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AMST**14*U00**
AIR HANDLERS INSTALLATION &
OPERATING INSTRUCTIONS
1 Important Safety Instructions .................................... 2
2 Shipping Inspection ................................................... 3
2.1 Parts ....................................................................... 3
2.2 Handling ................................................................. 3
2.3 Shipping Material Removal..................................... 3
2.3.1 Blower Support Bracket Removal ....................... 3
3 Codes & Regulations ................................................. 3
4 Replacement Parts ..................................................... 4
5 Pre-Installation Considerations ............................... 4
5.1 Preparation ............................................................. 4
5.2 System Matches ..................................................... 4
5.3 Interconnecting Tubing ........................................... 4
5.4 Clearances ............................................................. 4
5.5 Horizontal Applications ........................................... 4
6 Installation Location ................................................... 4
6.1 Upflow Installation .................................................. 5
6.2 Horizontal Left Installation ...................................... 5
6.4 Humid Environment Installations ............................ 6
6.4.1 All Installations - Humid Environments ............... 6
7 Refrigerant Lines ........................................................ 7
7.1 Tubing Size ............................................................. 7
7.2 Tubing Preparation ................................................. 7
7.3 Tubing Connections ................................................ 7
8 Condensate Drain Lines ........................................... 10
9 Ductwork .................................................................... 11
9.1 Return Ductwork .................................................... 11
10 Return Air Filters ..................................................... 11
11 Electric Heat ............................................................. 11
12 Electrical and Control Wiring ................................. 12
12.1 Building Electrical Service Inspection .................. 12
12.2 Wire Sizing .......................................................... 12
12.3 Maximum Overcurrent Protection (MOP) ............ 12
12.4 Electrical Connections - Supply Voltage ............. 13
12.4.1 Air Handler Only (Non-Heat Kit Models) ........... 13
12.4.3 Air Handler With Circuit Breaker Heat Kit ......... 13
12.5 Low Voltage Connections .................................... 13
12.5.1 Thermostats ...................................................... 13
12.6 Speed Tap Adjustment ......................................... 14
12.6.1 Selecting Speed Taps 1-5 ................................. 14
12.6.2 Selecting Speed Taps 6-9 ................................. 14
12.6.3 AMST60DU1400** (ONLY) ............................... 14
13 Achieving 1.4% Low Leakage Rate ....................... 16
14 Start-Up Procedure.................................................. 16
15 Regular Maintenance .............................................. 16
16 Airflow Data ............................................................... 17
17 Air Handler Low Voltage Connections ................... 19
18 Wiring Diagrams ...................................................... 20
19 Start-Up Checklist .................................................... 26
Contents
© 2021 Goodman Manufacturing Company, L.P.
Only personnel that have been trained to install, adjust, service
or repair(hereinafter, "service") the equipment specified in this
manual should service the equipment. The manufacturer will not
be responsible for any injury or property damage arising from im-
proper service or service procedures. If you service this unit, you
assume responsibility for any injury or property damage which
may result. In addition, in jurisdictions that require one or more
licenses to service the equipment specified in this manual, only
licensed personnel should service the equipment.
Improper installation, adjustment, servicing or repair of the equip-
ment specified in this manual, or attempting to install, adjust,
service or repair the equipment specified in this manual without
proper training may result in product damage, property damage,
personal injury or death.
RECOGNIZE THIS SYMBOL
AS A SAFETY PRECAUTION.
