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Literature Change History

September 2022

New H3 Series IOM.

May 2023

Added metric conversions equivalents in text and tables. Added new warning labels. Added
safety statements. Added KAIC tables for fuse sizing. Removed gas heating information.

Summary of Contents for H3 Series

Page 1: ...life FOR YOUR SAFETY Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WARNING WARNING QUALIFIED INSTALLER Improper installation adjust...

Page 2: ...ration 33 Thermostat Operation 33 Split System DX Cooling Operation and Control 33 Chilled Water or Non Compressorized DX Cooling Operation 33 Steam or Hot Water Preheating Operation 33 Electric Heati...

Page 3: ...ating 60 Phase and Brownout Protection Module 61 Filter Replacement 63 Replacement Parts 63 AAON 63 Filter Information 66 Refrigerant Piping Diagrams 70 H3 Series Startup Form 71 Maintenance Log 76 Ma...

Page 4: ...le Microchannel Air Cooled Condenser Coil Liquid Sub Cooling Values Imperial 42 Table 17 R 410A Refrigerant Temperature Pressure Chart Metric 44 Table 18 R 410A Refrigerant Temperature Pressure Chart...

Page 5: ...External control box electrical connections 26 Figure 16 H3 internal control panel electrical connections 27 Figure 17 Drain Trap 30 Figure 18 Typical wiring diagram with EC motor 32 Figure 19 Shows t...

Page 6: ...h or property damage Installation and service must be performed by a qualified technician service agency or the gas supplier Before servicing disconnect all electrical power to the unit More than one...

Page 7: ...marked for identification of where appropriate Personal Protective Equipment PPE be worn must be followed WARNING UNIT HANDLING To prevent injury or death lifting equipment capacity shall exceed unit...

Page 8: ...ers with a pH value greater than 8 5 after mixing without first using an aluminum corrosion inhibitor in the cleaning solution CAUTION WARNING CAUTION Do not use oxygen acetylene or air in place of re...

Page 9: ...cause excessive force against the panel WARNING Ensure that sufficient dampers will be open to provide air path before fan is allowed to run WARNING This appliance is not intended for use by persons w...

Page 10: ...nit and its efficiency 5 Every unit has a unique equipment nameplate with electrical operational and unit clearance specifications Always refer to the unit nameplate for specific ratings unique to the...

Page 11: ...D Up to 6 000 cfm E Up to 10 000 cfm UNIT ORIENTATION R Right Hand Connections L Left Hand Connections REVISION B Second Revision VOLTAGE 1 230V 1 60Hz 2 230V 3 60Hz 3 460V 3 60Hz 4 575V 3 60Hz 8 208...

Page 12: ...tine 8 fpi N Single Serpentine 10 fpi P Half Serpentine 10 fpi R Quarter Serpentine 10 fpi Feature 1 SUPPLY FAN 1A SUPPLY AIR BLOWER CONFIGURATION A 1 Blower 1 High Efficiency EC Motor 1A Supply Air B...

Page 13: ...D Options A B E Options A C F Options B C G Options A B C H Remote Safety Shutdown Terminals J Energy Recovery Wheel Rotation Detection K Options A H L Options A J M Options B H N Options B J P Option...

Page 14: ...BOX 0 Standard None A 2 Pleated 30 Eff B 12 Cartridge MERV 11 C 12 Cartridge MERV 13 D 12 Cartridge MERV 14 E 2 Pleated MERV 8 12 Cartridge MERV11 F 2 Pleated MERV 8 12 Cartridge MERV13 G 2 Pleated ME...

Page 15: ...3 ton Capacity 5 70 ton Capacity Feature 13 ENERGY RECOVERY TYPE 0 No Energy Recovery Wheel A Energy Recovery Wheel Total High CFM Polymer C Energy Recovery Wheel Total High CFM 1 Purge Polymer E Ener...

Page 16: ...355 mm Exhaust Fan 1 7 kW EC Motor K Dual 450 mm Exhaust Fan 3 0 kW EC Motor L Dual 450 mm Exhaust Fan 6 0 kW EC Motor M Option A Piezo Ring N Option B Piezo Ring P Option C Piezo Ring Q Option D Piez...

Page 17: ...y Trained Service Technician A copy of this IOM must be kept with the unit WARNING These units must not be used for heating or cooling at any time during any phase of construction Very low return air...

