Daikin AZQ Installation & Maintenance Manual

Self-contained classroom unit ventilator

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CLASSROOM UNIT

VENTILATOR

SELF-CONTAINED

• MODELS AZQ, AZU, AZR

• SIZES 024- 054 (2 TO 4 1/2 TONS)

• R-32 REFRIGERANT

INSTALLATION & MAINTENANCE MANUAL

LEARN MORE AT DAIKINAPPLIED.COM

IM 1391

APRIL 2025

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Page 1 INSTALLATION & MAINTENANCE MANUAL IM 1391 APRIL 2025 CLASSROOM UNIT VENTILATOR SELF-CONTAINED • MODELS AZQ, AZU, AZR • SIZES 024- 054 (2 TO 4 1/2 TONS) • R-32 REFRIGERANT LEARN MORE AT DAIKINAPPLIED.COM ©2025 DAIKIN APPLIED | (800) 432.1342...
Page 2: Table Of Contents
Limited Product Warranty . . . . . . . . . . . . . . . . . . . . . 89 Model AZQ Valves and Piping – Typical . . . . . . . . . . 46 Condensate Piping .
Page 3: Safety Information
Polyolester Oil, commonly known as POE oil is a synthetic oil used in many Connections to and service of the MicroTech control panel must be performed refrigeration systems, and may be present in this Daikin Applied product. POE only by personnel that are knowledgeable in the operation of the equipment oil, if ever in contact with PVC/CPVC, will coat the inside wall of PVC/CPVC being controlled.
Page 4: Ul Compliance Statements For Unit Work
A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere. DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 5: Introduction
INTRODUCTION Introduction Model Nomenclature Code Category Code Item Code Designation & Description Option Product Category Unit Ventilators Air Source DX, Valve Heating Air Source DX, Face & Bypass Heating Model Type Air Source DX, Valve Reheat Design Series Design K 24,000 44,000 Nominal Capacity...
Page 6: Installation
(5) days of the delivery date and file a claim with the Stacking form provided by Daikin Applied. Refer to the Daikin Applied Freight Policy for further information. Figure 2: Stack Louvers Maximum 10 High as Shown Lifting Unit A forklift with 72″...
Page 7 INSTALLATION Figure 4: Stack Units Maximum (2) Two High as Shown Figure 5: Unit Package Dimensions Table 1: Shipping Carton Dimensions & Weights Truckload Shipping Loading Quantity of Unit Size “A” “B” “C” Weight (L x W x H) Identical Units 96"...
Page 8: Properly Identify Unit Ventilator(S)
NOTICE These are general instructions. Refer to the Daikin Applied submittal drawings for specific dimensions, unit arrangement, stub-up locations, recommended wall opening size, etc. Pre-Installation Considerations...
Page 9: Unit Location
INSTALLATION Figure 6: Typical Frame and Brick Construction with Partial Recess Textured Charcoal Bronze Unit Projection Top Internal Column for Wall (Except Fully Recessed Wall Sleeve) Bracing and Anchoring Galvanized Condenser (Outdoor) Section (by Others) Conduit (by Others) Textured, Scuff Resistant, Charcoal Bronze, Environmentally Friendly Thermosetting Urethane Wall Sleeve Junction Box Powder Paint Top...
Page 10 Rough-in Opening Location to Exterior Wall Surface Mark Interior Wall Sleeve Mark Interior Wall Surface Wall Surface 1/4" Larger 1/4" Larger than Wall than Wall Top View - Interior Sleeve Sleeve Recess Recess Dimension Dimension DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 11 INSTALLATION Cutting Exterior Wall Opening Table 3: Recommended Rough-in Dimensions for Louvers with or Without Flanges (Exterior Wall) The wall opening must be of sufficient size to allow proper, yet snug, fit of the louver and will depend on the type of wall. If the louver Width Height Unit Size...
Page 12 Wall Sleeve Splitter Bird Screen Fasteners Information Labels Optional Factory Louver Blade Mounted Exterior Grille Mechanical Fasteners (Number Required Varies with Size of Louver) Drain Notch at Bottom Bottom Flange Detail of Notches (Drain Holes) DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 13: Outside View
CAUTION Figure 19: Grille Detail Daikin Applied supplied louvers provide proper airflow. Proper unit performance has not been verified with louvers supplied from others. 1 . Figure 17 & Figure 20 on page 13 show detail of a typical louver.
