9
2-1/64 (55)
51/64 (21)
4-1/4 (108)
2-3/4 (70)
NOTE
: Dimensions in ( ) are in mm
C12036
Fig. 5 -- Enthalpy Control Sensor, Dimensions and
DIP Switch Location
Table 6 – Enthalpy Control Sensor Wiring Terminations
a
Terminal
Type
Description
Nbr
Label
1
S---BUS
S---BUS
S---Bus Communications
(Enthalpy Control Sensor Bus)
2
S---BUS
S---BUS
S---Bus Communications
(Enthalpy Control Sensor Bus)
a Terminals are polarity insensitive.
Table 7 – Enthalpy Control Sensor DIP Switch Settings
Use
DIP Switch Positions for Switches 1, 2, & 3
1
2
3
DA
a
OFF
ON
OFF
RA
b
ON
OFF
OFF
OA
c
OFF
OFF
OFF
a DA = Discharge Air
b RA = Return Air
c OA = Outside Air
Install Outside Air Hood — Factory Option
The outside air hood for factory--option economizer is
shipped in knock--down form and requires field assembly.
See the base unit Installation Instructions for details on
assembling and attaching the outside air hood.
15 to 25 Ton Horizontal Return Application with
Barometric Relief
If barometric relief is required remove the relief damper
and hinges from the (provided) bottom panel used on
vertical applications. Reinstall the hinges and damper on
the side of the field supplied return duct. (see Fig. 6)
NOTE
: A relief hood for horizontal application can be
ordered separately (part number CRBARHOD001A00) or
can be field--supplied.
Outdoor Air
Hood
CRBARHOD001A00
Relief Hood
Ordered Separately
Field Supplied
Return Duct
Relief Damper
C09343
Fig. 6 -- Reinstall Hinges and Damper on Return Duct
LLECO
N
--
01
S
I
