Mitsubishi Electric BAC-HD150 User manual

Contents Page
Safety precautions .................................................2
1. Introduction....................................................3
1.1 Applicable Model..................................3
1.2 Restrictions/Cautions ...........................4
2. System configurations ...................................6
2.1 Sample system configuration...............6
2.2 Group configurations............................8
3. Function specifications ..................................9
3.1 Basic Functions....................................9
3.2
Communication protocol specifications ....9
3.3 Objects ...............................................10
3.4 Relations between objects and control
items ..................................................11
3.5 Temperature setting objects ..............15
3.6 Services .............................................16
3.7 Services per object ............................18
3.8 Event service specifications ...............19
3.9 Error Code .........................................20
4. Setting for power-on for the first time ..........21
4.1 Caution...............................................21
4.2 Setting up after turning on the power
for the first time ..................................21
5. Starting up the BAC-HD150 ........................21
5.1 Starting up the BAC-HD150 ...............21
5.2 Restarting the BAC-HD150 ................21
5.3 Mode of BAC-HD150 .........................21
6. Switches and LED display ...........................22
6.1 Switch and LED locations ..................22
6.2 Switch types.......................................22
6.3 LED Types .........................................24
6.4 Switch Setting Display .......................25
6.5
BAC-HD150 Status and Mode Display ...26
6.6 Display Functions...............................27
6.7 Operation Functions...........................28
6.8 Error Display ......................................29
6.9 Recommended USB Drives ...............29
7. On-site adjustment steps (When BAC-HD150
is connected to M-NET) ...............................30
7.1 On-site adjustment flowchart .............30
7.2 Preparation for on-site adjustment.....31
7.3 Step - 1 Initial setting for air
conditioning system ...........................32
7.4 Step - 2 Test run of air conditioning
system................................................33
7.5 Step - 3 Initial settings for the BAC-
HD150 related items ..........................34
7.6 Step - 4 Test run of BAC-HD150 .......35
8. On-site adjustment steps (When BAC-HD150
is connected to PAC-YG50ECA) .................36
8.1 On-site adjustment flowchart .............36
8.2 Preparation for on-site adjustment.....37
8.3 Step-1 Initial setting for air conditioning
system................................................38
8.4 Step-2 Test run of BAC-HD150 .........40
Air-conditioner Control System
BM ADAPTER
BAC-HD150 Instruction Book
BACnet®is a registered trade mark of ASHRAE
(American Society of Heating, Refrigerating, and
Air-Conditioning Engineers, INC.).
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Safety precautions
Thoroughly read this instruction book before use to ensure safety.
Before using the BAC-HD150, read the Safety Precautions section carefully to ensure proper operation.
These safety precautions must be observed by anyone who operates the BAC-HD150.
Keep the Instruction Book and Installation Manual for future reference. Make sure both manuals are passed on to any
future air condition system users.
WARNING This symbol indicates that failure to follow the instructions exactly as stated poses the risk
of serious injury of death.
CAUTION This symbol indicates that failure to follow the instructions exactly as stated poses the risk
of injury or damage to the BAC-HD150.
WARNING
CAUTION
The unit must be installed by a dealer or technical
representative.
Improper installation by an unqualified person may result
in electric shock and fire.
Install in a location that is strong enough to
withstand the weight of the unit.
A weak installation area may cause the unit to fall down,
resulting in a personal injury.
Only use specified cables. Securely connect each
cable so that the weight of the cable is not applied to
the connectors.
Loose or improper connections may result in heat
generation or fire.
If any abnormality is noticed (e.g., burning smell), stop
the operation, turn off the power supply, and contact
your dealer or technical representative immediately.
Continuing the operation may result in damage to the
BAC-HD150, electric shock, or fire.
Ask your dealer or an authorized technician to move
or reinstall the BAC-HD150.
Improper installation may result in an electric shock or
fire.
BAC-HD150 must be disposed of properly.
Contact your dealer for proper disposal procedures.
Do not attempt to modify or repair the BAC-HD150.
Modification or improper repair may result in electric
shock or fire. Consult your dealer when repairs are
necessary.
Stop the operation immediately and notify your
dealer if the BAC-HD150 does not operate, or when
any abnormality is noticed.
Continuing the operation may result in damage to the
BAC-HD150 or fire.
Do not install the BAC-HD150 where there is a risk of
leaking flammable gas.
If the leaked gas accumulates around the BAC-HD150, it
may ignite and cause an explosion.
Do not wash the BAC-HD150 with water.
