Carrier 40VM Series v2 Installation Manual
en
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 17-40VM900052-01 Printed in U.S.A. Form 40VM-52SI R1 Pg 1 10-17 Replaces: 40VM-52SI
Installation and Operation Manual Part Number 40VM900052
For Commercial Use Only
CONTENTS
Page SAFETY PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . 2 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 CONNECTION DESCRIPTIONS . . . . . . . . . . . . . . . . . . 3 Installation of the BACnet interface. . . . . . . . . . . . . . . 3 SETTING NETWORK ADDRESS. . . . . . . . . . . . . . . . . . 5 INIITAL STARTUP AND PASSWORD CHANGE. . . . . 5 HOMEPAGE FUNCTION DESCRIPTION. . . . . . .. . . . . 6 BASIC CONFIGURATION . . . .. . . . . . . . . . . . . . . . . . . . .6 Controller Configuration. . . . . . . . . . . . . . . . . . . . . . . . 7 Network Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . 7 BACnet Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . 8 Date and Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Software Update. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Reboot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 IP Address Hard Reset. . . . . . . . . . . . . . . . . . . . . . . 9 OBJECT DESCRIPTION OF BACNET COMMUNICATION . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . 9 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Device ID. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Indoor Unit Objects. . . . . . . . . . . . . . . . . . . . . . . . . . 10 Output Class Variable. . . . . . . . . . . . . . . . . . . . . . . . 11 Running Mode Setting. . . . . . . . . . . . . . . . . . . . . . . . 12 Fan Speed Setting. . . . . . . . . . . . . . . . . . . . . . . . . . .12 Vertical Swing Setting. . . . . . . . . . . . . . . . . . . . . . . . .13 Auto Mode Dual Set Point Heating Temperature
Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Cooling Mode Lower Temperature Lock Value . . . . 14 Heating Mode Higher Temperature Lock Value .. . . 14 Mode Limit Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Fan Speed Lock Setting . . . . . . . . . . . . . . . . . . . . . . . 15 Remote Control Lock Setting . . . . . . . . . . . . . . . . . . . 16 Wired Controller Lock Setting. . . . . . . . . . . . . . . . . . . 16 Swing Lock Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Input Variables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Set Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Indoor Unit Operation Mode. . . . . . . . . . . . . . . . . . . . 17 Indoor Unit On/Off State. . . . . . . . . . . . . . . . . . . . . . . 17 Indoor Unit Fan Speed State. . . . . . . . . . . . . . . . . . . 18 Auto Mode Dual Set Point Cooling Temperature
Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Auto Mode Dual Set Point Heating Temperature
Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Cooling Mode Lower Temperature Lock Value . . . . 18 Heating Mode Higher Temperature Lock Value .. . . 19 Fault Codes .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Fault Alarm Status. . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Horizontal Swing State. . . . . . . . . . . . . . . . . . . . . . . .20 Vertical Swing Status. . . . . . . . . . . . . . . . . . . . . . . . . .20 Mode Limit Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 On/Off Limit Status . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Indoor Unit Fan Speed Lock Status. . . . . . . . . . . . . . 21 Evaporator Temperature. . . . . . . . . . . . . . . . . . . . . . . 21 Remote Control Lock Status. . . . . . . . . . . . . . . . . . . .21 Wired Controller Lock Status. . . . . . . . . . . . . . . . . . . .21 Swing Lock Status. . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Outdoor Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Output Variables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Outdoor Unit Output Capacity Limit. . . . . . . . . . . . . . 23 Group Control Shutdown Settings. . . . . . . . . . . . . . . 23 Indoor Unit Fan Speed Set when Indoor Unit Cooling
Capacity is 0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Indoor Unit Fan Speed Set when Indoor Unit Heating
Capacity is 0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Temperature Difference when Indoor Unit Dry Contact
4 is On. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Temperature Difference when Indoor Unit Dry Contact
4 is Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Delay of Determine Time when Indoor Unit Dry Con-
tact 4 is On. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Outdoor Unit Refrigeration System Operation Mode . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Outdoor Unit On/Off Mode. . . . . . . . . . . . . . . . . . . . . .25 Outdoor Ambient Temperature . . . . . . . . . . . . . . . . . 25 Speed of Outdoor Fan Motor 1 . . . . . . . . . . . . . . . . . 26 Speed of Outdoor Fan Motor 2 . . . . . . . . . . . . . . . . . 26 Compressor Speed . . . . . . . . . . . . . . . . . . . . . . . . . .26 Discharge Temperature 1 . . . . . . . . . . . . . . . . . . . . . .26 Discharge Temperature 2 . . . . . . . . . . . . . . . . . . . . . .26 Discharge Temperature 3 . . . . . . . . . . . . . . . . . . . . . .27 High Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Low Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Outdoor Unit Fault Code . . . . . . . . . . . . . . . . . . . . . . .27 Outdoor Fault Alarm Status. . . . . . . . . . . . . . . . . . . . .28 COV. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 WEB INTERFACE FUNCTIONS . . . . . . . . . . . . . . . . . . 29 Renaming Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 Individual Unit Control . . . . . . . . . . . . . . . . . . . . . . . . .29 Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 Alt-Ctrl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 All-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 Schedule. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 User Accounts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 Password. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 Restore Factory Settings. . . . . . . . . . . . . . . . . . . . . . .31
40VM Series VRF (Variable Refrigerant Flow) System
BACnet Interface
2
SAFETY PRECAUTIONS
Read and follow manufacturer instructions carefully. Follow all local electrical codes during installation. All wiring must conform to local and national electrical codes. Improper wiring or installation may damage thermostat.
