47
Tranquility
®
Digital (DXM2)—Troubleshooting Guide
Rev.: 10 March, 2015
www.climatemaster.com
Units Having LT1 Lockouts In Heating with
Modulating Valve (Open Loop)
B-L
When running unit in Y1 and Y2, if valve position moves slightly below 50% open, there is a greater impact on GPM.
Putting a pressure-reducing valve ahead of heat pump will prevent valve from moving below 50% open. Set pressure
reducing valve to 30 PSI.
Water Out
Shut Off
Ball Valves
for Isolation
Water In
Well
Tank
Boiler
Drains
Pressure-
Reducing
Valve -
30 PSI
50 - 70 PSI
Typical Household
Pressure for Wells
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