Doing so may cause an electric shock or malfunction.
Do not use the BAC-HD150 for specialized
applications.
This product is designed exclusively for use with the
MITSUBISHI ELECTRIC building air conditioning control
system. The use of this product for other purposes may
result in malfunctions.
Do not spray insect sprays or sprays with flammable
propellants to the BAC-HD150.
To avoid the risk of fire or explosion, do not place
flammable sprays near the BAC-HD150 or spray them
directly on the BAC-HD150.
Do not apply mechanical shock to BAC-HD150.
Do not use the BAC-HD150 in an environment high in
oil, steam, or sulfuric gas.
These substances may have adverse effects on the
performance of the BAC-HD150 or damage its parts.
Operate the BAC-HD150 within the temperature range
specification.
The use of controller outside of its specification may
result in serious damage to the BAC-HD150. Be sure to
check the temperature range specification in the
Installation Manual.
Use a security device such as a VPN router when
connecting the BAC-HD150 to the Internet to prevent
unauthorized access.
If no security devices are installed, the operation settings
may be changed by an unauthorized person without the
knowledge of the user.
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1.1 Applicable Model
BAC-HD150 have functions to monitor and operate air conditioning units (excl. certain models).
Table: Models and available functions
: Supported
X : Not supported
1 Introduction
Model Function (Monitor/Operation)
CITY MULTI
S series
Y series
HP series
R2 series
WY series
WR2 series
HVRF series
LOSSNAY
OA Processing unit
A-control unit (Mr. Slim) (Requires an adapter)
AK-control unit (Mr. Slim) x
K-control unit (Requires a converter)
Room air conditioner (RAC) (Requires an adapter)
Air To Water Booster unit/Air To Water
HEX unit
DOAS (Dedicated Outside Air System)
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1.2 Restrictions/Cautions
Restrictions and Cautions for BAC-HD150 are as follows.
(1) Restrictions on the system configuration
(a) When BAC-HD150 is connected to M-NET
(b) When BAC-HD150 is connected to PAC-YG50ECA (Expansion Controller)
• Restrictions on the DB No.
Controllers (PAC-YG50ECA, AG-150A and BAC-HD150) with different DB No. cannot be connected to each other.
When DB No. on the controllers is different, update the software version of the controllers.
Refer to section 3-3 “System in which BAC-HD150 is connected to PAC-YG50ECA (Expansion Controller)” in the
BAC- HD150 Installation Manual for information about DB No.
(2) Connecting AG-150A
• When connecting BAC-HD150 to PAC-YG50ECA, connect AG-150A to set the M-NET address, group, and interlocked
operation with LOSSNAY for PAC-YG50ECA.
(3) Supports for errors
• It is recommended to recover the system immediately when errors related to air conditioning are displayed on the building
management system.
(4) Operation during power failure
• When BAC-HD150 needs to be operated during power failure, a power backup device such as UPS (Uninterruptible Power
Supply) is recommended to be installed.
(5) Functions
• Due to continuing improvement, specifications are subject to change without notice.
(6) Models in a group
• BAC-HD150 monitors and controls indoor units for each group (*1).
To group multiple indoor units, use the same models in a group.
*1 : Group has two types: a unit in a group or multiple units in a group.
(7) Request interval (from BMS* to BAC-HD150) *BMS=Building Management System
• When sending Read_Property or Write_Property from BMS to BAC-HD150, set the interval to 200 (ms/property) or above.
[Ex.1]
Number of connectable units Notes
M-NET One line only
Indoor unit 50 units max./M-NET Includes all IC, LC, AIC, KIC, BU, AU.
Symbol IC : Indoor unit LC : LOSSNAY
Includes the FU (OA processing units)
that are configured in the group but not
interlocked with the indoor units.
AIC : A-control indoor unit KIC : K-control indoor unit
BU : Air To Water Booster unit AU : Air To Water HEX unit
Number of connectable units Notes
PAC-YG50ECA 3 units max. Software Version : 1.30 or later
AG-150A 1 or 2 units Software Version : 2.30 or later
BAC-HD150 1 unit Software Version : 2.00 or later
Indoor unit 150 units max.
(50 units max. / PAC-YG50ECA) Includes all IC, LC, AIC, KIC, BU, AU.
Read_Property Read_Property Write_Property Read_Property Write_Property
200ms 200ms 200ms 200ms
time
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When sending 10 properties using Read_Property_Multiple, wait for at least 2000 ms (= 200 ms 10 properties) before
sending another request to BAC-HD150.