Understand the signal words DANGER, WARNING, and CAUTION. DANGER identifies the most serious hazards, which will result in severe personal injury or death. WARNING signifies hazards that could result in personal injury or death. CAUTION is used to identify unsafe practices, which would result in minor personal injury or product and property damage.
Recognize safety information. This is the safety-alert symbol ( ). When this symbol is displayed on the unit and in instructions or manuals, be alert to the potential for personal injury. Installing, starting up, and servicing equipment can be hazardous due to system pressure, electrical components, and equipment location.
GENERAL The VRF (variable refrigerant flow) BACnet Interface is a wall-mounted, low-voltage controller that provides site- level control of multiple VRF systems. The BACnet Interface provides BACnet IP communications with VRF system(s). In addition, it provides central management of
mode, setpoint, and scheduling of indoor units (IDUs) through its web browser interface.
The BACnet Interface is available for use with the VRF (variable refrigerant flow) outdoor units / systems listed in Table 1. Refer to Table 2 for general specifications.
Table 1: BACnet Accessory Usage
Table 2: Specifications
UNIT SIZES 38VMAR Heat Recovery System
072,096,120,144, 168, 192, 216, 240, 264, 288, 312, 336
38VMAH Heat Pump System
036, 048, 060, 072, 096, 120, 144, 168, 192, 216, 240, 264, 288, 312, 336, 360, 384, 408, 432
Power Supply 24VAC Power Consumption 20W
Dimensions H 12-1/2 W 9-7/8 D 2-1/2
Net Weight 5.6 lbs Number of X/Y Bus Lines 4
Max. Refrigerant Systems / IDUs Per Line 8/64
LAN Higher than category 5, UTP
3
INSTALLATION
BACnet Interface should be mounted: at a location that allows easy access. on a section of wall without water or drainage pipes. BACnet Interface should NOT be mounted: near heat sources such as direct sunlight, heaters,
dimmer switches, and other electrical devices. There are three installation methods as shown in Figure 1. Do not install the unit in any other orientation. NOTE: Screws are not included. The contractor must purchase screws for installation.
Fig. 1 Installation Layout
CONNECTION DESCRIPTIONS
Fig. 2 BACnet Interface Bottom View
Fig. 3 BACnet Interface Top View
Table 3 Bacnet Interface Connectors
Installation of the BACnet Interface To install the BACnet interface, perform the following procedure: 1. Turn off all power to the outdoor units, indoor units, and
MDC.
2. Control Wire: Use 16 to 20 AWG (American Wire Gage), stranded twisted pair shielded 2-core wiring (copper wire). Be sure the distance between the controller and the furthest outdoor unit is not more than 3939 feet. Field-provided 24VAC Power Wire: Use copper wire rated for at least 1A. Follow the applicable electrical codes.
3. Mount the interface to the surface according to allowed orientations shown in Figure 4.
WIRE BACNET 1. Control Wire: Use 16 to 20 AWG (American Wire
Gage), stranded twisted pair shielded 2-core wiring (copper wire). Note: The controller has 4 central control bus (X/Y) lines. Each line can support up to 8 refrigerant systems and 64 indoor units, maximum.
2. Using control wire, connect outdoor units (X/Y central control bus terminals) in a daisy chain configuration. Connect terminating end to the Central Controllers designated X/Y lines (0-3).
3. For larger heat pump systems with dual or triple modules on a refrigerant system, wire X/Y daisy chain only to the Header outdoor unit of each refrigerant system. See Figure 4.
Name Function R 24VAC Power C 24VAC Common X X Conductor, X/Y Bus (no 1-3) Y Y Conductor, X/Y Bus (no 1-3) E Shield Conductor, X/Y Bus (no 1-3)
Ethernet Local Area Network Connection
WARNING
Electrical shock can cause personal injury and death. Before installing thermostat, shut off all power to this equipment during installation. There may be more than one power disconnect. Tag all disconnect locations to alert others not to restore power until work is completed.
CAUTION
Failure to follow this caution may result in equipment damage or improper operation. Improper wiring or installation may damage the thermostat. Check to make sure wiring is correct before proceeding with installation or turning on unit.
4
Fig. 4 System Wiring Diagram
5
SETTING NETWORK ADDRESS
Make sure each outdoor unit / refrigerant system has its own unique network address: 0-7. Set by turning rotary encoders shown below (ENC4 for 3-Phase Heat Pump and Heat Recovery; ENC2 for single Phase Heat Pump). For larger Heat Pump systems with dual or triple modules, set all addresses the same for each module within the refrigerant system.
Fig. 5 Heat Pump ENC4
Fig. 6 Heat Recovery ENC4
Fig. 7 Single Phase Heat Pump ENC2
INITIAL STARTUP AND PASSWORD CHANGE
The BACnet Interface and the computer are connected to the same LAN.
