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ACCESSORY DIMENSIONS
ROOF CURB
ACCESSORY
A UNIT SIZE
CRRFCURB001A01
1′-2″
[356]
549B, 549C
024-072
CRRFCURB002A01
2′-0″
[610]
NOTES:
1. Roof curb accessory is shipped disassembled.
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 CRBTMPWR001A01 and
002A01 are for thru-the-curb type gas. Packages
CRBTMPWR003A01 and 004A01 are for thru-the-
bottom type gas connections.
CONNECTOR
PKG. ACCY.
BC
D ALT
DRAIN
HOLE
GAS POWER CONTROL
ACCESSORY
POWER
CRBTMPWR001A01
1′-9
11
/
16
″
[551]
1′-4″
[406]
1
3
/
4
″
[44.5]
3
/
4
″
[19] NPT
3
/
4
″ [19] NPT
1
/
2
″
[12.7]
NPT
1
/
2
″
[12.7]
NPT
CRBTMPWR002A01 1
1
/
4
″ [31.7]
CRBTMPWR003A01
1
/
2
″
[12.7] NPT
3
/
4
″ [19] NPT
CRBTMPWR004A01
3
/
4
″
[19] NPT
1
1
/
4
″ [31.7]
549B036-072 AND 549C024-060
a50-7345
549B, 549C