Circulating Air And Filters; Condensate Drain Connection - Daikin DCC Series Installation Instructions Manual

DIMPLES MARK DRILL LOCATIONS
HIGH VOLTAGE ENTRANCE
10 3/16"
LOW VOLTAGE ENTRANCE
26 ½"
ELECTRICAL ENTRANCE LOCATIONS
Unit is equipped with Single Point Power Block and Low Voltage
Block.
L V C W
OW OLTAGE ONTROL IRING
1. A 24V thermostat must be installed for unit operation. It
may be purchased with the unit or field -supplied.
Thermostats may be programmable or electromechanical
as required.
2. Locate thermostat or remote sensor in the conditioned
space where it will sense average temperature. Do not
locate the device where it may be directly exposed to
supply air, sunlight or other sources of heat. Follow
installation instructions packaged with the thermostat.
3. Use #18 AWG wire for 24V control wiring runs not
exceeding 75 feet. Use #16 AWG wire for 24V control wiring
runs not exceeding 125 feet. Use #14 AWG wire for 24V
control wiring runs not exceeding 200 feet. Low voltage
wiring may be National Electrical Code (NEC) Class 2 where
permitted by local codes.
4. Route thermostat wires from sub-base terminals to the
unit. Control wiring should enter through the duct panel
(dimple marks entrance location). Connect thermostat and
any accessory wiring to low voltage terminal block TB1 in
the main control box.
NOTE: Field-supplied conduit may need to be installed depending
on unit/curb configuration. Use #18 AWG solid conductor wire
whenever connecting thermostat wires to terminals on sub-base.
DO NOT use larger than #18 AWG wire. A transition to #18 AWG
wire may be required before entering thermostat sub-base.
NOTE: Refer to unit wiring diagrams for thermostat hookups.

CIRCULATING AIR AND FILTERS

D
UCTWORK
The supply duct from the unit through a wall may be installed with-
out clearance. However, minimum unit clearances must be main-
tained (see "Clearances" section). The supply duct should be pro-
vided with an access panel large enough to inspect the air cham-
ber 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 3/4" female NPT drain connection is supplied on the end of the
unit and bottom of the drain pan for condensate piping. An exter-
nal trap must be installed for proper condensate drainage.
DRAIN
CONNECTION
UNIT
FLEXIBLE
TUBING-HOSE
OR PIPE
A POSITIVE LIQUID
SEAL IS REQUIRED
Drain Connection
Install condensate drain trap as shown. Use 3/4" drain line and
fittings or larger. Do not operate without trap.
H D
ORIZONTAL RAIN
Drainage of condensate directly onto the roof may be acceptable;
refer to local code. It is recommended that a small drip pad of ei-
ther stone, mortar, wood or metal be provided to prevent any pos-
sible 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 clean-
ing is necessary to prevent this build-up from plugging the
drain.
9
2" MINIMUM
3" MINIMUM