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Vertical Indoor Air Handling Units
Installation, Operation
WARNING
QUALIFIED INSTALLER
Improper
installation,
alteration, service or maintenance can
cause property damage, personal
injury or loss of life. Startup and
service must be performed by a
Factory Trained Service Technician. A
copy of this IOM should be kept with
the unit.
& Maintenance
adjustment,
V3 Series
WARNING
If the information in this manual is not
followed exactly, a fire or explosion
may result causing property damage,
personal injury or loss of life.
WARNING
FOR YOUR SAFETY
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
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Summary of Contents for AAON V3-A
- Page 1 V3 Series Vertical Indoor Air Handling Units Installation, Operation & Maintenance WARNING WARNING QUALIFIED INSTALLER If the information in this manual is not followed exactly, a fire or explosion Improper installation, adjustment, may result causing property damage, alteration, service or maintenance can personal injury or loss of life.
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Page 2: Table Of Contents
Table of Contents Safety .............................. 6 V3 Base Model Description ......................11 General Information ........................17 Codes and Ordinances ....................... 18 Receiving Unit ........................... 18 Storage ............................19 Direct Expansion (DX) Systems ....................19 Gas or Electric Heating ......................20 Wiring Diagrams ........................ - Page 3 Supply Fans ..........................69 Phase and Brownout Protection Module ................... 70 Filter Replacement ........................72 Replacement Parts ........................72 AAON Technical Support ......................72 Filter Information .......................... 73 Refrigerant Piping Diagrams ......................76 V3 Series Startup Form ......................... 77 Maintenance Log .......................... 82...
- Page 4 Index of Tables and Figures Tables: Table 1 - Electric and Gas Heating Capacities ................21 Table 2 - V3 Series Clearances ..................... 22 Table 3 - Drain Trap Dimensions ....................27 Table 4 - Steam Distributing Coil Sweat Connection Sizes ............27 Table 5 - Hot Water Coil Sweat Connection Sizes ...............
- Page 5 Figure 15 - Hot & Chilled Water Piping ..................28 Figure 16 - TXV Bulb Position ..................... 29 Figure 17 - Hot Gas Purge Circuit ....................30 Figure 18 - Energy Recovery Wheel .................... 30 Figure 19 - Cross Section of Air Seal Structure ................31 Figure 20 - Lifting Hole Locations ....................
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Page 6: Safety
Safety Attention should be paid to the following statements: NOTE - Notes are intended to clarify the unit installation, operation and maintenance. CAUTION - Caution statements are given to prevent actions that may result in equipment damage, property damage, or personal injury. WARNING - Warning statements are given to prevent actions that could result in equipment damage, property damage, personal injury or death. - Page 7 WARNING WARNING During installation, testing, servicing FIRE, EXPLOSION OR CARBON and troubleshooting of the equipment MONOXIDE POISONING HAZARD it may be necessary to work with live electrical components. Only Failure to replace proper controls qualified licensed electrician could result in fire, explosion or individual properly trained in handling carbon monoxide poisoning.
- Page 8 WARNING WARNING UNIT HANDLING WATER PRESSURE To prevent injury or death lifting Prior to connection of condensing equipment capacity shall exceed unit water supply, verify water pressure is weight by an adequate safety factor. less than maximum pressure shown Always test-lift unit not more than 24 on unit nameplate.
- Page 9 CAUTION WARNING Do not clean DX refrigerant coils with Do not weld or cut foam panel with plasma cutters or a cutting torch – hot water or steam. The use of hot When burnt the foam produces water or steam on refrigerant coils will cause high pressure inside the coil dangerous fumes.
- Page 10 1. Startup and service must be performed by 10. The supply and return air ducts must be a Factory Trained Service Technician. derived from the same space. It is recommended ducts be provided with 2. The unit is for indoor use only. See access panels to allow inspection for duct General Information section for more unit tightness.
