Chromalox PF497-1 Electric Heater User Manual


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2150 N. RULON WHITE BLVD., OGDEN, UT 84404
Phone: 1-800-368-2493 www.chromalox.com
RENEWAL PARTS IDENTIFICATION
PARTS COMMON TO ALL UNITS
Description Part No.
Wheels 333-557518-004
Grille 134-304780-002
Thermostat 300-304782-001
Thermal Cut-out 300-048038-003
Fan Relay (not used on
072-123534-057
208 and 240V Models)
Element MotorFan ContactorControl
Model No. Volts kW Phase Part No. Part No. Part No. Part No. Trans/
DRA-07-83 208 7.5 1 and 3 118-304793-001 072-304551-014 ———
DRA-07-23 240 7.5 1 and 3 118-304793-002 072-304551-014 ———
DRA-10-83 208 9.75 1 and 3 118-304793-003 193-302120-009 072-304551-014 ———
DRA-10-23 240 9.75 1 and 3 118-304793-004 072-304551-014 ———
DRA-15-83 208 15 3 118-304793-007 072-304551-014 ———
DRA-15-23 240 15 3 118-304793-008 072-304551-014 ———
DRA-15-43 480 15 1 and 3 118-304793-009 193-302120-012 072-304551-008 315-304252-001
DRA-15-93 600 15 1 and 3 118-304793-010 193-302120-015 112-045422-007 072-304551-008 315-304252-003
DRA-20-23 240 19.5 3 118-304793-004 193-302120-009 072-304551-014 ———
DRA-20-43 480 20 1 and 3 118-304793-005 193-302120-012 072-304551-008 315-304252-001
DRA-20-93 600 20 1 and 3 118-304793-006 193-302120-015 072-304551-008 315-304252-003
DRA-30-43* 480 30 3
118-304793-011a
193-302120-012 072-304551-008 315-304252-001
118-304793-013b
DRA-30-93* 600 30 3
118-304793-012a
193-302120-015 072-304551-008 315-304252-003
118-304793-014b
MAINTENANCE
30 kW units contain two sets of three elements (six total). The ratings of the three elements on the discharge end have a lower wattage than the elements on the fan end of
heater. The ends of the elements are color coded, the lower wattage are color coded yellow and the higher wattage are color coded blue.
a. Lower wattage elements, discharge end, yellow coded
b. Higher wattage elements, fan end, blue coded
ELECTRIC SHOCK HAZARD. Disconnect heater
from power supply before servicing and/or inspect-
ing the heater; failure to do so may result in elec-
trical shock.
Replace or repair damaged cords or plugs immediately. Check
tightness of all electrical connections prior to energizing Dragon.
Blow out or vacuum away any dirt or debries that may have accu-
mulated around the control enclosure fan motor or heating ele-
ments.
Limited Warranty:
Please refer to the Chromalox limited warranty applicable to this product at
http://www.chromalox.com/customer-service/policies/termsofsale.aspx.
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