Panasonic WH-ADC0309H3E Service Manual

Contents

Panasonic WH-ADC0309H3E Service Manual Manual pdf 107 page image

10712.6 Indoor Back-Up Heater Control12.6.1 Indoor Electric Heater Control1 Normal Heating Modeo Heater On condition:a. Heater switch is ONb. After Heatpump thermo ON for [30] minsc. After water pump operate [9] minsd. Outdoor air temperature < Outdoor set temperature for heatere. When water outlet temperature < Water set temperature + [-4°C]f. [20] minutes since previous Backup heater Off* When heatpump cannot operate due to error happens during normal operation, heater will go intoforce mode automatic* Heater need to operate during deice operationo Heater Stop Condition:a. When outdoor set temperature > outdoor set temperature + [+2°C] for continuous 15 secs ORb. When water out temp> water set temperature + [-2°C] for continuous 15 secs ORc. Heater switch is Off ORd. Heatpump thermo-off or OFF condition2 Force Heater Modeo Heater On condition:a. After water pump operate [9] minsb. When water outlet temperature < water set temperature + [-4°C]c. [20] minutes since previous Backup heater Offo Heater Stop conditiona. Force mode off ORb. When water outlet temperature > water set temperature + [-2°C] for continuous 15 secs* Do not operate heater at the following situation1 Water outlet temperature sensor, and water inlet sensor abnormal2 Flow switch abnormal3 Circulation pump stop condition12.6.2 Room Heater Operation during DeicePurpose: To protect the indoor Heat Exchanger from ice forming and prevent heat exchanger plate breakage.Control content: This Heater protection control will activate only if the backup heater is enable at custom setup by remotecontroller. Once fulfil the start condition, room heater will turn ON together (base on max heater capacityselection) and stop together if stop condition is fulfilled.* If the heater is request to turn ON OLP feedback will be detected.Starting conditions: During normal deice operation 4~9 Water outlet temperature < 10°C orOutdoor air temperature < -10°C orWater inlet temperature < 27°CHeater operates when 1 ~2 fulfilled OR When 1 and 3 ~ 4 is fulfilled.However, this control does not relate to Heater ON/OFF button on remote control.Stop condition: When normal deice end or Water outlet temperature > 45°CHowever, room heater keeps ON if indoor electric heater control activate.