[Ex.2]
(8) Restrictions on setting temperatures (dual set points/single set point)
Two types of temperature setting modes are used by some indoor units.
[Dual set points] . . . .Different temperature settings can be set to Cooling and Heating modes, and the Setback
function is also supported.
[Single set point]. . . .The same temperature settings are used in both Cooling and Heating modes. (Does not support
the Setback function)
Restrictions on setting temperatures (dual set points/single set point) are as follows.
(a) Monitoring setting temperatures from BMS
When sending temperature setting commands from BMS, note that different objects are used to set the setting temperatures
for dual set point indoor unit groups and single set point indoor unit groups. Refer to section 3.5 “Temperature setting objects”
in this manual for details.
(b) When dual set point indoor units and single set point indoor units are included in the same group
All indoor units in the same group will operate as single set point indoor units. Use single set point temperature setting object
(AV_xxxx10).
(c) When the BMS does not support the dual set point function
Enable “Old Model Compatibility Mode” of the BAC-HD150 Setting Tool. All indoor unit groups will be treated as single set
point unit groups because the BAC-HD150 will act as a single set point device.
Refer to section 8.2 “System Settings” in BAC-HD150 Setting Tool Instruction Book for details.
(d) When using PAC-YG50ECA
Systems with connections to PAC-YG50ECA and BAC-HD150 do not support the dual set point function. When using PAC-
YG50ECA, enable “Old Model Compatibility Mode” and “Expansion Controller Settings” on the BAC-HD150 Setting Tool. All
indoor unit groups will be treated as single set point unit groups. Refer to section 8.2 “System Settings” in BAC-HD150
Setting Tool Instruction Book for details.
(e) When using system controllers that do not support the dual set point function
When using system controllers that do not support the dual set point function, enable “Old Model Compatibility Mode” on the
BAC-HD150 Setting Tool. All indoor unit groups will be treated as single set point unit groups.
Refer to section 8.2 “System Settings” in BAC-HD150 Setting Tool Instruction Book for details.
(9) When connecting a superior system controller
Register the superior system controller as a System Controller from the BAC-HD150 Setting Tool. Refer to section 8.3
“Group settings” in the BAC-HD150 Setting Tool Instruction Book.
Also, register BAC-HD150 as a System Controller to the superior system controller.
(10)Use of AHC
BAC-HD150 does not support AHC. AHC cannot be controlled from BAC-HD150.
2000ms ( = 200ms 10 properties)
Read_Property_Multiple (10 properties) Read_Property
time
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2.1 Sample system configuration
(1) Sample system configuration when BAC-HD150 is connected to M-NET
M-NET: Mitsubishi Electric air conditioning control line
2 System configurations
HUB
BACnet®
BACnet®
M-NET
BAC-HD150
BMS
HUB : Switching HUB
Outdoor unit
Outdoor unit
Indoor unit
Indoor unit
ME remote controller
ME remote controller
LOSSNAY
LOSSNA
Y
LAN1
System controller
M-NET
M-NET
HUB
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(2) Sample system configuration when BAC-HD150 is connected to PAC-YG50ECA
M-NET: Mitsubishi Electric air conditioning control line
Notice:
The dual set point function is not supported by systems with connection to PAC-YG50ECA. When
using PAC-YG50ECA, enable “Old Model Compatibility Mode” and “Expansion Controller
Settings” on the BAC-HD150 Setting Tool to use the single set point function.
Refer to section 3.5 “Temperature setting objects” in this manual and section 8.2 “System
Settings” in BAC-HD150 Setting Tool Instruction Book for details.
㩷
㩷
㩷
㩷
㩷
㩷
BAC-HD150
HUB
㩷
㩷
㩷
㩷
㩷
㩷
㩷
㩷
㩷
㩷
HUB
HUB
LAN1
LAN2
24VDC
AG-150A
PAC-SC51KUA
PAC-YG50ECA
BACnet®
BACnet®
M-NET M-NET
M-NET
PAC-YG50ECA
M-NET M-NET
M-NET
BMS
Outdoor unit
Outdoor unit
Outdoor unit
Outdoor unit
Indoor unit
Indoor unit
ME remote controller
ME remote controller
ME remote controller
ME remote controller
LOSSNAY
LOSSNA
Y
Indoor unit
Indoor unit
LOSSNAY
LOSSNA
Y
PAC-YG50ECA
M-NET M-NET
M-NET
Outdoor unit
Outdoor unit
ME remote controller
ME remote controller
Indoor unit
Indoor unit
LOSSNAY
LOSSNA
Y
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2.2 Group configurations
BACnet®controls each group.
