Coway CHP-671R/L, Руководство по обслуживанию, Страница: 42 / 74

Fault diagnosis
4-10 Coway co., Ltd

HOT control function (heater control)
Function Explanation
1.
Heater control
function
• If the HOT selection switch is ON, the heater is controlled according to water level
and hot water temperature.
- Heater ON temperature: 80 °C (26.13 kΩ): revision (previously 84 °C)
- Heater OFF temperature: 94 °C (16.302 kΩ)
• HOT selection switch ON
- The HOT function is selected if the HOT selection switch is pressed briefly
(200 ms or more).
- Heater output is controlled according to water level and hot water temperature
after the HOT selection switch is ON for 1 second.
- The heater only operates if low water level is detected. The heater does not
operate if there is a water level sensor error or low water level is not detected.
- FND display status
→ H1 always kept ON, H2/H3 ON/OFF control according to hot water
temperature
• HOT selection switch OFF
- The HOT function is turned off if the HOT selection switch is pressed and held
(1s or more).
- Heater output is turned OFF after the HOT selection switch is OFF.
- FND display status
→ H1/H2/H3 kept off
• FND display control specifications according to hot water temperature are as
follows.
- ON/OFF control specifications according to the HOT segment's temperature are
as follows.
HOT Segment ON OFF
H3 94 °C (16.302 kΩ) 80 °C (26.13 kΩ)
H2 79 °C (27.06 kΩ) 74 °C (32.292 kΩ)
H1 Always ON
- Temperature detection range: 1.2 MΩ ~ 13 kΩ