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Marvair Scholar 2.0 I&S Manual 08/2021 Rev.2

APPENDIX F - OUTDOOR LOUVER/COLLAR INSTALLATION

1.01 TOOLS/FIELD FURNISHED SUPPLIES

WARNING

TO AVOID PERSONAL INJURY, ADEQUATE PROTECTIVE CLOTHING MUST BE

WORN AND PRECAUTIONS IN HANDLING AND INSTALLING THIS EQUIPMENT

MUST BE PRACTICED AT ALL TIMES.

• Power Drill/Driver and Extension

• T25 TORX Bits

• Sealant Caulk (tube)

• Caulking Applicator

• Ladder (as appropriate)

• Masonry Penetrating Fasteners (6 per collar)

• Scribe/punch

1.02 INSPECTION/UNPACKING/HANDLING

Louver/collar assemblies, louvers and collars are shipped to the job site in corrugated

containers. Do not stack these containers. Louvers and collars are to be handled as fragile

items.

IMPORTANT

IMMEDIATELY UPON RECEIPT, INSPECT THIS EQUIPMENT TO DETERMINE VISIBLE

AND CONCEALED DAMAGE. ALL DAMAGE MUST BE REPORTED TO THE FREIGHT

CARRIER WITHIN 15 DAYS, ON THE FREIGHT CARRIER’S FORM

A. The following louver/collar assemblies, louvers and collars are suitable for all Scholar 2.0

units.
Part Number Description

93206

Clear anodized louver/collar assembly

93206-BRZ

Dark bronze louver/collar assembly

To minimize damage, remove the louver and louver parts from the corrugated container just

prior to installation. Retain the bag of screws and caps for installation of the louver.

WARNING

THIS EQUIPMENT MUST BE INSTALLED IN CONFORMANCE WITH ALL

APPLICABLE LOCAL AND NATIONAL ELECTRICAL, PLUMBING AND BUILDING

CODES.
THIS EQUIPMENT SHOULD BE INSTALLED AND SERVICED ONLY BY A TRAINED

PROFESSIONAL HVAC SERVICE PERSON.

WARNING

BEFORE INSTALLING, SERVICING OR MAINTAINING THIS EQUIPMENT, SWITCH

THE ELECTRIC POWER TO “OFF” AT THE DISCONNECT LOCATED BEHIND THE

KEY LOCKED DOOR ON THE LOWER FRONT PANEL. FAILURE TO DO THIS COULD

RESULT IN PROPERTY DAMAGE, BODILY INJURY OR DEATH.

1.03 PREPARATION OF SCHOLAR 2.0 HEAT PUMP OR AIR CONDITIONER FOR

LOUVER/COLLAR INSTALLATION

Note:

Custom louvers may have installation requirements different from louvers with a

collar. Follow engineer’s drawings and instructions for installation of these louvers.

Содержание Marbair VAA2030-2048-2060

Страница 1: ...0 VAA2030 2048 2060 2 to 5 Ton Cooling Capacity with 2 Stage Compressors WARNING SAFETY REQUIREMENTS If the information in these instructions are not followed exactly a fire may result causing propert...

Страница 2: ...quipment Important SafetyPrecautions 1 USE CARE when LIFTING or TRANSPORTING equipment 2 TRANSPORT the UNIT UPRIGHT Laying it down on its side may cause oil to leave the compressor resulting in DAMAGE...

Страница 3: ...08 Assembly Disassembly Instructions 17 2 09 Snout Field Assembly Steps 23 2 10 Installation Through the Outside Wall 24 2 11 Electrical Condensate And Wet Heat Hook Ups 25 2 12 Remote Thermostat Ins...

Страница 4: ...e 5 Dimension Between Scholar 2 0 Heat Pump or Air Conditioner Air Box and Finished Outside Wall for Outdoor Louver Collar Assembly Installation 24 Figure 6a Remote Wall Mounted Thermostat Wiring Deta...

Страница 5: ...architectural louvers please refer to the Marvair brochure entitled Architectural Extruded Aluminum Louvers Marvair offers a full range of thermostats to meet virtually every requirement The unit can...

Страница 6: ...rd Start P Hard Start w Low Ambient CCH R Crank Case Heater CCH 1 Low Ambient w FCC 2 Low Ambient w FCC EFS None 17 Indoor Air Quality Features D Dry Bulb Sensor E Dry Bulb Sensor w Dirty Filter G Dir...

Страница 7: ...1195 44 08 1120 TOP VIEW SUPPLY 46 00 1168 33 00 838 34 11 866 34 08 866 13 00 330 RIGHT VIEW REAR VIEW RETURN ON BOTH SIDES 2 75 70 2 75 70 1 43 36 13 55 344 BOTTOM VIEW CABINET FRONT FRESH AIR EXHAU...