NOTE: SPECIFICATIONS AND PERFORMANCE DATA LISTED HEREIN
ARE SUBJECT TO CHANGE WITHOUT NOTICE
19001 Kermier Rd., Waller, TX 77484
P/N: IO-4004 Date: July 2021
WARNING
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Summary of Contents for Goodman AMST 14 U00 Series
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Page 1: Table Of Contents
AMST**14*U00** © 2021 Goodman Manufacturing Company, L.P. 19001 Kermier Rd., Waller, TX 77484 AIR HANDLERS INSTALLATION & P/N: IO-4004 Date: July 2021 OPERATING INSTRUCTIONS Contents 1 Important Safety Instructions ........2 WARNING 2 Shipping Inspection ........... 3 Only personnel that have been trained to install, adjust, service 2.1 Parts ............... -
Page 2: Important Safety Instructions
WARNING HIGH VOLTAGE DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSON- AL INJURY OR DEATH. CARBON MONOXIDE POISONING HAZARD Special Warning for Installa on of Furnace or Air Handling Units in Enclosed Areas such as Garages, U lity Rooms or Parking Areas WARNING Carbon monoxide producing devices (such as an automobile, space... -
Page 3: Shipping Inspection
2 Shipping Inspection Always transport the unit upright; laying the unit on its side or top during transit may cause equipment damage. The installer should inspect the product upon receipt for shipping damage and subsequent investigation is the responsibility of the carrier. The installer must verify the model number, specifications, electrical characteristics, and accessories are correct prior to installation. -
Page 4: Replacement Parts
4 Replacement Parts 5.5 Horizontal Applications If installed above a finished living space, a secondary When reporting shortages or damages, or ordering repair drain pan (as required by many building codes), must be parts, give the complete product model and serial numbers installed under the entire unit and its condensate drain line as stamped on the product. -
Page 5: Upflow Installation
6.3 Horizontal Right Installation / Downflow Drain Port Plug Installation Kit Number Description Application NOTE: For AMST24BU1400** only: If installing a filter, DPK1 Side Drain Port Plug All Models an external filter must be used when installing the unit in Horizontal Right, or if the side drain pan is not DRAIN PORT PLUG KIT removed for Down Flow application. -
Page 6: Humid Environment Installations
NOTE: If removing only the coil access panel from the unit, the filter access panel must be removed first. Failure to do so will result in panel damage. 6.4 Humid Environment Installations NOTE: Each service kit mentioned in this instruction is available through your local distributor. -
Page 7: Refrigerant Lines
recommended when brazing to avoid burning the serial plate or the finish of the unit. Heat trap or wet rags must be used to protect heat sensitive components such as service valves and TXV valves sensing bulb. WARNING HORIZONTAL LEFT Figure 5 A QUENCHING CLOTH IS STRONGLY RECOMMENDED TO PRE- VENT SCORCHING OR MARRING OF THE EQUIPMENT FINISH... - Page 8 Upper Tie Plate Control Deck Blower Access Panel Downflow Coil Bracket Tubing Access Panel Panel Center Support Filter Bracket Filter Access Panel Knockout Internal Part Terminology External Part Terminology Figure 7 Figure 8 Coil Installation For Downflow Figure 9 Access Panel Configuration for Downflow or Horizontal Right Important Note: Ensure coil slides on the rails along Figure 10...
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Page 9: Thermal Expansion Valve System Adjustment
7.4 Thermal Expansion Valve System Adjustment SATURATED SUCTION PRESSURE Run the system at Cooling for 10 minutes until refrigerant TEMPERATURE CHART pressures stabilize. Use the following guidelines and methods to check unit operation and ensure that the SUCTION PRESSURE SATURATED SUCTION refrigerant charge is within limits. -
Page 10: Condensate Drain Lines
NOTE: Water coming from secondary line means the SATURATED LIQUID PRESSURE coil primary drain is plugged and needs immediate TEMPERATURE CHART attention. SATURATED LIQUID LIQUID PRESSURE TEMPERATURE °F CAUTION PSIG R-410A IF SECONDARY DRAIN IS NOT INSTALLED, THE SECONDARY ACCESS MUST BE PLUGGED. Insulate drain lines located inside the building or above a finished living space to prevent sweating. -
Page 11: Ductwork
11 Electric Heat IMPORTANT NOTE: The evaporator coil is fabricated with oils that may dissolve styrofoam and certain types Refer to the installation manual provided with the electric of plastics. Therefore, a removal pump or float switch heat kit for the correct installation procedure. All electric must not contain any of these materials. -
Page 12: Electrical And Control Wiring
12.1 Building Electrical Service Inspection This unit is designed for single-phase electrical supply HEAT KIT NOMINAL kW only. DO NOT OPERATE ON A THREE-PHASE POWER 15 19/20 25 SUPPLY. Measure the power supply to the unit. The supply voltage must be measured and be in agreement with the unit nameplate power requirements and within the 1000 range shown. -
Page 13: Electrical Connections - Supply Voltage
