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OM 752-4

I

ntroduCtIon

Table 4: Software program literature 

Description

Manual # 

Air Source Heat Pump with Electric Heat (Software Model 00)

OM 748 

Water Source Heat Pump with Electric Heat (Software Model 02) 

Water Source Heat Pump without Electric Heat (Software Model 03) 

OM 749 

DX Cooling with Electric Heat (Software Model 04)

OM 750 

DX Cooling Only (Software Model 05)

OM 751 

Electric Heat Only (Software Model 06)

OM 752 

DX Cooling with Hydronic Heat - Valve Control (Software Model 07) 

DX Cooling with Hydronic Heat - F&BP Damper Control (Software Model 08) 

OM 753 

2-Pipe Hydronic Heat Only -Valve Control (Software Model 09) 

2-Pipe Hydronic Heat Only - F&BP Damper Control (Software Model 10) 

OM 754 

2-Pipe Chilled Water Cooling and Hot Water Heat - Valve Control (Software Model 11) 

2-Pipe Chilled Water Cooling and Hot Water Heat - F&BP Damper Control (Software Model 12) 

OM 755 

4-Pipe Chilled Water Cooling and Hydronic Heat - Valve Control (Software Model 13) 

4-Pipe Chilled Water Cooling and Hydronic Heat - F&BP Damper Control (Software Model 14) 

OM 756 

2-Pipe Chilled Water Cooling Only - Valve Control (Software Model 15) 

2-Pipe Chilled Water Cooling Only - F&BP Damper Control (Software Model 16) 

OM 757 

2-Pipe Chilled Water Cooling with Electric Heat - Valve Control (Software Model 17) 

2-Pipe Chilled Water Cooling with Electric Heat - F&BP Damper Control (Software Model 18) 

OM 758 

 NOTICE

  This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used 

in accordance with this instruction manual, may cause interference to radio communications. It has 

been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the 

FCC rules. These limits are designed to provide reasonable protection against detrimental interference 

when the equipment is operated in a commercial environment. Operation of this equipment in a resi-

dential area is likely to cause detrimental interference in which case users are required to correct the 

interference at their own expense. Daikin disclaims any liability resulting from any interference or for the 

correction thereof. 

    WARNING

  Electric shock hazard. Can cause per onal injury or equipment damage. This equipment must be prop-

erly grounded. Connections and service to the MicroTech II control panel must be performed only b 

personnel that are knowledgeable in the operation of the equipment being controlled.

    CAUTION

  Extreme temperature can damage system components. The MicroTech II controller is designed to oper-

ate in ambient temperatures from -20°F to 125°F. It can be stored in ambient temperatures from -40°F 

to 140°F. It is designed to be stored and operated in relative humidity up to 95% (non-condensing). 

    CAUTION

  Static sensitive components. A static discharge while handling electronic circuit boards can damage 

components. Discharge any static electrical charge by touching the bare metal inside the main control 

panel before performing any service work. Never unplug any cables, circuit board terminal blocks, relay 

modules, or power plugs while power is applied to the panel. 

 

Содержание MicroTech II

Страница 1: ...el AVV Floor Mounted Model AHV Ceiling Mounted IMPORTANT Before unit commissioning please read this publication in its entirety Develop a thorough understanding before starting the commissioning proce...

Страница 2: ......

Страница 3: ...tional Integral PI Control Loops 29 Discharge Air Temperature Control 29 PI Control Parameters 30 Proportional Band 30 Integral Time 31 Indoor Air Fan Operation 31 Auto Mode 31 Occupied Standby and By...

Страница 4: ...network variables for each protocol refer to Protocol Data Packet bulletin ED 15065 Copies of the latest version of these manuals are available for download on our web site at www DaikinApplied com o...

Страница 5: ...quency energy and if not installed and used in accordance with this instruction manual may cause interference to radio communications It has been tested and found to comply with the limits for a Class...

Страница 6: ...Ventilation DCV DX Cooling Discharge Air Low Limit DXLL Defrost Start Set Point DSSP Defrost Reset Set Point DRSP Defrost Time Limit DTL Defrost Time Temperature Curve Value DTTC Economizer Compare Di...

