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Eubank EAA/EGA Wall Mount AC Installation & Operation Manual

03/2021 Rev.4

Figure 1c. Typical Electrical Schematic - (Economizer) Model EAA (Alternate Construction)

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Содержание Eubank EAA1020A

Страница 1: ...he inside of the building adjacent to the thermostat END USER Retain this manual for future reference Eubank EAA EGA Wall Mount AC Installation Operation Manual 03 2021 Rev 4 Part 03842 Air Conditione...

Страница 2: ...IGHT Laying it down on its side may cause oil to leave the compressor and breakage or damage to other components 3 TURN ELECTRICAL POWER OFF AT THE breaker or fuse box BEFORE installing or working on...

Страница 3: ...ns on the inside of the building adjacent to the thermostat END USER Retain these instructions for future reference Table of Contents Chapter 1 Eubank Wall Mount Air Conditioner Description Specificat...

Страница 4: ...halpy Sensor Temperature Control Points 19 Figure 4 Electrical Controls HVESAAlternate Construction 19 Figure 5 Economizer Control Board 20 Figure 6a Setting the Speed for the Y1 and Y2 Operation for...

Страница 5: ...A for instructions on field installation of electric heat Eubank air conditioners feature an exclusive electronic control board The control board consolidates several of the electrical components and...

Страница 6: ...bient Fan Cycle Control FCC R Crank Case Heater CCH T Hard Start w EFS U Hard Start w Hot Gas Bypass V Hard Start w Low Ambient CCH EFS W Low Ambient w CCH X Hot Gas Bypass Y Low Ambient w CCH FCC Z L...

Страница 7: ...Wet Coil IWG MODEL INCHES MILLIMETERS PART NUMBER FILTERS PER UNIT MERV RATING EAA1020 1024 30 x 16 x 2 762 x 406 x 52 80138 1 8 EAA1030 1036 1042 36 x 22 x 2 927 x 559 x 52 80162 1 8 EAA1048 1060 18...

Страница 8: ...r air damper is proportionally open and return air damper is proportionally closed to maintain between 50 F and 56 F 10 C to 13 C at the mixed discharge air sensor Integral pressure relief allows the...

Страница 9: ...ained at or below a certain humidity set point These units do not have the ability to add humidity to the building IMPORTANT The electrical wire and breaker or fuses must be sized for simultaneous ope...

Страница 10: ...perate in extremely cold temperatures The kit includes a suction line accumulator thermal expansion valve TXV crankcase heater hard start kit and an outdoor thermostat and fan cycle switch The fan cyc...

Страница 11: ...long as primary power is available The heater drives liquid refrigerant from the crankcase and prevents loss of lubrication caused by oil dilution Power must be applied to the unit for 24 hours before...

Страница 12: ...12 Eubank EAA EGA Wall Mount AC Installation Operation Manual 03 2021 Rev 4 Figure 1a Typical Electrical Schematic Non Economizer Model EAA...

Страница 13: ...Eubank EAA EGA Wall Mount AC Installation Operation Manual 03 2021 Rev 4 13 Figure 1b Typical Electrical Schematic Economizer Model EAA...

Страница 14: ...14 Eubank EAA EGA Wall Mount AC Installation Operation Manual 03 2021 Rev 4 Figure 1c Typical Electrical Schematic Economizer Model EAA Alternate Construction...

Страница 15: ...Eubank EAA EGA Wall Mount AC Installation Operation Manual 03 2021 Rev 4 15 Figure 1d Typical Electrical Schematic Economizer Model EAA Alternate Construction...

Страница 16: ...16 Eubank EAA EGA Wall Mount AC Installation Operation Manual 03 2021 Rev 4 Figure 1e Typical Electrical Schematic Economizer Model EGA Alternate Construction...

Страница 17: ...the changeover to outside air for free cooling The control board must be configured for proper operation of the economizer by selecting the desired changeover temperature The desired temperature is s...

Страница 18: ...per Minimum Position Potentiometer W2 jumper The potentiometer controls the amount of outside air introduced in the building when the economizer damper closes or the air conditioner is Off or in Mecha...

Страница 19: ...orsarecurrentlytheonlybrandofsensorsusedintheairconditioners Jumper W3 allows us to use alternative brands at a future date On all current air conditioners pins 1 2 are jumpered on W3 See item 4 in Fi...

Страница 20: ...osition Potentiometer 0 to 100 Factory setting is 50 2 Field connection from CommStat 4 2 terminal 5 For Honeywell sensors 8 W2 Minimum Position Potentiometer Jumper Jumper Pins 1 2 to Disable Factory...

Страница 21: ...ng valuable information to the end user Special features include 2 Stage operation with varying speed control to optimize latent and sensible capacity built in remote communication MODBUS for monitori...

Страница 22: ...gh Pressure Switch LP Low Pressure Switch Switch to Be Closed for Cooling Operation Switch to Be Connected to R Node 16 24 VAC Power Input to PCB 17 Digital Outputs 24 VAC The PCB Makes and Breaks R R...

Страница 23: ...propriate signal terminations must be used This jumper will be factory installed In replacing the PCB verify the necessary signal and configure the board accordingly Only 2 of the 3 pins should be use...

Страница 24: ...the potentiometer See figure below 3 1 2 1 Set for 0 10V Signal Jumper To Remain On The Appropriate Terminal For Correct Operation 2 Set For PWM Signal Jumper To Remain On The Appropriate Terminal For...

Страница 25: ...ts per second The board also allows 15 different MODBUS addresses based on the position of the NET ADDRESS DIP switches The Net Addresses are written in Binary see table below with switch 4 being the...

Страница 26: ...dedcommissioning startupsequence to ensure safety and system reliability This document is only valid if the system is used as intended This section defines the manner and method of control of the HVAC...

