Section 1: Model Nomenclature and AHRI Data
Model Nomenclature Decoder .................................................................................................................................. 4
AHRI Performance Data .............................................................................................................................................. 4
Section 2: Installation Introduction
Introduction ................................................................................................................................................................... 5
Pre-Installation............................................................................................................................................................... 6
Components ................................................................................................................................................................. 6
Section 3: Installation Considerations
Unit Placement ............................................................................................................................................................. 8
Duct Work ...................................................................................................................................................................... 8
Section 4: Unit Installation
Typical Supply and Return Ductwork Connections .................................................................................................. 9
Dimensional Data ....................................................................................................................................................... 10
ECM Fan Performance - Two-Stage Compressor Units .......................................................................................... 11
Dehumidification Mode Options .............................................................................................................................. 11
Unit Physical Data ....................................................................................................................................................... 12
Unit Electrical Data: .................................................................................................................................................... 12
Unit Return Air Conversion ......................................................................................................................................... 13
To convert the unit to right hand return air: ............................................................................................................. 13
To convert the unit to downflow supply air: ............................................................................................................. 13
Section 5: Unit Piping Installation
Water Quality .............................................................................................................................................................. 14
Water Quality Guidelines ........................................................................................................................................... 14
Interior Piping .............................................................................................................................................................. 15
Typical Pressurized Flow Center Installation ............................................................................................................. 15
Typical Non-Pressurized Flow Center Installation .................................................................................................... 16
Pressurized Flow Center and Pump Mounting ......................................................................................................... 17
Condensation Drain Connection ............................................................................................................................. 18
Flushing & Charging a Pressurized Flow Center ...................................................................................................... 19
Flush Cart Design ........................................................................................................................................................ 19
Typical Non-Pressurized Flow Center Installation .................................................................................................... 21
Flushing the Interior Piping (Non-Pressurized) ........................................................................................................... 22
Antifreeze Overview .................................................................................................................................................. 22
Antifreeze Characteristics ......................................................................................................................................... 22
Antifreeze Charging ................................................................................................................................................... 23
APSMA Pump Sharing Module .................................................................................................................................. 25
Open Loop Piping and Connections ....................................................................................................................... 26
Open Loop Single Stage Solenoid Connections ..................................................................................................... 27
Open Loop Two-Stage Solenoid Connections ........................................................................................................ 27
Section 6: Desuperheater Installation
Desuperheater Installation ........................................................................................................................................ 28
Plumbing Installation .................................................................................................................................................. 28
Typical Desuperheater Installation with Single Water Heater ................................................................................ 30
Desuperheater Installation with Preheat Tank ......................................................................................................... 30
Table of Contents