Page 18: ...rred in transit If damage is found it must be noted on the carrier s Freight Bill A request for inspection by carrier s agent must be made in writing at once Check nameplate to ensure the correct mode...

Page 19: ...section of this document for instructions on assembling the sections Locating the Unit Placement of the unit relative to ductwork electrical and plumbing must be carefully considered Return air plenum...

Page 20: ...learance in the table is needed for either top or bottom but not both The clearance is for supply fan removal Table 3 Coil Removal Clearances Figure 2 Minimum Clearance Required for Access to Unit H3...

Page 21: ...ts are equipped for suspended installations Lift the unit into position by supporting the unit with the skid used for shipping The air handling unit must be installed level and care must be taken to p...

Page 22: ...onfigurator string Back will always be the same side as the pre filter and return air opening Front will always be the side opposite the pre filter and return air opening H3 Series Return Air Back Sup...

Page 23: ...g Box 2 Air Handler 3 Final Filter 4 Electric Heat 5 Energy Recovery Figure 7 H3 Schematic with 1 Mixing Box 2 Air Handler and 3 Final Filter 2 Connect Power and Control Wiring between sections H3 Ser...

Page 24: ...edges of the box without the flanges Figure 9 Apply Gasket Push the mixing box and air handling sections together so that the flange from the air handling section is inside of the mixing box Figure 10...

Page 25: ...ox is designed with two mounting holes on the back panel Make sure the wall fasteners can hold the weight of the control box See Figure 14 External control boxes provided with conduit exceeding 0 2 m...

Page 26: ...formance Range is the min and max voltage for which the unit performance is designed and rated to give acceptable performance Route power and control wiring separately through the utility entry in the...

Page 27: ...way through the foam panel 3 Using a hole saw cut the hole through the metal on both sides of the foam part 4 With a knife cut the foam out of the hole 5 After the conduit is installed in the hole cau...

Page 28: ...eviation from the average voltage divided by the average voltage Example 221V 230V 227V 3 226V then 100 226V 221V 226V 2 2 which exceeds the allowable imbalance Check voltage imbalance at the unit dis...

Page 29: ...must be used Fuses and Circuit Breakers The interrupting rating of fuses and circuit breakers is to be determined based on the KAIC rating of the unit Refer to the wiring diagram for fuse sizing Tabl...

Page 30: ...through trap must be at least equal to the absolute value of the negative static pressure in the drain pan plus 2 54 centimeters one inch To calculate the static pressure at the drain pan add the pre...

Page 31: ...f operation after the unit has been started up as dust and debris from construction may cause premature filter loading Replace the filters if necessary Supply Fans H3 Series units are equipped with di...

Page 32: ...the maximum fan speed for a particular application Maximum fan speed is determined by the ECat submittal Typically this max speed will be the rpm set at the factory The fan speed can be modulated usin...

Page 33: ...DX Cooling Operation and Control When a call for cooling G and Y1 Y2 etc is made the supply blower motors and compressors will energize Chilled Water or Non Compressorized DX Cooling Operation Valve c...

Page 34: ...g can also be added to exterior water piping if yearly winterizing is necessary After the coil is drained fill with an antifreeze solution using a circulating pump Then thoroughly drain Supply Fans E...

Page 35: ...efficiency and durability For routine quarterly cleaning first clean the coil with the below approved coil cleaner After cleaning the coils with the approved cleaning agent use the approved chloride...

Page 36: ...e method Rinse Using pressurized potable water such as a garden hose 689 5 kpa 100 psi rinse the coils and continue to always work in sections panels Continue until all coil areas on the inside of the...

Page 37: ...are supplied from a building chilled water source All valve controls for the cooling coil operation are field supplied and field installed Table 12 Chilled Water Coil Sweat Connection Sizes Model H3...

Page 38: ...he compressor before it is started Always control the unit from the thermostat or control panel never at the main power supply except for emergency or complete shutdown of the unit During the cooling...

Page 39: ...n suction lines greater than 22 2 mm 7 8 OD mount in either the 4 o clock or 8 o clock position Figure 23 TXV Bulb Position Hot Gas Reheat Hot Gas Reheat HGRH is available for use with DX systems that...

Page 40: ...of a system in the field must be based on determination of liquid sub cooling and evaporator superheat On a system with a TXV liquid sub cooling is more representative of the charge than evaporator s...

