Hitachi YUTAKI Series - Page 163

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Test run procedure for Yutaki
SMGB0066 rev.0 - 12/2009
Test run
Service Manual
6
 
Oncethesystemhasbeeninstalled,itisrecommendedthatthefollowingtestsarecarriedout:
Checkthatyouhaveselectedthecorrectconguration,andthatthenecessaryinstallationparametershavebeenset.1.
Check the wiring of the inputs and outputs. Use the procedure in 7.3 to view the temperature sensor values. It is possible 2.
to manually override the outputs to test the system operation.
CheckthattheRoomUnitiscommunicatingwiththeRFReceiver.Todothis,changethetemperaturesetpointonthe3.
Room Unit to the maximum or minimum value and check that the heat pump reacts appropriately.
 
The table below shows the values that are available to be viewed during Normal Operation mode. These can be shown by
pressing the
button
   
Sensor
Temperatures
TEXT Outdoor temperature °C 12345
TSUP Supply water temperature °C 12345
TMIX Zone1: Mixed supply temperature °C ---45
TRET Return temperature °C 12345
TDHW DHW temperature °C 123-5
TR1 Room temperature °C 12345
V Mixing valve position - ---45
FAUL Fault status - 12345
Controller
Setpoints
SSUP Overall system supply setpoint °C 12345
S1 Zone1: supply setpoint °C 12345
SR1 Zone1: room setpoint °C 12345
S2 Zone2: supply setpoint °C 12345
DSET DHW setpoint °C 123-5
SDHW DHW supply setpoint °C 123-5
Normal Operation mode