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

DIAMETER 7/8" HOLE
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
Ow Oltage OntrOl
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 (hole entrance locations). 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.
DIAMETER 3/8" HOLE
w
iring

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
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 external trap must be installed for proper condensate
drainage.
DRAIN PLUG
(FACTORY-INSTALLED)
Base Rail
Open Vent
2" Min
Trap should be deep enough to offset maximum
Unit difference. A minimum 4" trap is recommended.
Install condensate drain trap as shown. Use 3/4" drain line
and fittings or larger. Do not operate without trap.
9
OnneCtiOn
See NOTE
Drain Plug
Drain Connection
STANDARD
SIDE DRAIN
Roof Curb