Prepare Unit Ventilator For Start-Up; Post Installation Checklist; Oiling - Daikin ARQ Installation And Maintenance Manual

Prepare Unit Ventilator for Start-up

Post Installation Checklist

† Unit securely fastened to wall
† Electrical hook-up complete; power, control, wall thermostat
(if applicable) in accordance with unit wiring diagram(s)
† Air filter clean and in place
† All access and end panels in place and protective covering
removed
† No debris, dust, dirt, or obstructions exist in front of the return
air intake grille at the floor
† All installation work has been completed in accordance with
applicable local, state and national codes
† Room air fan shaft bearing oiled
† Unit square and level and running smoothly and quietly
† No air infiltration
† Paint nicks and scratches touched up (as required)
† Access space provided for maintenance, service and unit
removal
† Shipping carton replaced over unit for protection
† Owner or maintenance personnel provided with a copy of this
manual and other manuals/documents shipped with the unit.
† Owner or maintenance personnel instructed on proper opera-
tion and maintenance
Remove Battery Shipping Tab
Check that board backup battery shipping tab is removed. To
remove, grasp tab and gently pull. Battery should be replaced
every 3 years of unit service.
Remove Battery ShippingTab

Oiling

Do not attempt to operate the unit fans until the room air fan
shaft bearing has been oiled.
Access to fan shaft bearing is through left top access door. Use
a high grade SAE 20 or 30 nondetergent mineral oil. A few drops
are sufficient. Do not over oil. Refer to
Note: Unit size 048 has a fan shaft bearing located between
the first and second fan from the unit left end that is
required to be oiled.
Turn off the unit (fan speed switch or unit on/off switch is located
behind the right front end compartment panel). Remove the center
front panel, pull out the filter and replace with a clean filter. Replace
the center panel and restart the unit.
Filters should be replaced during the first week of placing into
service to prevent dirt carry-over into the internals of the unit and
back into the classroom (see Figure 63). A periodic filter changeout
program should be established. Filters should be checked monthly
or more often if conditions indicate. Filters are included in all units.
CAUTION
When oiling the middle fan shaft bearing DO NOT allow oil to drip
down on the components located below the bearing.
www.DaikinApplied.com
Figure 63 for the oil point.
39
Figure 63: Fan shaft bearing(s) oil cup location(s)
Room Air Fan
Shaft Bearing
WARNING
Turn off unit before servicing to avoid danger of injury from rotat-
ing fans.
NOTICE
Motor manufacturer recommends not oiling the room fan motor.
Filter(s)
CAUTION
Units must have a filter installed when operating. Operation with-
out a filter can compromise unit performance due to build up of
dust and dirt on components.
Daikin single-use filters are standard on all self-contained
units, including the ARQ and GRQ. Permanent wire mesh and
renewable media filters are available in lieu of single-use filters.
• Single-use filters feature Amerglas media. They are
designed to be used once and discarded.
• Permanent filters are metal filters that may be removed for
cleaning and reused numerous times.
• Renewable media filters (Figure 64) consist of a heavy
painted metal structural frame and renewable Amerglas
media.
CAUTION
Dirty or clogged filters can impact unit performance, and damage
the unit.
Figure 64: Filter installation
Renewable Media
(Single-use and
Permanent Wire
Mesh Filters Also
Available.)
Filter
Unit Size 048 Bearing, Located
Between First and Second
Fan from Left End of Unit
Left Front Access Panel
Motor
IM 1083-3