Preparing the Unit for Start Up
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123
IM 1125-13 • REBEL ROOFTOPS
Preparing the Unit for Start Up
Pre-Start of Unit
DANGER
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.
Spring Isolated Fans
DPS 016–028 Only
WARNING
Moving machinery hazard. Can cause severe injury or death. Before
servicing equipment, disconnect power and lockout. More than one
disconnect may be required to de-energize unit. Prior to operating the fans
Check, Test and Start Procedures on page 125
.
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
mount 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 102: Spring Mounts