BACnet®contol hierarchy consists of M-NET number + Group number + Member number.
Refer to “3.4 Relations between objects and control items” for member number details.
(1) M-NET number
(a) When BAC-HD150 is connected to M-NET
Fixed to 01
(b) When BAC-HD150 is connected to PAC-YG50ECA
M-NET number (01-03)
(2) Group number
Multiple indoor units (IC) can be controlled as a target group. Group number range: 1-50
(3) Member number
Corresponds to Monitor/Operation items of air conditioners
BACnet®
IC
01
IC
02
IC
03
IC
04
IC
05
BAC-HD150 M-NET
LAN1
Group
No.01
Group
No.03
Building Management System
Air Conditioning system
Unit address
Group number
M-NET number
: 01
M-NET number is fixed to 1.
BAC-HD150 is connected to M-NET.
BACnet
®
IC
01
IC
02
IC
03
IC
04
IC
05
BAC-HD150
AG-150A
M-NET
LAN1
LAN2
Group
No.01
Group
No.03
Building Management System
Air Conditioning system
Unit address
Unit address
Group number
M-NET number
: 01
HUB
PAC-YG50ECA
00
IC
01
IC
02
IC
03
IC
04
IC
05
M-NET
Group
No.01
Group
No.03 Unit address
Unit address
Group number
M-NET number
: 02
PAC-YG50ECA
00
BAC-HD150 is connected to PAC-YG50ECA.
M-NET
Unit address
M-NET number
: 03
PAC-YG50ECA
00
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3.1 Basic Functions
BAC-HD150 has functions that communication from an air conditioning system is protocol converted to BACnet®
communication, that command from a Building Management System is converted and transmitted to an air conditioning
system, and that air conditioning system status data is collected and the status change is detected. BAC-HD150 also collects
data on air conditioning units operation status and transmits the data upon request from the building management system.
Refer to “3.4 Relations between objects and control items” for control item of BAC-HD150.
3.2 Communication protocol specifications
(1) General descriptions of protocol
BACnet®/IP which applied to ANSI/ASHRAE 135-2004 correspondingly on UDP/IP of Ethernet is used.
Ethernet is a registered trademark of Fuji Xerox, Inc.
(2) Ethernet header
Physical layer: Ethernet
Transmission medium: 10BASE-T
(3) IP header
Class C private address is recommended. (*1) Subnet Mask: 255.255.255.0
*1: Recommended value (range): [192.168.1.1] - [192.168.254.254]
Do not use [192.168.0.0] and [192.168.255.255] as a device address.
(4) UDP header
The default UDP port of unicast and broadcasting is set to 47808 (0xBAC0).
(5) BVLL header (BVLL: BACnet®Virtual Link Layer)
BVLC type (1 octet) Fixed to 0x81 (BVLL against BACnet®/IP)
BVLC function (1 octet) Unicast 0x0A
Broadcast 0x0B
BVLC length (2 octets) Variable (BVLL header (4 octets) + NPCI data length + APDU data length)
(Typical examples are listed above. Refer to ANSI/ASHRAE 135-2004 for details.)
(6) NPCI (NPCI: Network Layer Protocol Control Information)
Version (1 octet) Fixed to 0x01
Control (1 octet) Response is received. 0x04
No response 0x00
(Typical examples are listed above. Refer to ANSI/ASHRAE 135-2004 for details.)
(7) APDU (APDU: Application Layer Protocol Data Unit)
Data: 1024 octets or less
(Refer to ANSI/ASHRAE 135-2004 for details.)
3 Function specifications
Ethernet header IP header UDP header BVLL header NPCI APDU
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3.3 Objects
Supported object list is shown below.
: Supported
: Not supported
*1: Inside the brackets indicates control item for BU or AU group. (Refer to section 1.2 Restrictions/Cautions.)
*2: Use “Set Temp Auto” to control temperatures in the Auto mode for the dual set point indoor unit groups, using one
temperature setting. To use two different temperature settings, use “Set Temp Cool” and “Set Temp Heat” instead.