Page 14: Typical Installation Methods
Fasten in a manner appropriate to the installation (see “Typical Installation Methods” on page 14). Care must be taken if fasteners are to be placed in the frame. If this is necessary, DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 15 INSTALLATION Figure 24: Typical Louver Installation with Sloped Flashing CAUTION A space must exist between the bottom back edge of the wall sleeve and the Unit sloping sealed cement mortar base to allow moisture to drain away from the condenser section. Do not fill this space with mortar (Figure 23).
Page 16 Pitch the splitters toward the louver for water drainage. Daikin Applied supplied louvers provide proper airflow. Proper unit performance has not been verified with louvers supplied from others. Grille must be flush with louver to provide proper airflow.
Page 17 INSTALLATION Figure 26: Masonry Wall Application with Flush Louver WWW.DAIKINAPPLIED.COM IM 1391...
Page 18 Pitch the splitters toward the louver for water drainage. Daikin Applied supplied louvers provide proper airflow. Proper unit performance has not been verified with louvers supplied from others. Grille must be flush with louver to provide proper airflow.
Page 19 INSTALLATION Figure 28: Masonry Wall Application with Recessed Louver CAUTION Maximum of 2" (51 mm) louver recess from face of brick WWW.DAIKINAPPLIED.COM IM 1391...
Page 20 If it is to be installed in a panel wall, the louver should be placed so that it is as flush as possible with the inside wall. DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 21 INSTALLATION Angle Bracket Mounting to Exterior Surface Figure 32: Angle Bracket on Louver Mounts to Exterior Surface Figure 32 shows a typical application where an angle bracket is affixed to the edges of the louver and then the entire assembly is mounted from the outside by fastening to the exterior surface using suitable hardware.
Page 22: Masonry Installation
4 . Seal the top and two sides from the inside with waterproof caulk to make it weathertight. Do not seal the bottom flange. To do so may trap water behind the flange. See CAUTION above. DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 23: Installing The Ventimatic Shutter Assembly
CAUTION For proper operation, the VentiMatic shutter assembly must be mounted on the The Daikin Applied VentiMatic Shutter Assembly is a one-way same wall as the unit ventilator louvers to neutralize wind effect. shutter. It is a continuously variable, gravity-actuated, room...
Page 24 NOTE 3: The optional steel interior wall grille is 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. DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 25 INSTALLATION Wall Sleeve Details Mount The Junction Box To Wall Sleeve NOTICE Figure 42: Wall Sleeve Electric junction box is strapped to the wall sleeve during shipping and is field mounted. Mount the junction box to the wall sleeve as shown in Figure 43 with five (5) provided screws.
Page 26 11⅜″ in depth. □ Sides of rough opening smooth and sealed Consult approved Daikin Applied submittal drawings for the job to determine the proper amount of recess, if any, and recommended □...
Page 27 INSTALLATION Typical Wall Sleeve Applications The following is a brief description of three typical methods of installation. Many variations are possible, depending on wall thickness. Thick Masonry Wall with Full Recess This example shows the wall sleeve fully recessed into a masonry (thick) wall. Table 12: Thick Masonry Wall with Full Recess Wall Sleeve Top View Wall Column for...
Page 28 " 16⅝" (422 mm) (25 mm) (289 mm) 30" 28" (762 mm) (711 mm) 5/8" 8⅛" Splitters (by Others) (16 mm) (206 mm) 4½" (102 mm) 1/2" (13 mm) 28" (711 mm) Louver (See CAUTION) DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 29: General Considerations
