Table of Contents
Advertisement
Quick Links
Installation & Operation Manual
11 EER Vertical Wall-Mount
Air Conditioners w/Gas Heat
HAA1024A-1030A-1036A-
1042A-1048A-1060A
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.
A Division of the AIRXCEL
P.O. Box 400 • Cordele, Georgia 31010 • 156 Seedling Drive • Cordele, Georgia 31015
E-mail: eubanksales@airxcel.com • Internet: www.EubankWallmount.com
The most current version of this manual can be found at www.EubankWallmount.com.
MODELS:
IMPORTANT
Manufactured By:
(229) 273-3636 • Fax (229) 273-5154
Air Conditioner Product Manual
Vertical Wall-Mount Air Conditioners
with Gas Heat & Front Control Box Panel
Commercial Group
®
Eubank HAA A/C w/Gas Heat I&O Manual 03/2021 Rev.2
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Airxcel Eubank HAA1024A
Summary of Contents for Airxcel Eubank HAA1024A
- Page 1 INSTALLER: Affix the instructions on the inside of the building adjacent to the thermostat. END USER: Retain this manual for future reference. Manufactured By: A Division of the AIRXCEL Commercial Group ® P.O. Box 400 • Cordele, Georgia 31010 • 156 Seedling Drive • Cordele, Georgia 31015 (229) 273-3636 •...
- Page 2 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 or IMPORTANT operation. SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE. © 03/2021 Airxcel Commercial Group Eubank HAA A/C w/Gas Heat I&O Manual 03/2021 Rev.2...
-
Page 3: Table Of Contents
WARNING - SAFETY REQUIREMENTS • If the information in these instructions are not followed exactly, a fire, carbon monoxide poisoning or explosion may result causing property damage, personal injury or loss of life. • Read all instructions carefully prior to beginning the installation. Do not begin installation if you do not understand any of the instructions. - Page 4 7.12 Clearances ............................55 Chapter 8 – Parts List ..........................56 Chapter 9 – Warranty Policy Airxcel Commercial Group Limited Product Warranty ...............58 Illustrations Figure 1a. Setting the Speed for the Y1 and Y2 Operation for Indoor Motor ..........12 Figure 1b. Second Stage Cooling Speed ......................12 Figure 2.
-
Page 5: Chapter 1 - Description & Specifications 1.1 General Description
Tables Table 1 MODBUS Network Address DIP Swith Positions ..............15 Table 2a. MODBUS Discrete Registers .....................19 Table 2b. MODBUS Registers ........................20 Table 3. Minimum Clearances from Unprotected Combustible Material and For Service .....24 Table 4. Electrical Rating Designations ....................25 Table 5. Minimum Clearances from Unprotected Combustible Material and For Service .....30 Table 6. -
Page 6: Model Identification
1.2 Model Identification Example Position Unit Designation/Family H = Eubank Wall Mount w/Gas Heat D = Dry Bulb Sensor Indoor Air Quality E = Dry Bulb Sensor w/Dirty Filter Energy Efficiency Ratio (EER) A = 11 G = Dirty Filter Sensor Features Refrigerant Type A = R-410a... -
Page 7: Sequence Of Operation - Heating Mode
temperature and pressure are increased. The hot refrigerant gas condenses to liquid as heat is transferred to outdoor air drawn across the condenser by the condenser fan. Liquid refrigerant is metered into the evaporator through capillary tubes to repeat the cycle. 1.5 Sequence of Operation - Heating Mode On a call for heat, two stage thermostat contact( ... -
Page 8: Ventilation Options
On-Steady Control Operation Normal 1 Flash Open Air pressure switch, limit switch or flame rollout switch 2 Flashes Pressure switch stuck closed 3 Flashes Ignition / fl ame sensor failure 4 Flashes Repeated flame loss 5 Flashes Internal control fault 6 Flashes Repeated pressure switch losses LED Flash Code Key... -
Page 9: Economizer Operation - Cooling Cycle (Unit With Economizer Only)
1.7 Economizer Operation – Cooling Cycle (Eubank HAA unit with Economizer only) The economizer is a regulated damper system with controls. The damper regulates the circulation of outside air into the enclosure ( w hen the outdoor air conditions are suitable ) to reduce the need for mechanical cooling, save energy, and extend compressor life. -
Page 10: 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. The MGA3090 is equipped with Eubank’s proprietary Printed Circuit Board (PCB), which sets the standard for the industry in flexibility, reliability and performance. -
