Daikin ARQ Installation And Maintenance Manual Download Page 30

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IM 1083-3

30 www.DaikinApplied.com

MicroTech

Unit Electrical

Connections

DANGER

To avoid electrical shock, personal injury or death, be

sure that field wiring complies with local and national fire,

safety, and electrical codes, and voltage to the system is

within the limits shown in the job-specific drawings and

unit electrical data plate(s).

WARNING

Power supply to unit must be disconnected before making field

connections. To avoid electrical shock, personal injury or death,

be sure to rigorously adhere to field wiring procedures regarding

proper lockout and tagout of components.

See "Electrical Data" on page

page 29

, and

Figure

43 page 26 and Figure 44

or the job-specific electrical

drawings before proceeding with field power and control wiring.

See also the wiring diagram provided on the unit ventilator

inside-right front access panel.

Unit ventilators equipped with an optional electric heating coil

have electric heating coil power connections at right end only.

Procedure

1. Provide power supply to right end compartment to match

unit nameplate.

CAUTION

Use copper conductors only. Use of aluminum conductors may

result in equipment failure and overheating hazards. All wiring in

right hand compartment must be class 1.

Figure 45: Electrical power On/Off switch located behind

front-middle access panel in wire trough, with power entry

accessed behind right-front access panel

Grommeted Power Wire Entry

Unit Main Power

On/Off Switch

2. Confirm that power is de-energized and locked and

tagged-out.

3. Plug in the unit control wiring male plug(s) into the

appropriate female plug(s).

•

Plug in 4-pin (for MicroTech and Electromechanical, see

Figure 48 on page 31).

•

0-pin (MicroTech only, see Figure 49 on page 31).

•

12-pin (MicroTech only, see Figure 50 on page 31).

4. Insert the main power wires into the main power On/Off

switch terminal lugs (A, B and C). Note that terminal lug

B, not used on single phase. Connect the Ground wire to

the ground lug as shown in Figure 47. Tighten the terminal

lugs securely.

5. Reinstall the cover plate on the main power wire trough.

Note: For Electromechanical wiring (see Figure 58 on page

36).Control connections for elecromechanical are

made to the terminal block in the left end compartment.

Figure 46: Control wiring plug connections in right end

compartment.

Control wiring whips with

caps located in the right

front end compartment

Figure 47: Electrical power On/Off switch for power wiring

connections

Note:

not used on single phase.

Terminal lugs for main power wiring from unit,

field connection by others

Main Power On/Off Switch

Ground Lug

Summary of Contents for ARQ

Page 1: ...ation and Maintenance Manual IM 1083 3 Group Unit Ventilator Document PN 910247364 Date October 2018 Daikin Classroom Unit Ventilators Model ARQ Standard Range Model GRQ Geothermal Range MicroTech J Vintage C ...

Page 2: ......

Page 3: ...tional Information For Initial Start up 18 Piping Considerations 19 Water System Cleaning 20 Make Piping Connections 21 Water Coil Connections 21 System Balancing 22 Making Control Connections 23 MicroTech Wiring Diagram Typical 26 Electrical Data 28 ARQ GRQ Size 024 28 ARQ GRQ Size 040 29 ARQ GRQ Size 048 29 MicroTech Unit Electrical Connections 30 MicroTech Wall Mounted Sensors 32 Field Wiring R...

Page 4: ...rol Features Feature Selections Open Protocol BACnet Stand Alone LonMark DCV CO2 Sensor Factory Installed Keypad LUI Control Code Economizer Control Basic B1 B5 B9 BD BH BL BP BT Expanded E1 E5 E9 ED EH EL EP ET Leading Edge L1 L5 L9 LD LH LL LP LT 44 Electromechanical w 2 Position OA Damper for Remote Thermostat Discharge 10 16 17 AL 16 5 8 Top Bar Grille AP 21 7 8 Top Bar Grille Full Adapter Bac...

Page 5: ...ged in transit due to rough handling even though the carton may not show external damages When the damage is discovered upon unpacking make a written request for inspection by the carrier s agent within fifteen 15 days of the delivery date File a claim with the carrier since such damage is the carrier s responsibility Storage If equipment is stored for any length of time before installation it sho...

Page 6: ...GER Disconnect all electrical power before servicing unit Electrical shock will cause severe injury or death WARNING Hazardous Voltage Use copper conductors only Unit terminals are not designed to accept other types of conductors Failure to do so may cause damage to the equipment CAUTION Personal injury hazard Wear protective gloves to avoid possi ble cuts and abrasions from exposed edges Avoid co...

Page 7: ...ormation of standard components as listed in the Nomenclature on page 4 Unit comes with an allen wrench and four 4 lagging washers in the envelope placed in the end compartment of the unit Figure 4 Install this product in accordance with good engineering practices and workmanship following these general instructions plus the job specific Daikin submittal drawings provided for specific dimensions u...

