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4-1/4 (108)
2-3/4 (70)
NOTE: Dimensions in ( ) are in mm
Fig. 5 - - Enthalpy Control Sensor, Dimensions and
DIP Switch Location
Table 6 – Enthalpy Control Sensor Wiring Terminations
Terminal
Type
Nbr
Label
1
S--- BUS
S--- BUS
2
S--- BUS
S--- BUS
a
Terminals are polarity insensitive.
Outdoor Air
Hood
CRBARHOD001A00
Relief Hood
Ordered Separately
Relief Damper
Field Supplied
Return Duct
51/64 (21)
2-1/64 (55)
C12036
a
Description
S--- Bus Communications
(Enthalpy Control Sensor Bus)
S--- Bus Communications
(Enthalpy Control Sensor Bus)
Fig. 6 - - Reinstall Hinges and Damper on Return Duct
Table 7 – Enthalpy Control Sensor DIP Switch Settings
DIP Switch Positions for Switches 1, 2, & 3
Use
1
a
DA
OFF
b
RA
ON
c
OA
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.
9
2
3
ON
OFF
OFF
OFF
OFF
OFF
C09343
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