Table of Contents
Advertisement
DAR
SERIES
COMMERCIAL AIR HANDLERS
ATTENTION INSTALLING PERSONNEL:
Prior to installation, thoroughly familiarize yourself with this
Installation Manual. Observe all safety warnings. During
installation or repair, caution is to be observed.
It is your responsibility to install the product safely and to
educate the customer on its safe use.
RECOGNIZE THIS SYMBOL
AS A SAFETY PRECAUTION.
IMPORTANT NOTE:
DAR models are suitable for Upflow and Horizontal
Installations only. Do not use for Downflow Installations.
IOD-4010
6/2013
Our continuing commitment to quality products may mean a change in specifications without notice.
© 2013
5151 San Felipe St., Suite 500, Houston, TX 77056
www.daikincomfort.com
INSTALLATION INSTRUCTIONS
Index
Important Safety Instructions .............................................. 2
Product Identification .......................................................... 3
Product Description ............................................................. 3
Unit Inspection .................................................................... 3
Codes & Regulations ............................................................ 3
Replacement Parts ............................................................... 3
Pre-Installation Instructions ................................................. 3
Location ............................................................................... 4
Ductwork ............................................................................. 4
Supply Ductwork and Flanges ............................................ 4
Return Ductwork ............................................................... 4
Return Air Filters ............................................................... 4
Electric Heat ........................................................................ 4
Electrical Supply Wire and MOP ........................................... 5
Building Electrical Service Inspection ................................. 5
Wire Sizing ........................................................................ 6
Maximum Overcurrent Protection (MOP) .......................... 6
Conversion 0f 460 Electrical Power Supply ......................... 7
Electrical Connections .......................................................... 7
Supply Voltage .............................................................. 7
Air Handler Only (Non-Heat Kit Models) ....................... 7
Heater Kit Models ......................................................... 7
Low Voltage Connections .............................................. 8
Heat Kit Installation ............................................................. 8
Refrigerant Lines .................................................................. 8
Tubing Preparation ........................................................... 9
Post Brazing ...................................................................... 9
Piping Size ......................................................................... 9
Evaporator Coil TXV ........................................................... 10
Airflow ............................................................................... 10
Belt Tension ....................................................................... 10
Regular Maintenance ......................................................... 11
Wiring Diagram .................................................................. 12
Advertisement
Table of Contents
Related Manuals for Daikin DAR Series
Summary of Contents for Daikin DAR Series
-
Page 1: Table Of Contents
INSTALLATION INSTRUCTIONS SERIES COMMERCIAL AIR HANDLERS Index Important Safety Instructions ..........2 Product Identification ............3 Product Description ............. 3 Unit Inspection ..............3 Codes & Regulations ............3 Replacement Parts ............... 3 Pre-Installation Instructions ..........3 Location ................4 Ductwork ................ -
Page 2: Important Safety Instructions
HIGH VOLTAGE! Do not connect to or use any device that is not design- Disconnect ALL power before servicing. certified by Daikin for use with this unit. Serious Multiple power sources may be present. property damage, personal injury, reduced unit... -
Page 3: Product Identification
The DAR series is intended for use with a room thermostat. This The United States Environmental Protection Agency (EPA) has thermostat is not supplied with this equipment. Only thermostats issued various regulations regarding the introduction and dis- that use 24 VAC control circuitry are to be used. -
Page 4: Location
Location NOTE: Airhandlers are designed for indoor installation only. When installing this airhandler in an enclosed area, such as a ga- rage/parking area, as with any carbon monoxide producing de- vice (i.e. and automobile, space heater, water heater, etc.), insure that the area is properly ventilated. -
Page 5: Electrical Supply Wire And Mop
Electrical Supply Wire and MOP KW Correction Factors (-3 Models) Supply Voltage Correction Factor 0.92 0.84 0.77 0.75 FIRE HAZARD! To avoid the risk of property damage, personal injury or fire, use only copper conductors. KW Correction Factors (-4 Models) Supply Voltage Correction Factor 0.92... -
Page 6: Wire Sizing
Voltage Balance The supply voltage shall be unbalance (phase • Refer to the NEC (USA) or CSA (Canada) for wire sizing. The to phase) within 2%. To calculate the percentage of voltage unit MCA for the air handler and the optional electric heat unbalance use the following formula: kit can be found on the unit Series and Rating Plate. -
Page 7: Conversion 0F 460 Electrical Power Supply
Conversion 0f 460 Electrical Power Supply DAR1204 Motor THIS PRODUCT IS CAPABLE OF USING EITHER 208- 230/3/60 OR 460/3/60 SUPPLY VOLTAGE. THE AIRHANDLER IS FACTORY SHIPPED FOR USE WITH 208-230/3/60 VOLTAGE. INSTALLATIONS USING 460/3/60 REQUIRE A MODIFICATION TO THE MOTOR AND TRANSFORMER ELECTRICAL CIRCUIT. -
Page 8: Low Voltage Connections
The heater kit is factory equipped with the supply and low volt- age wires for the airhandler. The low voltage connection from the heater kit is provided through a multi-pin plug which connects to a mating plug in the airhandler. The high voltage connections are to be made at the air handler contactor. -
Page 9: Tubing Preparation
TO SUCTION VALVE OUTDOOR UNIT A quenching cloth is strongly recommended to prevent scorching or marring of the equipment finish when welding close to the painted surfaces. Use brazing TO LIQUID VALVE alloy of 5% minimum silver content. OUTDOOR UNIT Tubing Preparation All cut ends are to be round, burr free, and clean. -
Page 10: Evaporator Coil Txv
Evaporator Coil TXV The following table can be used as guide for system airflow: Note: Thermal Expansion Valve (TXV) Bulb is not permanently con- DAR0904 nected to the suction from the factory. After suction and liquid Static Sheave Turns Open line tubing is brazed in the field, the TXV bulb must be attached Pressure and insulation to the suction line(s) inside the cabinet at the 10 or... -
Page 11: Regular Maintenance
A certified service technician must perform all services Regular Maintenance mentioned below. The only item to be maintained on a regular basis by the user is 1. Check and change air filters as needed the circulating air filter(s). Filter should be cleaned or replaced 2. -
Page 12: Wiring Diagram
Wiring Diagram Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
Need help?
Do you have a question about the DAR Series and is the answer not in the manual?
Questions and answers