Page 11: Installation And Replacement
Item Description Outdoor Motor Control Signal Output Indoor Motor Control Signal Output P 1/2- Pressure for Circuit 1 and Circuit 2 (Respectively) FS1 – Freeze Stat for Circuit 1 FS2 – Indoor Temperature Input Modbus Communication 3 Wire [A, B, COM] and Parallel RJ-11 Port Fan Cycle Control Input (only Applicable for EC Outdoor Motors) Hum –... -
Page 12: Figure 1A. Setting The Speed For The Y1 And Y2 Operation For Indoor Motor
Power The Eubank PCB requires 24 VAC to operate. When the board is sufficiently powered, the “PWR” status light on the PCB illuminates “Green.” If there is insufficient power to the board, the “STATUS 1” and “STATUS 2” flashes continuously. Insufficient power to the board will result in no outputs being energized. -
Page 13: Figure 2. Output Termination For Indoor Motor Control Signal
Output Termination for Indoor Motor Control Signal Note: Follow data (wiring and signal control signal type) of the appropriate motor to setup the PCB Indoor Motor PWM Signal Output. Reference Wire Connected to “GND” and the Signal Connected to “PWM” Indoor Motor 0-10V Signal Output. -
Page 14: Figure 5. Communications Setup
Communication The Eubank PCB comes equipped with MODBUS communication standard. There are 2 adjacent MOD- BUS communication ports connected in parallel. That is, both ports transmit the same information. The difference between the ports is the physical connection. One port is for RS-485 (3 wire shielded cable is recommended) and the other port is RJ-11. -
Page 15: Sequence Of Operation
Address DIP Switch 1 DIP Switch 2 DIP Switch 3 DIP Switch 4 0 [Local Control] Table 1. MODBUS Network Address DIP Swith Positions 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. - Page 16 Equipment, devices and necessary system components are specified in the respective section. Note: 1. All inputs on the Controller 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.
- Page 17 and the indoor fan remains on continuously but the outdoor fan cycles based on head pressure. The Fan Cycle Control Switch (Low Ambient Control Switch) closes at 400 PSIG to set the “FCC IN” input High which in turn outputs a speed proportional to the “OFM Speed” setting on the board or by MODBUS.
- Page 18 5.0 – Refrigeration Protection 5.1– High Pressure Lockout This condition describes the abnormal rise in Head Pressure pass the system acceptable limit of 660 PSI (+/-20PSI). The fault will only be active when the High-Pressure Switch (Normally Closed) opens during a request for Cooling. The first time this fault condition occurs, the system cuts the compressor off WITHOUT locking out.
-
Page 19: Table 2A. Modbus Discrete Registers
applicable) has to be configured via MODBUS. See MODBUS register tables at the end of this section. 5.2 – Modulating Head Pressure Control A 10K Nominal NTC Thermistor is connected to the “P1” and “P2” inputs for circuit 1 and circuit 2 respectively. -
Page 20: Table 2B. Modbus Registers
Registers: Read with Function Code 04, Write to RW or WO registers with Function Code 06 Description Size Data Format Heat Setpoint 16 Bit 45º-100º F Cool Setpoint 16 Bit 45º-100º F 0-20, 10 is default. Less Temperature Calibration 16 Bit than 10 is a negative offset, 11-20 is a positive offset 0-100, 80 is default. -
Page 21: Chapter 3 Safe Installation Requirements
Chapter 3 Safe Installation Requirements WARNING - SAFETY REQUIREMENTS Improper adjustment, alteration, service, maintenance or installation could cause serious injury, death and / o r property damage. Installation or repairs made by unqualified persons could result in hazards to you and others. Installation MUST conform with local codes or, in the absence of local codes, with codes of all governmental authorities have jurisdiction. -
Page 22: Safety Rules
Underwriters Laboratories installed and maintained in the building or dwelling ( s ee note below ) . NOTE: Airxcel Commercial Group does not test any alarms and makes no representations regarding any brand or type of alarms. - Page 23 WARNING: FROZEN AND BURST WATER PIPE HAZARD Failure to protect against the risk of freezing could result in property damage and / o r personal injury. Do not leave the structure unattended for long periods during freezing weather without turning off water supply and draining water pipes or otherwise protecting against the risk of frozen pipes and resultant damage.
