![Daikin Microtech III [23/100] Actuators](/img/pdf.png)
Daikin Microtech III [23/100] Actuators
![Daikin Microtech III [23/100] Actuators](/views2/1656107/page23/bg17.png)
Actuators
The actuators are controlled by an analog signal from the
unit controller. Damper actuators utilize a 0-10VDC analog
signal while modulating heating/cooling valve actuators utilize
a 2-10VDC signal. Spring-return actuators are used for the
0 - 30% outdoor air and economizer dampers. The mixing
dampers are normally closed to the outside air.
Figure 13: Actuator Wiring Diagram
Variable Frequency Drives (VFD’s)
When controlling speed commands of supply, return or exhaust
fans, energy recovery wheels or condenser fan variable
frequency drives, the MicroTech III controller uses an internal
ModBus communications channel for control and monitoring
of the Variable Frequency Drives . When confronted with
ModBuss issues remember polarity is primary. Check the
MTIII menu under “Service Menus/ModBus status” all the fans
should read “OK”
Figure 14: VFD Wiring Diagram
Smoke Detectors
Field installed as well as factory installed smoke detectors
in the supply and return duct work should be wired into the
circuit that feeds 24VAC to Digital input 4. While the circuit is
complete and power is routed to DI4 gives the controller an “all
clear” signal and normal operation is available. If the circuit
is opened by one of the smoke detectors dry set of contacts
and the 24 VAC is dropped from DI4 the controller initiates
an “emergency shut down” The shutdown must be manually
cleared once the contacts have closed again. To change to
automatic re-start see the Alarm Conguration menu, and
change the default from “Man Clr” to “Auto re-start” For
connection points please refer to the electrical drawings that
came with the unit.
NOTE: Figure 15 is a typical wiring scheme for smoke
detector wiring; exact terminal numbers should be
veried with the electrical diagram that was supplied
with the unit.
Figure 15: Smoke Detector Wiring Diagram
Description of Operation
www.DaikinApplied.com 23 IM 919-4 • MICROTECH III CONTROLLER
Содержание
- Table of contents 2
- Caution 3
- Component data 3
- General description 3
- Introduction 3
- Notice 3
- Warning 3
- Introduction 4
- Main control board mcb 4
- Keypad display 5
- Keypad display 6
- Microtech iii warranty statement 6
- About this ahu 7
- Ahu 01 1 5 7
- Edit mode 7
- Keypad display 7
- Navigation mode 7
- Passwords 7
- Remote keypad display option 7
- Controller application software upgrade procedures 8
- Preparing the sd card 8
- Controller application software upgrade procedures 9
- Downloading software to the controller 9
- Saving parameters to an sd card 9
- Controller application software upgrade procedures 10
- Manually programming the unit configuration 10
- Restoring parameters to the controller 10
- Are confirmed set the apply changes parameter to yes and press the enter button 11
- Controller application software upgrade procedures 11
- For an error as mentioned under the restore parameters to the controller section step 4 11
- If the controller did not reset then verify the app version 11
- Once all the values under the unit configuration menu 11
- Proceed with setting up individual setting to commission 11
- Table 3 unit configuration 11
- The controller will perform an automatic reset 11
- The unit as required for the application 11
- This completes the manual programming process 11
- Www daikinapplied com 11 im 919 4 microtech iii controller 11
- Controller application software upgrade procedures 12
- Im 919 4 microtech iii controller 12 www daikinapplied com 12
- Controller application software upgrade procedures 13
- Www daikinapplied com 13 im 919 4 microtech iii controller 13
- Controller application software upgrade procedures 14
- Im 919 4 microtech iii controller 14 www daikinapplied com 14
- Description of operation 15
- Table 4 nominal input resistance versus temperature 15
- Temperature sensors 15
- The microtech iii controller uses passive negative temperature coefficient ntc 10k ohm sensors these sensors vary their input resistance to the mcb as the temperature changes table 3 details the resistance versus temperature values for typical sensor wiring examples refer to figures 12 13 and 14 15
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- Description of operation 16
- Pressure sensors 16
- Troubleshooting pressure transducers 16
- Dc volts 17
- Description of operation 17
- Duct pressure sensor 17
- Figure 8 duct pressure sensor output 17
- Figure 9 duct pressure sensor 17
- Inches w c 17
- Input voltage 24 vdc 17
- Note the transducer output signal is 4 20ma however the 17
- Output 4 20 ma 17
- Signal entering the vfd is converted to a dc voltage signal via a 500 ohm resistor on the daikin md drives 17
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- Building pressure sensor 18
