Preparing The Unit For Start Up; Pre-Start Of Unit; Spring Isolated Fans - Daikin DPS005 Installation And Maintenance Manual

Pre-Start of Unit

Electric shock and moving machinery hazard . Can
cause severe equipment damage, personal injury, or
death .
Disconnect and tag out all electrical power before
servicing this equipment.
All start-up and service work must be performed only
by trained, experienced technicians familiar with the
hazards of working on this type of equipment.
Read and follow this manual: "MicroTech III Unit
Controller" (OM 1141) before operating or servicing.
Bond the equipment frame to the building electrical
ground through grounding terminal or other approved
means .
All units are completely run tested at the factory to promote
proper operation in the field. However, to ensure proper
operation once the unit is installed, the following check, test,
and start procedures must be performed to properly start the
unit. To obtain full warranty coverage, complete and sign the
check, test, and start form supplied with the unit and return it to
Daikin Applied.
A representative of the owner or the operator of the equipment
should be present during start-up to receive instructions in the
operation, care, and maintenance of the unit.
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Spring Isolated Fans

DPS 016–028 Only
Moving machinery hazard. Can cause severe injury
ordeath. Before servicing equipment, disconnect power
and lockoff. More than one disconnect may be required
to de-energize unit. Prior to operating the fans for the
first time, refer to Check, Test and Start Procedures on
page 94 .
Releasing Spring Mounts
The supply fan on DPS 016–028 units is spring isolated due to
the relatively larger fan and increased applied energy.
The spring-mounted supply fan is locked down with four
shipping bolts for shipment. Remove each shipping bolt before
operating the fans. Figure 76
with a height adjustment nut and a shipping bolt.After removing
the shipping bolts, rock the fan assembly by hand to check for
freedom of movement.
Adjusting Spring Mounts
During operation all fans should ride level. Level the fan
assembly by performing the following:
1 . Loosen the 3/8" cap screw (do not remove).
2 . Loosen the spring cap nut.
3 . Rotate the 5/8" adjustment nut counter-clockwise to raise
the fan assembly, or clockwise to lower the fan assembly.
4 . Tighten the 3/8" cap screw.
5 . Tighten the spring cap nut.
Figure 76: Spring Mounts
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