The default IP address of BACnet is 192.168.1.8. 1. Change the IP address of the computer to the same
network segment as BACnet: i.e. 192.168.1.x (x cannot be 8).
2. Enter 192.168.1.8 in browser.
Fig. 8 Login Screen The BACnet interface provides one administrator and 384
user privileges. The administrators login is Admin and the initial password is 123456. When using the initial password to login, the system will remind: your password is not secure, please change it!
Fig. 9 Change Password Screen
NOTES:
1. The computer operating system currently supports Windows 7 (32-bit, 64-bit) and later.
2. The web browser currently supports IE9 and later, Google Chrome18.0 and later, and Firefox1.5 and later.
3. The computer screen resolution requirement is no less than 1280 * 800.
ENC1
ENC3ENC4
SIGNAL IN
ENC3S12 ON
IN_NUM
S10ENC4
CT1
33
MAIN BOARD
BLACK
BLUE
GRAY
BLACK
BLACK
6
HOMEPAGE FUNCTION DESCRIPTION
BASIC CONFIGURATION
From the Home Screen, click the Configuration Icon to enter settings:
Fig. 10 Homepage
Figure Callouts:
1. Current user information
2. Shortcut menu bar
3. Area bar
4. Equipment status field
Fig. 11 Configuration Icon
7
Controller Configuration In the drop-down menus, you can select the mode of each of the Interfaces four X/Y/E bus- es. Buses can be set to Polling Mode, Listening Mode, or Idle. Click Apply after making desired changes.
Fig. 12 Controller Configuration
Network Configuration This page is used to set the static IP address, subnet mask, and default gateway of the interface.
Fig. 13 Network Configuration
8
BACnet Configuration This menu is used to select the virtual BACnet network number and UDP port.
Fig. 14 BACnet Configuration
Date and Time This menu is used to set the date and time within the BACnet Interface. Enter time in 24-hour format.
Fig. 15 Date and Time
Software Update This feature is for updating the system firmware. 1. As necessary, obtain firmware update file from factory representative. 2. Store on PC connecting to BACnet Interface. This file will be a .tar extension. 3. Select Choose File to browse to the .tar file directory in the PC. 4. Select Upload; and the system will install the update and prompt to restart.
Fig. 16 Software Update
9
Reboot Clicking the Reboot icon will prompt for confirmation. Click OK to proceed with reboot.
Fig. 17 Reboot Confirmation
IP Address Hard Reset After powering on the device, connect XYE port 0 and port 1 as shown in the figure below. After restarting, the IP address will be reset to 192.168.1.8, and the remaining user settings will be retained.
Fig. 18 Connect XYE Port 0 and Port 1
OBJECT DESCRIPTION OF BACNET COMMUNICATION
Introduction The connected VRF system(s) have sophisticated internal controls that manage the capacity among individual indoor units. When integrated to a BMS (building management system), the VRF system(s) will only need to receive basic commands, such as mode and setpoint, based on the buildings schedule. It is not necessary for the BMS to decide how much capacity is required for a certain zone, or what fan speed is required to satisfy a zone, which may be typical for a traditional, fixed-speed system.
The BACnet Interface includes a built-in Web Interface that functions as a stand-alone central controller. Therefore, it is possible for commands to be sent to the VRF system(s) from this Web Interface, as well as any commands sent over BACnet.
These multiple sources of commands should be coordinated so they do not conflict. The VRF system(s) will follow the last command receivedwhether from the Web Interface or BACnet.
Device ID Each Indoor Unit connected to the BACnet Interface needs to have a unique ID in the BACnet / IP building network. RULE OF ID GENERATION ID = (virtual BACnet
network number) (port number) (Indoor Unit network address)
ID = NNNPAAA
NNN = Virtual BACnet Network Number The BACnet network virtual number of the Interface is set using the web interface;
P = XYE Port number 0 ~ 3, are counted (Left to Right) away from the Ethernet port
AAA = Network address of unit Indoor units: 0 ~ 95 Outdoor units: 96 ~ 127
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Indoor Unit Objects There are 36 BACnet objects for each indoor unit for the BACnet building system to control.