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Page 11: V3 Base Model Description
V3 Series Feature String Nomenclature Model Options Unit Feature Options V3 - B R B - 2 - 0 - 2 6 H A - E E A : A B C H - 0 E A - F F B - 0 C 0 - A 0 0 0 0 0 0 0 0 0 0 0 0 0 B 0 0 0 V3 Base Model Description BASE MODEL... - Page 12 Relays 0 = No Heating E = VCC-X WattMaster Orion Controls System 1 = 1 Stage H = AAON Touchscreen Controller 2 = 2 Stage 3 = 3 Stage 4 = 4 Stage A = Modulating 3:1 96% Efficient Counter-Flow...
- Page 13 V3 Series Feature String Nomenclature Model Options Unit Feature Options V3 - B R B - 2 - 0 - 2 6 H A - E E A : A B C H - 0 E A - F F B - 0 C 0 - A 0 0 0 0 0 0 0 0 0 0 0 0 0 B 0 0 0 Feature 2: REFRIGERATION OPTIONS...
- Page 14 85% Eff. - MERV 13 Feature 11: EXTERNAL PAINT J = 2” Pleated - 30% Eff. - MERV 10 + 4” Pleated - 0 = Standard - None 95% Eff. - MERV 14 A = AAON Gray Paint B = Special Paint...
- Page 15 V3 Series Feature String Nomenclature Model Options Unit Feature Options V3 - B R B - 2 - 0 - 2 6 H A - E E A : A B C H - 0 E A - F F B - 0 C 0 - A 0 0 0 0 0 0 0 0 0 0 0 B 0 0 0 13: ENERGY RECOVERY TYPE Continued...
- Page 16 V3 Series Feature String Nomenclature Model Options Unit Feature Options V3 - B R B - 2 - 0 - 2 6 H A - E E A : A B C H - 0 E A - F F B - 0 C 0 - A 0 0 0 0 0 0 0 0 0 0 0 B 0 0 0 Feature 17: ENERGY RECOVERY Feature 20: CRATING...
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Page 17: General Information
IOM should be kept with entirety, consult other factory the unit. documentation or contact your AAON Sales Representative to obtain further information before manipulating this CAUTION equipment or its optional accessories These units must not be used for heating or cooling at any time during any phase of construction. -
Page 18: Codes And Ordinances
National Fuel Gas Code ANSI Z223.1 (NFPA 54) in the United States and the product warranty. Contact the AAON Can/CGA-B149 Installation Code in Canada. Technical Support for assistance with handling damaged goods, repairs, and freight claims: (918) 382-6450. -
Page 19: Storage
CAUTION CRANKCASE HEATER OPERATION Some units equipped with compressor crankcase heaters, which should be energized at least 24 hours prior to cooling operation, to clear any liquid refrigerant from compressors. If power to the unit must be off for more than an hour, turn the thermostat system switch to "OFF", or turn the unit off at the control panel, and leave the unit off until the main... -
Page 20: Gas Or Electric Heating
Note: Low Ambient Operation Condensate Drain Pans Air-cooled DX units without a low ambient Units require field installed drain p-traps and option, such as condenser fan cycling or the lines to be connected to the condensate drain 0°F low ambient option, will not operate in pans of the unit. -
Page 21: Installation
63.0 Gas fired unit combustion air inlets and vent Installation (flue) gas discharges are located on the front AAON equipment has been designed for of the unit. See Figure 2. There must be quick and easy installation. Startup and 18 inches of clearance between the front of service must be performed by Factory the V3 and building walls or equipment. -
Page 22: Table 2 - V3 Series Clearances
& walkways, adjacent buildings, X on Figure back operable windows building openings, shall conform to local codes V3-A and/or the National Fuel Gas Code, V3-B ANSI Z223.1/NFPA V3-C 36 inches inches inches National Gas & Propane Code, CSA V3-D B149.1... -
Page 23: Figure 4 - V3 Internal Control Panel With Rear Removable Access Panel Shown
front of the unit. The supply flanges can be Floor Mounted Units interchanged with the access panels if Make sure the unit is level and mounted on a necessary as the openings have the same field supplied platform with a minimum dimensions, except on size E. -
Page 24: Lifting And Handling The Unit
Lifting and Handling the Unit Before lifting unit, be sure that all shipping material has been removed from unit. Care should be taken if using spreader bars, blocking or other lifting devices to prevent damage to the cabinet, coil or fans. WARNING UNIT HANDLING Incorrect lifting can cause damage to... -
