Comfort-Aire HTH Series - Manual (Page 47)

47
Installation, Operation & Maintenance HTV/HTD/HTH SERIES Heat Controller, Inc.
Troubleshooting Form
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Look up pressure drop in
I.O.M. or spec. catalog to
determine flow rate.
Look up pressure drop in
I.O.M. or spec. catalog to
determine flow rate.
Note: Never connect refrigerant gauges during startup procedures. Conduct water-side analysis using P/T ports to determine water
fl ow and temperature difference. If water-side analysis shows poor performance, refrigerant troubleshooting may be required. Connect
refrigerant gauges as a last resort.