Table 4 Indoor Unit Objects Name Instance Number Description
IDU_AI_RoomTemp AI 1 Room temperature status IDU_AI_SetTemp AI 2 Setting temperature status
IDU_AI_DualPointCoolingStatus AI 3 Dual point cooling status IDU_AI_DualPointHeatingStatus AI 4 Dual point heating status
IDU_AI_CoolTempLimitStatus AI 5 Cooling temperature limit status IDU_AI_HeatTempLimitStatus AI 6 Heating temperature limit status
IDU_AI_MalfunctionCode AI 7 Malfunction code IDU_AI_OutletAirTemp (IDU_AI_T2Temp) AI 8 Outlet air temperature or T2 temperature
IDU_BI_OnOffStatus BI 1 On/Off status IDU_BI_Alarm BI 2 Alarm identification
IDU_BI_VaneHorizontalStatus BI 3 Vane horizontal status IDU_BI_VaneVerticalStatus BI 4 Vane vertical status
IDU_BI_RCLockStatus BI 5 RC lock status IDU_BI_ControllerLockStatus BI 6 Controller lock status
IDU_BI_SwingLockStatus BI 7 Swing lock status
IDU_MI_ModeStatus MI 1 Mode status IDU_MI_FanSpeedStatus MI 2 Fan speed status IDU_MI_ModeLimitStatus MI 3 Mode lock status IDU_MI_OnOffLimitStatus MI 4 On/Off lock status IDU_MI_FanLockStatus MI 5 Fan lock status
IDU_A0_TempSetting A0 1 Setting temperature IDU_A0_DualPointCoolingSetting A0 2 Dual point cooling setting IDU_A0_DualPointHeatingSetting A0 3 Dual point heating setting
IDU_A0_CoolTempLimitSetting A0 4 Cooling temperature limit IDU_A0_HeatTempLimitSetting A0 5 Heating temperature limit
IDU_B0_OnOffSetting B0 1 On/Off setting IDU_B0_VaneHorizontalSetting B0 2 Vane horizontal setting
IDU_B0_VaneVerticalSetting B0 3 Vane vertical setting IDU_B0_RCLockSetting B0 4 RC lock setting
IDU_B0_ControllerLockSetting B0 5 Controller lock setting IDU_B0_SwingLockSetting B0 6 Swing lock setting
IDU_M0_ModeSetting M0 1 Mode setting IDU_M0_FanSpeedSetting M0 2 Fan speed setting IDU_M0_ModeLimitSetting M0 3 Mode lock setting IDU_M0_OnOffLimitSetting M0 4 On/Off lock setting IDU_M0_FanLockSetting M0 5 Fan lock setting
11
Description:
Object-identifier: BACnet ID of the unit
Object-name: The default name is Device-ID, which can be changed in the Web Interface of the 40VM900052 BACnet Interface. The device name will be synchronized to the Object-name after rebooting the Interface.
Model-name: model information.
UNKNOWN IDU TYPE
If the model connected is not supported by the 40VM900053 BACnet interface, the Unknown IDU Type is displayed.
Output Class Variables Output variable is readable and writable sent by the
BACnet Interface to the outdoor unit.
Object-identifier:Binary-Output 1
Object-name : IDU_BO_OnOffSetting Present-Value: a readable and writable value, stands for
the on/off status of this indoor unit.
The first time the Interface is powered on, it sends a control command: The operation mode, the set fan speed, and the set temperature are sent according to the last operation record.
When the indoor unit is powered on for the first time, the Interface will send the default command of 74F and low fan speed.
Table 5 Device Information Property Name Property Value object-identifier (device, 190000)
object-name room101 object-type device
system-status operational vendor-name CAC
vendor-identifier 544 model-name IDU, type-1, HWALL
firmware-revision 2.0 application-software-version 2.0
protocol-version 1 protocol-revision 7
protocol-conformance-class 3 protocol-services-support (F,F,F,F,F,F,F,F,F,F,F,F,T,F,T,T,T,F,F,F,F,...)
protocol-object-types (T,T,T,T,T,F,F,T,F,F,F,F,T,T,F,F,F,F,F,T,F,...) object-list {(device, 190000), (analog-input, 1)...}
max-apdu-length-accepted 1476 segmentation-supported segmented-both apdu-segment-timeout 2000
apdu-timeout 63000 number-of-apdu-retries 3 device-address-binding {}
Table 6 Supported Indoor Units IDU Type Number IDU Type
0 CASS 1 HWALL 2 MDUCT 3 LDUCT 4 VERT 5 HDUCT 6 SCASS 7 UCF 8 FLRCR
10 OA 11 ERV I/O
Table 7 IDU On/Off Setting Name Value
object-identifier (B0, 1) object-name IDU_BO_OnOffSetting object-type binary-output description On/Off Setting status-flags (F,F,F,F) event-state normal
out-of-service F device-type
present-value inactive inactive-text off active-text on
polarity normal reliability no-fault-detected
priority-array {NULL, NULL, NULL, NULL...} relinquish-default inactive
Table 8 Present Value state number
power off 0 power up 1
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Running Mode Setting If the Indoor Unit supports automatic mode, the Interface automatically detects the type of system and Indoor Unit it is connected to.
Object-identifier : Multistate-Output 1
Object-name : IDU_MO_ModeSetting Present-Value: a readable and writable value stands for
the mode of this indoor unit.
Fan Speed Setting
Object-identifier : Multistate-Output 2
Object-name : IDU_MO_FanSpeedSetting Present-Value: a readable and writable value stands for
the air speed of this indoor unit.
Multistate-Output 1 IDU_MO_ModeSetting: If Multistate-Output 1 IDU_MO_ModeSetting is set to shut down or dehumidify mode, the variable set value is invalid.