Page 25: Figure 8 - Connect Sections
A color-coded wiring diagram is laminated At each of the pre-drilled holes in the flange, and affixed to the inside of the control drill 5/16 hex head self-tapping screws to compartment access door. secure the two sections together. V3 Series units are equipped with a single point power connection. -
Page 26: Control Box
Control Box Condensate Drain Piping Some V3 units include an external control A p-trap and drain line must be installed on box that must be mounted in the field. The the drain connection, with the p-trap not to exceed 6” from the drain connection. The control box is designed with two mounting holes on the back panel. -
Page 27: Heating Coils
The X dimension on the draw-through trap installed. water steam coil should be at least equal to the absolute value connections are spun copper tube. of the negative static pressure in the drain pan plus one inch. To calculate the static pressure Connect the steam heating supply to the top at the drain pan add the pressure drops of all of the coil and the return to the bottom. -
Page 28: Chilled Water Coil
Connect the hot water heating supply to the Table 6 - Chilled Water Coil Sweat bottom of the coil and return to the top. Connection Sizes Supply and Return Model (V3-) Connection Size (OD) 1 1/8" 1 3/8" 1 5/8" D &... -
Page 29: Evaporator Coil
The copper caps must be punctured to permit with DX systems that need humidity control. a gradual escape of the pressure prior to The AAON modulating hot gas reheat system un-sweating those caps. Immediately couple diverts hot discharge gas from the condenser... -
Page 30: Purge Circuit
Purge Circuit Energy Recovery Units The purge circuit is required on hot gas reheat Some V3 units have been equipped with an or hot gas bypass lines. The purge circuit energy recovery wheel. This section is needs to be field furnished and installed at the provided to assure the energy recovery lowest point of the line set. -
Page 31: Initial Mechanical Check And Setup
By carefully reviewing the information Wheel to Air Seal Clearance within this section and following the To check wheel to seal clearance; first instructions, the risk of improper operation disconnect power to the unit, in some units and/or component damage will the energy recovery wheel assembly can be minimized. -
Page 32: Routine Maintenance And Handling
by consulting appropriate submittal, or order Routine maintenance of the Energy Recovery documents, and operate according to the Cassettes includes periodic cleaning of the control manufacturer’s instructions. If you Energy Recovery Wheel as well as inspection cannot locate installation, operation, or of the Air Seals and Wheel Drive maintenance information for the specific Components as follows:... -
Page 33: Wheel Drive Components
screws and recheck clearance with “feeler” recovery wheel will restore latent effectiveness to near original performance. gauge. To clean, gain access to the energy recovery wheel and remove segments. Brush foreign Wheel Drive Components material from the face of the wheel. Wash the The wheel drive motor bearings are pre- segments or small wheels in a 5% solution of lubricated and no further lubrication is... -
Page 34: Startup Procedure
To verify, make certain that the distance 3. With hands and objects away from moving between wheel rim and bearing beam is the parts, activate unit and confirm wheel same at each end of the bearing beam, to rotation. Wheel rotates clockwise (as viewed within 1/4 of an inch (dimension A &... -
Page 35: Service
Figure 24 - Segment Retainer To install wheel segments follow steps one through five below. Reverse procedure for Figure 23 - Hub Seal Adjustment segment removal. Service 1. Unlock two segment retainers (one on each side of the selected segment opening. CAUTION 2. - Page 36 the segment and apply downward force while 2. Using hexagonal wrench, loosen set screw guiding the segment into place. in bearing locking collar. Using light hammer and drift (in drift pin hole) tap collar in the 4. Close and latch each Segment Retainer direction of wheel rotation to unlock collar.
