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4
TO ENSURE AIRTIGHT CONNECTION.
PLACE UNIT AS CLOSE TO THIS
END AS POSSIBLE
TO ENSURE AIRTIGHT CONNECTION.
PLACE UNIT AS CLOSE TO THIS
END AS POSSIBLE
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 CRBTMPWR001A00 and
002A00 are for thru-the-curb type gas. Packages
CRBTMPWR003A00 and 004A00 are for thru-the-
bottom type gas connections.
CONNECTOR
PKG. ACCY.
BC
D ALT
DRAIN HOLE
GAS POWER CONTROL
CRBTMPWR001A00
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]
CRBTMPWR002A00 1
1
/
4
″ [31.7]
CRBTMPWR003A00
1
/
2
″
[12.7] NPT
3
/
4
″ [19] NPT
1
/
2
″
[12.7]
CRBTMPWR004A00
3
/
4
″
[19] NPT
1
1
/
4
″ [31.7]
ROOF CURB
ACCESSORY
A UNIT SIZE
CRRFCURB001A00
1′-2″
[356]
48/50HJ
004-007
CRRFCURB002A00
2′-0″
[610]
Fig. 3A — Roof Curb Details (48/50HJ004-007 Section Only)