Object-identifier : Analog-Output 1
Object-name : IDU_AO_TempSetting Present-Value : 62~86 : 54~86
Table 9 IDUs that Support Automatic Mode Property Name Property Value object-identifier (multistate-output, 1)
object-name IDU_MO_ModeSetting object-type multistate-output
present-value 1 description Mode Setting status-flags (F,F,F,F) event-state normal
out-of-service F number-of-states 6
state-text {OFF, FAN, COOL, HEAT, AUTO, DRY} priority-array {NULL, NULL, NULL, NULL...}
relinquish-default 1 reliability no-fault-detected
Table 10 IDUs that do not Support Automatic Mode Property Name Property Value object-identifier (multistate-output, 1)
object-name IDU_MO_ModeSetting object-type multistate-output
present-value 3 description Mode Setting status-flags (F,F,F,F) event-state normal
out-of-service F number-of-states 6
state-text {OFF, FAN, COOL, HEAT, Reserved, DRY} priority-array {NULL, NULL, NULL, NULL...}
relinquish-default 1 reliability no-fault-detected
Table 11 Present Value Models that support
automatic mode Models that do not
support automatic mode Number
Power off Power off 1 Fan Fan 2
Cooling Cooling 3 Heating Heating 4
Auto N/A 5 Dry Dry 6 ERV New Indoor Units
Table 12 Present Value Models that support
automatic mode Models that do not
support automatic mode Number
OFF OFF 1 ON FAN 2
Reserved Cooling 3 Reserved Heat 4 Reserved Reserved 5 Reserved Reserved 6
Table 13 Fan Speed Setting Property Name Property Value object-identifier (multistate-output, 2)
object-name IDU_MO_FanSpeedSetting object-type multistate-output
present-value 4 description Fan Speed Setting status-flags (F,F,F,F) event-state normal
out-of-service F number-of-states 5
state-text {OFF, LOW, MEDIUM, HIGH, AUTO} priority-array {NULL, NULL, NULL, NULL...}
relinquish-default 1 reliability no-fault-detected
Table 14 Present Value Speed Setting Number
off 1 low 2 med 3 high 4 auto 5
Table 15 Temperature Setting Name Value
object-identifier (A0, 1) object-name IDU_AO_TempSetting object-type analog-output description Temperature Setting status-flags (F,F,F,F) event-state normal
out-of-service F device-type
present-value 22 units degrees-Celsius
reliability no-fault-detected min-press-value 12 max-press-value 30
resolution 1 priority-array {NULL, NULL, NULL, NULL...}
relinquish-default 25 cov-increment 1
13
Multistate-Output 1 IDU_MO_ModeSetting units: Present-Value: a readable and writable value, stands for the
temperature of this indoor unit. Cooling mode: The temperature setting range is Fahrenheit:
62 ~ 86. Heating mode, the temperature setting range is Fahrenheit:
54 ~ 86. If Multistate-Output 1 IDU_MO_ModeSetting is set to
power off or Fan Mode, the variable set value is invalid.
Horizontal Swing Setting
Object-identifier : Binary-Output 2
Object-name : IDU_BO_VaneHorizontalSetting Present-Value: a readable and writable value stands for
the settings of Horizontal Swing of this indoor unit.
For indoor units that do not support horizontal swing, the variable set value is invalid.
Vertical Swing Setting
Object-identifier : Binary-Output 3
Object-name : IDU_BO_VaneVerticalSetting Present-Value: a readable and writable value stands for
the settings of Vertical Swing of this indoor unit.
For indoor units that do not support vertical swiveling, the variable set value is invalid.
(Only effective on the model that has auto mode function)
Object-identifier : Analog-Output 2
Object-name : IDU_AO_DualPointCoolingSetting Present-Value: a readable and writable value stands for
present the cooling temperature settings in automatic mode of this indoor unit. Fahrenheit: 62~86.
This variable is valid only when the indoor unit operation mode is set to the automatic mode.
Analog-Output 1 IDU_O_TempSetting
Analog-Output 2 IDU_AO_DualPointCoolingSetting
Analog-Output 3 IDU_AO_DualPointHeatingSetting
Analog-Output 2 IDU_AO_DualPointCoolingSetting
Analog-Output 3 IDU_AO_DualPointHeatingSetting When the mode is auto, the set temperature is no longer
executed according to Analog-Output1 IDU_O_TempSetting, and both the Analog-Output 2 IDU_AO_DualPointCoolingSetting and the Analog-Output 3 IDU_AO_DualPointHeatingSetting must be set.
When the room temperature reaches the set value of Analog-Output 2 IDU_AO_DualPointCoolingSetting, the indoor unit operates in the cooling mode. When the indoor temperature reaches the set value of Analog-Output 3 IDU_AO_DualPointHeatingSetting, the unit operates in heating mode.
