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Installation & Operation Manual
Vertical Wall-Mount Heat Pumps
Single Stage Models:
EAH1020H • EAH1024H • EAH1030H
EAH1036H • EAH1042H • EAH1048H
2-Stage Models:
EAH2024H • EAH2030H • EAH2036H
EAH2042 •EAH2048H • EAH2060H
This manual may include information for options and features which may not be
included on the unit being installed. Refer to the unit data label or Model Identification
to determine which features and options this unit is equipped with.
INSTALLER: Affix the instructions on the inside of the building adjacent to the thermostat.
END USER: Retain this manual for future reference.
P.O. Box 400 • Cordele, Georgia 31010 • 156 Seedling Drive • Cordele, Georgia 31015
E-mail: eubanksales@airxcs.com • Internet: www.EubankWallMount.com
The most current version of this manual can be found at www.EubankWallMount.com.
EAH1060H
IMPORTANT
Manufactured By:
Eubank, An AirX Climate Solutions Brand
(229) 273-3636 • Fax (229) 273-5154
Heat Pump Product Manual
Vertical Wall-Mount Heat Pumps
Eubank EAH Wall Mount HP Installation & Operation Manual
02/2025 Rev.2
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Table of Contents
Troubleshooting
Related Manuals for ACS Eubank EAH1020H
Summary of Contents for ACS Eubank EAH1020H
- Page 1 Heat Pump Product Manual Vertical Wall-Mount Heat Pumps Installation & Operation Manual Vertical Wall-Mount Heat Pumps Single Stage Models: EAH1020H • EAH1024H • EAH1030H EAH1036H • EAH1042H • EAH1048H EAH1060H 2-Stage Models: EAH2024H • EAH2030H • EAH2036H EAH2042 •EAH2048H • EAH2060H IMPORTANT This manual may include information for options and features which may not be included on the unit being installed.
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Page 2: How To Use This Manual
How To Use This Manual This manual is intended to be a guide to the Eubank Wall Mount family of vertical heat pumps. It contains installation, troubleshooting, maintenance, warranty, and application information. The information contained in this manual is to be used by the installer as a guide only. -
Page 3: Table Of Contents
DANGER Failure to comply will result in death or severe personal injury and/or property damage. Failure to comply could result in death or severe personal injury and/or property dam- WARNING age. CAUTION Failure to comply could result in minor personal injury and/or property damage. Used to point out helpful suggestions that will result in improved installation, reliability IMPORTANT or operation. - Page 4 Chapter 4 - Start-Up 4.1 Check-Out of Cooling Cycle ........................ 38 4.2 Check-Out of Heating Cycle ......................... 39 4.3 Discharge Air Adjustment for Modulating Hot Gas Reheat (HGR) Valve ........... 39 4.4 Ventilation System Set Up ........................41 Chapter 5 - Troubleshooting 5.1 Overview ...............................
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Page 5: General Description
ables Table 1 CFM @ External Static Pressure ....................7 Table 2 Ship Weight ..........................7 Table 3 Filter Sizes ..........................7 Table 4 Ambient Temperature Operating Ranges .................. 7 Table 5 Room Size Limitations ......................7 Table 6 Altitude Correction Factor ......................8 Table 7 Minimum Clearances ...................... -
Page 6: Serial Number Date Code
1.2 Serial Number Date Code 20 = 2020 01 = January 05 = May 09 = September 21 = 2021 02 = February 06 = June 10= October 22 = 2022 03= March 07 = July 11 = November 23 = 2023 04 = April 08 = August 12 = December... -
Page 7: Air Flow, Weights, Filter Sizes, Refrigerant Charges And Ambient Operating Ranges
1.4 Air Flow, Weights, Filter Sizes, Refrigerant Charges and Ambient Operating Ranges External Static Pressure (WET COIL) Model Number 0.10 0.20 0.25 0.30 0.40 0.50 EAH1020H/1024H/2024H EAH1030H/2030H 1152 1122 1100 1075 1028 EAH1036H/2036H 1265 1222 1200 1175 1133 EAH1042H/2042H 1650 1585 1520 1450... -
Page 8: General Operation
Altitude (Meters) Altitude (Feet) Correction Factor 1310 1970 2620 1000 3280 1200 3940 1400 4590 1600 5250 1800 5910 2000 6560 2200 7220 2400 7870 2600 8530 2800 9190 3000 9840 3200 10500 3400 11150 3600 11810 3800 12470 4000 13120 4200 13780... -
Page 9: Ventilation Options
Ventilation Options ASHRAE standard 62 requires 15 cfm of outside air per occupant of a classroom. To meet this requirement, Eubank offers seven ventilation packages for every budget and requirement. Configuration “C”: Up to 100% Modulating Economizer The economizer reduces the cost of air conditioning by using outside air when acceptable to cool the room (Free Cooling). - Page 10 and the indoor blower operates. A 24VAC signal {sourced from LVTB 24VAC “R” and supplied through a user-provided Normally Open (NO) contact} activates (opens) the Motorized Damper and connected Relief Damper. When the 24VAC signal is removed, the motorized damper spring returns to the fully closed position and the indoor blower stops operation.