Object type Abbreviation Support Control item Notes
Accumulator 23 
Analog Input 0 AI Room Temp
[Water Temp] *1
Analog Output 1 
Analog Value 2 AV
Set Temp
Set Temp Cool
Set Temp Heat
Set Temp Auto
Set High Limit Setback Temp
Set Low Limit Setback Temp
[Set Water Temp]
*1
*2
Averaging 18 
Binary Input 3 BI
On Off State
Alarm Signal
Filter Sign
[Circulating Water Exchange Sign]
M-NET Communication State
Expansion Controller Communication State
*1
Binary Output 4 BO On Off Setup
Binary Value 5 BV
Filter Sign Reset
[Circulating Water Exchange Sign Reset]
Prohibition On Off
Prohibition Mode
Prohibition Filter Sign Reset
[Prohibition Circulating Water Exchange Sign Reset]
Prohibition Set Temperature
System Forced Off
*1
Calendar 6 
Command 7 
Device 8 DEV Device object of BAC-HD150
Event Enrollment 9 
File 10 
Group 11 
Life Safety Point 21 
Life Safety Zone 22 
Loop 12 
Multi-state Input 13 MI
Error Code
Operational Mode State
Fan Speed State
Air Direction State
Ventilation Mode State
Air To Water Mode State
Multi-state Output 14 MO
Operational Mode Setup
Fan Speed Setup
Air Direction Setup
Ventilation Mode Setup
Air To Water Mode Setup
Multi-state Value 19 
Notification Class 15 CLS Object for Event notification
Program 16 
Pulse Converter 24 
Schedule 17 
Trend Log 20 
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3.4 Relations between objects and control items
Object ID consists of object type + instance number.
Instance number consists of M-NET number, air conditioner group number, and member number.
31 22 21 0
BACnet®object type : Refer to the object type as shown in the table below.
Instance number (6 digits in decimal notation) : xx xx xx
BACnet®object type Instance number
Control item Object
type
Instance
number
Inactive Active Notes
Text-1 Text-2 Text-3 Text-4 Text-5 Text-6
On Off Setup BO xxxx01 Stop Run
On Off State BI xxxx02 Stop Run
Alarm Signal BI xxxx03 Normal Error
Error Code MI xxxx04 Normal
01: Normal 06: Electronic
02: Other errors system error
03: Refrigeration 07: Sensor fault
system fault 08: Communication
04: Water system error error
05: Air system error 09: System error
Operational Mode
Setup MO xxxx05 Cooling Heating Fan Auto Dry Setback *1,*2, *5, *6, *7, *8
Operational Mode State MI xxxx06 Cooling Heating Fan Auto Dry Setback *1,*2, *5,
*6, *7, *8
Fan Speed Setup MO xxxx07 Low High Mid 2 Mid 1 *3
Fan Speed State MI xxxx08 Low High Mid 2 Mid 1 *3
Room Temp
[Water Temp] AI xxxx09 °F/°C *10
Set Temp
[Set Water Temp] AV xxxx10 °F/°C *9, *10
Filter Sign
[Circulating Water
Exchange Sign]
BI xxxx11 OFF ON *10
Filter Sign Reset
[Circulating Water
Exchange Sign Reset]
BV xxxx12 Reset Void *10
Prohibition On Off BV xxxx13 Permit Prohibit
Prohibition Mode BV xxxx14 Permit Prohibit
Prohibition Filter Sign
Reset
[Prohibition Circulating
Water Exchange Sign
Reset]
BV xxxx15 Permit Prohibit *10
Prohibition Set
Temperature BV xxxx16 Permit Prohibit
M-NET Communication
State BI xxxx20 Normal Error
System
Forced
Off
individual BV xxxx21
Reset Execute
bundle BV 999921
Air Direction Setup MO xxxx22 Horizontal Downblow
60%
Downblow
80%
Downblow
100% Swing
Air Direction State MI xxxx23 Horizontal Downblow
60%
Downblow
80%
Downblow
100% Swing
Set Temp Cool AV xxxx24 °F/°C *4
Set Temp Heat AV xxxx25 °F/°C *4
Set Temp Auto AV xxxx26 °F/°C *4
Member number (01-99)
Group number (01-50, 99)
M-NET number (01-03)
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*1: When “Use Mode Type Dry” is set to “enabled” by using BAC-HD150 Setting Tool (abbreviated to Setting Tool below), “Dry”
can be used.
*2: “Setback” can be used when “Old Model Compatibility Mode” is disabled on BAC-HD150 Setting Tool.
*3: When “Use Fan Speed Type Mid1/Mid2” is set to “enabled” by using Setting Tool, “Mid1” and “Mid2” can be used.
*4: Selectable when “Old Model Compatibility Mode” is disabled on BAC-HD150 Setting Tool.
*5: Two types of AUTO modes (single set point and dual set points) are available when the dual set point function is effective.
The differences between the two are as follows.