Page 41: ...mode to check for correct operation 2 The sub cooling value in this table is for the unit running in cooling mode of operation If unit is a heat pump operate the unit in heating mode to check for corr...

Page 42: ...the evaporator Read gauge pressure at the suction line close to the evaporator Convert the pressure obtained to a saturated temperature using the appropriate refrigerant temperature pressure chart Sub...

Page 43: ...ased sub cooling Correct an overcharged system by reducing the amount of refrigerant in the system to lower the sub cooling The system is undercharged if the superheat is too high and the sub cooling...

Page 44: ...3 9 2544 9 58 9 3630 9 0 6 681 2 14 4 1129 4 29 4 1749 3 44 4 2580 1 59 4 3677 1 0 0 695 7 15 0 1149 4 30 0 1775 5 45 0 2616 0 60 0 3724 0 0 6 709 5 15 6 1169 4 30 6 1802 4 45 6 2651 8 60 6 3771 6 1 1...

Page 45: ...0 30 96 8 57 161 0 84 249 8 111 369 1 138 526 6 31 98 8 58 163 8 85 253 7 112 374 2 139 533 3 32 100 9 59 166 7 86 257 5 113 379 4 140 540 1 33 102 9 60 169 6 87 261 4 114 384 6 141 547 0 34 105 0 61...

Page 46: ...2343 5 58 9 3353 2 0 6 615 2 14 4 1029 4 29 4 1603 6 44 4 2376 2 59 4 3396 1 0 0 628 1 15 0 1047 6 30 0 1628 4 45 0 2409 2 60 0 3439 5 0 6 641 2 15 6 1066 0 30 6 1653 5 45 6 2442 6 60 6 3483 3 1 1 65...

Page 47: ...80 2 30 87 4 57 146 7 84 229 0 111 339 9 138 486 3 31 89 2 58 149 3 85 232 6 112 344 6 139 492 6 32 91 1 59 151 9 86 236 2 113 349 4 140 498 8 33 93 0 60 154 6 87 239 8 114 354 3 141 505 2 34 94 9 61...

Page 48: ...electrical connections Wiring diagrams are provided with each motor When wired according to wiring diagram motor rotates clockwise when viewed from the shaft pulley side By carefully reviewing the in...

Page 49: ...purge angle is factory set to 5 degrees If a different angle is required complete the following steps to adjust the purge 1 Loosen the three purge adjusting screws 2 Adjust purge sector to the specif...

Page 50: ...lk in cabinet A business card or two pieces of paper can be used as a feller gauge typically each 1 mm 004 thick by placing it between the face of the wheel and pile seal Using the paper determine if...

Page 51: ...rotation 2 Before applying power to drive motor confirm wheel segments are fully engaged in wheel frame and segment retainers are completely fastened See Segment Installation Diagram 3 With hands and...

Page 52: ...elow 25 C 77 F Tightly cover all electric parts and bearings while used pressurized water Remove excess water before reinstalling the wheel Polymer Energy Recovery Cleaning To clean gain access to the...

Page 53: ...n each side of the selected segment opening 4 With the embedded stiffener facing the motor side insert the nose of the segment between the hub plates Segment Installation 5 Holding segment by the two...

Page 54: ...y after power is applied with no visible slippage during start up Polymer Wheel Drive Motor and Pulley Replacement 1 Disconnect power to wheel drive motor 2 Remove belt from pulley and position tempor...

Page 55: ...nd tighten retaining screws Rotate wheel in clockwise direction to determine that wheel rotates freely with slight drag on seals 9 Reinstall bearing locking collar Rotate collar by hand in the directi...

Page 56: ...r sensory irritation intensity Class 4 air has highly objectionable fumes or gases and potentially contains dangerous particles bio aerosols or gases at a concentration high enough to be considered ha...

Page 57: ...can adsorb and desorb moisture and also build up so as to reduce airflow In a reasonably clean indoor environment such as a school or office building measurable reductions of airflow or loss of sensib...

Page 58: ...Wheel H3 size A B return air filters access through top and bottom of the filter box Figure 30 H3 A or B Cabinet Outside Air Filter Access H3 size A B outside air filters access through removing the s...

Page 59: ...et Outside Air Filter Access H3 size C outside air filters access through removing the sheet metal piece shown above and removing another sheet metal piece once inside Figure 33 H3 D or E Cabinet Ener...

Page 60: ...anger and supply fan areas Adjust airflow after installation to obtain an air temperature rise within the range specified on the unit rating plate at the required external static pressure The maximum...