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Page 11: Options
coil allows the indoor humidity of the classroom to be maintained at or below a certain set humidity set point without over cooling the classroom. These units can not add humidity to the classroom. The operation of the HGR coil is controlled by a humidity controller. If the humidity rises above the set point on the controller and the temperature in the classroom is satisfied, both mechanical cooling and the HGR coil operate to temper the air and lower the humidity. - Page 12 Cabinet Color Eubank heat pumps are available in six different cabinet colors. The standard colors are Eubank® beige, white, gray and Carlsbad Canyon (brown). The standard cabinet’s sides, top and front panels are constructed of 20 gauge painted steel. Contact your Eubank representative for color chips. Custom colors are also available;...
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Page 13: Chapter 2 Electronic Control Board
Chapter 2 Electronic Control Board Introduction WARNING Failure to observe the instructions contained in this document may result in personal injury and/or property damage and may void the warranty. Read this manual before installing, replacing or using this product. Eubank’s proprietary Printed Circuit Board (PCB) sets the standard for the industry in flexibility, reliability and performance. -
Page 14: Installation And Replacement
I/O Table for Control Board Item Description Economizer Actuator Output 2-10 VDC Outdoor Motor Control Output 0-10 VDC or PWM Indoor Motor Control Output 0-10 VDC or PWM Enthalpy Sensor Signal Input 4-20mA Outdoor Sensor Signal 10K NTC (Heat Pumps) / Dry Bulb Sensor Signal Input 10K NTC (Systems Equipped with Dry Bulb Economizer) Supply Air Sensor Signal Input 10K NTC (Systems Equipped with Economizer) Defrost Sensor Signal Input 10k NTC (Heat Pumps Only) - Page 15 2.3.1 – Programming Menu Configuration 1. To Enter Programming Mode: • Press and hold the Menu button for 5 seconds until P-01 is displayed. 2. While in Programming Mode main menu: • Press the Menu button to enter the displayed parameter menu. •...
- Page 16 Configuration Menu Details 1. System Type: This setting allows the PCB to be configured for AC (air-conditioner) or HP (heat- pump). The system type is configured at the factory during production testing for the appropriate system type. The default system type is AC. 2.
- Page 17 not be allowed to operate with the compressor in the heat-pump mode. When set to Y (yes) and upon a request for W2 (auxiliary / emergency heat) the compressor will shut off and the electric heat will operate. Note: SCKT and EHDD cannot both be set to the Y (yes) selection at the same time. SCKT takes priority over EHDD.
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Page 18: Operation
20. Dehum Supply Set: This setting allows the target setpoint for the supply air temperature during dehumidification operation. The setpoint range is adjustable from 70F to 75F with a fixed differential of 5F. The default setpoint is 72F 21. DS calibration: This setting is used to calibrate the defrost sensor from 0 to -18F. 22. -
Page 19: Sequence Of Operation
Sequence of Operation IMPORTANT All equipment should go through the recommended commissioning/start up sequence 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 system. It will cover the following operations and protections. - Page 20 8.0 Smoke / Fire Shutdown 8.1 System Shutdown Contact Wiring Note: Equipment, devices and necessary system components are specified in the respective section. Note: 1. All inputs on the control board go through a 5 seconds Time-On Delay to prevent nuisance request. Compressor Outputs go through 5 seconds staggered Time On delay to prevent nuisance tripping of breaker due to the inrush associated with these large inductive loads.