• AUTO (single set point)
When the operation mode is set to AUTO, a single temperature setting is used to control indoor units.
• AUTO (dual set points)
When the operation mode is set to AUTO, two temperature settings are used to control indoor units.
Select the setting between AUTO (single set point) and AUTO (dual set points) from the remote controller. This setting
cannot be changed from BAC-HD150.
*6: The Setback function is not available depending on the type of units that are connected.
*7: Different temperature-setting objects are used for different operation modes when using the dual set point function.
*8: Refer to “Appendix outline of Auto (dual set points) and Setback modes” for the difference between the operation mode
AUTO (dual set points) and Setback.
*9: Temperature-setting objects to be used for single set point indoor unit groups
*10: Inside the brackets indicates control item for BU or AU group. (Refer to section 1.2 Restrictions/Cautions.)
Control item Object
type
Instance
number
Inactive Active Notes
Text-1 Text-2 Text-3 Text-4 Text-5 Text-6
Set High Limit
Setback Temp AV xxxx27 °F/°C *4, *6
Set Low Limit
Setback Temp AV xxxx28 °F/°C *4, *6
Ventilation Mode Setup MO xxxx35 Heat
exchange Bypass Auto
Ventilation Mode State MI xxxx36 Heat
exchange Bypass Auto
Air To Water Mode
Setup MO xxxx37 Heating Heating ECO Hot Water Antifreeze Cooling
Air To Water Mode
State MI xxxx38 Heating Heating
ECO Hot Water Antifreeze Cooling
Expansion Controller
Communication State BI xx9981 Normal Error
Operational Mode Types of temperature-setting objects
Cooling • Set Temp Cool (AV_xxxx24)
Heating • Set Temp Heat (AV_xxxx25)
Fan -
AUTO (single set point) • Set Temp Auto (AV_xxxx26)
(dual set points) • Set Temp Cool (AV_xxxx24)
• Set Temp Heat (AV_xxxx25)
Dry -
Setback Set High Limit Setback Temp (AV_xxxx27)
Set Low Limit Setback Temp (AV_xxxx28)
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: Controllable
 : Not controllable
*1: Outdoor unit errors will be detected as the errors of the entire groups that IC, KIC, AIC, LC, and FU belong to, to which the
outdoor units are connected.
SC and RC errors will not be treated as BAC-HD150 errors.
*2: The settable temperature ranges are as follows.
(The following tables show only the representative ranges. The settable range varies with the models.)
*3: Includes the FU (OA processing units) that are configured in the group but not interlocked with the indoor units.
*4: In the “ON/OFF”, “Mode”, “Set temp” prohibit functions, only “ON/OFF” prohibit function can be used with K-control indoor
units. “Mode” or “Set temp” prohibit functions synchronize with the state of “ON/Off ” prohibit function.
*5: K-control indoor unit does not support “Filter Sign Reset” prohibit function.
*6: Not available depending on the type of units that are connected.
*7: Inside the brackets indicates control item for BU or AU group. (Refer to section 1.2 Restrictions/Cautions.)
Control item Object type Instance
number
Model group Note
IC Group *3 LC Group BU.AU
Group
On Off Setup BO xxxx01
On Off State BI xxxx02
Alarm Signal BI xxxx03
Error Code MI xxxx04 *1
Operational Mode Setup MO xxxx05 
Operational Mode State MI xxxx06 
Fan Speed Setup MO xxxx07 
Fan Speed State MI xxxx08 
Room Temp
[Water Temp] AI xxxx09 *7
Set Temp
[Set Water Temp] AV xxxx10 *2, *7
Filter Sign
[Circulating Water Exchange Sign] BI xxxx11 *7
Filter Sign Reset
[Circulating Water Exchange Sign Reset ]BV xxxx12 *7
Prohibition On Off BV xxxx13 *4
Prohibition Mode BV xxxx14 *4
Prohibition Filter Sign Reset
[Prohibition Circulating Water Exchange Sign
Reset]
BV xxxx15 *5, *7
Prohibition Set Temperature BV xxxx16 *4
M-NET Communication State BI xxxx20
System Forced Off BV xxxx21
999921
Air Direction Setup MO xxxx22 
Air Direction State MI xxxx23 
Set Temp Cool AV xxxx24 
Set Temp Heat AV xxxx25 
Set Temp Auto AV xxxx26 
Set High Limit Setback Temp AV xxxx27 *6
Set Low Limit Setback Temp AV xxxx28 *6
Ventilation Mode Setup MO xxxx35 
Ventilation Mode State MI xxxx36 
Air To Water Mode Setup MO xxxx37 
Air To Water Mode State MI xxxx38 
Expansion Controller Communication State BI xx9981 
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(1) Indoor unit
(2) Air To Water
Mode Cooling Heating Auto Dry
Standard temp model
(single set point) 19-30°C 17-28°C 19-28°C 19-30°C
(dual set points) 19-35°C 4.5-28°C - 19-35°C
Mid temp model 14-30°C 17-28°C 17-28°C 14-30°C
Mode Heating Heating ECO Hot Water Anti-freez Cooling
Booster unit (BU) 30-50°C 30-45°C 30-70°C 10-45°C Invalid
HEX unit (AU) 30-45°C 30-45°C Invalid 10-45°C 10-30°C
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3.5 Temperature setting objects
Select the temperature setting objects below according to the indoor unit group configuration in a given air conditioning
system.