INSTALLATION Table 13: Wall Thickness, Unit Projection Into Room Figure 53: Wall Sleeve Sealant Material Where It Contacts The Condenser Section Drain Flange Unit Projection into Room and Wall Sleeve Type Wall 28" 21⅞" 19⅝" 16⅝" Thickness Louver “W” Figure 52 Figure 51 Figure 50 Figure 49...
Page 30 Drain Notches in Flange of Condenser Section Drain Pan 1 . Place the wall sleeve into the wall opening and recess it the amount shown on the approved Daikin Applied submittal drawings. 2 . Level the wall sleeve horizontally and plumb the wall sleeve vertically.
Page 31 INSTALLATION CAUTION CAUTION Locate drain lip at bottom of vertical louver to allow proper drainage. Bird Wall sleeve must be anchored to an internal wall column or other suitable screen must always be on side toward unit. support. Figure 56: Recessed Wall Sleeve – Mounting and Sealing Splitters to Wall Sleeve and Louver Wall Sleeve Must Be Sealed Watertight at Top and Both Ends at Louver Must Be Sealed Air and Watertight at Location Shown.
Page 32 6 . Fabricate splitter enclosure and/or splitters to fit space Wall sleeve must be anchored to an internal wall column or other suitable between louver and wall sleeve, at marked reference points support. (see splitter details). DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 33 INSTALLATION Figure 58: Sealing Full Projection Wall Sleeve to Louver Intake Without Horizontal Air Splitters Louver Must Be Sealed Watertight at Top Apply Sealant (by Others) to Bottom Edge of Unit (Not Shown) and to Top Flange and Both End Flanges of Wall and Both Ends.
Page 34: Wall Sleeve Electrical Connections
Refer to “Unit Electrical and Control Connections” on page 60 for main power connections and field wired communication module, and “MicroTech Wall Mounted Sensors” on page 67 for remote wall mounted sensor controls, if any. DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 35 INSTALLATION Check wall sleeve nameplate to verify it is the correct voltage and Figure 65: Detail of Sw1-Main Power Connections amperage for the AZ model to be installed. Whenever the electric stub-up is brought in through the floor within the confines of the wall sleeve and any portion of the wall sleeve is recessed into the wall, the watertight conduit must be flush with the floor to permit installation of the wall sleeve.
Page 36 Figure 66: Wall Sleeve with Electric Stub-Up From Bottom 2.5/1.75" Dia. Knockout .875" Dia. Knockouts (3) SW1-Main Power Nonfused “On-Off” Switch (Daikin Applied) Wall Sleeve Safety Precaution: Reverse this Cover When Unit is Removed from Wall Sleeve to Cover Opening in the End of Switch Box.
Page 37 INSTALLATION Figure 68: Wall Sleeve Junction Box Details For MicroTech DANGER Disconnect all electrical power before servicing unit to prevent injury or death due to electrical shock. CAUTION AZ unit compressors are single-direction rotation compressors and can be damaged if rotated in the wrong direction. For this reason, proper phasing of electrical power is important.
Page 38 Exhaust Fan Valve Signal Normally Open NOTE: Not all external input options are available for all models. Figure 71: 12-Pin Plug MicroTech Control Wiring Diagram NOTE: Not all external input options are available for all models. DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 39: Position The Unit Ventilator
INSTALLATION Before Moving Unit Up to Wall Opening 3 . Lift rear of unit off of the skid by tipping unit forward while supporting the unit from the front, until it is possible to slide Checklist skid out from under the unit. GENTLY LOWER the rear of the unit to the floor.
Page 40 Figure 75: Slide the Unit Up to the Wall Sleeve Figure 76: Slide the Unit Up to the Wall Sleeve Threaded Studs Figure 74: (Optional) Indoor Section Caster Shown in Right End Compressor Compartment Wall Sleeve Threaded Studs for Mounting to Unit DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 41: Water Piping
INSTALLATION Check to see that the unit ventilator is level from end to end and Figure 77: Bottom Splitter Rail Seal Removal back to front. Using a 4’ level is recommended. Place the washers over the threaded studs and tighten the mounting nuts (see cautions).
