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Freshman Series - Owner's Manual - Installation, Operation, and Service Instruction - Version 1.1 EN

5.5 Cleaning Supply and Relief Fans

1. Remove Fan from unit. (Refer to Section 5.5)
2. Take a brush or similar cleaning tool and clean blades of fan to remove built up

attached dirt.

3. Use a vacuum or compressed air and clean entire fan including the blades.
4. Replace fan in unit. (Refer to Section 5.5)

Figure 3 | Motor Fan Assembly

Wear eye protection

when working with

compressed air.

Standard Motor Fan Assembly

Blower Fins

(Blow dirt out with compressed air)

Fan Housing

Motor Mounts

Standard Electric Motor

General Preventative Maintenance

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Содержание changeair Freshman CA H 1000A NA VP DD

Страница 1: ...d the installation operating and maintenance instructions thoroughly before installing or servicing this equipment Installation and maintenance must be done by a qualified installer service agency or authorized dealer OPERATION OF UNIT DURING CONSTRUCTION MAY VOID THE WARRANTY This manual contains instructions specific to the installation operation and service of your unit If installed with the GH...

Страница 2: ...2 Freshman Series Owner s Manual Installation Operation and Service Instruction Version 1 1 EN ...

Страница 3: ...ation of this appliance read these instructions thoroughly before attempting installation or operation Failure to follow these instructions may result in improper installation adjustment service or maintenance possibly resulting in fire electrical shock carbon monoxide poisoning explosion property damage personal injury or death 6 3 General Assembly and Installation 20 6 4 Electrical Connections 2...

Страница 4: ...otentially hazardous situation which if not avoided could result in death or serious injury CAUTION indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury It is also used to alert against unsafe practices and hazards involving only property damage HAZARDOUS VOLTAGE Disconnect all power before working on this equipment Failure to observe this instruc...

Страница 5: ...Postal Code ___________________________________ Country ___________________________________________ Model Number s ____________________________________ __________________________________________________ Serial Number s ____________________________________ __________________________________________________ Date of Purchase____________________________________ Date of Installation____________________...

Страница 6: ...e conditions as stated above in the limited standard parts only warranty section EXTENDED OPTIONAL WARRANTIES Changeair offers extended warranties on the compressor the gas heat exchanger or the complete Changeair unit at an extra cost to the customer Extended warranty packages may be purchased through an authorized Changeair supplier and are available in either a prorated parts only or replacemen...

Страница 7: ...VICES LOSS OF PRODUCTION OR COST OF CAPITAL WHETHER OR NOT CHANGEAIR HAS BEEN ADVISED OF THE POSSIBILITY OF ANY SUCH DAMAGES WHETHER OR NOT FORESEEABLE AND WHETHER OR NOT BASED ON A BREACH OF CONTRACT NEGLIGENCE OR GROSS NEGLIGENCE WARRANTY CLAIM PROCEDURE If customer believes one or more components of the Changeair product is defective or working improperly customer shall contact its local Change...

Страница 8: ...8 Freshman Series Owner s Manual Installation Operation and Service Instruction Version 1 1 EN 4 0 Model Number Nomenclature 4 1 Table 1 Freshman Series Nomenclature Model Number Nomenclature ...

Страница 9: ...Air Handlers therefore one or more of the procedures may not apply to your particular unit s 5 2 Cleaning The Vertical Classroom Unit Exterior Annually or as needed thoroughly clean cabinet exterior using a soft absorbent cloth mild soap and water and or non abrasive non acidic cleaner Interior 1 Clean the interior annually or as needed 2 Check and clean or replace air filter s monthly or as requi...

Страница 10: ...circuits Each unit will be equipped with either 1 or 2 disposable pleated filters a 1 4 washable filter or a combination of washable and disposable filters Cleaning or Changing Filters Recommended once a month or as required 1 Turn OFF electrical supply to unit 2 Open the upper and lower front service panels with the key provided Keys may vary 3 Slide out dirty filters and replace with new ones Fi...

Страница 11: ... 5 Pull fan assembly straight out of unit and clean dirt from fan blades and around motor housing 6 Replace fan assembly in track push in fully and re secure with fastening screws 7 Reconnect wire harness to fan motor 8 Close service panels and lock with key turn electrical power ON and test operation of the unit A qualified service technician should perform the following Supply Fan Assembly Faste...