Refer to section 8.4.5 “Configuring the Object settings” in BAC-HD150 Setting Tool Instruction Book for details.
: Selectable
: Not selectable
*1: When the operation mode is set to “AUTO (single set point)” on the remote controller, this setting will be used as the set
temperature for the AUTO mode on BAC-HD150.
When the operation mode is set to “AUTO (dual set points)” on the remote controller, [Set Temp Cool (AV_xxxx24)] and
[Set Temp Heat (AV_xxxx25)] will be used as the set temperatures for the AUTO mode on BAC-HD150.
*2: Not available depending on the type of units that are connected.
(1) Monitoring and setting temperatures from BMS
When setting the temperature settings for single set point indoor unit groups from BMS, use [Set Temp (AV_xxxx10)]. If BMS
uses the dual set point objects to send commands to single set point indoor unit groups, BAC-HD150 will send an error to
BMS.
Use [Set Temp (AV_xxxx10)] and [Set TempCool (AV_xxxx24)]-[Set Low Limit SetbackTemp (AV_xxxx28)] temperature setting
objects for dual set point indoor unit groups.
(2) When the BMS supports only the single set point function
Enable “Old Model Compatibility Mode” of the BAC-HD150 Setting Tool. BAC-HD150 will start up in the single set point mode.
Refer to section 8.2 “System Settings” in BAC-HD150 Setting Tool Instruction Book for details.
Control item Object
type
Instance
number
Indoor unit group configuration
Notes
Single set point
group
Dual set point
group
Set Temp AV xxxx10
Set Temp Cool AV xxxx24 -
Set Temp Heat AV xxxx25 -
Set Temp Auto AV xxxx26 - *1
Set High Limit
Setback Temp AV xxxx27 - *2
Set Low Limit
Setback Temp AV xxxx28 - *2
BAC-HD150
BMS
AV_xxxx24~
AV_xxxx28
AV_xxxx10
AV_xxxx10
AV_xxxx24~
AV_xxxx28
BACnet®M-NET
Request
Request
No Request
Request
Temperature setting
commands are sent to
indoor unit group 1.
Temperature setting
commands are sent to
indoor unit group 2.
An error is returned.
If BMS uses the dual set point
objects to send commands to
single set point indoor unit
groups, BAC-HD150 will return
an error to BMS.
Indoor unit group 1
Dual set point groups
Indoor unit group 2
Single set point groups
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3.6 Services
The following table shows the supported services.
: Supported
 : Not supported
Initiate request: Provides services
Execute request: Receives and uses services
Service Initiate request Execute request
1. Alarm and Event Services
(1) Acknowlege Alarm Service 
(2) Confirmed COV Notification Service 
(3) Confirmed Event Notification Service 
(4) Get Alarm Summary Service 
(5) Get Enrollment Summary service 
(6) Get Event Information Service 
(7) Life Safety Operation Service 
(8) Subscribe COV Service 
(9) Subscribe COV Property Service 
2. File Access Services
(1) Atomic Read File Service 
(2) Atomic Write File Service 
3. Object Access Services
(1) Add List Element Service 
(2) Remove List Element Service 
(3) Create Object Service 
(4) Delete Object Service 
(5) Read Property Service 
(6) Read Property Conditional Service 
(7) Read Property Multiple Service 
(8) Read Range Service 
(9) Write Property Service 
(10) Write Property Multiple Service 
4. Remote Device Management Services
(1) Device Communication Control Service 
(2) Confirmed Private Transfer Service 
(3) Confirmed Text Message Service 
(4) Reinitialize Device Service 
5. Virtual Terminal Services
(1) VT-Open Service 
(2) VT-Close Service 
(3) VT-Data Service 
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: Supported
 : Not supported
Initiate request: Provides services
Execute request: Receives and uses services
Service Initiate request Execute request
6. Security Services
(1) Authenticate Service 
(2) Request Key Service 
7.Unconfirmed Services
(1)I-Am
(2)I-Have 
(3)Unconfirmed COV Notification Service 
(4)Unconfirmed Event Notification Service 
(5)Unconfirmed Private Transfer Service 
(6)Unconfirmed Text Message Service 
(7)Time Synchronization Service 
(8)UTC Time Synchronization Service 
(9)Who-Has 
(10)Who-Is
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3.7 Services per object
The following table shows the supported service per object.