- Dc volts 18
- Description of operation 18
- Figure 10 building pressure sensor output 18
- Figure 11 building pressure sensor 18
- Im 919 4 microtech iii controller 18 www daikinapplied com 18
- Inches w c 18
- Input voltage 24 vdc 18
- Note the transducer output signal is 4 20ma however the 18
- Output 4 20 ma 18
- Signal entering the vfd is converted to a dc voltage signal via a 500 ohm resistor on the daikin md drives 18
- Description of operation 19
- Mamac panel mounted pressure transducer 19
- Specifications 19
- Warning 19
- Description of operation 20
- For additional information see pr 274 275 data sheet 20
- Installation 20
- Low pressure transducer 20
- Ordering information 20
- Specifications 20
- Caution this product contains a half wave rectifier power supply and must not be powered off transformers used to power other devices utilizing non isolated full wave rectifier power supplies 21
- Controller meter recorder 21
- Controller meter recorder ma output transducer only 21
- Description of operation 21
- Figure 12 continued mamac panel mounted pressure transducer dimensions 21
- Figures illustrate typical wiring diagrams for the ma output low pressure transducer 21
- Figures illustrate typical wiring diagrams for the vdc output low pressure transducer 21
- Low pressure transducer 21
- Ma output transducer only 12 40 vdc power supply 21
- Typical applications wiring diagrams 21
- Vdc output transducer only 12 35 vac transformer 21
- Vdc output transducer only 12 40 vdc power supply 21
- Wiring for ma low pressure transducers with an external dc power supply 21
- Wiring for ma output transducers where the controller or meter has an internal dc power supply 21
- Wiring for vdc low pressure transducers when applied with external ac supply 21
- Wiring for vdc low pressure transducers when applied with external dc supply 21
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- 0 25 wc 31 5 pa 22
- 0 5 wc 62 pa 22
- 0 wc 125 pa 22
- 1 5 wc 312 pa 22
- 10 default 22
- 15 wc 3750 pa 22
- 2 wc 625 pa 22
- 25 wc 156 5 pa 22
- 3 5 wc 937 pa 22
- 7 wc 1875 pa 22
- Bi directional 22
- Description of operation 22
- Low pressure transducer 22
- Ma output 22
- Output configuration switch 2 s2 22
- Output configuration switch 2 s2 output configuration switch 3 s3 22
- R1 r5 0 0 0 wc 25 pa 22
- R1 r5 0 5 wc 12 pa 22
- R2 r6 0 1 wc 250 pa default 22
- R2 r6 0 wc 125 pa default 22
- R3 r7 0 5 wc 1250 pa default 22
- R3 r7 2 wc 625 pa default 22
- R4 r8 0 30 wc 7500 pa default 22
- R4 r8 15 wc 3750 pa default 22
- Range configuration switch 1 s1 bi directional 22
- Range configuration switch 1 s1 uni directional 22
- Range configuration switch 1 s1 uni directional range configuration switch 1 s1 bi directional 22
- S3 s3 s3 s3 s3 s3 3 22
- Switch selections for low pressure transducers with ma outputs 22
- Switch selections for low pressure transducers with vdc outputs 22
- Uni directional default 22
- Vdc output 22
- Actuators 23
- Description of operation 23
- Smoke detectors 23
- Variable frequency drives vfd s 23
- Addressing ecm motors 24
- Addressing ecm motors procedure 24
- Description of operation 24
- Ecm electronically commutated motor fan motor 24
- Description of operation 25
- Restoring ecm adressing to default 25
- Controller inputs outputs 26
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- Table 5 rtu mps dps dph main control board i o 26
- Controller inputs outputs 27
- Table 5 continued rtu mps dps dph main control board i o 27
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- Controller inputs outputs 28
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- Table 6 scu main control board i o 28
- Controller inputs outputs 29
- Table 7 rtu expansion module a i o 29
- Table 8 scu expansion module a i o 29
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- Controller inputs outputs 30
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- Table 9 rtu mps dps dph expansion module b i o 30
- Controller inputs outputs 31
- Table 10 scu expansion module b i o 31
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- Controller inputs outputs 32
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- Table 11 rtu expansion module c i o 32
- Controller inputs outputs 33
- Table 12 scu expansion module c i o 33
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- Controller inputs outputs 34
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- Table 13 dps dph expansion module d i o 34
- Controller inputs outputs 35
- Table 14 rtu scu mps dps dph expansion module e i o 35
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- Cooling only units 36
- Fan operation 36
- Field output signals 36
- Field wiring 36
- Remote alarm output 36
- Units with modulating heat 36
- Vav box signal fan operation signal 36
- Vav output 36
- Field analog input signals 37
- Field wiring 37
- Outdoor damper 37
- Pump signal 37