-
Page 24: Chapter 4 Installation
Chapter 4 Installation WARNING CARBON MONOXIDE POISONING HAZARD Failure to properly vent this furnace or other appliances could result in death, personal injury and / o r property damage. If this furnace is replacing a previously common-vented furnace, it may be necessary to resize the existing vent system to prevent oversizing problems for the other remaining appliance( ... -
Page 25: Installation Requirements
Do NOT install this unit in an interior space. 7. The unit is not certified or suitable for use in drying or process applications. Use in such applications voids any warranty and Airxcel Commercial Group disclaims any responsibility for the duct furnace and / o r application. - Page 26 15. Eubank HAA air conditioners with gas heat may be used for heating and cooling in buildings under construction provided that ALL installation procedures described in this manual are followed including, but not limited to: a. The unit must be properly vented, b.
-
Page 27: Dimensional Data
4.3 Dimensional Data Filter Size (inches) Shipping Weight BASIC MODEL HAA1024A HAA1030A HAA1036A BASIC MODEL HAA1024A HAA1030A HAA1036A FILTER SIZE - IN 30 x 16 x 2 SHIP WEIGHT - LBS FILTER SIZE - MM 762 x 406 x 51 SHIP WEIGHT - KG FILTER PART # 80138... -
Page 28: Figure 6B. Models Haa1042A/Haa1048A Dimensional Data
10 mm 117 mm 57 mm 502 mm 38 mm 502 mm 1054 mm COMPRESSOR ACCESS FROM LEFT SIDE Filter Size (inches) Shipping Weight BASIC MODEL HAA1042A HAA1048A FILTER SIZE - IN 18 x 24 x 1 BASIC MODEL HAA1042A HAA1048A FILTER SIZE - MM 457 x 610 x 25... -
Page 29: Figure 6C. Models Haa1060A Dimensional Data
92” [ 2337] 10 mm 117 mm 57 mm 502 mm 38 mm 502 mm 1054 mm COMPRESSOR ACCESS FROM LEFT SIDE Filter Size (inches) Shipping Weight BASIC MODEL HAA1042A HAA1048A HAA1060A FILTER SIZE - IN 18 x 24 x 1 BASIC MODEL HAA1042A HAA1048A HAA1060A... -
Page 30: Equipment Inspection
4.4 Equipment Inspection Concealed Damage Inspect all cartons and packages upon receipt for damage in transit. Remove cartons and check for concealed damage. Important: Keep the unit upright at all times. Remove access panels and examine component parts. ( N ote: The top ( o ptional ) and bottom brackets are stored in the condenser air compart- ment. -
Page 31: Installation Materials
4.6 Installation Materials Installation Kits Eubank HAA air conditioners with gas heat have built-in mounting flanges that function as side brackets. All models require and are shipped with a bottom mounting bracket. There is also an air intake hood packed inside each unit and a vent hood. Standard Kit Components 1. -
Page 32: Porting And Duct Work
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 Airxcel Commercial Group for additional assistance. 4.9 Wall Openings Measure the dimensions of the supply and return openings on the unit. -
Page 33: Minimum Airflow Requirements
Applications using duct work should be designed and installed in accordance with all applicable safety codes and standards. Airxcel Commercial Group strongly recommends referring to the current edition of the National Fire Protection Association Standards 90 A and 90 B before designing and installing ductwork. -
Page 34: Gas Supply And Piping
4. For wiring into the back of unit, locate the lower of the two knock-outs on the wall side of the unit. Drill a one inch hole in the building wall to match this opening. Allow sufficient clearance to run 3 ... -
Page 35: Gas Piping Requirements
4.15 Gas Piping Requirements NOTE: The gas supply line must be installed by a qualified service technician in accordance with all building codes. NOTE: In the state of Massachusetts. a. Gas supply connections MUST be performed by a licensed plumber or gas fitter. b. - Page 36 WARNING FIRE OR EXPLOSION HAZARD Failure to properly install metal gas connector could result in death, bodily injury and / o r property damage. A flexible corrugated metal gas connector must be properly installed, shall not extend through the side of the furnace, and shall not be used inside the furnace.