Page 8: ...Mortar Bed Caulk Weep Holes Floor Unit Insulating Blanket Back Of Unit Unit Bottom Gasket Seal Under Unit Bird Screen Internal Column For Wall Bracing By Others Unit Gasket 1 End Panel w Cut Out Lintel by others Unit Outside Air Opening Typical VentiMatic Shutter Installation Figure 6 Typical VentiMatic Shutter assembly installation see installation section for typical warnings and cautions Louver...

Page 9: ...tal and vertical blade louvers without flanges with grille or with flange without grille Louver drain lip Grille Louver with weep hole Flange Flange Outside Air Vertical Louver with Flange without Grille Horizontal Louver without Flange with Grille Rear of Horizontal Blade Louver with Birdscreens and Flange VentiMatic Shutter Assembly In many installations a Daikin Applied VentiMatic Shutter Assem...

Page 10: ...itch Away From Unit Lintel By Others 1 25mm CAUTION Accumulated moisture can cause property damage if not properly drained Installing contractor must provide such drainage Figure 12 Above floor level outdoor air intake with accessory closed refrigerant pipe chase Unit Refrigerant Piping Floor Line Lintel By Others Intake Louver Not Less Than 3 Not More Than 28 Insulated Closure Plate Accessory Pro...

Page 11: ... By Others Unit Refrigerant Piping Field Supplied Water Piping Floor Line Figure 16 21 556mm partial adapter back unit with window below unit top 2 step down and floor level outdoor intake louver location Lintel By Others Intake Louver Important Gasket sealing surface is required Field Provided Water Piping Insulated Texture Painted Top Floor Line Sealed Cement Mortar Pitch Away From Unit 1 25mm 2...

Page 12: ...ooth square and provides a suitable mating surface Before setting the louver construct a sloping sealed cement mortar base to drain unwanted moisture to the outside see Figure 19 Be sure the mortar base is 1 25mm thick at the unit and tapers toward the louver The mortar at the unit also acts as a backing against which the open cell gasket of the unit itself can seal This is critical in preventing ...

Page 13: ...ed with no flanges see Figure 23 place the louver in the opening so that it is recessed a minimum 1 16 2mm beyond the building facade or as directed in the architectural plans If specified in the plans secure the louver in the wall using mechanical fasteners supplied by others appropriate to the installation See Figure 21 for suggested fastening With the louver solidly in place run a bead of caulk...

Page 14: ...lade wall louver also available with Ventimatic shutter 2 Optional exterior grille matches unit ventilator wall louver in material and design Mounted on wall louvers 3 Optional steel interior wall grille should be used to conceal the interior wall opening whenever the Ventimatic shutter is not located behind shelf cabinets Hardware to mount the interior wall grille is not included CAUTION For prop...

Page 15: ...in place de energized and in accordance with the plans Before Sliding the Unit into Place Sliding of this unit to the wall can be made easier with the assistance of Caster Kit P N 105629001 Figure 28 A piece of cardboard placed under the unit will make this job easier and reduce marring the floor Do not leave cardboard under unit after installation Be certain that the field supplied electrical con...

Page 16: ...ter tight with silicone sealer or similar To Clean the Drain Pan 1 Remove the shallow and deep upper plates from the unit see Figure 29 and Figure 30 2 Spray water into the drain pan on the high end to wash debris to the low end drain end 3 Remove any debris making sure that the drain holes are not obstructed 4 Wipe the drain pan with a cloth 5 Reinstall the upper plates Mounting Hole Locations Di...

Page 17: ...lope with these instructions Envelope also contains allen wrench to provide access to unit Push the unit ventilator tight to the wall structure so that the outdoor air seals are compressed Secure the wall fasteners to prevent the unit ventilator from moving and tipping over Table 4 Mounting holes dimension C Unit Size C 024 60 1524 mm 040 72 1829 mm 048 84 2134 mm Figure 32 Unit mounting holes loc...

Page 18: ...nt Air 80 F 70 F 80 F 70 F Max Ambient Air 100 F 85 F 100 F 85 F Min Entering Air 1 2 50 F 50 F 50 F 40 F Normal Entering Air db wb 80 67 F 70 F 80 67 F 70 F Max Entering Air db wb 1 2 100 83 F 80 F 100 83 F 80 F Table 6 Air limits C SI units Standard Range Units Geothermal Range Units Cooling Heating Cooling Heating Min Ambient Air 10 C 10 C 5 C 5 C Normal Ambient Air 27 C 21 C 27 C 21 C Max Ambi...