- Staged cooling outputs 37
- Zone temperature sensor packages 37
- 50 55 60 65 70 75 80 85 38
- Field wiring 38
- Figure 16 microtech iii wallstat resistance vs setpoint 38
- Im 919 4 microtech iii controller 38 www daikinapplied com 38
- Resistance ohms 38
- Setpoint f 38
- Field wiring 39
- Tenant override timed 39
- Zone sensor w o remote set point adjustment 39
- Zone sensor with remote set point adjustment 39
- Field wiring 40
- Figure 19 rebel dps 3 to 15 ton microtech iii wiring 40
- Figure 20 rebel dps 16 to 28 ton microtech iii wiring 40
- Figure 21 maverick mps microtech iii wiring 40
- Figure 22 roofpak rps microtech iii wiring 40
- Im 919 4 microtech iii controller 40 www daikinapplied com 40
- The optional microtech iii room temperature humidity sensor package equipped with a set point adjustment potentiometer can be used with any applied rooftop microtech iii control configuration this sensor package also includes a tenant override button this zone sensor package must be field installed and field wired to the unit using twisted shielded cable 40
- Zone sensor with temperature humidity and remote set point adjustm ent 40
- External discharge air reset signal 41
- External outdoor air damper reset signal 41
- External time clock or tenant override 41
- Field digital input signals 41
- Field wiring 41
- Humidity sensors 41
- Co2 sensor wiring 42
- Emergency shutdown 42
- Field wiring 42
- Oa damper flow station with c 42
- Oa damper flow station with co2 reset setup 42
- Reset setup 42
- Sensor wiring 42
- Ebtron or field oa flow station wiring 43
- Field wiring 43
- Mps 17 50 tons dps expansion module b 43
- On maverick mps and rebel dps units the oa flow station needs to be wired to terminals x3 and m on expansion module b on rooftop rtu and self contained scu units the oa flow station needs to be wired to terminals x1 and m on expansion module e terminal m is common for all analog inputs make sure the polarity is correct on the field wiring to read a valid cfm value see table 14 on page 35 43
- Rtu scu mps 62 70 tons expansion module e 43
- See table 9 on page 30 43
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- Compressor staging 44
- Cooling multistage 44
- Guaranteed on and off times must be observed as well as a minimum of 10 seconds between starting more than one compressor 44
- If a circuit is disabled and then becomes re enabled no change occurs until a new stage up or down request occurs at this time the staging is re aligned to the normal condition for the new stage 44
- If both circuits are enabled the staging sequence is std 1 if compressor 1 has fewer hours than compressor 3 and the staging sequence is std 2 if compressor 1 does not have fewer hours than compressor 3 if circuit 1 is disabled compressor 2 is staged on and off to maintain the temperature setpoint if circuit 2 is disabled the staging sequence is set to std 1 if comp 1 has fewer hours than comp 3 and the staging sequence is set to std 2 if comp 1 does not have fewer hours than comp 3 if a circuit is disabled and then becomes re enabled no change occurs until a new stage up or down request occurs at this time the staging is re aligned to the normal condition for the new stage when both circuits are enabled the staging sequence is changed only when the number of stages is zero or maximum cooling stages 44
- Im 919 4 microtech iii controller 44 www daikinapplied com 44
- Note during this re alignment the cooling stage time 44
- Rps scu two small comps on circuit 1 one large comp on circuit 2 four stages rtu w 3 4 2 r22 or r407c or scu 44
- Rtu scu two unequal sized compressors two circuits three stages 2 2 3 44
- Table 15 rtu scu compressor circuit configurations 44
- Table 16 rtu standard staging 44
- Table 17 rps scu standard staging 44
- The following table is provided for reference indicating the compressors that are included in each circuit for all the rtu and scu compressor configurations rtu scu compressor circuit configurations 44
- With this configuration there are two fixed sequences used when both circuits are enabled 44
- With this configuration there is only one fixed sequence if both circuits are enabled the maximum cooling stages is set to 3 if circuit 2 is disabled the maximum cooling stages is set to 1 and compressor 1 is staged on and off to maintain the temperature setpoint if circuit 1 is disabled the maximum cooling stages is set to 2 and compressor 2 is staged on and off to maintain the temperature setpoint 44
- Cooling multistage 45
- Rps two small comps on circuit 2 one large comp on circuit 1 four stages 3 4 2 410a rtu 45
- Scu one small comp on circuit 1 one large comp on circuit 2 on large or small comp or circuit 3 four stages 3 3 4 410a scu 45
- Cooling multistage 46
- Rps scu equal number and size compressors on circuits 2 2 2 3 3 3 4 4 4 4 2 4 6 2 6 6 6 6 6 3 6 8 8 8 8 4 8 46
- Cooling multistage 47