Страница 27: ...s as follows 1 Stage 2 Cooling Request Y2 Input 2 Stage 1 Cooling Request Y1 Input 3 Electric Heat Request W2 Input 4 Dehumidification Request Hum Input 5 Indoor Fan Request G Input Note The priority...

Страница 28: ...apacity Only CC1 output can achieve partial capacity Both CC1 and CC2 outputs are required to achieve full capacity Request Active Input Active Output Stage 1 Cooling 1 Fixed Compressor Y1 CC1 Partial...

Страница 29: ...cooling operation In the event that the fault occurs a second time on the same call for cooling the system locks out To clear the fault the Cooling request must be cycled or the system must be power...

Страница 30: ...e sensor has to be configured via MODBUS Once configuration is complete the unit has the capability to function autonomously to maintain the space temperature Discrete Registers Read with Function Cod...

Страница 31: ...Setting 16 Bit 1 60 default 25 represents minutes of allowed MODBUS inactivity before switching to onboard T Stat mode RW 10 Current OFM Speed 16 Bit 0 1023 RO 11 Current IFM Speed 16 Bit 0 1023 RO 12...

Страница 32: ...pressor will not start makes excessive noise or will not pump return the unit to the freight carrier 3 2 Installation Requirements General 1 Inspect unit for completeness Check for missing parts e g h...

Страница 33: ...cm 24 inches 61 cm 6 inches 15 cm 1030 1036 30 inches 76 cm 18 inches 46 cm 24 inches 61 cm 6 inches 15 cm 1042 1048 1060 30 inches 76 cm 30 inches 76 cm 24 inches 61 cm 6 inches 15 cm 1072 30 inches...

Страница 34: ...1 stage cool 7 day programmable Fan switch Auto On Auto change over Keypad lockout Non volatile program memory P N 50123 Digital thermostat 2 stage heat 2 stage cool 7 day programmable Fan switch Auto...

Страница 35: ...manual is intended for use by a qualified service agency that is experienced in such work is familiar with all precautions and safety procedures required in such work and is equipped with the proper...

Страница 36: ...hin 4 feet 122cm of the unit Galvanized metal duct extensions should be used to simplify connections to duct work and grilles Use fabric boots to prevent the transmission of vibration through the duct...

Страница 37: ...on the wall You must stabilize the unit on the bracket with the lifting device or by some other means the bracket alone is not sufficient 3 Make sure that the duct flanges are properly aligned with t...

Страница 38: ...ned system with small critical refrigerant charges where the installation of gauges may be objectionable can be made by monitoring the temperature of the refrigerant lines at the compressor The temper...

Страница 39: ...e the field power leads connected to the internal circuit breaker on one of the units only D Restore power and retest the phase step B When the voltage reads 0 the units are in phase E Turn off power...

Страница 40: ...mStat 3 Controller is a solid state control package designed to operate a fully or partially redundant air conditioning system for a telecommunication cabinet or shelter The CommStat 3 Controller is f...

Страница 41: ...O Dry Contacts NC C NO High Building Temp Alarm Dry Contacts NC C NO 5 Connect to Normally Closed NC dry contacts from smoke alarm SMOKE ALARM JUMPER NOTE IF LINE VOLTAGE IS BELOW 220 VAC USE THE 208...

Страница 42: ...conomizer Equipped models only To check the system operation under different ambient conditions the air temperature and enthalpy sensors must be tricked When outdoor ambient condi tions are higher tha...

Страница 43: ...art with a visual check are there loose wires crimped tubing missing parts etc Begin deeper analysis only after making this initial inspection The troubleshooting information in this manual is basic T...

Страница 44: ...or airflow restrictions e g the air filter Check blower motor and condenser fan 2 Restriction in refrigerant circuit 2 Check for blockage or restriction especially filter drier and capillary tube asse...

Страница 45: ...leakage with a megoh meter Attach one lead to the compressor case on a bare metal tube and to each compressor terminal to test the motor windings A short circuit at high voltages indicates a motor def...

Страница 46: ...as dried before restarting Condenser Periodicallyinspecttheoutdoorcondensercoilandthecabinetairreliefsfordirtorobstructions Remove foreign objects such as leaves paper etc If the condenser coil is dir...

Страница 47: ...or any other material charges 2 Damages caused by shipping accident abuse negligence misuse fire flood or Acts of God 3 Damages caused by operating or staging the unit in a corrosive environment 4 Dam...

Страница 48: ...___________________________ Compressor Model No ______________________________________________ Serial No ______________________________________________ B Pre Start Up Is there any shipping damage Yes...

Страница 49: ...Deviation from avg voltage ______________volts Voltage imbalance 100 x Max Deviation avg Voltage ___________ A voltage deviation greater than 2 with the unit running should be addressed and corrected...

Страница 50: ...r DB Temp ________ ________ Evap Leaving Air WB Temp ________ ________ Heater Contactor Amps L1 ________ ________ Heater Contactor Amps L2 ________ ________ Heater Contactor Amps L3 ________ ________...

Страница 51: ..._ Compressor Amps L3 ________ ________ Notes _________________________________________________________________________ _________________________________________________________________________ _______...

Страница 52: ...n all four sides of the supply outlet duct flange on the unit The 1 25 4 mm clearance must extend on all sides of the supply duct for the first 3 feet 1 meter from the unit IMPORTANT Eubank requires a...

Страница 53: ...r all other heaters 6 Install the two No 10 screws in the heater assembly plate 7 Install wire harness in hole provided in drain pan and then through filter bracket and then into control box 8 Wire th...

Страница 54: ...54 Eubank EAA EGA Wall Mount AC Installation Operation Manual 03 2021 Rev 4...

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