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Page 37: Electrical
clockwise direction to determine that wheel Electrical rotates freely with slight drag on seals. Verify the unit name plate agrees with power supply. V3 Series units are provided with 9. Reinstall bearing locking collar. Rotate single point power wiring connections. collar by hand in the direction the wheel Connection terminations are made to the rotates (see label provided on each cassette... -
Page 38: Figure 27 - External Control Box Electrical Connections
On units with external control box, electrical WARNING supply can enter through either side of the controls compartment. Electric shock hazard. Before attempting to perform any installation, service, or maintenance, shut off all electrical power to the unit at the disconnect switches. - Page 39 All wiring beyond this technician at startup and any wiring point has been completed by AAON and alteration should only be made at the cannot be modified without effecting the unit power connection. unit’s agency/safety certification.
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Page 40: Gas Heating
If any factory installed wiring must be Example: replaced, use a minimum 105°C type AWM A total of 8 wires must be pulled 75ft to a insulated conductors. control the unit. What size wire should be used? Thermostat Control Wiring If a thermostat is used for unit control, According to the Table 7, 16 AWG allows for thermostat should be located on an inside... -
Page 41: Condensate Drain Piping
4. Do not install exhaust vent where flue Never connect condensate drain directly products can be drawn into adjacent building into a sewer line. If connection to a sewer is openings such as windows, doors, or fresh air permitted by code, drain line must terminate intakes. -
Page 42: General Venting
V3 furnaces are listed as IV heaters. Category IV furnaces operate with a positive vent pressure and vent gas temperatures typically less than 150 °F. The venting system must be gas tight and water tight. Proper installation of the vent system must also assure drainage of condensate to prevent deterioration of the vent system. -
Page 43: Open Combustion Venting
4” Size /hr) VENT TERMINATION locations where outside V3-A temperature falls below freezing, icicles may form on vent terminations V3-B due to condensate in the vent system. Locate vent termination where a V3-C falling icicle would not be a hazard. -
Page 44: Separated Combustion Venting
Table 9 - Equivalent DWV Fittings Length Separated Combustion Venting A separated combustion gas heater requires a Equivalent DWV Fittings Length two (2) pipe separated combustion vent 90° Elbow 5 ft system with separate air intake and vent. 45° Elbow 2.5 ft Combustion air is supplied from outdoors Tee 90°... -
Page 45: Gas Supply, Piping And Connections
Figure 32 - Separated Combustion Venting Minimum length before any turns in pipe is Gas Supply, Piping and Connections 12”. DANGER The vent and combustion air piping must be The gas pipe in the unit should be properly supported. Horizontal sections must checked for leaks before startup. -
Page 46: Table 10 - Natural Gas (Ft 3 /Hr) Maximum Piping Capacities
Table 10 - Natural Gas (ft /hr) Maximum Piping Capacities Specific Gravity = 0.6, Supply Pressure ≤ 0.5 psi, Pressure Drop = 0.5”wc Length of Pipe Pipe Size 20 ft 50 ft. 100 ft. 150 ft. 200 ft. 1/2” 3/4” 1”... -
Page 47: Piping Sizing Examples
1/2” to 3/4” Every 6 ft manifold pressure of 3.5”wc for natural gas, 3/4” to 1” Every 8 ft or 10.5”wc for propane V3-A & V3-B 1-3/4” or Larger (10.0”wc on size V3-C). Every 10 ft (Horizontal) 1-1/4” or Larger... -
Page 48: Additional Gas Piping Considerations
Additional Gas Piping Considerations Building Code, and any applicable local and Local codes will usually require a field regional codes and regulations. provided and installed manual main shutoff valve and union external to the unit. Main The heat exchanger condensate drain connection from the unit is a 3/4”... - Page 49 WARNING CAUTION Those sensitive to odors or gases Some soaps used for leak detection from trace amounts of residual oils can be corrosive to certain metals. should NOT be present in the Rinse piping thoroughly after leak test conditioned space during the startup has been completed.