INIT: Provides services
EXEC: Receives and uses services
: Supported
: Changeable using setting data
Object type
Service
Device
Analog
Input
Analog
Value
Binary
Input
Binary
Output
Binary
Value
Multi-State
Input
Multi-State
Output
Notification
Class
Confirmed COV Notification INIT
EXEC
Confirmed Event Notification INIT
EXEC
Get Event Information INIT
EXEC
Subscribe COV INIT
EXEC
Add List Element INIT
EXEC
Remove List Element INIT
EXEC
Read Property INIT
EXEC
Read Property Multiple INIT
EXEC
Write Property INIT
EXEC
Write Property Multiple INIT
EXEC
Device Communication Control INIT
EXEC
I-Am INIT
EXEC
I-Have INIT
EXEC
Unconfirmed COV Notification INIT
EXEC
Unconfirmed Event Notification INIT
EXEC
Time Synchronization INIT
EXEC
Who-Has INIT
EXEC
Who-Is INIT
EXEC
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3.8 Event service specifications
The following table shows the supported notifications for each object.
The Event notification is used to notify the Alarm and Event. The COV notification is used to notify the change of Present
Value.
Selection of “Confirmed” or “Unconfirmed” can be made for each notification target.
: Notification is settable using setting data
: Notification is not settable
*1: Inside the brackets indicates control item for BU or AU group. (Refer to section 1.2 Restrictions/Cautions.)
Control item Object ID Event
notification
COV
notification Notes
On Off Setup BO_xxxx01
On Off State BI_xxxx02
Alarm Signal BI_xxxx03
Error Code MI_xxxx04 
Operational Mode Setup MO_xxxx05 
Operational Mode State MI_xxxx06 
Fan Speed Setup MO_xxxx07 
Fan Speed State MI_xxxx08 
Room Temp
[Water Temp] AI_xxxx09 *1
Set Temp
[Set Water Temp] AV_xxxx10 *1
Filter Sign
[Circulating Water Exchange Sign] BI_xxxx11 *1
Filter Sign Reset
[Circulating Water Exchange Sign Reset ]BV_xxxx12 *1
Prohibition On Off BV_xxxx13 
Prohibition Mode BV_xxxx14 
Prohibition Filter Sign Reset
[Prohibition Circulating Water Exchange Sign Reset]
BV_xxxx15 *1
Prohibition Set Temperature BV_xxxx16 
M-NET Communication State BI_xxxx20
System Forced Off BV_xxxx21
BV_999921 
Air Direction Setup MO_xxxx22 
Air Direction State MI_xxxx23 
Set Temp Cool AV_xxxx24 
Set Temp Heat AV_xxxx25 
Set Temp Auto AV_xxxx26 
Set High Limit Setback Temp AV_xxxx27 
Set Low Limit Setback Temp AV_xxxx28 
Ventilation Mode Setup MO_xxxx35 
Ventilation Mode State MI_xxxx36 
Air To Water Mode Setup MO_xxxx37 
Air To Water Mode State MI_xxxx38 
Expansion Controller Communication State BI_xx9981
Notification Class CLS_xxxxxx 
Device DEV_xxxxxx 
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3.9 Error Code
The following table shows the details in the Present_Value property of the Error Code (MI_xxxx04).
No. MI_xxxx04
PV State M-NET Error Code
1 1 Normal 8000 or all the codes except
No.2 ~ No.9
2 2 Other errors 0000 ~ 0999
6000 ~ 6499, 6750 ~ 6779
3 3 Refrigeration system fault 1000 ~ 1999
4 4 Water system error 2000 ~ 2999
5 5 Air system error 3000 ~ 3999
6 6 Electronic system error 4000 ~ 4999
7 7 Sensor fault 5000 ~ 5999
8 8 Communication error 6500 ~ 6749, 6780 ~ 6999
9 9 System error 7000 ~ 7999
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