Install Instructions
RECOGNIZE THIS SYMBOL
AS A SAFETY PRECAUTION.
ATTENTION INSTALLING PERSONNEL
Prior to installat ion, thoroughly familiarize yourself with this Installation M anual.
Observe all safety warnings. During inst allat ion or repair, caut ion is t o be observed.
It is your responsibility to install t he product safely and to educate the customer on it s safe use.
ARUF**14**/ARPT**14**
1 Important Safety Instructions
The follow ing symbols and labels are used throughout this manual
to indicate immediate or potent ial safet y hazards. It is the ow ner’s
and installer’s responsibilit y to read and comply wit h all safet y
information and instructions accompanying these symbols. Fail-
ure to heed safet y information increases the risk of personal in-
jury, propert y damage, and/ or product damage.
Keep t his literature in a safe place for future reference.
ASPT**14**/ASUF**14**
AIR HANDLERS INSTALLATION & OPERATING INSTRUCTIONS
IO-427L
7/ 2015
Contents
1 Important Safety Instructions ........................................... 1
2 Shipping Inspection ........................................................... 3
2.1 Parts.................................................................................. 3
2.2 Handling ........................................................................... 3
3 Codes & Regulations ......................................................... 3
4 Replacement Parts ............................................................ 3
5 Pre-Installation Considerations ........................................ 3
5.1 Preparat ion ....................................................................... 3
5.2 System M atches ................................................................ 3
5.3 Int erconnecting Tubing ..................................................... 3
5.4 Clearances......................................................................... 4
5.5 Horizontal Applications ..................................................... 4
6 Installation Location ......................................................... 4
6.1 Upflow Installation ............................................................ 4
6.2 Horizontal Left Installat ion ................................................ 4
6.3 Downflow/ Horizontal Right Installation ............................ 5
7 Refrigerant Lines ............................................................... 7
7.1 Tubing Size ........................................................................ 7
7.2 Tubing Preparation ........................................................... 7
7.3 Special Instructions ........................................................... 8
7.4 Tubing Connections for Flowrator M odel .......................... 8
7.5 Tubing Connections for TXV M odels.................................. 8
8 Condensate Drain Lines ..................................................... 9
9 Ductwork .......................................................................... 9
9.1 Ret urn Ductwork ............................................................... 9
10 Return Air Filters ........................................................... 10
11 Electric Heat .................................................................. 10
12 Electrical and Control Wiring ......................................... 11
12.1 Building Electrical Service Inspection ............................ 11
12.2 Wire Sizing .................................................................... 12
12.3 M aximum Overcurrent Protection (M OP) ..................... 12
12.4 Electrical Connections – Supply Voltage ........................ 12
12.4.1 Air Handler Only (Non-Heat Kit M odels) ........... 12
12.4.2 Air Handler - Non-Circuit Breaker Heat Kit s ....... 12
12.4.3 Air Handler With Circuit Breaker Heat Kit ......... 12
12.5 Low Voltage Connections .............................................. 13
12.5.1 Thermostat s ....................................................... 13
12.6 Speed Tap Adjustment .................................................. 13
13 Achieving 2% Low Leakage Rate .................................... 13
14 Start-Up Procedure ........................................................ 13
15 Regular M aintenance .................................................... 13
16 Airflow Data ................................................................. 14
21 Wiring Diagrams ........................................................... 20