ClimateMaster ACDU03 Operation Manual - User Manual

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Operation Manual

97B0106N01

Rev.: 11/3/17

ACDU03 Communicating

Service Tool

Table of Contents

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

1.0 Connection

2.0 Menu

Structure

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

Service Mode

4.1

Manual

Operation

4.2

Control

Diagnostics

4.3

Dipswitch

Confi guration

4.4

Fault

History

4.5

Clear Fault History

5.0 Revision

History

This page was intentionally left blank.

A C D U 0 3 C o m m u n i c a t i n g S e r v i c e To o l

R e v. : N o v e m b e r 3 , 2 0 1 7

ClimateMaster’s Communicating Service Tool (ACDU03) allows install and service technicians to confi gure and diagnose
ClimateMaster Digital Communicating Units without installing a digital communicating thermostat.

Using the Service Tool, a technician can ELECTRONICALLY:

1. Confi gure items like: airfl ow, heat pump options and confi guration, pump or modulating valve operation, unit family, unit

size, etc.

AND

2. Diagnose the unit by operating it manually, performing control diagnostics, viewing dip switch confi gurations, or by

viewing fault history and operating conditions when a fault occurred.

The Service Tool connects to the DXM2 board with a 4-Wire Connector as shown below:

Alarm

AL1

NSB

AL2

JW1

B-

Gnd

A+

24V

Service tool

connection

DXM2

Board

DXM2

Board

1.0 Connection

WARNING!

WARNING! Connecting wire harness while unit is
powered on or connecting backward may damage
service tool.

Note: For Vertical Stack models (TSM, TSL) must
order harness for connection to service port outside
chassis. Harness part number 11B0100N27. DXM2 to
service port is factory wired.

A C D U 0 3 C o m m u n i c a t i n g S e r v i c e To o l

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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

2.0 Menu Structure

System Confi guration
Airfl ow Selection

Option Selection

Unit Confi guration

Pump Confi guration

Valve

Confi guration

Service Mode
Manual

Operation

Control

Diagnostics

Dipswitch

Confi guration

Fault

History

Clear Fault History

Menu Structure

Start-up Screen

System Confi guration Menu

SERVICE TOOL MENU

SYSTEM CONFIG

SERVICE MODE

ACDU03 1.00

SELECT OPTION

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 system has
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.

SYSTEM CONFIGURATION

AIRFLOW SELECTION

OPTION SELECTION

UNIT CONFIG TES026

PUMP CONFIGURATION

SELECT OPTION

PREVIOUS SELECT

A C D U 0 3 C o m m u n i c a t i n g S e r v i c e To o l

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Option Selection Menu

Unit Confi guration Menu

OPTION SELECTION

MOTORIZED VALVE OFF

COMPRESSOR ASCD 0

SELECT OPTION

PREVIOUS SELECT

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.

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.

• 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.

3.3 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, TSL

• Heat Pump Size (default stored in control) – valid

range: depends on Heat Pump Family setting

• Blower Type (default stored in control) – valid

range: NO BLOWER, 2-SPD PSC, COM ECM-V,
1-SPD PSC, 2-SPD CTM, PWM ECM, VFD

• Loop

Confi g (default stored in control) – valid

range: Other, VS PUMP, MOD VALVE

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.

UNIT CONFIGURATION

CURRENT CONFIG TE026

HEAT PUMP FAMILY TE

HEAT PUMP SIZE 026

BLOWER TYPE ECM

LOOP CONFIG VS PUMP

SELECT OPTION

PREVIOUS SAVE

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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

VARIABLE SPD INTERNAL

PUMP CONFIGURATION

LOOP OPTION SINGLE

PUMP CONTROL FIXED

HEATING STAGE 1 60%

COOLING STAGE 2 75%

COOLING STAGE 1 50%

COOLING STAGE 2 70%

PREVIOUS SELECT

3.4 PUMP

CONFIGURATION

vFlow™ vs internal fl ow control pump can be controlled either
through temperature differential (Delta T) or can be set to
specifi c speed (fi xed; % of full speed for each heat and cool
stage).