Страница 7: ...d Heating Setpoint OHS Occupancy Override Input OOI Occupancy Sensor Input OSI Proportional Integral PI Parts Per Million PPM Positive Temperature Coefficient PTC Relative Humidity RH Space Humidity S...

Страница 8: ...ay Format The keypad display s 2 digit 7 segment display normally shows the effective heating or cooling temperature set point Effective Set Point Output The display also is used to view and modify UV...

Страница 9: ...e heating set point appears in the display All other LEDs are switched off The UVC archives each change to the keypad display FAN and MODE keys When the ON STOP key is used to bring the unit out of OF...

Страница 10: ...ery first time this cleared value shows as the highest allowed value 5 F 3 C but is not an actual offset value When using the 3 F 1 7 C remote wall sensor any set point offset adjustment made at the k...

Страница 11: ...ncy Override Input Set occupancy 0 occupied 1 unoccupied 2 bypass 3 standby Adjusting this variable is intended only for troubleshooting Once you are done cycle unit power to clear this variable and r...

Страница 12: ...e6 Economizer IA OA Enthalpy Differential EED Adjust economizer IA OA enthalpy differential RW x 1 3 Btu lb 3 kJ kg 1 Space Humidity Output ERH Display room humidity optional 00 No sensor connected RO...

Страница 13: ...roup two or more related states into a single control function There are three super states Heating Cooling and Emergency Heat The states which are indicated by a specific state number are where all t...

Страница 14: ...HEAT Mode State 4 LOW LIMIT Mode State 15 Manual Forced Transition One way Automatic Transition Two way Automatic Transition UVC Unit Modes The UVC provides several normal modes of unit operation Thes...

Страница 15: ...gle UVC state OFF 9 When OFF mode becomes active the UVC stops all normal heating cooling and ven tilation OA damper is closed and fan operation ends The UVC continues to monitor space conditions indi...

Страница 16: ...page 36 is set to ON If the UVC is not set to another mode within 1 hour fixed the UVC automatically switches to the Fan Only mode see Fan Only Mode State 10 below While in Purge mode the UVC does not...

Страница 17: ...Yes Yes No No Full Heat State State 7 The Full Heat 7 state is the normal state that the UVC goes into when Emergency Heat mode is active It is activated when the space temperature is lower than the E...

Страница 18: ...he Heat mode super state becomes active the UVC automatically determines which of the Heat Mode states to make active based upon the transitions for each state Figure 11 Heat mode super state diagram...

Страница 19: ...override the OA damper position see Outdoor Air Damper Operation on page 32 and adjust the OA damper toward closed as necessary to maintain the current DATS see Discharge Air Temperature Control on p...

Страница 20: ...ing economizer is available and adequate to meet the cooling requirements When the Econ state becomes active the UVC will within State continually calculate the DATS Discharge Air Temperature Control...

Страница 21: ...tilation optional on page 33 and the OA damper is adjusted as needed to maintain the CO2 set point Low Limit State State 15 The Low Limit state is a non normal state during Cool mode The Low Limit sta...

Страница 22: ...h ServiceTools for MicroTech II Applied Terminal Unit Controllers ATS Purge Mode When in Purge mode the UVC uses the IAF OAD and exhaust output as needed to purge the space The UVC stops all normal he...

Страница 23: ...the normal UVC mode priority Table 11 Energy hold off Energy hold off Off Off Energized5 Ignored Energy hold off Off Off Pressurize Ignored Ignored Ignored Off Pressurize De pressurize Ignored Ignore...

Страница 24: ...s closed Unoccupied Bypass Standby Ignored Ignored Standby Null default 3 Occupied Ignored Occupied Unoccupied Ignored Unoccupied4 Null default Contacts open Occupied Occupied Contacts closed Unoccupi...

Страница 25: ...to unoccupied mode then the unit mounted tenant override switch does not operate as expected Therefore Daikin strongly recommends using the Occupancy Sensor Input to control occupancy modes over a net...

Страница 26: ...ed Set Point Shift Capability The Set Point Shift Input variable is used to shift the effective heat cool set points It typically is bound to a networked supervisory controller or system that provides...

