aquatherm AT800 Manuale operativo del proprietario - Pagina 6
Sfoglia online o scarica il pdf Manuale operativo del proprietario per Riscaldatore per piscina aquatherm AT800. aquatherm AT800 12. Swimming pool & spa heat pumps
“black cabinet” with analog controls series only
Anche per aquatherm AT800: Manuale di installazione (16 pagine), Manuale di installazione (8 pagine)
Stampa la pagina7. SPA HEATING
When heating a spa it is advisable to not run the air blower or air inlet venturis during
the initial heat up time. Air blowers and venturis inject air into the water to create the
spa therapy action. During colder weather the air blower or inlet venturis will inject
cold air into the spa thus increasing heat demand. Leaving these items off until the spa
reaches the set temperature will reduce the heat up time. A cover is highly suggested
for spa heating.
8. DEFROST CONTROL or FAULT MODE IN COLD WEATHER
The defrost control will keep the unit from running when the outside air temperature
drops below the heaters operating range. NOTE: During cold weather where the air
temperature drops below approximately 45˚F to 50˚F (depending on humidity), the
low refrigerant pressure switch (or defrost control), is designed to disable the heater.
In this "defrost mode" the fan and compressor will shut off. When the defrost switch
resets for whatever reason the fan will restart, then after a 5 to 7 minute time delay the
compressor will attempt to restart. During borderline air temperature ranges noted above
the hater may cycle on & off in an attempt to reset. The defrost control may trip and
reset at different temperatures since it is effected by humidity and actual refrigerant
pressure inside the heat pump system. The heater should be shut off when the air
temperature is expected to drop below the operational range for an extended period.
You my experience some frost or icing on the outer air coil in cold weather tempera-
tures and is considered normal. If the air coil ices up, shut the heater off, allow it to
defrost and wait for warmer weather to restart the heater. If you live in an area where
the weather is expected to drop below 45˚F to 50˚F for an extended period, disable
the heater during those times.
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