Страница 12: ...ol and clean blades of fan to remove built up attached dirt 3 Use a vacuum or compressed air and clean entire fan including the blades 4 Replace fan in unit Refer to Section 5 5 Figure 3 Motor Fan Assembly Wear eye protection when working with compressed air Standard Motor Fan Assembly Blower Fins Blow dirt out with compressed air Fan Housing Motor Mounts Standard Electric Motor General Preventati...

Страница 13: ... test Cooling Coil Gain access to back side of coil through supply fan opening removal required blow through design or through filter opening draw through design 1 Using a coil brush remove dislodge excess foreign matter 2 Vacuum loosened foreign matter 3 Using compressed air clean coil in reverse direction of air flow and or using an environmentally safe cleaner spray top side of coil and allow t...

Страница 14: ...s Cleaning Filters is recommended once a month or as required 1 Turn OFF electrical supply to unit 2 Open the upper and lower front service panels with the key provided Keys may vary 3 Slide out dirty filters Fig 5 wash with water flushing in opposite direction of air flow let dry and replace 4 Close the upper and lower front service panel and lock with key Figure 5 Removing Energy Recovery Filter...

Страница 15: ...OFF electrical power to the air handler 2 Open front service panels with the key provided 3 Slide return air filter up and out of brackets and set aside 4 Remove the screws holding the exchange core cover plate and remove plate 5 Loosen the screws on the exchange core cover plate 6 Slide exchange core cover plate up and tighten screws to hold plate in upper position 7 Slide core away from retainin...

Страница 16: ...r Figure 7 Cleaning Fixed Core Plates 5 10 Removing Relief Fan s Motor 1 Turn OFF electrical power to the air handler 2 Open front service panels with the key provided 3 Slide return air filter up and out of brackets and set aside 4 Remove the screws holding the exchange core cover plate and remove plate 5 Remove the screws on the exchange core cover plate and remove plate 6 Slide cores away from ...

Страница 17: ...ug the electrical wires running to the recovery fan motor 8 Remove the 4 bolts located on top of the return air damper pan that holds the recovery fan motor 9 Pull down on fan and remove from unit 10 Clean dirt from fan blades and around motor housing using compressed air or cloth 11 Reinstall recovery fan motor 12 Reconnect electrical plug to recovery fan motor 13 Reinstall exchange cores cover p...

Страница 18: ...l wheels with a non acid based evaporator coil cleaner or alkaline detergent solution Non acid based coil cleaner such as KMP Acti Clean AK 1 concentrate in a 5 solution has been demonstrated to provide excellent results Do not use acid based cleaners aromatic solvents temperatures in excess of 170 OF or steam damage to the wheel may result Soak in the cleaning solution until grease and tar deposi...

Страница 19: ...mmable gas liquid piping or tubing ducts girders or wall studs that will interfere with the installation of the unit or its utility connections OUTDOOR CLEARANCE Rear to nearest obstruction 36 Sides to nearest obstruction 0 Bottom to ground 0 INDOOR CLEARANCES TO COMBUSTIBLE All sides top and bottom 0 Discharge grille to obstruction 36 Discharge grille to ceiling 6 INDOOR CLEARANCES FOR SERVICE Fr...

Страница 20: ...he back of the exterior louver to allow the condensate hoses to pass between the blades of the louver to the exterior Classroom Air Handlers weigh anywhere from 420lbs to 1070lbs and may be heavy Care must be taken in the handling and moving of this unit to prevent it from becoming unstable and tip ping over once the shipping crate is removed Never lean a ladder against the unit or put weight on o...

Страница 21: ...rd weather proofing procedures when installing and caulking the exterior louver and wall sleeve to prevent the infiltration of water into the wall cavity 11 Install the kick plate cover along the front at the base of the unit ventilator and fasten into place along the sides with a couple of screws 12 Apply a small bead of silicone around the outside of the air handler where the unit meets the wall...

Страница 22: ...across the top of the opening to comply with local building code requirements 1 Prior to assembly it may be necessary to trim the depth of the wall sleeve to suit the finished wall thickness If the finished wall depth is greater than that of the wall sleeve or if the unit has a rear standoff it may be necessary to add extensions to the sleeve and dividers which must be fabricated in the field 2 As...

Страница 23: ...outside of the building Fasten to the wall through the standard 2 flange Refer to Information Package and installation diagrams shipped with the unit screws not provided NOTE Two condensate drain lines exit through the back of the unit and are supported by the exterior louver Refer to custom shop and installation drawings and instructions in the Information Package that was sent with the Unit for ...