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Page 50: Startup
Supply Fans Startup V3 Series units are equipped with direct drive (See back of the manual for startup form) backward curved plenum supply assemblies that deliver the air volume WARNING specified according to unit size and job requirements. Improper installation, adjustment, alteration, service or maintenance can Fan Air Flow Adjustment... -
Page 51: Adjusting Refrigerant Charge
To check fan output from the factory, the potentiometer can be dialed to 100%. By sending a 5V signal*, for instance, the rpm can be measured and this reading can be converted to cubic feet of air moved by the fan. -
Page 52: Table 15 - Acceptable Refrigeration Circuit Values
Before Charging Subtract the measured liquid line temperature Unit being charged must be at or near full from the saturated temperature to determine load conditions before adjusting the charge. the liquid sub-cooling. Units equipped with hot gas reheat must be Compare calculated sub-cooling to the table charged with the hot gas reheat valves closed below for the appropriate unit type and... - Page 53 Checking Evaporator Superheat Adjusting Sub-Cooling Superheat Measure the temperature of the suction line Temperatures close to the compressor. The system is overcharged if the sub-cooling temperature is too high and the evaporator is Read gauge pressure at the suction line close fully loaded (low loads on the evaporator to the compressor.
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Page 54: Table 16 - R-410A Refrigerant Temperature-Pressure Chart
3. The sensing bulb should be placed several 5. If the sensing bulb is installed on a vertical inches downstream of the equalizer line. portion of the suction line, the sensing bulb should be placed upstream of suction line 4. The sensing bulb is fully insulated. trap. -
Page 55: Gas Heater
Gas Heater Figure 37 - Gas Heater Instructions... -
Page 56: Figure 38 - Gas Control Switch
Natural Gas, and 10.5”wc on Propane 8. Wait 5 minutes for any gas to clear out. If Gas V3-A & V3-B (10.0”wc for V3-C). you smell gas, turn off gas supply at the manual shut-off valve (field installed). If you 21. -
Page 57: Figure 39 - Natural Gas Flame
2. If ignition does not occur on the first trial, the gas and spark are shut-off by the ignition control and the control enters an inter-purge period of 45 seconds, during which the draft inducer continues to run. 3. At the end of the inter-purge period, another trial for ignition will be initiated. -
Page 58: Operation
Chilled Water or Non-Compressorized Operation DX Cooling Operation Unit operations should be controlled with Valve controls for chilled water cooling coil thermostat or unit controller, never at the and non-compressorized DX coil are by main power supply, except for emergency or others. -
Page 59: Gas Heater Operating And Safety Instructions
Table 17 - Gas Heat Ignition Times WARNING Time Pre-Purge 5 sec Do not store or use gasoline or other Inter-Purge 45 sec flammable vapors and liquids in the Post Purge 5 sec vicinity of this or any other appliance. Ignition Trial 10 sec Blower On Delay... -
Page 60: Table 18 - Ignition Control Sequence Of Operation
Table 18 - Ignition Control Sequence of Operation Event Action Fault Flashes “4” if limit is Control verifies limit switches are closed open Heat call – 24V at W Control verifies the pressure switch is Soft lock-out and flashes “3” if switch is closed open Flashes “2”... -
Page 61: Figure 42 - Ignition Control Module