Table 15 Horizontal Swing Setting Name Value
object-identifier (B0, 2)
object-name IDU_BO_VaneHorizontalSettin g
object-type binary-output description Vane Horizontal Setting status-flags (F,F,F,F) event-state normal
out-of-service F device-type
present-value inactive inactive-text off active-text on
polarity normal reliability no-fault-detected
polarity-array {NULL, NULL, NULL, NULL...} relinquish-default inactive
Table 16 Present Value Status Number
Horizontal Swing off 0 Horizontal Swing on 1
Table 17 Vertical Swing Setting - Objects that Support Vertical Swing
Name Value object-identifier (B0, 3)
object-name IDU_BO_VaneVerticalSetting object-type binary-output description Vane Vertical Setting status-flags (F,F,F,F) event-state normal
out-of-service F device-type
present-value inactive inactive-text off active-text on
polarity normal reliability no-fault-detected
polarity-array {NULL, NULL, NULL, NULL...} relinquish-default inactive
Table 18 Present Value Status Number
Vertical Swing off 0 Vertical Swing on 1
Table 19 Objects that do not Support Vertical Swing Name Value
object-identifier (A0, 1) object-name IDU_AO_DualPointCoolingSetting object-type analog-output description Dual Point (Cooling) Setting status-flags (F,F,F,F) event-state normal
out-of-service F device-type
present-value 65 units degrees-Fahrenheit
reliability no-fault-detected min-press-value 62 max-press-value 86
resolution 1 priority-array {NULL, NULL, NULL, NULL...}
relinquish-default 75 cov-increment 1
14
Auto Mode Dual Set Point Heating Temperature Setting
(Only effective on the model has auto mode function)
Object-identifier : Analog-Output 3
Object-name : IDU_AO_DualPointHeatingSetting Present-Value: a readable and writable value, stands for
present heating temperature setting value of this indoor unit. Centigrade: 12~30; Fahrenheit 54~86.
This variable is valid only when the indoor unit operation mode is set to the automatic mode.
Analog-Output 1 IDU_O_TempSetting
Analog-Output 2 IDU_AO_DualPointCoolingSetting
Analog-Output 3 IDU_AO_DualPointHeatingSetting
Analog-Output 2 IDU_AO_DualPointCoolingSetting
Analog-Output 3 IDU_AO_DualPointHeatingSetting When the mode is auto, the set temperature is no longer
executed according to Analog-Output 1 IDU_O_TempSetting, and both the Analog-Output 2 IDU_AO_DualPointCoolingSetting and the Analog-Output 3 IDU_AO_DualPointHeatingSetting must be set.
When the room temperature reaches the set value of Analog-Output 2 IDU_AO_DualPointCoolingSetting, the indoor unit operates in the cooling mode. When the indoor temperature reaches the set value of Analog-Output 3 IDU_AO_DualPointHeatingSetting, the unit operates in heating mode.
(Temperature units, automatic identification)
Cooling Mode Lower Temperature Lock Value
Object-identifier : Analog-Output 4
Object-name : IDU_AO_CoolTempLimitSetting Present-Value: a readable and writable value that stands for
the present lower temperature setting value limit under cooling mode of this indoor unit.
Fahrenheit: 62~86. 0 represents the lower limit of the unlocking cooling
temperature.
Analog-Output 1 IDU_AO_TempSetting
Analog-Output 2 IDU_AO_DualPointCoolingSetting Example: If the variable is set to 24 degrees, the IDU_AO_TempSetting setting can only be > 24 degrees in the cooling mode, and will not be executed when the set value is < 24 degrees. Analog-Output 2: The IDU_AO_DualPointCoolingSetting setting can only be set to > 24 degrees in automatic mode. When the set value is < 24 degrees, the indoor unit will not be executed. (temperature unit, automatic identification)
Heating Mode Higher Temperature Lock Value
Table 20 Auto Mode Dual Set Point Heating Temperature Setting
Name Value object-identifier (A0, 3)
object-name IDU_AO_DualPointHeatingSetting object-type analog-output description Dual Point (Heating) Setting status-flags (F,F,F,F) event-state normal
out-of-service F device-type
present-value 65 units degrees-Fahrenheit
reliability no-fault-detected min-press-value 54 max-press-value 86
resolution 1 priority-array {NULL, NULL, NULL, NULL...}
relinquish-default 70 cov-increment 1
Table 21 Cooling Mode Lower Temperature Lock Value
Name Value object-identifier (A0, 4)
object-name IDU_AO_CoolTempLimitSetting object-type analog-output description Cooling Temperature Limit Setting status-flags (F,F,F,F)
event-state normal out-of-service F device-type
present-value 0 units degrees-Celsius
reliability no-fault-detected min-press-value 0 max-press-value 255
resolution 1 priority-array {NULL, NULL, NULL, NULL...}
relinquish-default 255 cov-increment 1
Table 22 Heating Mode Higher Temperature Lock Value
Name Value object-identifier (A0, 5)
object-name IDU_AO_HeatTempLimitSetting object-type analog-output description Heating Temperature Limit Setting status-flags (F,F,F,F) event-state normal
out-of-service F device-type
present-value 0 units degrees-Celsius
reliability no-fault-detected min-press-value 0 max-press-value 255
resolution 1 priority-array {NULL, NULL, NULL, NULL...}
relinquish-default 255 cov-increment 1
Table 21 Cooling Mode Lower Temperature Lock Value
Name Value
15
Object-identifier : Analog-Output 5
Object-name : IDU_AO_HeatTempLimitSetting Present-Value: a readable and writable value that stands for
the present upper temperature setting value limit under heating mode of this indoor unit.
Fahrenheit 62~86. 0 represents the unlock heating temperature upper limit.
Analog-Output 1 IDU_AO_TempSetting
Analog-Output 3 IDU_AO_DualPointHeatingSetting
Example: If the variable is set to 24 degrees, the IDU_AO_TempSetting1 setting can only be > 24 degrees in the cooling mode, and will not be executed when the set value is <24 degrees.
