Specifications

13
ACCESSORY DIMENSIONS
UNIT
SIZE
551B
“A”
ROOF CURB
ACCESSORY
036-072
1
′
-2
″
[356] CRRFCURB001A00
2
′
-0
″
[610] CRRFCURB002A00
“B”“C”
“D” ALT
DRAIN
HOLE
“E”
GAS
“F”
POWER
CONTROL
CONNECTOR
ACY PKG
1
′
-9
11
/
16
″
[551]
1
′
-4
″
[406]
1
3
/
4
″
[45]
3
/
4
″
[19] NPT
3
/
4
″
[19] NPT
1
1
/
4
″
[31.7]
1
/
2
″
[12.7] NPT
CRBTMPWR001A00
CRBTMPWR002A00
1
/
2
″
[12.7] NPT
3
/
4
″
[19 ] NPT CRBTMPWR003A00
3
/
4
″
[19 ] NPT 1
1
/
4
″
[31.7] CRBTMPWR004A00
NOTES:
1. Roof curb accessory is shipped unassembled.
2. Insulated panels.
3. Dimensions in [ ] are in millimeters.
4. Roof curb: galvanized 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. Connector packages CRBTMPWR001A00 and 2A00
are for thru-the-curb type. Packages CRBTMPWR00300
and 4A00 are for the thru-the-bottom type connections.
Roof Curb — 551B036-072