Ignition Control Module The integrated direct spark ignition control provides control of all furnace functions including control of the induced draft fan, gas valve, pre-purge timing, ignition, flame sensing and monitoring of the safety circuit at all times, and post purge at the completion of a heating cycle. -
Page 62: Table 19 - Gas Heater Led Diagnostics
High Limit Switch Two high limit switches are provided on all The other limit control is mounted on the furnace configurations. induced draft fan housing and will shut-off the gas supply in the event of excessive flue One limit control is mounted in the air stream gas temperatures. -
Page 63: Maintenance
Table 20 - Gas Heater Troubleshooting Guide Symptom Possible Causes Control does not power up A. Faulty 24VAC or 120VAC wiring B. Thermostat or transformer C. Bad control module Module LED blinks red A. Determine error code and refer to error codes in Table 19 Spark no occurring during trial for ignition A. -
Page 64: Gas Heating
Cleaning should only be done by a qualified service agency and only after The combustion ventilation motor should consultation with AAON service operate. The control will automatically representative. supply energy to the igniter and the gas valve after the heating call is made. -
Page 65: Furnace Maintenance
Furnace Maintenance Condensate Drainage System Inspection 1. Inspect condensate drain lines to be sure they are free of debris and free flowing. WARNING 2. Inspect all condensate lines for freezing Improper installation, adjustment, and verify operation of freeze protection alteration, service or maintenance can (heat trace tape). - Page 66 Furnace Inspection Furnace Operation Check Turn off all electrical power to the unit 1. Turn on power to the unit and set before inspection and servicing. thermostat or heat controller to call for heat, allowing furnace to operate. 1. The furnace should be inspected annually by a qualified service agency.
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Page 67: E-Coated Coil Cleaning
Step one is to clean the coil with the below E-Coated Coil Cleaning Documented quarterly cleaning of e-coated approved coil cleaner (see approved products list under the "Recommended Coil Cleaners” coils is required to maintain coating warranty coverage. section. Step two is to use the approved salt/chloride remover under the "Recommended Chloride WARNING Remover”... - Page 68 For routine quarterly cleaning, first clean the 5. If the coils have heavy dirt, fibers, coil with below approved coil grass, leaves etc. on the interior or cleaner. After cleaning the coils with the exterior face areas, a vacuum and approved cleaning agent, use the approved brush should be used to remove those chloride remover to remove soluble salts and...
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Page 69: Winterizing Coils
be taken in those areas to ensure a Winterizing Coils proper rinse has been completed. In some cases it may be necessary to Warranty Protection – Step 2 winterize water coils to prevent them from Complete the coil chloride (salt) removal freezing. -
Page 70: Phase And Brownout Protection Module
Phase and Brownout Protection Module DPM Setup Procedure With the supply voltage active to the module, you can setup all of the DPM’s settings without the line voltage connected. To change the setpoint parameters use the right arrow key to advance forward through the setpoint parameters and the left arrow to backup if needed. - Page 71 Screens Manufacturer’s Screen R-K Electronics DPM v0.0.00 Average Voltage Screen VAvg Default – the default screen shows the real time voltage detected in each of the 3 phases: A-B B-C C-A Voltage Selection Screen (Vertical Format) Default = 460V, 3Ø 200, 1Ø;...