Page 19: ...ot apply Teflon tape to assure a tight seal Note Do not over torque fittings The maximum torque without damage to fittings is 30 foot pounds If a torque wrench is not available use as a rule of thumb finger tight plus one quarter turn 5 Supply and return shutoff valves are required at each conditioner The return valve is used for balancing and should have a memory stop so that it can always be clo...

Page 20: ...ues to indicate the same positive pressure that existed before the manual drain and make up valves were opened Continue for at least two 2 hours To complete the cleaning fill the system with fresh water adding a cleaning agent such as trisodium phosphate TSP Figure 34 Connections for flushing system piping Return Runout Supply Runout Mains Flexible Hose Runouts Initially Connected Together Bypass ...

Page 21: ...r ap propriate eye and hand protection Ensure all areas with shared ventilation have ample fresh air ventilation Proper ventilation is required for brazing When brazing be sure to protect unit ventilator components from overheating damage melting insulation also damage to valves wiring electronics sensors etc Ensure proper insulation of supply and return piping Proper insulation prevents loss of u...

Page 22: ...en achieved between these two coils 5 Proceed to Coil A 3 and establish proportionate balance between it and Coil A 2 by the same procedure Coil A 2 need not be read It will change in direct proportion to the change in A 2 and will remain in balance with it 6 Adjust the balancing valve in Coil A 4 until it is in proportionate balance with Coil A 3 Likewise bring Coil A 5 into proportionate balance...

Page 23: ...operating parameters operating mode temperature set points fan speed and occupancy mode The LUI has a 4 x 20 OLED display built in menu structure pass word protected with 4 keys and 2 individual LED indicators to adjust the unit ventilator operating param eters See Local User Interface for further details 4 External Signal Connection Plugs Located beneath the Local User Interface Panel three 3 mul...

Page 24: ...efore the outdoor air damper With network applications the unit mounted sensor can be overridden by a remote sensor through the network 15 Room Humidity Sensor IH optional Unit mounted humidity sensor for units capable of active dehumidification or with units using Leading Edge indoor outdoor true enthalpy comparison economizer The sensor is located in the sampling chamber front center panel where...

Page 25: ...The current unit state is also displayed Fan States 4 High constant speed compressor on high stage Medium constant speed compressor on low stage Low constant speed compressor on low stage Auto part load variable air Varies the fan speed automatically to meet the room load conditions whether the unit is in heating cooling or economizer mode The current fan speed is also displayed During low load or...

Page 26: ... DaikinApplied com MicroTech Wiring Diagram Typical Figure 43 Typical MicroTech Wiring Diagram 460V 60Hz 3Ph Note See Figure 44 on page 27 for typical MicroTech service and disconnect wiring and wiring schematic legend ...

Page 27: ...iagram Service and Disconnect 460V 60Hz 3Ph TR1 Speed Settings 048 040 024 High GN WH GN YE Med YE PK GY Low PK GY GY BK Legend Symbols Accessory or field mounted component Ground Wire nut splice Overlap point common potential wires L1 1 20 Wire link wire link ID page line ...

Page 28: ...cessory FC FD Fuse Control Transformer R4M Relay Fan Medium Speed VH Valve Heat Accessory FMI Motor Room Fan R4L Relay Fan Low Speed VC Valve Cool Accessory FMO Motor Outdoor Air Notes 1 All electrical installation must be in accordance with national and local electrical codes and job wiring schematic External wiring options see IM for the different configured options wiring to be minimum 18 gauge...

Page 29: ...sor and Outdoor Fan FLA Full Load Amps RLA Rated Load Amps LRA Locked Rotor Amps MCA Minimum Circuit Ampacity ARQ GRQ Size 048 Volt Hz Phase Voltage Range Room Fan FLA Compressor Heating Option Power Supply Min Max RLA LRA Heat Type Heater Kw Rated Heater Amps MCA Maximum Fuse 208 60 1 197 228 2 7 21 2 104 0 None 29 2 50 2 7 21 2 104 0 Elec Heat1 Low 3 elem 12 0 57 7 101 3 110 2 7 21 2 104 0 High ...

Page 30: ... in right hand compartment must be class 1 Figure 45 Electrical power On Off switch located behind front middle access panel in wire trough with power entry accessed behind right front access panel Grommeted Power Wire Entry Unit Main Power On Off Switch 2 Confirm that power is de energized and locked and tagged out 3 Plug in the unit control wiring male plug s into the appropriate female plug s P...

Page 31: ...a the unshielded twisted pair wiring LONWORKS FTT 10 A FTT 10 B BACnet GND 3 2 1 4 pin Female Connector Black Red GND RT RT By others By others Figure 49 10 pin plug MicroTech wiring diagram Unit Ventilator DO7 DO8 NO DO8 NC DO5 P6 Connector Wire Caps UVC 601A 602A 603A 604A 605A 606A 607A 608A 609A 610A DO8 Comm TB2 24VAC Comm DO13 24VAC Empty Empty External Output Option 1 Device by Others Pump ...

