Daikin AMST U1400 Series, Installation & Operating Instructions Manual

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AMST***U1400**
AIR HANDLERS INSTALLATION &
OPERATING INSTRUCTIONS
© 2021-2023 Daikin Comfort Technologies Manufacturing, L.P.
19001 Kermier Rd., Waller, TX 77484
www.goodmanmfg.com -or- www.amana-hac.com
P/N: IO-4004C Date: April 2023
RECOGNIZE THIS SYMBOL
AS A SAFETY PRECAUTION.
NOTE: SPECIFICATIONS AND PERFORMANCE DATA LISTED HEREIN
ARE SUBJECT TO CHANGE WITHOUT NOTICE
Contents
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
5.6 Access .................................................................... 4
6 Installation Location ................................................... 4
6.1 Upflow Installation .................................................. 4
6.2 Horizontal Left Installation ...................................... 5
6.3 Horizontal Right Installation / Downflow Installation 5
6.4 Humid Environment Installations ............................ 6
6.4.1 All Installations – Humid Environments ............... 6
6.4.1.2 Downflow Installations – Humid Environments 6
6.4.1.3 Horizontal Installations – Humid Environments 6
7 Refrigerant Lines ........................................................ 7
7.1 Tubing Size ............................................................. 7
7.2 Tubing Preparation ................................................. 7
7.3 Tubing Connections ................................................ 7
7.4 Thermal Expansion Valve System Adjustment ....... 9
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
12.4.2 Air Handler - Non-Circuit Breaker Heat Kits ..... 13
Only personnel that have been trained to install, adjust,
service, maintenance or repair (hereinafter, “service”)
the equipment specified this manual should service the
equipment.
This equipment is not intended for use by persons
(including children) with reduced physical, sensory or
mental capacities, or lack of experience and knowledge,
unless they have been given supervision or instruction
concerning use of the appliance by a person responsible
for their safety.
Children should be supervised to ensure that they do not
play with the equipment.
The manufacturer will not be responsible for any injury
or property damage arising from improper supervision,
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 supervision, installation, adjustment,
servicing, maintenance or repair of the equipment specified
in this manual, or attempting to install, adjust, service
or repair the equipment specified in this manual without
proper supervision or training may result in product
damage, property damage, personal injury or death.
WARNING
RECOGNIZE THIS SYMBOL
AS A SAFETY PRECAUTION
Do not bypass safety devices.
WARNING