Friedrich ZoneAire Select PZH12K3SC handleiding

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Handleiding

OPERATION

Function and Control

Buttons and Display

1) Buttons

There are ON/OFF, UP, DOWN, HEAT, COOL, CONSTANT FAN and fan speed of HIGH, LOW, AUTO buttons.

1. ON/OFF: Press to turn power on or off to the unit.

2. COOL, HEAT: choose the mode of operation

3. HIGH, LOW, AUTO: choose the fan speed.

4. UP, DOWN: Adjust the setting temperature , default: 60-90°F(16~32°F).

2) Dual 8 Digital Tube Display and LED

Two 8 digital tube and 7 LEDs (ON/OFF, HIGH, LOW, AUTO, HEAT, COOL, CONSTANT FAN)

1. Mode LED display: when the unit is running in a certain mode, the corresponding LED is lit up.

2. ON/OFF LED: at ON status, the LED is lit up.

3. CONSTANT FAN LED: when this function is enabled, the LED is lit up.

4. Fan speed LED: when the unit is running at HIGH, LOW or AUTO fan speed, the corresponding LED is lit up.

5. Dual 8 digital tube display normally, it displays the indoor ambient temperature. When the UP/DOWN button is pressed it displays

the setting temperature. If an error occurs, it displays the ERROR.

CODE (See Troubleshooting Section - Diagnostic Codes).

The LED close to the button indicates the current status (lit up means effective).

Temperature Parameter

Indoor setting temperature (Ts)

Indoor ambient temperature (T1)

System Basic Function

Once the compressor starts, the compressor won’t stop with the change of the indoor temperature. Once the compressor stops, it can only

start after a 3 mins delay. (The compressor can stop immediately at the time of mode switch over, turning off the unit, adjusting setting

temperature and turning off from a function error.)

1) Cooling Mode

Working conditions and process for cooling:

When T1≥Ts+2°F, the unit is running in cooling mode. Meanwhile, the compressor is running and the fan is running at the setting fan speed;

When T1≤Ts-2°F, the compressor is OFF. Meanwhile, the fan will run at the setting fan speed for 15s (CONSTANT FAN OFF); or run at the

setting speed continuously (CONSTANT FAN ON);

When Ts-2 2°F<T1<Ts+ 2°F, the unit keeps previous running status.

2) Heating Mode

Working condition and process for heating:

When T1≤Ts -2°F, the unit is running in heating mode. Heat pump or electric heating will start depending on the ambient temperature

condition or the heating priority setting (#4 DIP SWITCH, ON- for heat pump and OFF-for electric heating).

When T1≥Ts+ 2°F, the heating is turned OFF. Meanwhile, the fan will run at the setting fan speed for 15 sec or 1 minute delay

(CONSTANT FAN OFF) or run at the setting speed continuously (CONSTANT FAN ON).

When Ts-2°F <T1<Ts+ 2°F, the unit keeps at the previous running status.

Electric heater does not work with heat pump at the same time. When T1<41°F (5°C) unit will run the electric heater, when T1≥41°F

the unit will run heat pump.

3) Room Freeze Protection (AUTO HEATING)

This is valid only in standby mode. The dual 8 digital tube displays “L0”.

Entry condition: If #5 DIP SWITCH is set to ON to enable the indoor freeze protection and the main board detects the indoor ambient

temperature lower than 50°F for 3 minutes successively .

Quitting condition: When indoor ambient temperature rises to 55 °F, heating will stop.

4) Temperature Sensor Open Circuit or Short Circuit Protection

If the temperature sensor is an open circuit or a short circuit, the ERROR CODE will display on the digital

tube. If the malfunction of temperature sensor is detected for 30 sec, the unit will turn off.

1) 8 DIP Switch Function

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