Circulating Air And Filters; Condensate Drain Connection; Startup, Adjustments, And Checks - Daikin DBC Series Installation Instructions Manual

CIRCULATING AIR AND FILTERS

D
UCTWORK
The supply duct from the unit through a wall may be installed
without clearance. However, minimum unit clearances must be
maintained (see "Clearances" section). The supply duct should be
provided with an access panel large enough to inspect the air
chamber downstream of the heat exchanger. A cover should be
tightly attached to prevent air leaks.
Ductwork dimensions are shown in the roof curb installation
manual.
If desired, supply and return duct connections to the unit may be
made with flexible connections to reduce possible unit operating
sound transmission.

CONDENSATE DRAIN CONNECTION

C D C
ONDENSATE RAIN ONNECTION
A 1" female NPT drain connection is supplied on the end of the
condensate pan, with an alternative connection on the bottom of
the pan. An external trap must be installed for proper condensate
drainage
DRAIN PLUG
(FACTORY-INSTALLED)
Drain Pan (Side View)
Base Rail
Open Vent
2" Min
NOTE: Trap should be deep enough to offset maximum
unit static difference. A minimum 4" trap is recommended.
DRAIN CONNECTION
Install condensate drain trap as shown. Use 1" drain line and fittings
or larger. Do not operate without trap.
See NOTE
Drain Plug
H D
ORIZONTAL
Drainage of condensate directly onto the roof may be acceptable;
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.
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 cleaning is
necessary to prevent this build-up from plugging the drain.

STARTUP, ADJUSTMENTS, AND CHECKS

HIGH VOLTAGE!
T
O AVOID PERSONAL INJURY OR DEATH DUE TO
ELECTRICAL SHOCK
THE BUILDING ELECTRICAL GROUND BY USE OF THE
GROUNDING TERMINAL PROVIDED OR OTHER
ACCEPTABLE MEANS
SERVICING OR INSTALLING THIS UNIT
P -S I
RE TARTUP
T
O PREVENT PROPERTY DAMAGE OR PERSONAL INJURY
START THE UNIT UNTIL ALL NECESSARY PRE
STANDARD
HAVE BEEN PERFORMED
SIDE DRAIN
Prior to the beginning of Startup, Adjustments, and Checks
procedures, 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 replaced,
the operation of the unit must be checked.
Roof Curb
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 obstructions in
or near the blower motors. Duct covers must be removed before
operating unit.
10
RAIN
WARNING
,
B OND THE FRAME OF THIS UNIT TO
. D
ISCONNECT ALL POWER BEFORE
.
NSTRUCTIONS
CAUTION
.
WARNING
.
, D
O NOT
-
CHECKS AND TESTS
,
DISCONNECT
"OFF"
POSITION BEFORE