Daikin DV37PTCC14 Series User Manual

DV**PTC*14 SERIES AIR HANDLERS
IOD-4021K
06/2021
Only personnel that have been trained to install, adjust, service
or repair (hereinafter, “service”) the equipment specified in
this manual should service the equipment. The manufacturer
will not be responsible for any injury or property damage
arising from improper 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 installation, adjustment, servicing
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 training may result in
product damage, property damage, personal injury or death.
INSTALLATION INSTRUCTIONS
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19001 Kermier Road Waller, TX 77484
Index
1 Important Safety Instructions ................................................................ 2
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 Preparation ..................................................................................... 3
5.2 System Matches ............................................................................. 3
5.3 Interconnecting Tubing ................................................................... 4
5.4 Clearances ...................................................................................... 4
5.5 Horizontal Applications ................................................................... 4
6 Installation Location ......................................................... 4
6.1 Upow Installation ........................................................................... 4
6.2 Horizontal Left Installation .............................................................. 4
6.3 Downow/Horizontal Right Installation ........................................... 4
7 Refrigerant Lines .................................................................................... 6
7.1 Tubing Size ..................................................................................... 6
7.2 Tubing Preparation ......................................................................... 6
7.3 Tubing Connections for TXV Models .............................................. 7
7.4 Thermal Expansion Valve System Adjustment ............................... 8
8 Condensate Drain Lines .................................................. 8
9 Ductwork ......................................................................... 10
9.1 Thermal Expansion Valve System Adjustment ...................................... 10
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 ...................................................................................11
12.3 Maximum Overcurrent Protection (MOP) ....................................11
12.4 Electrical Connections – Supply Voltage .................................... 12
12.4.1 Air Handler Only (Non-Heat Kit Models) .................................. 12
12.4.2 Air Handler - Non-Circuit Breaker Heat Kits ............................. 12
12.4.3 Air Handler With Circuit Breaker Heat Kit ................................ 12
12.5 Low Voltage Connections ........................................................... 12
13 Achieving 1.4% and 2.0% Airow Low Leakage Rate ......................11
14 Start-Up Procedure ............................................................................. 12
15 Regular Maintenance ......................................................................... 12
16 Circulator Blower ................................................................................ 15
17 Troubleshooting ................................................................................. 17
© 2014 - 2021
If an “Ec” error is encountered on
startup, verify that the electric heater
DIP switches have been set to the
appropriate heater size. See pages
14-17 for the heater kit airflow
delivery and DIP switch se�ngs.
NOTICE

Daikin DV37PTCC14 Series Specifications

General

Model	DV37PTCC14 Series
Type	Air Handler
Refrigerant	R-410A
Voltage	208/230V
Phase	1
Cooling Capacity	37, 000 BTU/h
Heating Capacity	37, 000 BTU/h
Airflow Rate	1200 CFM
Static Pressure	0.5 in. w.c.

Summary

Safety and Warning Information

General Safety Precautions

Essential safety warnings including unqualified personnel, fire hazards, and CO poisoning.

Electrical and Environmental Safety

High voltage, grounding, and flammable liquid warnings for safe operation and installation.

Installation Procedures and Location

Shipping, Codes, and Pre-Installation

Covers shipping, inspection, codes, parts, and pre-installation requirements.

Installation Location and Orientation

Indoor installation requirements, orientation options, and specific installation types.

System Connections and Installation Details

Refrigerant Lines and Drain Lines

Covers refrigerant lines, TXV adjustment, and condensate drain line installation.

Ductwork, Filters, and Electric Heat

Details ductwork requirements, filter needs, and electric heat kit installation.

Electrical and Control Wiring

Covers electrical service inspection, wiring, and low voltage connections.

Operation, Configuration, and Troubleshooting

Airflow, Start-Up, and Maintenance

Covers airflow leakage, start-up procedures, and regular maintenance.

Thermostat Wiring and Blower Settings

Explains thermostat connections and circulator blower speed configuration.

Troubleshooting and Diagnostics

Covers ESD precautions, fault codes, system troubleshooting, and diagnostic codes.

Wiring Diagrams

Electrical Wiring Diagrams

Provides diagrams for unit electrical connections, including low and high voltage wiring.