Chromalox PF421-6 Electric Heater User Manual


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THERMOSTAT REPLACEMENT PROCEDURE
Thermostat Kit (168-073659-001)
Item
No. Qty. Part No. Description
1 1 300-072275-007 Thermostat
2
1 027-073304-002 Bracket — Mounting
3
2 248-048179-020 Screws
4
1 220-072276-003 Plate-Dial Thermostat
5
1 169-073294-001 Knob
6
1 056-073305-001 Clamp — Capillary Bulb
1
2
3
4
5
6
See Instruction #4
See Instruction #1
Thermostat Replacement Instructions:
1. Remove cover.
2. Slide thermostat mounting bracket over existing plate.
3. Using item 3 (screws) assemble item 1 (thermostat) to item 2 (bracket).
4. Remove bolt and assemble item 6 capillary clamp and capillary bulb and
re-install bolt. Note: Do not pinch bulb in clamp, thermostat decalibration
will result.
5. Assemble item 4 (plate) and item 5 (knob).
6. Re-install cover.
RENEWAL PARTS IDENTIFICATION
Heating Elements
Front Terminal Thermostat Kit
Model Watts Cover 120V 240V Block (See Below)
EH-1221 250 080-016362-002 285-051049-001 285-051049-002
EH-1251 500 080-016362-002 285-051049-001 (2) 285-051049-002 (2)
HVT-1251 500 080-016362-003 285-051049-006 303-047610-005 168-073659-001
HVT-2411 1000 080-016362-003 285-051049-006 (2) 303-047610-005 168-073659-001
Note: Part numbers suffixed by a number in ( ) indicates the quantity of same part number used.
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