- Table 21 circuit staging method 47
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- Cooling multistage 48
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- Table 21 continued circuit staging method 48
- Cooling multistage 49
- Fixed staging sequences are provided for mps units the compressor state will normally be as indicated in the standard sequences table below for each compressor stage the staging will be as indicated in the alternate sequences table below when the unit is configured for modulating hot gas reheat control and dehumidification operation is active when any circuit is disabled the compressors on that circuit are turned off immediately staging continues normally when a circuit is disabled 49
- Is disabled since this is the circuit equipped with the hot gas reheat 49
- Mps015 through mps050 2 3 or 4 compressors 2 circuits 49
- Note dehumidification operation is disabled when circuit 1 49
- Table 22 mps standard staging 49
- When the unit has staged up to the maximum stage with one circuit disabled and that circuit is enabled a 10 second delay between compressor starts is used and a cooling stage time must have elapsed since an individual compressor was stopped before it is restarted 49
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- Cooling multistage 50
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- Table 22 continued mps standard staging 50
- Cooling multistage 51
- Table 23 alternate sequences dehumidification 51
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- Cooling multistage 52
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- Table 23 continued alternate sequences dehumidification 52
- Communication module 53
- Network communications 53
- After the main control board application software is loaded into the mcb it must be configured for the specific control application this consists of setting the value of 28 configuration variables within the mcb these variables define things such as the type of cooling number of compressors and cooling stages and the type of heat if all of these items are not set appropriately for the specific unit the unit will not function properly the correct settings for these parameters are defined for a given unit by the unit software configuration code 54
- Im 919 4 microtech iii controller 54 www daikinapplied com 54
- Table 24 unit configuration menu 54
- The software configuration code consists of a 28 character string of numbers and letters the code can be found on the unit software identification label located on the back side of the control panel door the code should match the code found in the controller under the main menu about this ahu cf1 15 first fifteen numbers or letters cf2 16 30 second set of fifteen numbers or letters table 24 lists the configuration code variables including the position within the code description of the parameter and the applicable settings for each the default values are shown in bold font the unit is configured at the factory however it may also be configured in the field by accessing the unit configuration menu once changes have been made to the unit configuration menu the apply changes flag must be changed from no to yes in order for the controller to recognize the changes setting the apply changes flag to yes will automatically reset the controller 54
- Unit configuration setup menu 54
- Table 24 continued unit configuration menu 55
- Unit configuration setup menu 55
- Www daikinapplied com 55 im 919 4 microtech iii controller 55
- Im 919 4 microtech iii controller 56 www daikinapplied com 56
- Table 24 continued unit configuration menu 56
- Unit configuration setup menu 56
- Typical electrical drawings roofpak 57
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- Typical electrical drawings maverick 73
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- Typical electrical drawings maverick 75
- Typical electrical drawings maverick 76
- Figure 33 rebel electrical diagram 77
- Typical electrical drawings rebel 77
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- R cch1 81
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- Figure 33 continued rebel electrical diagram 86
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- Typical electrical drawings rebel 86
- Back of wall 87
- Expb expd 87
- Figure 33 continued rebel electrical diagram 87
- Labels shipped loose with panel 87
- N t3 t2 t1 l3 l2 l1 87
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- Figure 34 continued rebel new style electrical diagram 92
- Im 919 4 microtech iii controller 92 www daikinapplied com 92
- Typical electrical drawings rebel 92
- Typical electrical drawings self contained 93
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- Parts list 99
- Table 25 parts list 99
- Www daikinapplied com 99 im 919 4 microtech iii controller 99
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