-
Page 37: Electrical Connections
Final Check of Gas Piping • Test all pipes for leaks. • If orifices were changed, make sure they are checked for leaks. • During pressure testing of gas supply piping system: a. If test pressure does not exceed 1 / 2 ” psi, isolate the furnace from the gas supply piping system by closing the equipment shutoff valve. - Page 38 CAUTION This system contains components that require phasing for correct rotation. Failure to observe rotation and correct on start-up will cause damage not covered by the warranty. ATTENTION Ce système contient des composants qui nécessitent un phasage pour une rotation correcte. Il faut observer le sens de rotation et le corriger tout de suite s’il y a lieu au démarrage, sous peine de dommages qui ne seraient pas couverts par la garantie.
-
Page 39: Figure 8A. Typical Electrical Schematic - Without Economizer
Figure 8a. Typical Electrical Schematic - HAA without Economizer Eubank HAA A/C w/Gas Heat I&O Manual 03/2021 Rev.2... -
Page 40: Figure 8B. Typical Electrical Schematic - With Economizer
Figure 8b. Typical Electrical Schematic - HAA with Economizer Eubank HAA A/C w/Gas Heat I&O Manual 03/2021 Rev.2... -
Page 41: Venting Of The Furnace
4.17 Venting of the Furnace The wall mounted air conditioner with gas heat furnace is a Category I furnace, i.e., a central furnace which operates with a non-positive vent static pressure and with a flue loss not less than 17%. The furnace is fan assisted, i.e., an appliance equipped with an integral means to either draw or force products of combustion through the combustion changer and ... -
Page 42: Chapter 5 Checks And Adjustments
Chapter 5 Checks and Adjustments The unit must be operating in the heating mode while doing the following check and adjustments. Refer to the Start up instructions for starting the unit. WARNING ELECTRICAL SHOCK, FIRE, EXPLOSION OR CARBON MONOXIDE POISONING HAZARD Failure to follow safety warnings exactly could result in serious injury, death and ... -
Page 43: Figure 10. Gas Valve Manifold Pressure Tap
Figure 10. Gas Valve Manifold Pressure Tap 2. Turn gas ON. Operate furnace by using a jumper wire on the “10” and “4” thermostat connections on the low voltage board. The board is located in the electrical compartment in the unit. 3. -
Page 44: Natural Gas Input Rating Check
6. Remove jumper wire. 7. Check for gas leaks at the plug and repair as required. 5.3 Natural Gas Input Rating Check The gas meter can be used to measure the input to the furnace. Check with the gas supplier for the actual BTU content of the gas. 1. -
Page 45: Lp Gas Conversion
5.5 LP Gas Conversion The following instructions are for the field conversion of a Eubank gas heat with air conditioning from using Natural Gas to LP ( p ropane ) gas. This kit includes parts required to convert a burner assembly beginning with model number HMG075-125 only. -
Page 46: Figure 12. Gas Valve Manifold Pressure Tap
4. Loosen the gas pipe union and remove the gas supply pipe from the gas valve. 5. Remove the screws holding the manifold pipe assembly to the burner assembly. 6. Remove manifold. 7. Loosen and remove the Natural Gas Orifices and remove from the manifold. 8. -
Page 47: High Altitude Installations
For installations from 2,000 ( 6 10 m ) to 7,000 feet ( 2 ,134 m ) , see the following chart for proper sizing of the orifice. When the air conditioner with gas heat is installed above 7,000 ft. ( 2 ,134 m ) , please contact Airxcel Commercial Group. -
