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ACCESSORY DIMENSIONS (cont)
CONNECTOR
PKG. ACCY.
BC
D ALT
DRAIN
HOLE
GAS POWER CONTROL
ACCESSOR
Y
POWER
CRBTMPWR001A01
2′-8
7
/
16
″
[827]
1′-10
15
/
16
″
[583]
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]
NOTES:
1. Roof curb accessory is shipped disassembled.
2. Insulated panels: 1-in. thick polyurethane foam,
1
3
/
4
lb 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. Connector packages CRBTMPWR001A01 and
2A01 are for thru-the-curb gas type. Packages
CRBTMPWR003A01 and 4A01 are for the thru-
the-bottom type gas connections.
ROOF CURB
ACCESSORY
“A” UNIT SIZE
CRRFCURB003A01 1′-2″ [356]
549B090-120
CRRFCURB004A01 2′-0″ [610]
549B090-120
a50-7349
549B, 549C