Analog-Output 3: IDU_AO_DualPointCoolingSetting setting can only be set to > 24 degrees in automatic mode. When set value is < 24 degrees, indoor unit will not be executed.
(Units: temperature unit, automatic identification)
Mode Limit Setting
Object-identifier : Multistate-Output 3
Object-name : IDU_MO_ModeLimitSetting Present-Value: readable and writable variable that
represents present set value of mode limit of this indoor unit.
In locked cooling state, the indoor unit will only respond to the cooling, air supply, dehumidification, and power off modes. If the unit receives a heating command, it will shut down.
In the locked heating state, the indoor unit will only respond to heating and power off mode commands. If the unit receives other command of mode settings, it will shut down.
Object-identifier : Multistate-Output 4
Object-name : IDU_MO_OnOffLimitSetting Present-Value: readable and writable variable that
represents present On/Off lock setting of this indoor unit.
When on is locked, this indoor unit cannot be shut down. When off is locked, this indoor unit cannot be turned on.
Fan Speed Lock Setting
Object-identifier : Multistate-Output 5
Object-name : IDU_MO_FanLockSetting Present-Value: a readable and writable variable that
represent the present fan speed lock setting of this indoor unit.
When a specific fan speed is locked, the indoor unit can only run in unlocked fan speeds or auto Fan. The indoor unit fan will not response to locked command.
Table 23 Mode Limit Setting Property Name Property Value object-identifier (MO, 3)
object-name IDU_MO_ModeLimitSetting object-type multistate-output
present-value 1 description Mode Limit Setting status-flags (F,F,F,F) event-state normal
out-of-service F number-of-states 3
state-text {UNLOCK, LOCK COOL, LOCK HEAT} priority-array {NULL, NULL, NULL, NULL...}
relinquish-default 1 reliability no-fault-detected
Table 24 Present Value Status Value
unlock on/off limit 1 lock on 2 lock off 3
Table 25 On/Off Limit Setting Name Value
object-identifier (MO, 4) object-name IDU_MO_OnOffLimitSetting object-type multistate-output
present-value 1 description On/Off Limit Setting status-flags (F,F,F,F) event-state normal
out-of-service F
Table 25 On/Off Limit Setting Name Value
number-of-states 3 state-text {UNLOCK, LOCK ON, LOCK OFF}
priority-array {NULL, NULL, NULL, NULL...} relinquish-default 1
reliability no-fault-detected
Table 26 Present Value Status Value
unlock on/off limit 1 lock on 2 lock off 3
Table 27 Fan Speed Lock Setting Property Name Property Value object-identifier (multistate-output, 5)
object-name IDU_MO_FanLockSetting object-type multistate-output
present-value 4 description Fan Lock/Unlock Setting status-flags (F,F,F,F) event-state normal
out-of-service F number-of-states 8
state-text {Unlock, Low, Reserved, Medium, Reserved, High, Reserved, Reserved}
priority-array {NULL, NULL, NULL, NULL...} relinquish-default 1
reliability no-fault-detected
Table 28 Present Value Fan Speed Value
unlock fan speed 1 low 2
medium 4 high 6
16
Remote Controller Lock Setting
Object-identifier : Binary-Output 4
Object-name : IDU_BO_RCLockSetting Present-Value: a readable and writable variable that
represent present remote controller lock setting of this indoor unit.
Wired Controller Lock Setting
Object-identifier : Binary-Output 5
Object-name : IDU_BO_ControllerLockSetting Present-Value: a readable and writable variable that
represent the present wired controller lock setting of this indoor unit.
Swing Lock Setting
Object-identifier : Binary-Output 6
Object-name : IDU_BO_SwingLockSetting Present-Value: a readable and writable variable that stands
for the present indoor ambient temperature of this indoor unit.
For the indoor units that do not support swing lock, the variable is invalid.
Input Variables Input variables are read-only, which the Interface read from indoor unit.
Object-identifier : Analog-Input 1
Object-name : IDU_AI_RoomTemp Present-Value: a read-only variable that stands for the
present room temperature of this indoor unit. (Units: Temperature unit, automatic identification)
Table 29 Remote Controller Lock Setting Name Value
object-identifier (B0, 4) object-name IDU_BO_RCLockSetting object-type binary-output description Remote Control Lock Setting status-flags (F,F,F,F) event-state normal
out-of-service F device-type
present-value inactive inactive text off active text on
polarity normal reliability no-fault-detected
priority-array {NULL, NULL, NULL, NULL...} relinquish-default inactive
Table 30 Present Value Status Value
unlock remote control 0 lock remote control 1
Table 31 Wired Controller Lock Setting Name Value
object-identifier (B0, 5) object-name IDU_BO_ControllerLockSetting object-type binary-output description Controller Control Lock Setting status-flags (F,F,F,F) event-state normal
out-of-service F device-type inactive text off active text on
polarity normal reliability no-fault-detected
priority-array {NULL, NULL, NULL, NULL...} relinquish-default inactive
Table 32 Present Value Status Value
unlock wired controller 0 lock wired controller 1
Table 33 Swing Lock Setting Name Value
object-identifier (B0, 6) object-name IDU_BO_SwingLockSetting object-type binary-output description Swing Lock/Unlock Setting status-flags (F,F,F,F) event-state normal
out-of-service F device-type
present-value inactive inactive text off active text on
polarity normal reliability no-fault-detected
priority-array {NULL, NULL, NULL, NULL...} relinquish-default inactive
Table 34 Present Value Status Value
unlock swing 0 lock swing 1
Table 35 Input Variables Name Value
object-identifier (AI, 1) object-name IDU_AI_RoomTemp object-type analog-output description Room Temperature status-flags (F,F,F,F) event-state normal
out-of-service F device-type
present-value 25 units degrees-Celsius
reliability no-fault-detected resolution 1
cov-increment 1
17
Set Temperature
Object-identifier : Analog-Input 2
Object-name : IDU_AI_SetTemp Present-Value: a read-only variable value that stands for the
present set temperature of this indoor unit. Range: Fahrenheit 54~86.
