background image

11

Regular Maintenance

The only item to be maintained on a regular basis by the user is
the circulating air filter(s).  Filter should be cleaned or replaced
regularly.

HIGH VOLTAGE!
Disconnect ALL power before servicing or 
installing this unit. Multiple power sources may 
be present. Failure to do so may cause property 
damage, personal injury or death.

 

Routine maintenance is essential for trouble free operation of
this Airhandler.  A few preseason checks can eliminate costly
repairs and down time.

A certified service technician must perform all services
mentioned below.

1.

Check and change air filters as needed

2.

Check, adjust or replace belts and check sheaves for
proper operation.

3.

Clean the evaporator coil and check for duct leaks.

4.

Check for proper charge and (or) for refrigerant leaks.

If these few precautions are observed and maintained, this
Airhandler can provide years of trouble free service.

Summary of Contents for DAR Series

Page 1: ...the customer on its safe use RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION Index Important Safety Instructions 2 Product Identification 3 Product Description 3 Unit Inspection 3 Codes Regulations 3 Re...

Page 2: ...ding is to be in accordance with the Canadian Electric Code CSA C22 1 uninterrupted unbroken This airhandler is designed for Upflow or Horizontal Left applications DO NOT INSTALL IN THE DOWNFLOW OR HO...

Page 3: ...er unit s If an incorrect unit is supplied it must not be installed and it is to be returned to the supplier The manufacturer assumes no re sponsibility for the installation of incorrect delivered uni...

Page 4: ...t to exceed 5 WC Inadequate duct work that restricts airflow can result in improper performance and compressor or heater failure Ductwork is to be constructed in a manner that limits restrictions and...

Page 5: ...divide the temperature rise from the table by 2 for 1st stage operation Electrical Supply Wire and MOP FIRE HAZARD To avoid the risk of property damage personal injury or fire use only copper conducto...

Page 6: ...e sizing The unit MCA for the air handler and the optional electric heat kit can be found on the unit Series and Rating Plate Wire size allows for no more than a 2 voltage drop from the building break...

Page 7: ...lectrical junction box that is located on the motor endplate on the side opposite from the shaft Use the following diagrams when performing this procedure DAR0904 Motor DAR1204 Motor Electrical Connec...

Page 8: ...n BL Blue Note brown wire is not used and is to be taped Two Stage Heat Single Stage Cooling where R Red W White BR Brown G Green BL Blue Heat Kit Installation Inspect for Shipping Damage The heat kit...

Page 9: ...roportional to the size of the tube Service personnel must use the appropriate heat level for the size of the tube being brazed CAUTION TO SUCTION VALVE OUTDOOR UNIT TO LIQUID VALVE OUTDOOR UNIT DAR09...

Page 10: ...halfclockwise screw in Tighten the set screw Reinstall the belt To decrease the airflow perform the same as above but rotate the sheave counterclockwise screw out The following table can be used as gu...

Page 11: ...utine maintenance is essential for trouble free operation of this Airhandler A few preseason checks can eliminate costly repairs and down time A certified service technician must perform all services...

Page 12: ...ICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH Wiring is subject to change Always refer to the wiring diagram o...

Reviews: