Panasonic U-8ME1E8 Installation Instructions Manual

Also see for U-10ME1E8: Instruction manual Service manual Operating instructions Installation instructions

Contents

Panasonic U-8ME1E8 Installation Instructions Manual Manual pdf 41 page image

407-2. Test Run Procedure*1*2*3 *3*2Items to Check Before the Test Run1. Turn the remote power switch on at least 5hours before the test, in order to energize thecrankcase heater.2. After performing the leak inspection, applyingvacuum, and performing refrigerant charge forthe tubing which is connected on-site, fully openthe outdoor unit service valve. However if onlyone outdoor unit is installed, a balance tube isnot used. Therefore, leave the valve fully closed.3. When replacing the control PCB, be sure thatthe settings on the new PCB match those on theold PCB.4. Use caution when making the settings. If thereare duplicated system addresses, or if thesettings for the Nos. of the indoor units are notconsistent, an alarm will occur and the systemwill not start.5. These settings are not made on the indoor unitPCB.Fig. 7-3Recheck the items to check before the test run.Have the outdoor subunits been connected?Set the unit address.Set the No. of outdoor units.Set the No. of indoor units.YESYESSet the system address.When multiple outdoor main units exist, disconnect theterminals extended from the shorted plugs (CN072) atall outdoor main unit PCBs except for 1. Alternatively,move the sockets to the OPEN side.Are the inter-unit controlwires connected to more than 1refrigerant system?Is it possible to turn ON thepower only for the 1 refrigerant system wherethe test run will be performed?Will automatic address setting beperformed in Heating mode?Is it OK to start thecompressors?Is it OK to startthe compressors?Turn ON the indoor andoutdoor unit power.Short-circuit the cooling side of themode change pin (CN085) on theoutdoor main unit PCB.At the same time, short-circuit theautomatic address pin (CN054) for 1second or longer, then release it.Short-circuit the automaticaddress pin (CN054) on theoutdoor main unit PCB for 1second or longer, then release it.Note: It is not necessary to removethe socket that is used to short-circuit the terminal plugs fromthe outdoor sub unit PCBs.Start indoor and outdoor unitheating operation.LED 1 and 2 blink alternately.Start indoor and outdoor unitcooling operation.LED 1 and 2 blink alternately.Are LEDs 1 and 2 on theoutdoor unit PCB OFF?Turn ON the indoor andoutdoor unit power.CASE 3BCASE 2Make necessarycorrectionsMake necessarycorrections.Turn OFF the indoorand outdoor unitTurn OFF theindoor and outdoorunit power.Check the alarmcontents.Check the alarmcontents.*2 A minimum of 5 hours must havepassed after the power was turned ONto the outdoor unit.*3 All indoor units operate in all refrigerantsystems where the power is ON.Refer to “Table ofSelf-Diagnostic Functions andDescription of Alarm Displays.”Are LEDs 1 and 2 on theoutdoor unit PCB OFF?LED 1 and 2 blink alternately(about 2 or 3 minutes).Short-circuit the automaticaddress pin (CN054) on theoutdoor main unit PCB for 1second or longer, then release it.Turn ON the indoor and outdoorunit power for that refrigerantsystem only.CASE 1*1The unit with theunit No. set to 1is the main unit.All other unitsare sub units.CASE 3ANONORefer to Fig. 7-4(Check the link wiring.)Unit No. setting switch(S004 and S005)Unit No. setting switch (S006)Unit No. setting switch (S007)Unit No. setting switch(S002 and S003)NONONOYESNONOYESYESCheck that test run preparation is OK.(Do not allow the short-circuited pins to remain short-circuited.)Set the wired remote controller for test run.Refer to theremote controllertest-run settings.Check and make corrections accordingto “Table of Self-Diagnostic Functions.”Does systemoperate?Return remote control to normal modeEnd test run.YESYES