/ Operation /
Deicing
If the temperature/water level sensor assembly becomes encased in ice the heaters will not operate. Ice provides inadequate conductivity for the sensor probe to detect operational water level. To operate heaters in this situation and melt the ice follow these procedures.
1.Disconnect power to the control panel using standard lockout proce- dures for safety.
2.Remove the panel cover.
3.Install a jumper wire between relay terminals G1 and
Figure 3.
Figure 3
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| JUMPER |
SOLID STATE RELAY CARD |
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CT |
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| G2 | RED |
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| BLK | ||
120 N |
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| T1 T2 G1 | |
| RED GREEN | RED | ||
COM | BLK | |||
24 240 | NC NO |
| SH | SHIELD |
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PROBE
BASIN
Caution
4.Replace panel cover.
5.Energize the system and listen for contactor closing.
6.Operate the system until ice is melted around the sensor probe.
7.After ice is melted,
Do not leave the heating system unattended during this procedure. There is no low water protection with this jumper in place.
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