Overview of Primary Product

Radiant Ready 30E Installation Guide
27
Troubleshooting (continued)
Issue Cause Solution
High pressure 1. Too much system pressure
at startup
2. Incorrect auto fill setting
3. Heater malfunction
1. After filling and purging, the pressure was set above designed pressure
level. Drain some fluid out of the system to obtain designed pressure
level. Note: Differences in temperature may cause the system pressure
to rise slightly after startup.
2. The auto fill valve needs to be set at designed system pressure. Make
sure auto fill valve is set correctly and below 30 psi (this is the relief
pressure of the T&P relief valve).
3. If the heater malfunctions and heats the water above 212°F (100°C),
the water will boil and create steam. This will cause the system
pressure to raise and eventually force the T&P relief valve to open.
If this happens, disconnect power to the unit and contact Uponor
Technical Services.
[e-mail]
888.594.7726 (U.S.)
888.994.7726 (Canada)
Abnormal
pump noises
1. Cavitation (gurgling)
2. Squealing
1. If hearing cavitation (a gurgling sound), this indicates all air was
not purged and is trapped in the pump volute. Perform another fill
and purge procedure. Note: Close all loops before starting the fill
(this will prevent air from entering the loops, requiring only the unit
to be purged).
2. If hearing a squealing sound from the pump, replace the pump or
pump cartridge.
Too hot 1. Thermostat setting is too high
2. Boiler temperature setting is
too high
3. Faulty control
1. If the room is too hot and the thermostat is still calling for heat,
lower the thermostat to a lower temperature and see if the temperature
drops to a more reasonable setting.
2. If the floor/room is too hot, the water temperature may be too
high, causing damage to the flooring, substrate or boiler. Lower the
water temperature and see if the room temperature drops to a more
reasonable setting. Warning: Excessively high temperatures may
cause cracking in overpours and concrete.
3. If the room is too hot and the thermostat/controller is not calling for
heat, there may be an error in the way the controls are wired to the
unit or the controller is damaged.
Breakers trip 1. Incorrectly sized breaker
2. Wired incorrectly
3. Faulty wiring
1. Check to make sure the breaker is appropriately sized for the load of
the unit. Radiant Ready 30E requires 240V power supply. Check with
a qualified electrician for proper sizing.
2. Make sure the unit is wired correctly. Crossed wires can short out the
wire and cause the breaker to trip.
3. Check to make sure the wire is appropriately sized for the load of the
unit. Radiant Ready 30E requires 240V power supply. Check with a
qualified electrician for proper sizing.