Specifications

TM013 Vulcan Electric Service Instructions REV: D
D.O.I.: 05/09
This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”
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Element Test
EWT Thermostat
ST Thermostat
Using a multimeter set on the resistance scale, measure across the element wires.
Normal resistance for the heating unit is:
1.2kW: 43-53Ω; 1.5kW: 35-42Ω; 1.8kW: 29-35Ω; 2.4kW: 22-26Ω; 3.0kW: 17-21Ω; 3.6kW:
15-17Ω; 4.8kW: 11-13Ω; 6.0kW: 9-11Ω.
Resistance Test
Using a multimeter set on the x1 resistance
scale, measure between active and neutral
on the terminal block.
Normal resistance when the thermostat
contacts are closed is:
1.2kW: 43-53Ω; 1.5kW: 35-42Ω;
1.8kW: 29-35Ω; 2.4kW: 22-26Ω;
3.0kW: 17-21Ω; 3.6kW: 15-17Ω;
4.8kW: 11-13Ω; 6.0kW: 9-11Ω.