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Page 21: Cooling Operation
2.0 Cooling Operation AC Systems Request Active Input Active Output Stage 1 Cooling (Fixed Compressor) CC1 (Partial Capacity) Stage 1 Cooling (2 Fixed Compres-sors) Y1 or Y2 CC1 or CC2 Respectively (Partial Capacity) Stage 1 Cooling (1 Staged Compressor) CC1 (Partial Capacity) Stage 2 Cooling (2 Fixed Compres-sors) Y1 + Y2 CC1 + CC2 (Full Capacity) - Page 22 Note: The system type must be configured for “HP” operation in setting 1 of the configuration menu of the control board for proper HP system operation. This system type is selected at the factory and there’s no need to change this setting. 2.2.1 Y1+ O Cooling (Partial Capacity 1st Stage) –...
- Page 23 menu setting 12. The sensor type must be selected in setting 13 for EN=Enthalpy. The desired changeover setpoint must be selected in setting 14 (default D=63F@50% rh). Example of Enthalpy Sensor and Enthalpy curve is shown below. Note: Selecting N=No in configuration setting 12 will disable economizer operation. DANGER Sever hazard.
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Page 24: Heating Operation
3.2 Dry Bulb Sensor and Operation – The dry bulb sensor only responds to the dry bulb temperature of the outside air and ignores the humidity. The sensor is a 10K NTC sensor probe. The factory setting is 63°F. This setpoint can be adjusted in 1F increments from 20F to 105F in the control board configuration menu setting 14. - Page 25 prior to energizing the Heater Output. The Indoor Motor will operate at the “W2” speed setting on the board or via Modbus. Once the Heater output is energized, the Heater comes on at full capacity (no staging). The Heater will remain on until the Heating setpoint is satisfied and the request is dropped.
- Page 26 Modbus), the system will run the Indoor Motor for 10 seconds prior to energizing the Heater Output. The Indoor Motor will operate at the “W2” speed setting on the board or via Modbus. Once the Heater output is energized, the Heater comes on at full capacity (no staging). The Heater will remain on until the Heating setpoint is satisfied and the request is dropped.
- Page 27 continuously but the outdoor fan modulates based on liquid line temperature. The Fan Cycle Control Sensor (Low Ambient Control Sensor) monitors the liquid line to maintain a 90F liquid line temperature. When the liquid line temperature is below 80F the outdoor fan will shut off. A liquid line temperature above 115F will force the outdoor fan to operate at the maximum speed set on the control board for setting 7 in the configuration menu.
- Page 28 WITHOUT locking out. Once the pressure normalizes (drops below 450 PSI), the system will resume operation if the cooling or heat pump heating call still exist. If this fault occurs a second time on the same Cooling or Heat pump heating request, the system locks out. Lockouts can be monitored using the control board display for the current fault.
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Page 29: Additional Features
and reset temperature has been met the compressor is allowed to operate in normal operation. Note: A freeze fault does not initiate and hard lockout condition. A freeze fault only interrupts the compressor cooling operation temporarily. The freeze sensor input is ignored if the sensor is not connected to the control board input. - Page 30 the display of the control board will show “03” as an indicator of brownout (low voltage). When the voltage rises back to 17 VAC, the control board will allow the system to operate. Note: The nominal power supply for the control board is 24VAC and this voltage should be confirmed during startup to assure normal operation.
