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6.  Programming Notes

 

 

12 

Quick User Guide 

DCM014A51

 

EXAMPLE 2 - Cool SP 

Step 

BMS 

BACnet® Server in ITM 

Management Point in ITM 

Pre-condition   

 

Cool SP range: 70-78°F 

 

Cool SP: 72°F 

 

Cool SP range: 70-78°F 

 

Cool SP: 72°F 

#1 

 

Sets Cool SP 68°F 

 

PV: 68°F

, previous PV: 72°F 

 

Start 10-min timer 

 

#2 

 

 

Sends 68°F to Management Point 

 

Cool SP 68°F is rounded to 70°F due to Cool 

SP range 70-78°F  

 

Cool SP: 

70°F (Changed)

 

#3 

 

 

PV 70°F 

 

Reset 10-min timer 

 

Sends 70°F to BACnet® Server 

#1 

 

Sets Cool SP 68°F 

again 

 

PV: 68°F

, previous PV: 70°F 

 

Start 10-min timer 

 

#2 

 

 

Sends 68°F to Management Point 

 

Cool SP 68°F is rounded to 70°F due to the 

Cool SP range 70-78°F 

 

Cool SP: 70°F (No change) 

#3 

 

 

When 10-min timer expires, PV back to 

70°F 

 

EXAMPLE 3 – Operation mode to Changeover slave unit 

Step 

BMS 

BACnet® Server in ITM 

Management Point in ITM 

Indoor Unit 

Pre-condition 

 

 

Operation mode: Cool 

 

Operation mode: Cool 

 

Operation mode: Cool 

#1 

 

Sets 

Operation 

mode Fan 

 

PV: Fan,  

previous PV: Cool 

 

Start 10-min timer 

 

 

#2 

 

 

Sends Fan mode to 

Management Point 

 

Send Fan mode to Indoor Unit 

 

Accepts Fan mode 

 

Status update to ITM as 

Operation mode Fan 

#3 

 

 

PV Fan 

 

Reset 10-min timer 

 

Operation mode: 

Fan 

(Changed) 

 

Send Fan to BACnet® Server 

 

#1 

 

Sets 

Operation 

mode Heat 

 

PV: Heat, 

 

previous PV: Fan 

 

Start

 10-min timer 

 

 

#2 

 

 

Sends Heat to Management 

Point 

 

Send Heat to Indoor Unit 

 

Cannot accept Heat due 

to changeover slave unit 

 

 

 

Operation mode: Fan (No 

change) 

 

Periodical status report 

to ITM as Operation 

mode Fan 

#3 

 

 

When 10-min timer expires, 

PV back to Fan 

 

 

Содержание intelligent Touch Manager BACnet DCM014A51

Страница 1: ...Intelligent Touch Manager BACnet Server Gateway DCM014A51 QUICK USER GUIDE UGUS_DCM014A51_03 17...

Страница 2: ...Points List 6 5 1 iTM System Points List 6 5 2 Indoor Unit Points List 6 6 Programming Notes 9 6 1 iTM Control Logic and The Related BACnet Points 9 6 2 Setpoints 9 6 3 Auto changeover 9 6 4 Setpoints...

Страница 3: ...l of the VRV system except for individual indoor unit and controls configurations 2 Types of Daikin VRV Systems The VRV system can consist of Heat Recovery systems Heat Pump systems or a system that i...

Страница 4: ...5 2 00 to 2 15 3 00 to 3 15 and 4 00 to 4 15 A remote control group consists of 1 to 16 indoor units daisy chained together via P1P2 connections The unit is used to identify the indoor unit within a g...

Страница 5: ...ored through the iTM BACnet Server Gateway 3 Up to 7 additional DIII Net communication systems can be added with the optional iTM Plus Adaptors 4 The iTM BACnet Server Gateway support change of value...

Страница 6: ...wing are indoor unit control and monitoring points Each indoor unit group shall have one set of these points Refer to iTM BACnet Server Design Guide Part 2 for point description Instance No Object_Nam...

Страница 7: ...us BI Off On 26 Communication Status BI Normal Alarm 27 Thermo on Status BI Off On 28 Compressor Status MI Off On Defrost Hot Start 29 Aux Heater Status BI Off On 30 Forced Thermo off BV Disable Enabl...

Страница 8: ...bled therefore a value set on the indoor unit management point remains unchanged even if Present_Value is changed 4 The Out_Of_Service property of Max Cooling Setpoint and Min Cooling Setpoint indicat...

Страница 9: ...he BMS are also updated in the iTM and setpoints set at the iTM are updated to the BMS The Unoccupied setpoint can be set via the schedule iTM or BMS or manually from the iTM or BMS The setback should...

Страница 10: ...oor unit When the timed override function is enabled for an indoor unit group the units will be turned off automatically after the preset timer has expired if the unit is turned on during the unoccupi...

Страница 11: ...ver The iTM BACnet Server updates the PV and reset the 10 min timer 4 If the value in Management Point is not changed which means the indoor unit did not accept the new value and failed to update the...

Страница 12: ...No change 3 When 10 min timer expires PV back to 70 F EXAMPLE 3 Operation mode to Changeover slave unit Step BMS BACnet Server in ITM Management Point in ITM Indoor Unit Pre condition Operation mode...

Страница 13: ...management points in the iTM are monitored and controlled by the BMS without additional hardware devices The iTM Auto Changeover Setpoint Range Limit Setback Dual Setpoint logic and Schedule control...

Страница 14: ...ions and with the instructions in this installation manual Improper installation may cause electric shock or fire Only use specified accessories and parts for installation Failure to use specified par...

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