Страница 8: ...2 0 I S Manual 04 2022 Rev 2 8 Dimensional Data 48 47 13 16 44 1 8 94 3 16 48 12 1 2 5 SUPPLY 34 7 8 12 15 16 33 46 ROOM EXHAUST RETURN Figure 3 VAA2060 Heat Pump and Air Conditioner w Plenum Base Di...

Страница 9: ...added when 120 or 240 VAC coils are required B High and Low Refrigerant Pressure and Loss of Charge Switches These switches render the compressor and outdoor fan motor inoperative whenever the limits...

Страница 10: ...04 THERMOSTATS AND SUB BASES A Thermostats for Air Conditioners and Heat Pumps with two stages heating 1 Digital 7 day 5 2 and 5 1 1 day programmable thermostat Two stage heat Two stage cool Manual or...

Страница 11: ...x heat and minimum cool set points Adjustable temperature differential Remote sensor capable Keypad lock out Status LED F or C selectable For use with models VAIA only Marvair P N 50186 C Humidity Con...

Страница 12: ...e Genie Lift or equivalent 2 02 INSPECTION UNPACKING HANDLING A The Scholar 2 0 series of heat pumps and air conditioners are shipped to the job site on 4x4 wood base framing and enclosed in shrink wr...

Страница 13: ...MATION CONCERNING THIS EQUIPMENT 2 03 LOCATION SELECTION AND PREPARATION WARNING THE SCHOLAR 2 0 HEAT PUMP AND AIR CONDITIONER MUST BE INSTALLED IN CONFORMANCE WITH ALL APPLICABLE LOCAL AND NATIONAL E...

Страница 14: ...wer requirements line sizing and fuse sizing is shown on data label on unit The power leads can enter the heat pump or air conditioner either through the bottom or rear The locations of the knockouts...

Страница 15: ...items are to be completed prior to final installation A Remove the two shipping screws that are at the top and bottom of the front door B Open the front door for access to the lag bolts that hold the...

Страница 16: ...galvanized steel with a minimum thickness of 019 Ductwork must be firmly attached secured and sealed to prevent air leakage Do not use duct liner on inside of supply duct within four feet of the unit...

Страница 17: ...fset Be sure the surface is level or provisions are made to level the unit upon installation L If the outdoor air box was removed reinstall it prior before placing the Scholar 2 0 unit in its final po...

Страница 18: ...NOTED DECIMAL FRACTIONAL ANGULAR Marv This drawing contains confidential infor information is not to be disclosed or uti Marvair a Division of AIRXCEL Inc 03 MAT L NA 2020 10 02 1 ECO REV DATE Last R...

Страница 19: ...19 Marvair Scholar 2 0 I S Manual 04 2022 Rev 2 D Remove the screws securing the electrical panel covers...

Страница 20: ...r Scholar 2 0 I S Manual 04 2022 Rev 2 20 E After removing the interior panel cover disconnect the wiring to the blower assembly and the four wires to the transformer F Disconnect the condensate drain...

Страница 21: ...21 Marvair Scholar 2 0 I S Manual 04 2022 Rev 2 G Remove screws to separate upper and lower sections H Using a mechanical lifting device separate upper and lower sections...

Страница 22: ...nit install the duct flanges and side panel grommets Scan this QR code to view a brief video demonstration of the Scholar unit separation procedure IMPORTANT TO SEPARATE SYSTEM THE FRONT DOORS EXTERNA...

Страница 23: ...TDISCHARGEAIRUPPER DIVERTER 1 11 SMV15026X SNOUTDISCHARGEAIRLOWER DIVERTER 1 12 SMV15032X SNOUTFRESHAIRINLETDUCT 2 13 SMV15028X SNOUTDISCHARGEAIRLOWER DIVERTER 1 14 SMV15029X SNOUTDISCHARGEAIRUPPER DI...

Страница 24: ...ul to clear the appropriate stubouts The heat pump or air conditioner when installed properly should have a clearance between the air box outside edge and the finished outside wall as shown in Figure...

Страница 25: ...r see Appendix E at end of this manual 2 11 ELECTRICAL CONDENSATE AND WET HEAT HOOK UPS WARNING ALL ELECTRICAL PLUMBING AND REFRIGERATION WORK MUST MEET THE REQUIREMENTS OF LOCAL AND NATIONAL CODES AN...

Страница 26: ...ystem Verification of proper rotation is made by observing that the suction pressure drops and the discharge pressure rises when the compressor is energized An alternate method of verification for sel...

Страница 27: ...n the Scholar 2 0 heat pump or air conditioner in accordance with Figure 9 and in accordance with the thermostat instructions National Electric Code and with local electrical codes where they prevail...