Page 32: ... of the Remote Wall Mounted Temperature Sensor is critical for proper room temperature sensing see Figure 52 and Figure 53 The UVC is capable of using one of four remote wall mounted temperature sensors It is recommended that additional wires be pulled to compensate for potential wire breakage or future options 6 Button Digital Adustable Sensor PN 910247458 8 wires 4 Button Digital Adustable Senso...

Page 33: ...d Wiring Remote Mounted Temperature Sensor NOTICE All low voltage field wiring connections must be run in shielded cable with the shield drain wires connected as shown in the field wiring diagrams The low voltage field wiring connections have all been centrally located within the unit ventilator and are easily accessible To simplify field connections multi pin plugs are factory provided and pre wi...

Page 34: ...he base rotating it down and snapping into place 7 Secure the cover by backing out the lock down screws using a 1 16 Allen wrench until it is flush with the bottom of the cover Figure 55 Junction box mounting hardware is provided for both junction box and drywall installation Cover lockdown screws 1 16 allen Mounting base plate Drywall Mounting 1 Place the base plate against the wall where you wan...

Page 35: ...th the National Electric Code NEC and local codes Do NOT run any of this device s wiring in the same conduit as other AC power wiring Tests show that fluctuating and inaccurate signal levels are possible when AC power wiring is present in the same conduit as the signal lines If you are experiencing any of these difficulties please contact your Daikin representative Figure 56 Sensor circuit board T...

Page 36: ...er to unit wiring diagram located on inside right front panel for actual wiring Improper wiring can cause equipment and property damage DANGER Disconnect all electrical power before servicing unit to prevent injury or death due to electrical shock CAUTION Use copper conductors only Unit terminals are not designed to accept other types of conductors Failure to do so may damage the equipment Figure ...

Page 37: ...195 8 498mm 217 8 556mm 6 152mm 6 152mm 6 152mm 27 686mm 3 76mm 27 686mm 3 76mm 27 686mm 3 76mm 27 686mm 3 76mm End View With 2 x 5 1 4 51mm x 133mm Step Down Dashed lines indicate kickplate 277 8 708mm 2 51mm 5 1 4 133mm Figure 59 6 end panel dimensions All Dim in inches 16 422mm Deep End Panels 21 556mm Deep End Panels Top View 277 8 708mm 277 8 708mm 7 178mm 2 1 2 64mm 1 25mm 277 8 708mm 18 457...

Page 38: ... end compartment and thread into tinnerman clips on the end panel Attach the end panel to the unit using four 4 5 32 hex socket head fasteners provided Figure 61 1 end panel Tinnerman Nut Clip on End Panel 1 End Panel 1 4 20 1 2 Screw 1 4 20 Tinnerman Nut Clip over Lower Hole in Unit Base 1 4 20 1 2 Screw Steel Kickplate 21 Unit Projection 2 Refer to Figure 62 for 6 thick end panel a Position brac...

Page 39: ... switch or unit on off switch is located behind the right front end compartment panel Remove the center front panel pull out the filter and replace with a clean filter Replace the center panel and restart the unit Filters should be replaced during the first week of placing into service to prevent dirt carry over into the internals of the unit and back into the classroom see Figure 63 A periodic fi...

Page 40: ...oises All panels should be in place and properly fastened Check for air leaks and condensation Compressor should run without noise If noisy check electrical phases to verify that the compressor is rotating correctly Phase reversal can damage the compressor and void the warranty Installer Owner s Responsibility Protect your investment read carefully Your Daikin express written limited warranty does...

Page 41: ...n outdoor and indoor fan shaft tight Yes No K Have the fan shaft end bearing and room fan motor been oiled if applicable Yes No L Are outdoor air and return air dampers operating properly Yes No M Is the filter clean Yes No N Is there excessive noise or vibration Yes No If Yes corrective action if any ______________________________________________________________________________ Il Controls check ...

Page 42: ..._______________________________________ Signature ________________________________________________________________________________________________________ Date ____________________________________________________________________________________________________________ Comments ___________________________________________________________________________________________________________ ______________...

Page 43: ... not put R 410A in a 300 PSIG rated cylinder Note The units are designed for the cooling mode of operation and fail safe to cooling The reversing valve is energized for the heating mode of operation All information above is based on ISO standard 13256 1 and tested at these conditions WARNING Recycle recovery equipment must be designated for R 410A R 410A pressure is greater than R 22 Improper equi...

Page 44: ...andard 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 representative go to www DaikinApplied com Aftermarket Services To find your local parts office visit www DaikinApplied com or call 800 37PARTS 800 377 2787 To find your local service office visit ww...

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