Daikin DV25PECB14 - User Manual

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© 2015-2019
5151 San Felipe St., Suite 500, Houston, TX 77056
www.daikincomfort.com
DV**PEC / DV**FEC (EEV SERIES AIR HANDLERS)
IOD-4018J
11/2019
INSTALLATION INSTRUCTIONS
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 ............................................................................ 3
5.4 Clearances ..............................................................................................3
5.5 Horizontal Applications ............................................................................3
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 ................................................................................... 7
7.1 Tubing Size .............................................................................................. 7
7.2 Tubing Preparation .................................................................................. 7
7.3 Tubing Connections ................................................................................. 8
8 Condensate Drain Lines ........................................................................ 8
9 Ductwork.................................................................................................9
9.1 Return Ductwork ...................................................................................... 9
10 Return Air Filters ..................................................................................9
11 Electric Heat ......................................................................................... 9
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 ............................................. 11
12.4.1 Air Handler Only (Non-Heat Kit Models) ........................................... 11
12.4.2 Air Handler - Non-Circuit Breaker Heat Kits ..................................... 11
12.4.3 Air Handler With Circuit Breaker Heat Kit ......................................... 11
13 Achieving 1.4% & 2% Low Leakage Rate ........................................ 12
14 Airow Trim ........................................................................................ 12
15 Miscellaneous Start-Up Checklist .................................................... 12
15.1 Auxiliary Alarm Switch .........................................................................13
15.2 Circulator Blower ................................................................................. 14
15.3 Motor Orientation ................................................................................. 14
15.4 Accessory Contacts ............................................................................. 14
16 Troubleshooting .................................................................................. 15
16.1 Electrostatic Discharge (ESD) Precautions ....................................... 15
16.2 Diagnostic Chart ................................................................................. 15
16.3 Fault Recall.........................................................................................15
17 Fully Communicating Daikin System ................................................ 16
17.1 Overview..............................................................................................16
17.2 Airow Consideration ...........................................................................16
17.3 Thermostat Wiring ...............................................................................16
17.3.1 Two-Wire Outdoor and Four-Wire Indoor Wiring ......................... 16
17.4 Network Troubleshooting ..................................................................... 16
17.5 System Troubleshooting ...................................................................... 17
Troubleshooting ........................................................................................ 18
Diagnostic Codes ......................................................................................21
Setting the mode display .......................................................................... 22
Wiring Diagram .......................................................................................... 24
Routine Maintenance ................................................................................ 25
NOTICE
If an “Ed” error is encountered
on startup, verify that the
electric heater DIP switches
have been set to the appropriate
heater size. See Tables 9 and 10
for the heater kit airow delivery
and DIP switch settings.
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.
RECOGNIZE THIS SYMBOL
AS A SAFETY PRECAUTION.
Cancer and Reproductive Harm -
www.P65Warnings.ca.gov
PROP 65 WARNING
FOR CALIFORNIA CONSUMERS
0140M00517-A

Summary

Important Safety Instructions

Pre-Installation Considerations

Preparation

Read instructions, gather tools, and ensure all necessary items are on hand before starting installation.

System Matches

Ensure the system is manufacturer approved and AHRI listed; unmatched systems are not permitted.

Installation Location

Upflow Installation

For upflow, remove drip shield, side drain pan, and extension if needed; use primary drain port.

Horizontal Left Installation

For horizontal left, use primary drain port (B); consider Condensate Management Kit for high humidity.

Downflow;Horizontal Right Installation

For downflow, use mandatory downflow kit (DFK) to prevent pan sweating.

Refrigerant Lines

Tubing Preparation

Cut tubing ends to be round, burr-free, and clean to prevent refrigerant leaks.

Tubing Connections

Connect EEV liquid and suction lines, braze joints, and quench with water or wet rags.

Condensate Drain Lines

Ductwork

Return Ductwork

Electric Heat

Heat Kit Selection

Electrical and Control Wiring

Building Electrical Service Inspection

Wire Sizing

Maximum Overcurrent Protection (MOP)

Electrical Connections - Supply Voltage

Airflow Trim

Miscellaneous Start-Up Checklist

Auxiliary Alarm Switch

Circulator Blower

Troubleshooting

Electrostatic Discharge (ESD) Precautions

Disconnect power, touch metal surface to discharge static, and avoid touching controls or wires before grounding.

Diagnostic Chart

Fault Recall

Fully Communicating Daikin System

Overview

Thermostat Wiring

Network Troubleshooting

System Troubleshooting

Refer to outdoor unit manual and troubleshooting chart for specific issues, error codes, and corrective actions.

Daikin DV25PECB14 Specifications

General

Brand	Daikin
Model	DV25PECB14
Category	Air Handlers
Language	English