Page 61: ...fter the restart time delay All settings and the last 4 faults are retained even if there is a complete loss of power DPM Setup Procedure With the supply voltage active to the module you can setup all...

Page 62: ...Screen Vertical Format Default 2 sec Manual 2S 3S 4S 5S 6S 7S 8S 9S 10S 30S 1M 2M 3M 4M Phase Imbalance Percentage Screen Vertical Format Default 5 3 4 5 6 7 8 9 10 Fault Screen Vertical Format 0 most...

Page 63: ...ement Parts Parts for AAON equipment may be obtained from your local representative https www aaon com find a rep When ordering parts reference the unit serial number and part number AAON Warranty Ser...

Page 64: ...64...

Page 65: ...65...

Page 66: ...G Pleated MERV 8 and Pleated MERV 11 H Pleated MERV 8 and Pleated MERV 13 J Pleated MERV 8 and Pleated MERV 14 Table 23 H3 Series B Cabinet Unit Filters Feature 6B Qty Size cm in Type 0 No Pre Filter...

Page 67: ...MERV 8 and Pleated MERV 11 H Pleated MERV 8 and Pleated MERV 13 J Pleated MERV 8 and Pleated MERV 14 Table 25 H3 Series D Cabinet Unit Filters Feature 6B Qty Size cm in Type 0 No Pre Filters A 1 50 8...

Page 68: ...A 1 40 6 x 63 5 x 5 1 16 x 25 x 2 Pleated MERV 8 B 1 40 6 x 63 5 x 30 5 16 x 25 x 12 Cartridge MERV 11 C Cartridge MERV 13 D Cartridge MERV 14 E 1 40 6 x 63 5 x 5 1 and 40 6 x 63 5 x 30 5 16 x 25 x 2...

Page 69: ...x 30 5 20 x 20 x 2 and 16 x 20 x 2 and 20 x 20 x12 and 16 x 20 x 12 Pleated MERV 8 and Cartridge MERV 11 F Pleated MERV 8 and Cartridge MERV 13 G Pleated MERV 8 and Cartridge MERV 14 Table 30 H3 Serie...

Page 70: ...1 70 x 30 5 x 5 1 24 x 12 x 2 Pleated MERV 8 B 1 50 8 x 63 5 x 5 1 20 x 25 x 2 Pleated MERV 8 C 2 70 x 70 x 5 1 24 x 24 x 2 Pleated MERV 8 D 4 40 6 x 50 8 x 5 1 1 50 8 x 50 8 x 5 1 16 x 20 x 2 20 x 2...

Page 71: ...equate for service and operation Yes No 4 Do all access doors open freely and are the handles operational Yes No 5 Have all shipping braces been removed Yes No 6 Have all electrical connections been t...

Page 72: ...Nameplate Amps________ Number hp L1 Volts Amps L2 Volts Amps L3 Volts Amps 1 2 VFD Frequency________________ VAV Controls_________________ Energy Recovery Wheel Assembly Wheels Spin Freely Check Rotat...

Page 73: ...ion N A Liquid N A Refrigeration System 3 Cooling Mode Pressure Saturated Temperature Line Temperature Sub cooling Superheat Discharge N A N A Suction N A Liquid N A Refrigeration System 4 Cooling Mod...

Page 74: ...id N A Refrigeration System 2 Heating Mode Heat Pump Only Pressure Saturated Temperature Line Temperature Sub cooling Superheat Discharge N A N A Suction N A Liquid N A Refrigeration System 3 Heating...

Page 75: ...ers and piping Yes No 4 Is the glycol the proper type and concentration N A if water Yes No 5 Is there a minimum load of 50 of the design load Yes No 6 Has the water piping been insulated Yes No 7 Wha...

Page 76: ...ument any service repair or adjustments AAON Service and Warranty Departments are available to advise and provide phone help for proper operation and replacement parts The responsibility for proper st...

Page 77: ...Maintenance Log E Coated Coil...

Page 78: ...istory September 2022 New H3 Series IOM May 2023 Added metric conversions equivalents in text and tables Added new warning labels Added safety statements Added KAIC tables for fuse sizing Removed gas...

Page 79: ......

Page 80: ...f the unit available Parts For replacement parts please contact your local AAON Representative It is the intent of AAON to provide accurate and current product information However in the interest of p...

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