Page 42: Water Coil Connections
Figure 81: Vent and Drain Plug Figure 79: Hot Water Coil Connections NOTE: Consider adding piping unions for future servicing (by NOTE: Unscrew the vent plug one or two turns to manually vent others). system. DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 43: Heating Coils
INSTALLATION AZU and AZQ Hot Water Coil Connection Figure 84: 19⅝″ Room Projection From Wall Locations Room Projection Wall Heating Coils 65 = 1-row Hot Water Coil 66 = 2-row Hot Water Coil S = Supply R = Return Figure 82: 28″ Room Projection From Wall...
Page 44 NOTE 3: All coils have the supply and return connections in the 11" left hand compartment. (279 mm) NOTE 4: Piping connections are parallel flow through hot water coil. 6⅞" (173 mm) NOTE 5: All dimensions are approximate. 15⅜" (381 mm) DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 45: Connection Locations
INSTALLATION AZU, AZR, and AZQ Steam Coil Figure 92: 19⅝″ Room Projection From Wall Connection Locations Room Projection Wall Heating Coils 68 = Low Capacity Steam Coil 69 = High Capacity Steam Coil S = Supply R = Return Figure 90: 28″ Room Projection From Wall 16⅛"...
Page 46: Model Azq Valves And Piping - Typical
INSTALLATION Model AZQ Valves and Piping – 3-Way EOC Valve Typical Face & Bypass End of Cycle (EOC) Valves 2-Way EOC Valve When piping the 3-Way EOC valve, refer to label to determine the direction of flow. The valve should be installed so that there is a 2″...
Page 47 INSTALLATION Figure 96: 2-Way EOC Steam Valve Dimensions Table 16: F&BP EOC Valve Body Specifications 2-Way Valve 3-Way Valve Connections 3/4" FNPT, 1" FNPT 3/4" FNPT Static Pressure 300 psi (2100 kPa) 300 psi (2100 kPa) Close-Off 13 & 15 psi 13 psi (90 kPa) Pressure (90 &...
Page 48 Refer to Daikin Mounting EOC Valves Applied factory instruction sheet shipped with the unit for port orientation and a piping schematic.
Page 49: Typical Water Coil Piping - Eoc Valve Piping
Figure 102 Through Figure 105 The 3-way EOC hot water valve is furnished normally open to the Three-way EOC control valve (Daikin Applied accessory or by others) coil. When the valve is de-energized (off) there is full flow through Coil air vent (Daikin Applied) the coil.
Page 50 Return NOTE: See label furnished on 2-way valve to determine direction of flow through the valve. Erie EOC steam valves always have the direction of steam flow piped to the B-port of the control valve. DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 51 INSTALLATION 2-Way Modulating Valve (Hot Water) Table 18: 2-Way Actuator Specifications (HW) Power Supply 24 VAC, ±20%, 50/60 Hz, 24 VDC, ±10% 3ft [1m], 18 GA plenum cable with 1/2″ Electrical Connection conduit connector Overload Protection electronic throughout 0° to 95° rotation 2 to 10 VDC, 4 to 20 mA w/ ZG-R01 (500 Operating Range Y Ω, 1/4 W resistor)
Page 52 15 PSI Size Rating B215HT073 0 .73 10 .99 13 .71 16 .11 18 .33 28 .03 36 .74 1/2" B215HT186 1 .86 22 .34 34 .93 41 .06 46 .70 71 .42 93 .60 DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 53 INSTALLATION 3-Way Modulating Valve (Hot Water) Table 27: 3-Way Actuator Specifications (HW) Power Supply 24 VAC, ±20%, 50/60 Hz, 24 VDC, ±10% 3ft [1m], 18 GA plenum cable with 1/2" Electrical Connection conduit connector Overload Protection electronic throughout 0° to 95° rotation 2 to 10 VDC, 4 to 20 mA w/ ZG-R01 (500 Operating Range Y Ω, 1/4 W resistor)
Page 54: Steam Modulating Valve Selection
Refer to the arrows on the modulating valve body to determine the direction of flow. If the valve is mounted improperly, the unit will not operate properly and damage to the valve may result. Flow is from B to A. DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 55: Valve Piping (Typical)
Energizing the valve reduces the volume of The optional factory supplied Daikin Applied MicroTech 2-way water flow in a modulating fashion. Modulating steam valve is furnished normally open to the coil.
