Aaon HB-005 Manuel d'utilisateur

104. Delivery ALL SHIPMENTS ARE F.O.B. THE FACTORY. IT IS THE RESPONSIBILITY OF THE RECEIVING PARTY TO INSPECT THE EQUIPMENT UPON ARRIVAL. Recei

11warranty. Attach all service panels, and cover all exposed equipment when work is not being performed. Leave unit protected from other constructi

12Service & Installation Clearances Before setting the unit into place, caution must be taken to provide clearance for unit panels/doors that m

13Setting the Unit Units should always be installed level, and above water drainage routes. Unit operation can be affected by wind. It is good pra

14 Electrical Check the unit data plate to make sure it matches the power supply. Connect power

15 Figure 15a, Power and Control Wiring Utility E

16Each HB has a standard Cooling Lock-out feature that prevents the compressor cooling mode when the outdoor temperature is below 55°F. Each unit a

172 Step Compressor Cooling Models − The HB models with a 2 step cooling compressor may use a 2 step cooling thermostat with the R, G, Y1, Y2 &

18 Figure 18a, External Control Inputs to Con

19Modulating Hot Gas Reheat The modulating hot gas reheat option is used to provide additional moisture removal capacity to the HB unit. Hot refrig

2 1. Description ………………………………... 3 Thermostat Important Safety Information Economizer Option Package Unit Orientation

20 Figure 20a, Reheated Supply Air Temperature

21Gas Piping Size gas piping to supply the unit with 6” to 10.5” water column (w.g.) pressure for natural gas, or 11” w.g. for propane (when a natur

22 Run piping through

23Condensate Piping HB package units are equipped with a condensate drain connection, and ‘P’ traps are furnished with the equipment. The drain con

24excessive sound, or vibration. Follow procedures outlined below to start each piece of equipment. Before powering on, or starting the unit: 1.

25Electric Heating: 1. Turn the unit power on. 2. Turn the unit blower on, and check for correct rotation. 3. If correct, take blower amp reading

267. Operation & Maintenance General Immediately following building occupancy, the air conditioning system requires a maintenance schedule to

27Heating Sequence On a call for heating, the supply fan will go to high speed, and the first stage of heating will be energized. The unit will go

288. Hot Gas Bypass The purpose of external hot gas bypass (HGBP) is to prevent coil freeze-up and compressor damage from liquid slugging during p

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31. Description Important Safety Information ONLY QUALIFIED PERSONNEL SHOULD PERFORM INSTALLATION, OPERATION, AND MAINTENANCE OF EQUIPMENT DESCRIB

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31Pressure – Temperature Chart R-410A (° F) PSIG (° F)PSIG (° F)PSIG (° F)PSIG (° F)PSIG 20 78.3 50 142.2 80 234.9 110 364.1 140 540.1 21 80

32 AAON, Inc. 2425 S. Yukon Tulsa, Oklahoma 74107 Tel 918-583-2266 Fax 918-583-6094 Downloa

4 Package Unit Orientation (Compressorized)Service access is

5 Air Handling Unit Orientation (Non-Compressorized)Service access i

62. Model Number Description Main Features No Heat Ele

73. User’s Information DX (Direct Expansion) Package Units and DX Units with Remote Condenser Never cut off the main power supply to the unit

8Multiple Unit Operation When several units are used in conditioning the space, and any are combination heating-cooling units, all system thermosta

9Modulating Hot Gas Reheat and Hot Gas Bypass Systems on DX Units Some DX cooling units may contain Modulating Hot Gas Reheat (MHGRH) and/or Hot Gas