit Confi g Section Updated

1 Oct., 12

8-9

Unit Confi g, Pump Confi g and Valve Confi g Sections Updated

1 Oct., 12

Tstat Confi g Section and Installer Setting Screen Updated

2 July, 12

Various

Demo Mode, Auxiliary Heat Confi guration and Multiple Unit
Information and Screen Shots Added

8 May, 12

All

First Published

11.0 Revision History

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