16
EVAPORATOR RETURN AIR PLENUM, CEP-6
An evaporator return air plenum is available for installa-
tions where it is required to duct air to the inlet of the
evaporator. The evaporator return air plenums allow
the user to connect round duct (flexible or rigid) to the
return air intake to reduce air noise and increase the
number of options for solving difficult cooling problems.
The plenum attaches to the front of the unit, replacing
the return air grill.
The CEP-6 transitions the return air opening to (2)
6-inch round ducts. The CEP-6 has space provided for
a 16 X 8 Filter
NOTE—When a evaporator return air plenum is installed, it is recommended to set
the evaporator blower speed to high, to avoid evaporator freeze-up.
ACCESSORIES—CONT’D
CONDENSER RETURN AIR PLENUM, CCP-8
A condenser return air plenum is available for installa-
tions where it is required to duct air to the inlet of the
condenser. The plenum easily attaches and is pro-
vided with an 8-inch flange for connecting 8-inch flexi-
ble ducting. The CCP-8 has space for a 16 X 14
filter.
NOTE — When installing the condenser return air
plenum with the ceiling panel kits, allow for a
minimum separation distance of 2 feet between
the unit discharge duct and the return air duct(s).
It is also recommended to direct the condenser
discharge air away from the condenser return air
ducts.
9
INSTALLATION—PERMANENTLY CONNECTED
The CAC1211 power cord may be removed and the unit be permanently connected to a
power source for applications where desired. Once the CAC1211 is installed and se-
cured for a stationary installation, the unit can be permanently wired.
1. Remove the left side panel and locate the power cord and strain relief at the lower
left side.
2. Disconnect the power cord from the ground lug and terminal strip.
3. Remove the power cord and the strain relief.
4. Install 1/2” conduit and a UL recognized bushing through the 7/8” diameter hole,
and secure.
5. Three (3) conductors, a minimum of 14 AWG, are required for LINE, COMMON
and GROUND can then be connected to the unit, and then be connected to a
115 VAC, Single Phase, 60 Hz, that is rated at 15 A
USE COPPER CONDUCTORS ONLY
LCDI
POWER
CORD
LEFT SIDE
PANEL
CORD STRAIN
RELIEF
CAC1211
COMMON
LINE
GROUND
LUG
7/8” DIA.
CONTROL BOX - FIELD WIRING
