AWST Installation Manual
IO-4005
08/2022
CONTENTS
1 Important Safety Instructions .............................Pg. 1
2 Shipping Inspection ...........................................Pg. 2
3 Codes & Regulations ..........................................Pg. 2
4 Replacement Parts ..............................................Pg. 2
5 Pre- Installation Instructions .............................. Pg. 2
5.1 Preparation ......................................................Pg. 2
5.2 System Matches ..............................................Pg. 2
5.3 Interconnecting Tubing ....................................Pg. 3
6 Application Information ......................................Pg. 3
6.1 Wire Sizing ......................................................Pg. 3
6.2 Maximum Overcurrent Protection (MOP) ........Pg. 4
6.3 Electrical Connections-Supply Voltage ............Pg. 4
6.4 Fresh Air Openings .........................................Pg. 4
7 AWST-Factory Installed TXV Models ................ Pg. 4
7.1 Tubing Size ..................................................... Pg. 4
7.2 Tubing Connection .......................................... Pg. 4
7.3 Thermal Expansion Valve System Adjustment Pg. 5
8 Maintenance Check ............................................ Pg. 5
9 Wiring Diagrams and Air Flow Data ................... Pg. 6
9.1 Low Voltage Connection .................................Pg. 6
10 Trouble Shooting .............................................. Pg. 11
VERTICAL MOUNT AIR HANDLERS
© 2022
19001 Kermier Rd., Waller, TX 77484
www.daikinac.com
P/N: IO-4005 Date: August 2022
SOURCES MAY BE PRESENT. FAILURE TO DO SO
INJURY OR DEATH.
THE EQUIPMENT SPECIFIED IN THIS MANUAL SHOULD
SERVICE THE EQUIPMENT. THE MANUFACTURER WILL
NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY
RESPONSIBILITY FOR ANY INJURY OR PROPERTY
JURISDICTIONS THAT REQUIRE ONE OR MORE LICENSES
TO SERVICE THE EQUIPMENT SPECIFIED IN THIS
THE EQUIPMENT.
THE EQUIPMENT SPECIFIED IN THIS MANUAL WITHOUT
-
VAPORS IN THE VICINITY OF THIS APPLIANCE.
CAUTION
HAVE YOUR CONTRACTOR IDENTIFY ALL THE VARIOUS CUT
OFF SWITCHESAND DEVICES THAT SERVICE THIS UNIT.
CAUTION
THIS APPLIANCE IS NOT INTENDED FOR THE USE BY PER-
-
APPLIANCE BY A PERSON RESPONSIBLE FOR THEIR SAFETY.
CHILDREN SHOULD BE SUPERVISED TO ENSURE THAT THEY
DO NOT PLAY WITH THE APPLIANCE.
CERTIFIED FOR USE WITH THIS UNIT OR HAVE NOT BEEN
TESTED AND APPROVED BY THE MANUFACTURER. SERIOUS
PERFORMANCE AND/OR HAZARDOUS CONDITIONS MAY
RESULT FROM THE USE OF DEVICES THAT HAVE NOT BEEN
APPROVED OR CERTIFIED BY THE MANUFACTURER.
1 Important Safety Instructions
As a professional installer, you have an obligation to know
the product better than the customer. This includes all safety
precautions and related items. Prior to actual installation,
thoroughly familiarize yourself with this Instruction Manual.
Pay special attention to all safety warnings. Remember, it is
your responsibility to install the product safely and to know it
well enough to be able to instruct a customer in its safe use.
Safety is a matter of common sense...a matter of thinking before
acting. Most dealers have a list of specic, good safety
practices...follow them.
The precautions listed in this Installation Manual are in- tended
as supplemental to existing practices. However, if there is a
direct conict between existing practices and the content
of this manual, the precautions listed here take precedence.