ID.: 17-16-24-3004-02 | 6.2017
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Electric heater
The device is standard fitted with an electrical heater of 1.5 kW which serves as additional or
backup heat source.
Antifreeze sensor
The device’s regulator contains a mechanical thermostat for measuring the temperature of the
evaporator; in case the temperature of the air flowing through the evaporator is lower than +10
°C, it performs a safety shut down of the device until the temperature of the air flowing through
the evaporator r15 °C.
Safety thermostat
The device has a safety thermostat which is set to 90 °C. This means if the water temperature
inside the buffer tank for DHW exceeds this limit, the electrical connection to the device will be
terminated and the device will cease to operate. You have to contact the authorised installer
for a renewed commissioning of the device to check and eliminate the cause of the safety shut
down of the device.
Controlling the water temperature in the buffer tank for DHW
The main mechanical thermostat controls water heating up to the desired temperature.
The main mechanical thermostat switches on or turns off the compressor and fan according to
the desired set water temperature. The operation of the built-in electrical heater can be
manually switched on or off. The maximal temperature setting for heating water is 65 °C.
The minimal water temperature in the buffer tank for DHW is 7 °C.
High-pressure protection for the cooling system
To prevent high pressure in the cooling system and associated damage the device has a built-
in high-pressure safety switch which turns off the device in case of high pressure.
Operating conditions
The temperature of the surroundings in normal operation must be b10 °C and +35 °C.
The air must be clean, the relative moisture at +35 °C must not exceed 50 %. At lower air
temperatures the relative moisture can be higher. With devices installed at high altitudes, lower
air pressure can cause degraded performance of the device.
Summary of Contents for WP2 LF-202B
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