Страница 24: ...extension 1 Cut or construct an opening through the wall adherent to the appropriate size 2 On the exterior run a bead of weatherproof caulking around the perimeter of the wall opening 3 Insert the relief damper assembly into the wall opening from the outside with the louver blades pointing down and to the outside Securely fasten it to the wall through the standard 2 flange 4 On the interior seal ...

Страница 25: ...er 5 Place the Side Panel against the back of the unit in the orientation shown and square up the corners and edges and then securely fasten the panel to the unit using x 10 round head self tapping sheet metal screws Place screws through the 1 front mounting flange of the standoff panel into the back of the unit at approximately 18 apart or in the starting holes provided 6 Repeat with opposite sid...

Страница 26: ...s time it may be easiest to cut any necessary holes or service knockouts that may be required in the plenum and install any plenum takeoffs or supply grilles before proceeding 6 12 Rear Plenum Assembly RPA We recommend the use of x 10 round head self tapping sheet metal screws to fasten this accessory to the air handler The rear plenum assembly is pre assembled to minimize field installation proce...

Страница 27: ... corners Place a screw through the 1 front mounting flange of the RPA side panel into the back of the unit Proceed by similarly placing a screw into the opposite top corner and then down both of the RPA side flanges at approximately 18 apart Do not mount the RPA to the unit through the top or bottom cover of the RPA as these may interfere with the removal of components during future service mainte...

Страница 28: ...peration and Service Instruction Version 1 1 EN 7 0 Installation Drawings 7 1 Figure 13 Freshman CA H 1000A NA VP DD NOTE All installation drawings provide information for installation of hot water steam and electric heat units Installation Drawings ...

Страница 29: ...nstallation Operation and Service Instruction Version 1 1 EN 7 2 Figure 14 Freshman CA H 1000A NA VPS DD Installation Drawings NOTE All installation drawings provide information for installation of hot water steam and electric heat units ...

Страница 30: ...nstallation Operation and Service Instruction Version 1 1 EN 7 3 Figure 15 Freshman CA H 1600A NA VP DD NOTE All installation drawings provide information for installation of hot water steam and electric heat units Installation Drawings ...

Страница 31: ...nstallation Operation and Service Instruction Version 1 1 EN 7 4 Figure 16 Freshman CA H 1600A NA VPS DD NOTE All installation drawings provide information for installation of hot water steam and electric heat units Installation Drawings ...

Страница 32: ...sonnel who attempt to do repairs based on the trouble shooting procedures outlined in this section 8 3 Controls Control of the unit is achieved through an external device which is generally termed thermostat The complexity of the control is a wide range from a simple mercury switch to a computerized system of information monitoring room condi tions to process its control 8 4 Internal Controls and ...

Страница 33: ...an economizer circuit will process the signal This is a multi function board controlling the cool signal to the compressor optional and damper positioning On models with mechanical air conditioning it will lock out the mechanical cool below 60 F outside temperature and intro duce 80 fresh air to achieve cooling On models without me chanical air conditioning free air cooling is the only function He...

Страница 34: ... fan relay and motor Problem Excessive Noise 1 Blower wheel rubbing Check for proper positioning and clearance of blower wheel Adjust wheel as necessary 2 Loosen blower wheel Ensure wheel is properly tightened on motor shaft 3 Blower wheel out of balance Replace blower 4 Motor mounting Motor mounts may have come loose Problem Damper Not Opening or Working Improperly 1 Does ventilator require occup...

Страница 35: ...r evaporator coil 1 Confirm fan and compressors are running at full speed 2 Check for dirty air filter 3 Check for dirty evaporator coil 4 Possible restrictions in the line TXV capillary tube or evaporator 5 Check thermostat set point If room temperature drops below 70 F 21 C the evaporator may ice over during extended operation 6 Check for low refrigerant charge Problem Compressor Cycles Off and ...

Страница 36: ...replacement parts always give the following information Model and Serial Number of Vertical Classroom Air Handler and Gas Heating Module Installation date of appliance Part Number off of component Description of part 9 1 Obtaining Parts Replacement parts and service are available through your local Changeair representative To find your local representative contact Canada or U S A Phone 519 688 636...

Страница 37: ...37 Freshman Series Owner s Manual Installation Operation and Service Instruction Version 1 1 EN Notes ...

Страница 38: ...e Street Tillsonburg ON Canada N4G 5W8 50 Kanalflakt Way Bouctouche NB Canada E4S 3M5 Changeair 20170404 Freshman Series v1 1 EN Changeair reserves the right to update or continually improve their products specifications or information without notice ...

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