Panasonic WH-SXC16F9E8 Service Manual

Also see for WH-UX16FE8: Service manual Operating instructions Service manual Design handbook Operating instructions

Contents

Panasonic WH-SXC16F9E8 Service Manual Manual pdf 66 page image

6612.8 Indoor Back-Up Heater Control12.8.1 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 + [-8°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 + [-8°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 condition4 During Heatpump switch to tank side