Startup, Adjustments, And Checks - Daikin DCC Series Installation Instructions Manual

H D
OrizOntal rain
Drainage of condensate directly onto the roof may be accept-
able; (refer to local code). It is recommended that a small
drip pad of either stone, mortar, wood or metal be provided
to prevent any possible damage to the roof. When using the
horizontal drain connection, check the drain plug in bottom
connection to ensure it is tight.
v D
ertiCal rain
To use the bottom drain connection, remove the drain plug
from the bottom connection and install it in the horizontal
connection.
C
leaning
Due to the fact that drain pans in any air conditioning unit
will have some moisture in them, algae and fungus will
grow due to airborne bacteria and spores. Periodic clean-
ing is necessary to prevent this build-up from plugging the
drain. Cleaning agent must be chlorine-free.

STARTUP, ADJUSTMENTS, AND CHECKS

HIGH VOLTAGE!
T
O AVOID PERSONAL INJURY OR DEATH DUE TO
,
ELECTRICAL SHOCK B OND THE FRAME OF THIS UNIT TO
THE BUILDING ELECTRICAL GROUND BY USE OF THE
GROUNDING TERMINAL PROVIDED OR OTHER
. D
ACCEPTABLE MEANS ISCONNECT ALL POWER BEFORE
SERVICING OR INSTALLING THIS UNIT
P -s i
re tartuP nstruCtiOns
T
O PREVENT PROPERTY DAMAGE OR PERSONAL INJURY
START THE UNIT UNTIL ALL NECESSARY PRE
.
HAVE BEEN PERFORMED
Prior to the beginning of Startup, Adjustments, and Checks
procedures, the following steps should be completed in the
building.
Prior to the beginning of Starup, Adjustments, and checks
proceudres, the following steps should be completed in the
building.
MOVING MACHINERY HAZARD!
T
O PREVENT POSSIBLE PERSONAL INJURY OR DEATH
POWER TO THE UNIT AND PADLOCK IN THE
.
SERVICNG FANS
H s
eating tartuP
On new installations, or if a major component has been re-
placed, the operation of the unit must be checked.
Check unit operation as outlined in the following instructions.
If any sparking, odors, or unusual sounds are encountered,
shut off electrical power and recheck for wiring errors, or
WARNING
.
- g
eneral
CAUTION
, D
O NOT
-
CHECKS AND TESTS
WARNING
,
DISCONNECT
"OFF"
POSITION BEFORE
obstructions in or near the blower motors. Duct covers must
be removed before operating unit.
The Startup, Adjustments, and Checks procedure provides
a step-by-step sequence which, if followed, will assure the
proper startup of the equipment in the minimum amount of
time. Air balancing of duct system is not considered part of
this procedure. However, it is an important phase of any air
conditioning system startup and should be performed upon
completion of the Startup, Adjustments, and Checks proce-
dure. The Startup, Adjustments, and Checks procedure at
outside ambients below 55°F should be limited to a readiness
check of the refrigeration system with the required final check
and calibration left to be completed when the outside ambient
rises above 55°F.
t H
emPOrary eating
If the unit is to be used for temporary heating or cooling, a
"Startup, Adjustments, and Checks" must first be performed
in accordance with this manual. Damage or repairs due to
failure to comply with these requirements are not covered
under the warranty. After the machines are used for tempo-
rary heating or cooling, inspect the coils, fans, and motors
for unacceptable levels of construction dust and dirt and
install new filters.
C r
OntraCtOr esPOnsibility
The installing contractor must be certain that:
• All supply and return air ductwork is in place,
properly sealed, and corresponds with installation
instructions.
• All thermostats are mounted and wired in accordance
with installation instructions.
• All electric power, all gas, hot water or steam line
connections, and the condensate drain installation
have been made to each unit on the job. These
main supply lines must be functional and capable
of operating all units simultaneously.
• Air filters are in place.
r C i
OOf urb nstallatiOn
Inspect the roof curb for correct installation. The unit and
curb assembly should be level. Inspect the flashing of the
roof mounting curb to the roof, especially at the corners, for
good workmanship. Also check for leaks around gaskets.
Note any deficiencies in a separate report and forward to
the contractor.
O , f
bstruCtiOns an
Remove any extraneous construction and shipping materials
that may be found during this procedure. Rotate all fans
manually to check for proper clearances and that they ro-
tate freely. Check for bolts and screws that may have jarred
loose during shipment to the job site. Retighten if necessary.
Re-tighten all electrical connections.
f D C
ielD uCt OnneCtiOns
Verify that all duct connections are tight and that there is no
air bypass between supply and return.
10
O C
r OOling
C
HeCk
C w
learanCe anD iring