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Page 72: Filter Replacement
Replace filters with the size indicated on each filter. Arrow on the replacement filters must point towards the blower. Replacement Parts Parts for AAON equipment may be obtained from your local representative https://www.aaon.com/RepSearch. -
Page 73: Filter Information
Filter Information Table 21 - V3 Series E Cabinet Pre-Filters Feature 6A (Quantity) Size Type No Pre Filters (6) 18” x 24” x 2" Pleated, 30% Eff, MERV 10 Pleated, 30% Eff, MERV 10 (6) 18” x 24” x 4" Pleated, 65% Eff, MERV 11 Pleated, 85% Eff, MERV 13 Pleated, 95% Eff, MERV 14... -
Page 74: Table 22 - V3 Series A Cabinet Unit Filters
Table 22 - V3 Series A Cabinet Unit Filters Feature 6B (Quantity) Size Type No Pre Filters (1) 16” x 25” x 2” Pleated, 30% Eff, MERV 10 Pleated, 30% Eff, MERV 10 Pleated, 65% Eff, MERV 11 (1) 16” x 25” x 4” Pleated, 85% Eff, MERV 13 Pleated, 95% Eff, MERV 14 Pleated, 30% Eff, MERV 10 and... -
Page 75: Table 24 - V3 Series C Cabinet Unit Filters
Table 24 - V3 Series C Cabinet Unit Filters Feature 6B (Quantity) Size Type No Pre Filters (4) 16” x 20” x 2” Pleated, 30% Eff, MERV 10 Pleated, 30% Eff, MERV 10 Pleated, 65% Eff, MERV 11 (4) 16” x 20” x 4” Pleated, 85% Eff, MERV 13 Pleated, 95% Eff, MERV 14 Pleated, 30% Eff, MERV 10 and... -
Page 76: Refrigerant Piping Diagrams
Refrigerant Piping Diagrams See the matching Condensing Unit IOM for Piping Diagrams... -
Page 77: V3 Series Startup Form
V3 Series Startup Form Job Name:_____________________________________________ Date:____________ Address:____________________________________________________________________ ____________________________________________________________________________ Model Number:_______________________________________________________________ Serial Number:___________________________________________ Tag:______________ Startup Contractor:____________________________________________________________ Address:____________________________________________________________________ ______________________________________________________ Phone:_____________ Pre Startup Checklist Installing contractor should verify the following items. 1. Is there any visible shipping damage? 2. Is the unit level? 3. - Page 78 Ambient Temperature Ambient Dry Bulb Temperature ________°F Ambient Wet Bulb Temperature ________°F Supply Fan Assembly Alignment Check Rotation Nameplate Amps________ Number VFD Frequency________________ VAV Controls_________________ Power Exhaust Fan Assembly Alignment Check Rotation Nameplate Amps________ Number VFD Frequency________________ VAV Controls_________________ Energy Recovery Wheel Assembly Wheels Spin Freely Check Rotation FLA ________...
- Page 79 Refrigeration System 1 - Cooling Mode Saturated Line Pressure Sub-cooling Superheat Temperature Temperature Discharge Suction Liquid Refrigeration System 2 - Cooling Mode Saturated Line Pressure Sub-cooling Superheat Temperature Temperature Discharge Suction Liquid Refrigeration System 3 - Cooling Mode Saturated Line Pressure Sub-cooling Superheat...
- Page 80 Air-Cooled Condenser Fans Alignment Check Rotation Nameplate Amps________ Number Refrigeration System 1 - Heating Mode (Heat Pump Only) Saturated Line Pressure Sub-cooling Superheat Temperature Temperature Discharge Suction Liquid Refrigeration System 2 - Heating Mode (Heat Pump Only) Saturated Line Pressure Sub-cooling Superheat Temperature...
- Page 81 Water/Glycol System 1. Has the entire system been flushed and pressure checked? 2. Has the entire system been filled with fluid? 3. Has air been bled from the heat exchangers and piping? 4. Is the glycol the proper type and concentration (N/A if water)? 5.
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Page 82: Maintenance Log
This log must be kept with the unit. It is the responsibility of the owner and/or maintenance/service contractor to document any service, repair or adjustments. AAON Service and Warranty Departments are available to advise and provide phone help for proper operation and replacement parts. -
Page 83: Literature Change History
Literature Change History July 2018 Initial Version – See Obsolete H3/V3 IOM (J00188) for obsolete features not found in this version. H3 Series and V3 Series each have their own IOM due to the different gas heaters. - Page 84 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 product improvement, AAON reserves the right to change pricing, specifications, and/or design of its product without notice, obligation, or liability.
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