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Page 31: Chapter 3 Installation
Chapter 3 Installation WARNING Failure to observe and follow Warnings and Cautions and these Instructions could result in death, bodily injury or property damage. Read this manual and follow its instructions and adhere to all Cautions and Warnings in the manual and on the Eubank unit. 3.1 Equipment Inspection Concealed Damage Inspect all cartons and packages upon receipt for damage in transit. -
Page 32: Installation Requirements
3.3 Installation Requirements You must consider all of the following when choosing the installation site: 1. Noise. Install the unit so that the least amount of noise will be transmitted to inhabited spaces. 2. Condensate Drainage. Condensate produced during operation must be discharged to a suitable drain. 3. -
Page 33: Installation Materials
Electrical Rating Designations* Nominal Voltage 208/230 208/230 Phase Minimum Voltage Maximum Voltage * Letters refer to model number code designations. Refer to page 5. Table 8 - Voltage Limitations 3.4 Installation Materials Installation Kits Eubank EAH Heat Pumps have built-in mounting flanges that function as side brackets. All models require and are shipped with a bottom mounting bracket. -
Page 34: Porting And Duct Work
Grilles: Description Size Eubank P/N For the EAH1020H/1024H & EAH2024H Double Deflection, Aluminum Supply Grille 20” x 8“ (509mm x 203mm) 80674 Aluminum Return Grille 20” x 12” (509mm x 305mm) 80677 Return Filter Grille 20” x 12” (509mm x 305mm) 80671 For the EAH1030H/1036H &... -
Page 35: Fresh Air Hood Adjustment
General Information Note: The following instructions are for general guidance only. Due to the wide variety of installation possibilities, specific instructions will not be given. When in doubt, follow standard and accepted installation practices, or contact Eubank for additional assistance. ®... -
Page 36: Bracket Installation
Figure 4 - Fresh Air Hood Damper Adjustment 3.7 Bottom Bracket Installation 1. Remove and discard the 4 x 4 shipping boards attached to the base of the unit. 2. All heat pump models have built-in mounting flanges. See Figure 6. 3. -
Page 37: Mounting The Unit
3.8 Mounting the Unit 1. For wiring into the back of unit, locate the lower of the two knock-outs on the wall side of the Heat Pump. Drill a one inch hole in the building wall to match this opening. Allow sufficient clearance to run 3/4"... -
Page 38: High Voltage Wiring
High Voltage Wiring The power supply should have the proper voltage, phase, and ampacity for the selected model. 1. Refer to the electrical data on the data sticker on the unit for field wiring requirements of the unit. Size the incoming power supply lines and the fuse(s) or HACR breaker(s) according to requirements described in the National Electric Code. -
Page 39: Figure 6A Humidity Control Wiring Detail
3. If applicable, attach the thermostat assembly to the sub-base. Check the stage two heat anticipator setting. For units with electric heat and thermostats with an adjustable heat anticipator, energize the electric heat and measure the current on the lead attached to the W2 terminal. Adjust/set the heat anticipator per the instructions provided with the thermostat. -
Page 40: Chapter 4 Startup
Chapter 4 Startup IMPORTANT If the heat pump unit has a crankcase heater be sure that the crankcase heater has been energized for at least 24 hours prior to start-up of the unit. Double check all electrical connections before applying power. Various thermostats can be used to control the heat pump. -
Page 41: Check-Out Of Heating Cycle
Note: To check the system operation under different ambient conditions, the air temperature and enthalpy sensors must be "tricked". When outdoor ambient conditions are higher than the control setting, a component aerosol cooler may be sprayed directly into the enthalpy sensor to simulate low enthalpy conditions, causing the economizer damper to open. -
Page 42: Ventilation System Set Up
Wires from temperature sensor mounted in supply air. Figure 7 - Temperature Sensor Wires 2. Turn the unit on and the Hot Gas Reheat is operating. 3. Set the digital VOM for DC milliamp voltage. The milliamp voltage shown on the meter’s display corresponds to the desired air temperature (ºF). - Page 43 is located on the lower right side of the GreenWheel ERV assembly. Access to the speed controller is through the return air grille. Measure the intake air again and adjust the speed of the blowers. Repeat as necessary to meet the fresh air requirements. b.
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Page 44: Chapter 5 Troubleshooting
Chapter 5 Troubleshooting 5.1 Overview A comprehensive understanding of the operation of the Eubank Heat Pump is a prerequisite to ® troubleshooting. Please read the Chapter 1 for basic information about the unit. Eubank Heat Pumps are thoroughly tested before they are shipped from the factory. However, it is possible that a defect may escape undetected, or damage may have occurred during transportation. -
Page 45: Failure Symptoms Guide
