Specifications

14
ACCESSORY DIMENSIONS (cont)
UNIT SIZE
551B
“A”
ROOF CURB
ACCESSORY
090-150
1
′
-2
″
[356] CRRFCURB003A00
2
′
-0
″
[610] CRRFCURB004A00
UNIT SIZE
551B
“B”“C”
“D” ALT
DRAIN
HOLE
“E”
GAS
“F”
POWER
“G”
CONTROL
CONNECTOR
ACY PKG
090-150
2
′
-8
7
/
16
″
[827]
1
′
-10
15
/
16
″
[583]
1
3
/
4
″
[44.5]
3
/
4
″
[19]
NPT
1
″
[25] NPT
3
/
4
″
[19]
NPT
CRBTMPWR001A00
—
1
″
[25] NPT or
2
″
[50.8] NPT
CRBTMPWR002A00
NOTES:
1. Roof curb accessory is shipped disassembled.
2. Insulated panels. 1 in. thick polyurethane foam, 1
3
/
4
in.
density.
3. Dimensions in [ ] are in millimeters.
4. Roof curb: 16 gage steel.
5. Attach ductwork to curb (flanges of duct rest on curb).
6. Service clearance 4 ft on each side.
7. Direction of airflow.
8. Place unit as close to edge of curb as possible.
Roof Curb — 551B090-150