Page 56: Condensate Piping
Figure 111: 2-Way Steam Modulating Valve Control - Same End Drain Connection (Piping Within Unit End Compartment) The optional factory-supplied Daikin Applied MicroTech Modulating Control Valve for steam applications is the 2-way type. It is shipped separately from the unit ventilator to help avoid shipping damage, yet provide the installer with maximum flexibility in making the field piping connection.
Page 57: Field Installed Accessories
FIELD INSTALLED ACCESSORIES Field Installed Accessories 2 . Refer to Figure 113 for 6″ thick end panel. a . Position bracket (YC1934) on wall so angle is 5″ from end of unit and near bottom. Installing Optional End Panel b . Mark and drill required hole for device to fasten bracket to wall (not included).
Page 58: End Panel Dimensions
All Dim . in 16⅝" (422 mm) 19⅝" (498 mm) 21⅞" (556 mm) Deep End Panels 28" (711 mm) Deep End Panels inches Deep End Panels Deep End Panels Top View End View with No Cut-Out DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 59 FIELD INSTALLED ACCESSORIES Figure 116: Piping Stub-Up Details, 6″ End Panel Piping Stub-up Within Cabinet Piping Stub-up Within 6" End Panel End Panel 6" Application and Dimension Unit End Compartment Unit End Compartment Wall Line 11½ Wall Line 10¾ Left End of Unit Note: Space Available in Left End Space Available at Left End of Unit Left End of Unit...
Page 60: Electrical And Controls
Provided for field wiring of: and tagged-out. — Remote Wall Mounted Temperature Sensor: 2 . Verify that all wiring has been hooked up per the Multiple options available. Contact your Daikin Applied instructions in the “Wall Sleeve Electrical Connections” representative.
Page 61 20 . Control Valve(s) (not shown): Optional accessory and automatically resets at 45°F (+/- 3°F). valve(s) may be either 2-position EOC (model AZQ) or 12 . Indoor, Direct Expansion (DX) Coil Refrigerant modulating (model AZU and AZR), to control the quantity Temperature Sensor (ICT): The sensor is installed on of water through the coil.
Page 62: Economizer Control Capabilities
Humidity Sensor) and item 18 (Room Humidity Sensor) for active dehumidification (reheat) or to determine if outdoor air can be • Heat: Heating and economizer operation only used for “free”, economizer cooling operation. • Cool: Cooling and economizer operation only DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 63: Occupancy Modes
The outdoor air damper will index based on the Service Tool or a network. fan speed to maintain the required minimum cfm (cubic feet per minute) of ventilation air. Electrical Data Table 35: AZU & AZQ – Size 024 Voltage Range Compressor Heating Option Power Supply...
Page 64 35 .71 Electric Heat Options are without Compressor and Outdoor Fan. Legend Full Load Amps Locked Rotor Amps Rated Load Amps Minimum Circuit Amps Table 37: AZU & AZQ – Size 036 Voltage Range Compressor Heating Option Power Supply Indoor Outdoor...
Page 65 42 .21 Electric Heat Options are without Compressor and Outdoor Fan. Legend Full Load Amps Locked Rotor Amps Rated Load Amps Minimum Circuit Amps Table 39: AZU & AZQ – Size 044 Voltage Range Compressor Heating Option Power Supply Indoor Outdoor...
Page 66 51 .78 Electric Heat Options are without Compressor and Outdoor Fan. Legend Full Load Amps Locked Rotor Amps Rated Load Amps Minimum Circuit Amps Table 41: AZU & AZQ – Size 054 Voltage Range Compressor Heating Option Power Supply Indoor Outdoor...
Page 67: Microtech Wall Mounted Sensors
ELECTRICAL AND CONTROLS Table 42: AZR – Size 054 Voltage Range Compressor Heating Option Power Supply Indoor Outdoor Rated Volt/Hz/Phase Heater Maximum Fan FLA Fan FLA Min . Max . Heat Type Heater Fuse Amps 3 .2 6 .8 30 .2 178 .0 None, Steam –...
Page 68: Typical Connections For Temperature Sensor Applications