Страница 28: ...ch The unit control system is factory wired to operate upon an input signal from any appropriate 24 VAC control thermostat or DDC control system The unit control system is factory wired to energize th...

Страница 29: ...rip The other lead is connected to HUM on PLC as noted on the wiring schematic of the heat pump G There is a factory supplied plastic drain hose that is left loose in the bottom of the fresh air secti...

Страница 30: ...1 A2 1 11 50063 TRANSFORMER 1 14 70049 MOTOR SPEED CONTROL 1 15 80611 2X4 BOX FOR FAN SPEED CONTOLLER 1 16 50503 DIN RAIL 1 17 81228 TERMINAL BLOCK BLUE 2 COND 4 18 81226 END STOP WAGO 9 19 81236 TERM...

Страница 31: ...ED SCALE 1 10 WEIGHT REV DWG NO D SIZE TITLE NAME DATE COMMENTS Q A MFG APPR ENG APPR CHECKED DRAWN FINISH MATERIAL INTERPRET GEOMETRIC TOLERANCING PER DIMENSIONS ARE IN INCHES TOLERANCES FRACTIONAL A...

Страница 32: ...damper and PowerVent Fresh Air Systems The two position open closed ventilation module is equipped with a motorized damper and pressure relief and provides up to 450 cfm of outside air The damper posi...

Страница 33: ...nditioner PLC Programmable Logic Controller Microprocessor Essential to the operation of the Scholar 2 0 heat pump and air conditioner is a factory installed PLC microprocessor The PLC controller impr...

Страница 34: ...OWN Scroll Down Decrease Modify a Value 3 RIGHT Move Cursor Right In Edit Mode Back to Next Menu Page 4 LEFT Move Cursor Left In Edit Mode Go Back to Previous Menu Page Press and Hold to Exit Edit Mod...

Страница 35: ...g ASCT TIMER Preset values and can be changed default of 3 minutes and with the lowest time of 3 seconds From there the rest of preset are in 1 minute increments all the way up to 10 minutes DEFROST T...

Страница 36: ...Control Box STEP 1 Insert small flat tip screwdriver into the center of the hole on the Exhaust Motor Speed controller seen in Figure 9 Electrical Control Box STEP 2 Turn Clockwise Right to increase...

Страница 37: ...ernal humidity controller operates the Scholar to control the humidity in the classroom EHDD Electric Heat During Defrost Allows the user to select whether electric heat operates when the heat pump en...

Страница 38: ...e system the thermostat calls for cooling by turning on the G Y and O inputs to the system the Blower will run at Y1 speed settable on the PLC screen If 2nd stage signal is requested the blower will r...

Страница 39: ...off and the HC Output will be on Refer to the following table G Y W2 ODS SCKT IBM CC OFM HTR ON OFF OFF OFF OFF ON OFF OFF OFF ON ON OFF OFF OFF ON ON ON OFF ON ON ON OFF OFF ON ON ON OFF ON ON ON ON...

Страница 40: ...is accumulated Ex if the 30min defrost time is selected that is the time it will take to go into defrost mode While in defrost if the defrost function is interrupted by a power outage or a sequence th...

Страница 41: ...PS comes on during the first three minutes bypass time of operation In other words the compressor will start and operate for three minutes even with the LPS switch open Once the bypass timer has elaps...

Страница 42: ...f jumper is in place or tied into external control Reheat disabled X X If jumper is in place or tied into external control Reheat disabled DFC X X Indicates that this function should be on 1 Outdoor T...

Страница 43: ...10 0 0 100 Default MARVAIR VDA UNIT BACNET POINTS Read Write Read Only BACnet Input Boolean Points BACnet Output Boolean Points G IN CC Y IN HC Y2 IN IBM O IN OFM W2 IN RVS HUM IN RHS VENT IN OAM EMS...

Страница 44: ...re development system A BACnet IP network with B AAC profile Concurrent communication of different protocols using the same Ethernet port is allowed use of a web browser in addition to another Etherne...

Страница 45: ...ATH SERIOUS INJURY OR EQUIPMENT DAMAGE 4 Bridge EcoStruxure Machine Expert HVAC software allows monitoring of Modbus RTU slaves where M172P controller is the master Modbus RTU In a EcoStruxure Machine...

Страница 46: ...SCHOLAR 2 0 models with two stage compressors only the cooling mode operates in two stages Mechanical heating compressor is a single stage as is the dehumidification mode 1 Turn the disconnect in the...

Страница 47: ...same time c Lowering the set point slowly should turn the electric heat off The indoor blower will turn off 90 seconds later 8 Automatic Changeover For an automatic changeover remote thermostat the pr...

Страница 48: ...Marvair Scholar 2 0 I S Manual 08 2021 Rev 2 48 APPENDIX A WIRING DIAGRAMS Fig 1 Typical Wiring Schematic for 2T 5T A C 240V 1 Phase w GreenCube...