Page 48: Changing Orifices
HMG 22,500 BTUH / B urner HMG 25,000 BTUH / B urner ( U sed with HAA1024-1036 Heat Exchangers ) ( U sed with HAA1042-1060 Heat Exchangers ) Orifice- Natural Orifice- Propane Orifice- Natural Orifice- Propane Altitude Altitude Drill Size Dia. -
Page 49: Main Burner Flame Check
11. After reassembly, turn on the gas and check for leaks using a soapy solution. Correct all leaks immediately. 12. Turn power back on to the unit. 13. Turn gas ON at the shut off valve. 5.8 Main Burner Flame Check Allow the furnace to run for at least 10 minutes. -
Page 50: Chapter 6 Start-Up
Chapter 6 Start-Up Before lighting the unit, smell around the unit for gas. Be sure to smell next to the floor because LP gas is heavier than air and will settle on the floor. The gas valve on your unit is equipped with an ON/OFF knob. Use only your hand to turn the knob Never use tools. - Page 51 5. Replace heat section access panel. 6. Turn on electrical power to the unit. 7. Set room thermostat to desired temperature. 8. On a call for heating, the air switch closes, initiating a 30 second pre-purge. 9. At end of pre-purge period, the Spark and Gas valve is energized for up to a 5 second ignition trial. Gas valve will open.
-
Page 52: Start-Up Checklist
6.3 Start-Up Checklist Eubank HAA A/C w/Gas Heat I&O Manual 03/2021 Rev.2... -
Page 53: Chapter 7 Maintenance
7.1 Maintenance – Burner and Vent Outlet. Airxcel Commercial Group strongly recommends that the unit be serviced a minimum of twice a year – once prior to the heating season and once prior to the cooling season. At this time the filters, evaporator coil, condenser coil, the cabinet, and condensate drains, the burner flame, the burner and the combustion air inlet and outlet should be serviced and inspected as described below. -
Page 54: Drains
WARNING CARBON MONOXIDE POISONING A crack or hole in the heat exchanger could result in carbon monoxide gas which can cause death or serious injury. Carbon monoxide is colorless and odorless. Signs that there is a hole or crack in the heat exchanger include: •... -
Page 55: Burner
Distorted flame or yellow tips of the natural gas flame or long yellow tips on LP gas flames may be caused by one or more of the following: 1. Lint or dirt inside the burner or burner ports, 2. Lint or dirt at the air inlet between the burner and the manifold pipe, or any obstruction over the burner plate. -
Page 56: Chapter 8 Parts List
Chapter 8 Parts List MAJOR PURCHASED PARTS HAA1042 HAA1048 10052 10202 Compressor, Scroll 10093 10203 10094 10204 50322 50294 Capacitor, Scroll Compressor 55 / 370 60 / 440 Refrigerant R410A (Oz) 60 Hz Sound Blanket, Compressor 20017 20038 Crankcase Heater, Compressor 70044 60348 60348... - Page 57 MAJOR PURCHASED PARTS HAA1042 HAA1048 Relay, Outdoor Fan Motor (OFR) 50205 50205 Relay, B Damper 50420 50420 Low Voltage Transformer (50 VA) 50199 50199 50147 50147 Transformer (460 to 230 Volts) 1.5 KVA 1.5 KVA P/50007 P/50007 Transformer (460 to 230 Volts), GreenWheel 2.0 KVA 2.0 KVA Duct Furnace Heat Module: 45,000 Btu/Hr...
-
Page 58: Airxcel Commercial Group Limited Product Warranty
Chatper 9 Warranty 9.1 Airxcel Commercial Group Limited Product Warranty Marvair Inc., warrants its products to be free from defects in materials and workmanship under normal use to the original pur- chaser 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.
Need help?
Do you have a question about the Eubank HAA1024A and is the answer not in the manual?
Questions and answers