HEATER KIT (kW) Model AMST24BU14 AMST30BU14 1050 AMST36BU14 1050 AMST36CU14 1170 1170 1170 1170 1345 1345 AMST42CU14 1170 1170 1170 1170 1345 1345 AMST48CU14 1170 1170 1170 1170 1345 1345 AMST48DU14 1240 1240 1240 1240 1520 1520 AMST60DU14 1590 1590 1590 1590 1715... -
Page 14: Air Handler With Circuit Breaker Heat Kit
12.4.1 Air Handler Only (Non-Heat Kit Models) The AMST blower motor speeds are programmed to deliver IMPORTANT: Installation of Air Handler must follow any adequate airflow at rated external static pressure and local codes/regulations. The manufacture recommends with a 60 second off time delay. For details, refer to the that when a heater kit is not installed, a field supplied specification sheet applicable to your model. -
Page 15: Amst60Du1400** (Only)
12.6.2 Selecting Speed Taps 6-9 (Not applicable to 12.6.3 AMST60DU1400** (ONLY) For high static applications, no speed tap or airflow AMST60DU1400**) When selecting speed taps 6-9, move the Black (BK) modifications should be made from the factory settings. To jumper, jumping T1 to any of terminal block locations T2 - obtain T1 airflow for low static applications, the Purple (PU) T5. -
Page 16: Achieving 1.4% Low Leakage Rate
13 Achieving 1.4% Low Leakage Rate 15 Regular Maintenance Ensure all the gaskets remain intact on all surfaces as The only item required to be maintained on a regular basis shipped with the unit. These surfaces are areas between by the user is the circulating air filter(s). Filter should be the upper tie plate and blower access panel, blower access cleaned or replaced regularly, typically once per month. -
Page 17: Airflow Data
16 Airflow Data Speed CFM @ STATIC PRESSURE (IN W.C.) Model 1030 1005 AMST24BU1400AA 1100 1080 1035 1020 1045 1025 1215 1195 1155 1145 1105 1095 1045 1040 1185 1165 1125 1115 1070 1060 1015 1010 AMST30BU1400AA 1070 1050 1005 1185 1165 1125... - Page 18 Speed CFM @ STATIC PRESSURE (IN W.C.) Model 1165 1140 1085 1065 1210 1185 1130 1110 1040 1025 1215 1190 1135 1120 1055 1040 1495 1470 1425 1415 1365 1355 1305 1295 1220 AMST42CU1400AA 1435 1410 1360 1345 1295 1285 1220 1210 1140...
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Page 19: Air Handler Low Voltage Connections
17 Air Handler Low Voltage Connections The following composite wiring diagrams detail various configurations in which the air handlers can be used. Examples include single-stage cooling and heat pump with single or two-stage electric heating. All these configurations can be applied with convenient connections to outdoor thermostat applications. -
Page 20: Wiring Diagrams
18 Wiring Diagrams HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING. WARNING MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. #18 GA. 4 WIRES WITH COOLING 3 WIRES WITHOUT AIR HANDLER TO CONDENSING UNIT 24V CONNECTION COOLING UNIT WITH OPTIONAL HEAT KITS OF 10 kW AND BELOW... - Page 21 HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING. WARNING MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. SEE NOTE #4 #18 GA. 7 WIRE AIR HANDLER BL BL HEAT PUMP UNIT WITH OPTIONAL HEAT KITS OF 10 kW AND BELOW SEE NOTE #4 #18 GA.
- Page 22 HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING. WARNING MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. AMST**U1400** (1.5T - 4T) Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
- Page 23 HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING. WARNING MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. AMST60DU1400** Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
- Page 24 HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING. WARNING MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. 3-Phase Heat Kit Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
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Page 25: Air Handler
AIR HANDLER AIR HANDLER HOMEOWNER’S ROUTINE MAINTENANCE RECOMMENDATIONS Replace or Clean Filter It has been determined that many coil cleaners and drain pan tablets contain corrosive chemicals that can be harmful to aluminum tube and fin evaporator coils. Even a one- IMPORTANT NOTE: Never operate unit without a filter time application of these corrosive chemicals can cause installed as dust and lint will build up on internal parts... -
Page 26: Start-Up Checklist
19 Start-Up Checklist Air Handler / Coil Model Number Serial Number ELECTRICAL Line Voltage (Measure L1 and L2 Voltage) L1 - L2 Secondary Voltage (Measure Transformer Output Voltage) R - C Blower Amps Heat Strip 1 - Amps Heat Strip 2 - Amps BLOWER EXTERNAL STATIC PRESSURE Return Air Static Pressure IN. - Page 27 THIS PAGE IS INTENTIONALLY LEFT BLANK...
- Page 28 ® For Product Registration, please register as follows: Daikin Products: (https://daikincomfort.com/owner-support/product-registration). Goodman® Brand products: (https://www.goodmanmfg.com/product-registration). Amana® Brand products: (http://www.amana-hac.com/product-registration). You can also scan the QR code on the right for the product brand you purchased to be directed to the Product Registration page.
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