Страница 49: ...49 Marvair Scholar 2 0 I S Manual 08 2021 Rev 2 Fig 2 Typical Wiring Schematic for A C 240V 3 Ph Power w GreenCube Hot Gas Reheat BacNet...

Страница 50: ...Marvair Scholar 2 0 I S Manual 08 2021 Rev 2 50 Fig 3 Typical Wiring Schematic for A C 460V 3 Phase w GreenCube Hot Gas Reheat BacNet...

Страница 51: ...51 Marvair Scholar 2 0 I S Manual 08 2021 Rev 2 Fig 4 Typical Wiring Schematic for HP 240V 1 Phase...

Страница 52: ...Marvair Scholar 2 0 I S Manual 08 2021 Rev 2 52 Fig 5 Typical Wiring Schematic for HP 240V 3 Phase...

Страница 53: ...53 Marvair Scholar 2 0 I S Manual 08 2021 Rev 2 Fig 6 Typical Wiring Schematic for 11EER HP 40V 3 Phase...

Страница 54: ...Marvair Scholar 2 0 I S Manual 08 2021 Rev 2 54 Fig 7 Typical Wiring Schematic for HP 460V 3 Phase...

Страница 55: ...55 Marvair Scholar 2 0 I S Manual 08 2021 Rev 2 Fig 8 Typical Wiring Schematic for 5 Ton HP 460V 3 Phase...

Страница 56: ...Marvair Scholar 2 0 I S Manual 08 2021 Rev 2 56 Fig 9 Typical Wiring Schematic for HP 240V 1 Phase w GreenCube Hot Gas Reheat BacNet...

Страница 57: ...57 Marvair Scholar 2 0 I S Manual 08 2021 Rev 2 Fig 10 Typical Wiring Schematic for HP 240V 3 Phase w GreenCube Hot Gas Reheat BacNet...

Страница 58: ...Marvair Scholar 2 0 I S Manual 08 2021 Rev 2 58 Fig 11 Typical Wiring Schematic for HP 460V 3 Phase w GreenCube Hot Gas Reheat BacNet...

Страница 59: ...per unit Size Type MERV1 Rating Return Air Filter 2 46 x 24 x 2 Pleaded disposable 72 Fresh Air Ventilation Filter 1 12 x 20 x 1 Fiberglass disposable N A Exhaust Air Ventilation Filter 1 12 x 20 x 1...

Страница 60: ...VISIBLE AND CONCEALED DAMAGE ALL DAMAGE MUST BE REPORTED TO THE FREIGHT CARRIER WITHIN 15 DAYS ON THE FREIGHT CARRIER S FORM The label on the base stand identifies the part number of the base stand B...

Страница 61: ...e sure that the wall opening for the Scholar 2 0 heat pump and air conditioner air box is located properly taking the height of the base stand into account before proceeding to install the base stand...

Страница 62: ...e air box through the wall opening and maintaining clearance between the plenum as appropriate and the ceiling The Scholar 2 0 heat pump aligns and rests on the base stand After the cabinet is resting...

Страница 63: ...TO THE FREIGHT CARRIER WITHIN 15 DAYS ON THE FREIGHT CARRIER S FORM WARNING THIS EQUIPMENT MUST BE INSTALLED IN CONFORMANCE WITH ALL APPLICABLE LOCAL AND NATIONAL ELECTRICAL PLUMBING AND BUILDING COD...

Страница 64: ...r the front panel has been removed lift the plenum onto the top of the Scholar 2 0 unit WARNING THE PLENUM IS HEAVY USE CARE WHEN PLACING THE PLENUM ON TOP OF THE SCHOLAR 2 0 HEAT PUMP OR AIR CONDITIO...

Страница 65: ...nd standards 90A and 90B The duct system must be engineered to insure sufficient air flow through the unit to prevent over heating of the heater element This includes proper supply duct sizing suffici...

Страница 66: ...to protect the surfaces from damage Leave the film on the painted surfaces until the strips have been installed and construction work in the area is completed IMPORTANT IMMEDIATELY UPON RECEIPT INSPEC...

Страница 67: ...ssemblies louvers and collars are suitable for all Scholar 2 0 units Part Number Description 93206 Clear anodized louver collar assembly 93206 BRZ Dark bronze louver collar assembly To minimize damage...

Страница 68: ...D COLLAR A Louver Collar Assembly The preassembled louver collar is fastened from the outside of the building in one assembly 1 The louver collar assembly is fastened directly to the air box as shown...

Страница 69: ...ce and provides excellent aesthetics 3 When the outside air box extends beyond the outside wall then the louver 2 is used The collar 3 can be selected to provide a finished trim appearance to the wall...

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