5.2 Failure Symptoms Guide PROBLEM/SYMPTOM LIKELY CAUSE(S) CORRECTION A. Unit does not run. 1. Power supply problem. 1. Check power supply for adequate phase and voltage. Check wiring to unit and external breakers or fuses. NOTE: An internal anti-short-cycle timer will prevent the unit 2. -
Page 46: Compressor Troubleshooting
PROBLEM/SYMPTOM LIKELY CAUSE(S) CORRECTION E. Water on floor near unit. 1. Obstruction in condensate line. 1. Check for clog or restriction. 2. Obstruction or leak in condensate 2. Check pan for leak or blockage. pan. 3. Unit is not level. 3. -
Page 47: Electric Heat Controls
Display Displayed Faults AS-F Supply Air Sensor Fault (Sensor Disconnected Or Faulty) If Equipped DB-F Dry Bulb / Outdoor Sensor Fault (Sensor Disconnected Or Faulty) If Equipped DS-F Defrost Sensor Fault (Sensor Disconnected Or Faulty) Heat Pumps Only ES-F Enthalpy Sensor Fault (Sensor Disconnected Or Faulty) If Equipped Emergency Fan / Ventilation Active Loss of Refrigerant / Flat Unit Fault LP-1... -
Page 48: Chapter 6 - Electrical Schematics
Chapter 6 Electrical Schematics 6.1 Electrical Schematics The compressor and condenser fan are energized with a contactor controlled by a 24 VAC pilot signal. The condenser (outside fan) motor is energized by the same contactor. However, the motor is cycled on and off by the low ambient control (see low ambient control 1.5). -
Page 49: Figure 10A Typical 1Ø Electrical Schematic Diagram Heat Pump With Manual Outside Air Damper
Figure 10a - Typical 1ø Electrical Schematic Diagram Heat Pump (Models EAH) with Manual Outside Air Damper Eubank EAH Wall Mount HP Installation & Operation Manual 02/2025 Rev.2... -
Page 50: Figure 10B Typical 208/230V. 3Ø Heat Pump Electrical Schematic Diagram
Figure 10b - Typical 208/230v. 3ø Electrical Schematic Diagram Heat Pump (Models EAH) Eubank EAH Wall Mount HP Installation & Operation Manual 02/2025 Rev.2... -
Page 51: Figure 10C Typical 460V. 3Ø Heat Pump Electrical Schematic Diagram, With Pc Control Board
Figure 10c - Typical 460v. 3ø Electrical Schematic Diagram Heat Pumps, Models EAH, with the PC Control Board Eubank EAH Wall Mount HP Installation & Operation Manual 02/2025 Rev.2... -
Page 52: Scheduled Maintenance
Chapter 7 Maintenance 7.1 Scheduled Maintenance Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be used. -
Page 53: Chapter 8 Service & Charging/Recovery
Chapter 8 Service & Charging/Recovery 8.1 Safety Precautions Service Prior to beginning work on systems containing FLAMMABLE REFRIGERANTS, safety checks are necessary to ensure that the risk of ignition is minimized. For repair to the REFRIGERATING SYSTEM, the following shall be completed prior to conducting work on the system. 1. -
Page 54: Charging Procedures
If a leak is suspected, all naked flames shall be removed/extinguished. If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be recovered from the system, or isolated (by means of shut off valves) in a part of the system remote from the leak. 8.3 Charging Procedures In addition to conventional charging procedures, the following requirements shall be followed. - Page 55 7. The outlet for the vacuum pump shall not be close to any potential ignition sources, and 8. Ventilation shall be available. 9. When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that the correct number of cylinders for holding the total system charge is available.
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Page 56: Chapter 9 Decommissioning
Chapter 9 Decommissioning 9.1 Decommissioning Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its details. It is recommended good practice that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of recovered refrigerant. -
Page 57: Chapter 10 Warranty
Chapter 10 Warranty 10.1 Marvair, Inc. Limited Product Warranty Marvair Inc., warrants its products to be free from defects in materials and workmanship under normal use to the original purchaser for the period of time in the table below. If any part of your product fails within 12 months from start-up, or 18 months from shipment from the factory, whichever comes first, Marvair, Inc. -
Page 58: Appendix A: Electronic Control Board Modbus Map
APPENDIX A: Electronic Control Board Modbus Map Default Modbus RTU Settings Slave ID Baud = 19200 Data Bits = 8 Stop Bits = 1 Parity = None First Coil 1 , No. of Coils 30 RJ11 Pinout for Communication Discrete Bit/Bool: Read with Function Code 02 multi discrete input read, Write to RW coil with Function Code 05 Single Coil write. - Page 59 Registers: Read with Function Code 04 Multi register reads, Write to RW register with Function Code 06 write single register. Attempted Writes to RO registers result in error return. Func 0x10 multiple register writes not supported. MODBUS Human OBI PACKET Register ID REGISTER ZeroBase...
- Page 60 40020 Current Status of MIN POS 16 bit 20 = MIN, 20-100= OPEN % 40021 Economizer Dry Bulb Temperature setpoint 16 bit 70F=default, 20F-105F 40022 ODS set 16 bit 50 default, 0-70 N= 0, 10-90 SECONDS, 40023 Fan Purge 16 bit 90 SEC IS DEFAULT 40024 Defrost Timer...