The capped wire whips are built into the wall sleeve. The mating-connections from the MicroTech control Window Exposure board plug into the wall sleeve wire whip harnesses when the unit ventilator is installed and connected to the wall sleeve. DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 69: Drywall Mounting
1/16″ Allen wrench until it is flush with the bottom of condensation, erroneous readings and sensor failure. To prevent these the cover. conditions, Daikin Applied recommends sealing the conduit leading to the junction box with fiberglass. Figure 124: Junction Box Mounting (Hardware is Provided for Both Junction Box and Drywall Installation.)
Page 70: Typical Wiring
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 Applied representative. Table 44: Unit Ventilator MicroTech Board to Room Temperature Sensor Wiring...
Page 71: Electromechanical Unit Wiring Connections
ELECTRICAL AND CONTROLS Electromechanical Unit Wiring The Adjustable Analog Relay (AAR) board is intended to provide notification of a refrigerant sensor failure. Relay 1 on the AAR Connections will be energized under normal operating conditions (closed circuit between C1 and N.O., open circuit between C1 and N.C.) DANGER and energized when the MT6210 Mitigation Controller detects Disconnect all electrical power before servicing unit to prevent injury or death...
Page 72: Typical Electric Heat Wiring Diagrams
ELECTRICAL AND CONTROLS Typical MicroTech Wiring Diagrams Figure 127: Electromechanical Controls – A2L Leak Mitigation Figure 128: MicroTech Controls – A2L Leak Mitigation DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 73 ELECTRICAL AND CONTROLS Figure 129: Typical MicroTech Controls Wiring Diagram – 208V / 60Hz / 1Ph WWW.DAIKINAPPLIED.COM IM 1391...
Page 74 ELECTRICAL AND CONTROLS Figure 130: Typical MicroTech Wiring Diagram – Service and Disconnect – 208V / 60Hz / 1Ph DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 75: Typical Microtech Wiring Diagrams
NOTE 2: External wiring options - see IM for the different configured options, wiring to be minimum 18 gauge, 90°C. NOTE 3: EC motors are factory programmed for specified airflow. Contact Daikin Applied for replacement. NOTE 4: Cap extra wire. Switch wire 42A to RD wire for 208V operation.
Page 76 ELECTRICAL AND CONTROLS Typical Electric Heat Wiring Diagrams Figure 131: Electric Heat Wiring Diagram – Typical 460 V/60 Hz/3 Ph DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 77 ELECTRICAL AND CONTROLS Figure 132: Electric Heat Wiring Diagram – Typical 460 V/60 Hz/3 Ph WWW.DAIKINAPPLIED.COM IM 1391...
Page 78 NOTE 8: For 230V operation, switch wire 509, 508B, and 505 to 240V terminal in the transformer. NOTE 9: Cap all unused transformer leads. NOTE 10: Devices in legend may or may not be on unit. DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 79: Operation
□ Unit is square and level and is running smoothly and quietly. Provide completed Check, Test and Start form to your local Daikin Applied representative and specifying engineer for □ Refrigerant Detection System for refrigerant leak mitigation verification that proper start-up was completed. Please see the has been tested.
Page 80: Maintenance
NOTICE Motor manufacturer recommends not oiling the room fan motor. Filter(s) Daikin Applied single-use filters are standard on all self-contained unit ventilators. Permanent wire mesh and renewable media filters are available in lieu of single-use filters. • Single-use filters feature Amerglas media. They are designed to be used once and discarded.
Page 81: Refrigerant Information
REFRIgERANT INFORMATION Refrigerant Information NOTICE Refer to Table 46 for the altitude adjusted room area calculation referenced later in this manual. Refrigerant Guidelines The indoor equipment mitigation requirements are calculated at sea level. For higher altitudes, adjust the minimum room area WARNING specified on or near the serial plate by the corresponding altitude This unit contains R-32, a class A2L refrigerant that is...
Page 82: Competence Of Personnel
