Instructions / Assembly

191 E. North Avenue
Carol Stream, IL 60188
www.invensyscontrols.com
©2009 Invensys Controls
For Technical Service:
Telephone 1.800.445.8299
Facsimile 1.630.260.7243
technicalservice@invensys.com
Invensys
®
and Robertshaw
®
are trademarks of Invensys plc., its subsidiaries and/or affi liated
companies. All other brands mentioned in this document may be the trademarks of their
respective owners.
5/09 – 150-2197
Testing the Ignitor
Perform a simple room temperature resistance (RTR) test after installing a new ignitor. (Remember to
disconnect the leads to ensure that only the resistance of the ignitor is measured.) If the RTR is not to
specifi cation (see Ignitor Specifi cations, below), the silicon carbide tip is cracked.
Perform an RTR test when troubleshooting an appliance where the ignitor is suspect. While the RTR
will be higher on a used ignitor, the resistance should be no more than double the original resistance
at installation.
Observe the ignitor during heat up. If a bright white line across one of the ignitor legs is detected, a
crack may exist that could cause premature failure. Allow the ignitor to cool, then perform an RTR
test.
Additional signs of a crack are an “open” ignitor or a buildup of white silica dust around the bright
spot. Replace the ignitor if you see these cracks.
Maximum ambient temperature of wire/element connection within block is 905°F/485°C when 450°C
wire is used.
Caution should be exercised to assure temperature does not exceed the
recommended maximums.
Ignitor Specifi cations
Market and Ignitor
Model Number
Time
Temperature
Temperature Range Steady State Current Cold
Resistance
Heating
201
34 seconds Minimum 1800°F/985°C @ 102V
Maximum 3100°F/1705°C @ 132V
Typical 2400-2600°F / 1315°C-1430°C @ 120V
4.25-4.75 Amps @ 132V 45-400 Ohms
Heating
271
17 seconds Minimum 1800°F/985°C @ 102V
Maximum 3100°F/1705°C @ 132V
Typical 2400-2600°F / 1315°C-1430°C @ 120V
4.25-4.75 Amps @ 132V 40-75 Ohms
Heating
601
5 seconds Minimum 1800°F/985°C @ 102V
Maximum 2875°F/1580°C @ 132V
.4-1.0 Amps @ 120V 50-300 Ohms
Dryer
101
Typically 30
seconds
Minimum 1800°F/985°C @ 80V
Maximum 3100°F/1705°C @ 132V
Typical 2400-2800°F / 1315°C-1540°C @ 120V
Maximum 5.0 @ 132V 40-400 Ohms
Range
501
Maximum 2650°F/1455°C @ 116V
3.2-3.6 Amps @ 116V 50-400 Ohms