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3
CONNECTOR
PKG. ACCY.
B
C
D ALT
DRAIN
HOLE
GAS
POWER
CONTROL
CRBTMPWR001A00
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]
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]
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 CRBTMPWR001A00 and
2A00 are for thru-the-curb gas type. Packages
CRBTMPWR003A00 and 4A00 are for thru-
the-bottom type gas connections.
ROOF CURB
ACCESSORY
“A”
UNIT SIZE
50TFQ
CRRFCURB003A00
1
′
-2
″
[356]
008-012
CRRFCURB004A00
2
′
-0
″
[610]
Fig. 2 — Roof Curb Details