Can be confi gured for either single pumping or parallel
pumping.

Confi gure temperature differentials at the thermostat for
vFlow™ units with an internal fl ow control pump.

Adjust the Pump 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)

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).

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.

3.5.1 MODULATING VALVE OFF POSITION

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 0.0

VALVE CONTROL DELTA T

HEATING DELTA T 7 F

COOLING DELTA T 10 F

MAXIMUM HEAT LWT 80 F

MINIMUM COOL LWT 40 F

PREVIOUS SELECT

VARIABLE SPD INTERNAL

PUMP CONFIGURATION

LOOP OPTION PARALLEL

PUMP CONTROL DELTA T

HEATING DELTA T 7 F

COOLING DELTA T 10 F

MAXIMUM HEAT LWT 80 F

MINIMUM COOL LWT 40 F

PREVIOUS SELECT

A C D U 0 3 C o m m u n i c a t i n g S e r v i c e To o l

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

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 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.

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.

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.

3.6.3

Multi-Unit, Unit, Pump, & Valve Confi guration

To 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.

A C D U 0 3 C o m m u n i c a t i n g S e r v i c e To o l

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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

4.0 Service Mode

4.1 MANUAL

OPERATION

Manual Operation mode allows 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 3.1).

NOTE 2

: The Pump Speed adjustment will not be present

if the connected communicating control (DXM2) is not
confi gured for Pump (section 3.4).

NOTE 3

: The Valve Position adjustment will not be present if

the connected communicating control (DXM2) is confi gured for
Valve (section 3.5).

4.2 CONTROL

DIAGNOSTICS

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

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

NOTE

: The Pump Status will not be present if the connected

communicating control (DXM2) is not confi gured for Pump
(section 3.4).

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

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

CONTROL DIAGNOSTICS

PUMP OPERATION

PUMP SPEED 60%

PUMP WATTS 140

FLOW RATE GPM 7.4

A C D U 0 3 C o m m u n i c a t i n g S e r v i c e To o l

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4.3 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

: The unit control dipswitch settings cannot be changed

from the thermostat or confi guration/diagnostics tool.

S1 Dipswitch Status

S2 Dipswitch Status

S3 Dipswitch Status

Fault History

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

TT038 SN - - - - - 0 1 2 3

LAST 5 FAULTS

LT1 LOW WATER TEMP

NO FAULT

PREVIOUS SELECT

4.4 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.

A C D U 0 3 C o m m u n i c a t i n g S e r v i c e To o l

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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

4.4.1 Temperature Conditions

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

4.4.0 Fault Conditions Menu

4.4.2 Flow

Conditions

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

4.4.3 Input/Output

Conditions

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

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

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 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%

PUMP WATTS 140

LOOP CONFIG VS PUMP

PREVIOUS SINGLE

FAULT FLOW CONDITIONS

LT1 LOW WATER TEMP

HEAT 1 11:11 AM 11/14

ECM TARGET CFM 800

ECM BLOWER RPM 550

VALVE POSITION 10.0V

LOOP CONFIG MOD VALVE

PREVIOUS MIN POS

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4.4.3 Confi guration Conditions

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

4.4.4 Possible

Causes

Displays possible causes as to why the fault occurred

4.5

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).

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

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

A C D U 0 3 C o m m u n i c a t i n g S e r v i c e To o l

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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

5.0 Revision History

97B0106N01

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.

*97B0106N01*

7300 S.W. 44th Street

Oklahoma City, OK 73179

Phone: 405-745-6000

Fax: 405-745-6058

climatemaster.com

Rev.:

J a n u a r y 2 3 , 2 0 1 9

Date

Page #

Description

23 Jan. 19

3,4

Update harness and service tool part number

3 Nov., 17

All

Updated tstat Part number to ATC32U03

16 October, 2017

Update blower types

25 Jan., 2016

Updated Certifi cation Logos

17 Apr., 14

3,5

Text Updated

11 Feb., 14

All

ACDU01 Updated to ACDU02

23 Oct. 12

4-7

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

8 May, 12

All

First Published

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