ROOF CURB
‘‘A’’ UNIT SIZE
ACCESSORY
389028 203
149
548C090 & 120
[356]
389028 204
249
[610]
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 1220 mm (4 ft) on each
side.
7. Direction of airflow.
SERVICE PLATE SIZES
CONNECTOR PKG.
ACY.
Unit Size ‘‘F’’ Power ‘‘G‘‘ Control
548C090 & 120
19 [25] NPT or
3
⁄
4
9 [19] NPT 389004 203
29 [51] NPT
Fig. 4 — Roof Curb
—4—
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