25
Frequently Asked Questions
Filter:
Q:
Why is there a filter?
A:
In Hybrid and Heat Pump (Only) the unit moves air through the system. The filter protects the unit from dirt and debris. A
clean air filter improves efficiency.
Q:
How do I clean the filter?
A:
Leave the power ON and remove filter from top of unit. The filter can be vacuumed clean or rinsed with warm water. Once
cleaned, reset the alarm by pressing and holding the FILTER button. A dirty filter will reduce water heater efficiency.
Modes:
Q:
What is “Heat Pump (Only)”?
A:
Heat Pump (Only) is the
most
efficient mode. It takes heat from the air to heat water, cooling the surrounding air. It has
slower recovery but is the
most
efficient mode.
Q:
What is “Hybrid”?
A:
Hybrid Mode combines benefits of Heat Pump (Only) with the speed and power of Standard Electric. This provides great
performance with less energy.
Q:
What is “Vacation” Mode?
A:
If you are gone for an extended period, this mode lowers the water temperature to reduce energy used. Unit will switch to
the previous mode one day before you get back.
Q:
What is “Electric (Only)”?
A:
Electric (Only) mode uses only the resistance heaters to heat the water. This gives faster hot water recovery than Hybrid
mode but uses more energy. This mode operates without the fan, stopping the cool air normally discharged during heat
pump operation.
Q:
Why does the Electric (Only) green LED flash?
A:
In this mode, the green LED light will flash after 48 hours as an indication that the unit is NOT operating in the most energy
efficient mode.
Operation:
Q:
Why can I hear the unit run?
A:
In the most energy-efficient models, Heat Pump (Only) and Hybrid, the method used to heat the water used a fan that
can be heard while running.
Q:
The heat pump is not running its normal length of time. What causes this?
A:
Under some conditions, the water heater will operate using the electric elements instead of the heat pump to protect
your unit and ensure hot water is available to you. These conditions include extreme cold ambient temperature
(<35°F), extreme hot ambient temperatures (>120°F), or very low voltage conditions. The unit will return to normal
operation when conditions permit.
Q:
Why does the water heater display a number other than the temperature setpoint at startup or following a power loss?
A:
During commissioning, a self-test countdown number will be displayed indicating the time remaining before the unit
begins normal operation. It is heating water during this time.
Q:
Why isn’t the temperature setting always displayed on the temperature setpoint at startup or following a power loss?
A:
The control will only display the temperature setting when a heat source is called for by the system and will turn off
when the heating elements and heat pump are not running. Pressing any button will wake the control and display the
temperature setpoint. The display screen will go blank after a period of inactivity in order to conserve energy.
Q:
Why is one of the operating mode LEDs flashing?
A:
In Hybrid Mode, the Electric (Only) Mode LED will flash anytime the heating elements are active, such as during the
initial recovery from a large draw. In Electric (Only) Mode, the operating mode LED will flash after 48 hours as an
indication that the unit is not operating in the most energy efficient mode. These are both normal conditions and do
NOT
indicate an operating issue.
Содержание RE2H50S 1NCWT Series
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