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Page 61: Appendix B: Installation Instructions For Field Installed Electric Heat
APPENDIX B: Installation Instructions for Field Installed Electric Heat WARNING FIRE HAZARD Improper adjustment, alteration, service, maintenance or installation could cause serious injury, death and/or property damage. Installation or repairs made by unqualified persons could result in hazards to you and others. - Page 62 WARNING ELECTRICAL SHOCK HAZARD Failure to follow safety warnings exactly could result in serious injury, death, and/or property damage. Turn off electrical power at fuse box or service panel BEFORE making any electrical connections and ensure a proper ground connection is made before connecting line voltage.
- Page 63 Eubank EAH Wall Mount HP Installation & Operation Manual 02/2025 Rev.2...
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Page 64: Appendix C: Heat Pump Start-Up - Commissioning Checklist
APPENDIX C: Heat Pump Start-Up - Commissioning Checklist Please complete the information on this form and email to MarvairCustServ@airxcs.com. Date: _____/_____/_______ Owner & Location Equipment Owner: ___________________________________________________________________ Address: __________________________________________________________________ City: __________________________________________________________________ State:_______, Zip:____________ Installing Contractor Company: _______________________________Installer: ____________________________ Address: __________________________________________________________________ City: __________________________________________________________________ State:_______, Zip:____________ Equipment Information... -
Page 65: Starting Unit
Check Incoming Power at Terminal Block and verify Proper Voltage and Balance BEFORE STARTING UNIT. ❒ 208/230V 1 Phase 60 Hz. ❒ 208/230V 3 Phase 60 Hz. ❒ 460V 3 Phase 60 Hz. ❒ 380V 3 Phase 50Hz. ❒ 575 3 Phase 60 Hz. ❒... - Page 66 Cooling Mode (Mechanical Cooling) Close the Compressor (Cooling) circuit breaker. Power will be applied to the thermostat / control device. Setup / Configure the control for the desired settings. Adjust the cooling setpoint so there is No demand for cooling. The unit will not be running. Cooling Start If using a standard thermostat, Set the Control to ON, Mode to Cooling, Fan to Auto (other controls, set appropriately for cooling mode).
- Page 67 Cooling (Check and Record Readings) After about 10 minutes of operating in the cooling mode, check and record the following data points. Inside Temperature (IAT) ºF Outside Temperature (OAT) ºF Entering Condenser Air Temperature (Should be same temp as OAT) ºF Leaving Condenser Air Temperature (Acceptable Range 15º...
- Page 68 Electric Reheat Re-Start While the system is still operating in “Cooling Mode” from the previous test. Re-Start Dehumidification. Do Not change the Humidity Setpoint on the Humidistat. Simply adjust the cooling setpoint to approximately four degrees above the current indoor temperature. After the short delay, the unit will sequence on, start dehumidification.
- Page 69 Economizer Cooling Stop Adjust the cooling setpoint to approximately two degrees above the current indoor temperature. The unit will sequence off. Is the Economizer Damper Closed? .................. ❒Yes ❒No Is the indoor blower motor (IBM) Off? ................❒Yes ❒No Heating Mode (Mechanical Heating Heat Pump) Close the Compressor (Cooling) circuit breaker.
- Page 70 Mechanical Heat Lockout ODT (Electric Heat ONLY While the system is operating in “Mechanical Heating Mode”. Activate Mechanical Heat Lockout (ODT). * Your unit may be configured with an outdoor thermostat configured as “Auxiliary Heat”, “Mechanical Heat Lockout”, or No outdoor thermostat. * Do Not change the temperature setpoint on the thermostat / control.
- Page 71 Three Phase Units Heater kW = (HCAL1*L1&L2) + (HCAL2*L1&L3) + (HCAL3*L2&L3)/1000 = __________kW. Example: (HCAL1*L1&L2) + (HCAL2*L1&L3) + (HCAL3*L2&L3) 1000 Measured Voltage: L1&L2 = 241 Volts Measured Amperage: L1 = 8.28 Amps 1995.48 Measured Voltage: L1&L3 = 243 Volts Measured Amperage: L1 = 8.22 Amps 1997.46 Measured Voltage: L1&L2 = 235 Volts Measured Amperage: L1 = 8.57 Amps...
- Page 72 Notes: ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ Eubank EAH Wall Mount HP Installation & Operation Manual 02/2025 Rev.2...
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