Air Handler with DX-Kit - Installation and Maintenance Manual - Standard PSC - Single Piece, Multi-Position - Compatibility

Oct 25, 2026

Installation and maintenance manual for an air handler system paired with a DX-Kit. Provides compatibility mapping between combined model numbers and the corresponding DX-Kit and air handler models, plus installation guidance for components including duct work, electronic expansion valve, refrigerant lines, condensate drains, electric heater, and electrical wiring. Includes safety and attention requirements, software version alignment verification steps, maintenance procedures, air system adjustment, and installation verification. Table of contents covers air handler and DX-Kit topics, along with tables for dimensions and electrical/physical data.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages88

Reading Time3 h 42 min

AccessFree to download

Air Handler

1. Introduction

2. Safety

3. Unit Installation

4. Duct Work and Connections

5. Electronic Expansion Valve

6. Refrigerant Line Connection

7. Condensate Drain Connections

8. Electric Heater Installation

9. Line Power Connections

10. Blower Speed Connections

11. Unit Data

12. Maintenance

13. Air System Adjustment

14. Installation Verification

DX-Kit

15. Introduction

16. Safety Instructions

17. Before Installation

18. Installation Location

19. Installation Work

20. Refrigerant Piping Work

21. Electrical Wiring

22. Test Run

23. Cautions

24. Electric Heater Installation

25. Startup Sheet

Installation and Maintenance Manual Air Handler with DX-Kit Air Handler Standard PSC Single Piece, Multi-Position Compatibility | DX-Kit and Air Handler
Combined Model | DX-Kit | Air Handler
Model | | --- | --- | --- | | (H,Y,C)MAHP18B21S | EXV-018E | AP18BX21 | | (H,Y,C)MAHP24B21S | EXV-024E | AP24BX21 | | (H,Y,C)MAHP30B21S | EXV-030E | AP30BX21 | | (H,Y,C)MAHP36B21S | EXV-036E | AP36BX21 | | (H,Y,C)MAHP36C21S | EXV-036E | AP36CX21 | | (H,Y,C)MAHP48C21S | EXV-048E | AP48CX21 | | (H,Y,C)MAHP48D21S | EXV-048E | AP48DX21 | | (H,Y,C)MAHP60C21S | EXV-060E | AP60CX21 | | (H,Y,C)MAHP60D21S | EXV-060E | AP60DX21 | | (H,Y,C)MAHP60D22S | EXV-060E | AP60DX22 | IMPORTANT: READ AND UNDERSTAND THIS MANUAL BEFORE INSTALLING THIS DX-KIT. KEEP THIS MANUAL FOR FUTURE REFERENCE. PMGB0381 ATTENTION Each model number and all matching model numbers within a system must have the same version of software. Follow these steps to verify that your product model numbers have the same version of software. • Access the main printed circuit board in each product. • Locate a white sticker with a P-XXXX number or • Connect a service checker and locate the ROM number. For further assistance, please contact our Technical Support Center at 1 (844) 873-4445 and select Option 2. Table of Contents Air Handler .....................................................................................................................................................5 1. Introduction .............................................................................................................................................. 5 2. Safety ...................................................................................................................................................... 5 3. Unit Installation ........................................................................................................................................ 9 4. Duct Work and Connections .................................................................................................................. 13 5. Electronic Expansion Valve ................................................................................................................... 15 6. Refrigerant Line Connection.................................................................................................................. 16 7. Condensate Drain Connections ............................................................................................................ 18 8. Electric Heater Installation..................................................................................................................... 18 9. Line Power Connections ....................................................................................................................... 19 10. Blower Speed Connections .................................................................................................................20 11. Unit Data .............................................................................................................................................. 20 12. Maintenance ........................................................................................................................................ 29 13. Air System Adjustment ........................................................................................................................29 14. Installation Verification......................................................................................................................... 30 DX-Kit .............................................................................................................................................................31 15. Introduction .......................................................................................................................................... 32 16. Safety Ins

FAQs

What must be done before installing the DX-Kit air handler system?

Read and understand the manual before installing the DX-Kit. Keep the manual for future reference.

How can you verify that the model numbers in the system use the same software version?

Access the main printed circuit board and locate the white sticker with a P-XXXX number, or connect a service checker to locate the ROM number. Confirm that each model number and matching model numbers within the system share the same software version.

Which components are covered under unit installation and connection topics?

The manual covers unit installation, duct work and connections, electronic expansion valve, refrigerant line connection, condensate drain connections, electric heater installation, and line power and blower speed connections.

Oct 25, 2026

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