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Installation, Operation & Maintenance	HTV/HTD/HTH SERIES	Heat Controller, Inc.
Troubleshooting Form
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Note: Never connect refrigerant gauges during startup procedures. Conduct water-side analysis using P/T ports to determine water

flow and temperature difference. If water-side analysis shows poor performance, refrigerant troubleshooting may be required. Connect refrigerant gauges as a last resort.

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