(Unit: Automatic identification)
Indoor Unit Operation Mode The Interface will automatically determine if the model type supports auto mode.
Object-identifier : Multistate-Input 1
Object-name : IDU_MI_ModeStatus Present-Value: a read-only variable value that stands for
the present operation mode of this indoor unit.
Indoor Unit On/Off State
Object-identifier : Binary-Input 1
Object-name : IDU_BI_OnOffStatus Present-Value: a read-only variable value that stands for
the present on/off state of this indoor unit.
Table 36 Set Temperature Name Value
object-identifier (AI, 2) object-name IDU_AI_SetTemp object-type analog-output description Setting Temperature Status status-flags (F,F,F,F) event-state normal
out-of-service F device-type
present-value 22 units degrees-Celsius
reliability no-fault-detected resolution 1
cov-increment 1
Table 37 Indoor Unit Mode Operation Property Name Property Value object-identifier (multistate-input, 1)
object-name IDU_MI_ModeStatus object-type multistate-input
present-value 1 description Mode Status status-flags (F,F,F,F) event-state normal
out-of-service F number-of-states 6
state-text {OFF, FAN, COOL, HEAT, AUTO, DRY} reliability no-fault-detected
Table 38 System does not Support Auto Mode Property Name Property Value object-identifier (multistate-input, 1)
object-name IDU_MI_ModeStatus object-type multistate-input
present-value 1 description Mode Status status-flags (F,F,F,F) event-state normal
out-of-service F number-of-states 6
state-text {OFF, FAN, COOL, HEAT, Reserved, DRY} reliability no-fault-detected
Table 39 Indoor Unit Functions Models that support
automatic mode Models that do not
support automatic mode Number
Power off Power off 1 Fan Fan 2
Cooling Cooling 3 Heating Heating 4
Auto N/A 5 Dry Dry 6 ERV New Indoor Units OFF OFF 1 ON FAN 2
Reserved Cooling 3 Reserved Heat 4 Reserved Reserved 5 Reserved Reserved 6
Table 40 Indoor Unit On/Off State Property Name Property Value object-identifier (BI, 1)
object-name IDU_BI_OnOffStatus object-type binary-input description On/Off Status status-flags (F,F,F,F) event-state normal
out-of-service F device-type
present-value active inactive-text off active-text on
polarity normal reliability no-fault-detected
Table 41 Present Value State Value
on 0 off 1
18
Indoor Unit Fan Speed State
(Only effective on models that have auto mode)
Object-identifier : Multistate-Input 2
Object-name : IDU_MI_FanSpeedStatus Present-Value: a read-only variable value that stands for
the present fan speed state of this indoor unit.
Auto Mode Dual Set Point Cooling Temperature Setting
(Only effective on models that have auto mode)
Object-identifier : Analog-Input 3
Object-name : IDU_AI_DualPointCoolingStatus Present-Value: a read-only variable value that stands for the present cooling temperature setting value of this indoor unit. Fahrenheit 62~86.
(Units: temperature unit, automatic identification)
Auto Mode Dual Set Point Heating Temperature Setting
(Only effective on models that have auto mode)
Object-identifier : Analog-Input 4
Object-name : IDU_AI_DualPointHeatingStatus Present-Value: a read-only variable value that stands for the
present heating temperature setting value of this indoor unit. Fahrenheit 54~86.
(Unit: temperature unit, automatic identification)
Cooling Mode Lower Temperature Lock Value
Object-identifier : Analog-Input 5
Object-name : IDU_AI_CoolTempLimitStatus Present-Value: a read-only variable value that stands for the
present lower temperature setting value limit under cooling mode of this indoor unit. Fahrenheit 62~86. 0 means no lock.
(Units: temperature unit, automatic identification)
Table 42 Indoor Unit Fan Speed State Property Name Property Value object-identifier (multistate-input, 2)
object-name IDU_MI_FanSpeedStatus object-type multistate-input
present-value 4 description Fan Speed Status status-flags (F,F,F,F) event-state normal
out-of-service F number-of-states 5
state-text {OFF, LOW, MEDIUM, HIGH, AUTO} reliability no-fault-detected
Table 43 Present Value Indoor Fan Speed Value
fan closed 1 low 2
medium 3 high 4 auto 5