Страница 27: ...ctive Set Point Output network variable is set equal to the calculated set point The Effective Set Point Output is the temperature set point that the UVC maintains which normally appears on the keypad...

Страница 28: ...Space Temp Setpoint 71 0 F from remote sensor Setpoint Offset 1 0 F from LUI Setpoint Shift not used 0 0 F OCS 75 0 F OHS 70 0 F Effective set point calculations Absolute Offset Setpoint OCS OHS 2 71...

Страница 29: ...mperature Setpoint Output Discharge Air Temperature Operate Electric Heat PI 6 CO2 optional Single Effective CO2 Setpoint Space CO2 Position the OA Damper PI 7 Low Limit Single Calculated Discharge Ai...

Страница 30: ...tanding of how these parameters affect system operation Generally these parameters do not need to be adjusted from the factory default settings Figure 19 Optimized PI loop control Proportional Band Th...

Страница 31: ...ation based on the unit mode the occupan cy mode and the values of several network variables Auto Mode The UVC is provided with a user selectable auto fan mode feature When in auto fan mode the UVC us...

Страница 32: ...onomizer function is used by the UVC to determine if the OA is adequate for economizer primary cooling When both the economizer and mechanical cooling are available the economizer is used as primary c...

Страница 33: ...le Reliable Ignored Unreliable Test B Reliable Reliable Ignored Reliable Test C Expanded Reliable Reliable Ignored Reliable Test C and Either Test B or Test A Leading Edge Reliable Reliable Reliable R...

Страница 34: ...ce odor buildup due to the out gassing of new construction material and then return the minimum OA damper position at a later date If the CO2 Demand Controlled Ventilation DCV option is used the UVC o...

Страница 35: ...de the functions described below Figure 22 Binary inputs Binary Inputs 3 sets of dry contacts to signal UVC Input 1 Unoccupied default Input 2 Remote shutdown Input 3 Ventilation lockout default or Ex...

Страница 36: ...e Output 1 Relay output for light signal Output 2 Fault signal Output 3 Exhaust fan operation These outputs are relay type outputs that are intended to be used with signal level volt ages 24 VAC maxim...

Страница 37: ...igh BO 2 Inside Fan Medium BO 3 Electric Heat 1 BO 4 Electric Heat 2 BO 5 Electric Heat 3 BO 6 External Output Option 2 Fault Indication1 BO 7 BO 8 BO 9 BI 1 BI 2 BI 3 BI 4 External Input Option 3 Ven...

Страница 38: ...hat a fault condition exists The fault signal binary output energizes The fault performs the appropriate control actions as described for each fault Manual reset faults can be reset in one of three wa...

Страница 39: ...is forced closed Electric heat stages are de energized Fault is indicated Space Humidity Sensor Failure optional fa The Space Humidity Sensor Failure fault occurs when the UVC detects open or short c...

Страница 40: ...a suspect sensor 1 Disconnect both sensor leads from the UVC 2 Using some other calibrated temperature sensing device take a temperature reading at the sensor location 3 Use the temperature reading fr...

Страница 41: ...e expected voltage replace the sensor Table 23 Humidity versus voltage RH VDC mV RH VDC mV 10 1330 55 2480 15 1475 60 2600 20 1610 65 2730 25 1740 70 2860 30 1870 75 2980 35 1995 80 3115 40 2120 85 32...

Страница 42: ...wn 1 emergency heat available during shutdown 0 h3 Wall Sensor Type 0 3 F 1 55 F to 85 F 0 r5 Slave Type Configuration 0 independent slave 1 dependent slave 0 sl OAD Min Position High Speed Setpoint O...

Страница 43: ...uring ventilation or economizer cooling 54 F 12 C d2 Discharge Air High Limit DAHL 125 F 51 7 C Space Fan Off Delay 4 min Fan Cycling Configuration space fan operation during occupied standby and bypa...

Страница 44: ...dard terms and conditions of sale including Limited Product Warranty Consult your local Daikin Applied representative for warranty details Refer to Form 933 430285Y To find your local Daikin Applied r...

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