• When brazing is required, the following procedures shall be WARNING carried out in the right order: Only auxiliary devices approved by Daikin Applied or declared suitable for — Remove the refrigerant. If the recovery is not required installation with R-32 shall be installed in the connecting ductwork.
Page 83: Leak Detection
REFRIgERANT INFORMATION — Purge the braze point with nitrogen during the brazing • More than 5 seconds and less than 10 seconds: procedure. The RDS control board starts a mitigation test. The board — Carry out a leak test before charging with refrigerant. will go into alarm mode and the MT6210 controller will begin the mitigation sequence.
Page 84: Handling And Storage
• Ensure that the refrigerating system is earthed prior to system shall be purged with oxygen-free nitrogen to render charging the system with refrigerant. the equipment safe for flammable refrigerants. This process • Label the system when charging is complete (if not already). DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 85: Recovery Procedure
REFRIgERANT INFORMATION • Extreme care shall be taken not to overfill the refrigerating The recovered refrigerant shall be returned to the refrigerant system. supplier in the correct recovery cylinder, and the relevant waste transfer note arranged. Do not mix refrigerants in recovery units •...
Page 86 . evacuate the refrigerant circuit; iii . purge the refrigerant circuit with nitrogen gas for 5 minutes; iv. evacuate again; and v. If compressors are to be removed, cut out the compressor and drain the oil. DAIKIN APPLIED CLASSROOM UNIT VENTILATOR...
Page 87: Appendix
F. Cabinet bent? ............................... Yes  No  G. Do outdoor (AEQ, AZU, AZQ & AZR) and indoor fans turn freely? .............. Yes  No  H. Are all setscrews on outdoor and indoor fan couplings tight? ..............Yes ...
Page 88 VI. Performed by: Company: __________________________________________________________________________________________________________ Name: _____________________________________________________________________________________________________________ Title: ______________________________________________________________________________________________________________ Signature: ______________________________________________________________________ Date: ______________________________ Comments: ____________________________________________________________________________________________________________ ___________________________________________________________________________________________________________________ ___________________________________________________________________________________________________________________ ___________________________________________________________________________________________________________________ ___________________________________________________________________________________________________________________ ___________________________________________________________________________________________________________________ Service Technician: ______________________________________________________________________________________________________ Contractor Representative: ________________________________________________________________________________________________ DAIKIN APPLIED CLASSROOM UNIT VENTILATOR © 2024 Daikin Applied • www.DaikinApplied.com Form 5F-4240 (06/2024)
Page 89: Limited Product Warranty
(collectively “Owner”) that, subject to the exclusions set forth below Company, at its option, will repair or replace defective parts in the event any product manufactured by Company, including products sold under the brand name Daikin and used in the United States or Canada, proves defective in material or workmanship within twelve (12) months from initial startup or eighteen (18) months from the date shipped by Company, whichever occurs first.
Page 90 1 - 8 0 0 - 4 3 2 - 1 3 4 2 | 7 6 3 - 5 5 3 - 5 3 3 0 LEARN MORE AT DAIKINAPPLIED.COM PART NUMBER: IM1391 © 2025 DAIKIN APPLIED | (800) 432.1342 | WWW.DAIKINAPPLIED.COM...

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