Last seen: Nov 23, 2025
@trebor12345 @jamespa If it helps any this documentsays the Hitachi RAS-3WHVRP1 can modulate down to 2.1kW at 7C OAT and 35C flow temp. So another ...
Hi David, If your Mitsi is still on weather compensation then the WT60 should act as an internal temperature limiter. The temperature it's set to i...
Hi David We have an FTC7 but the settings seem to be similar to an FTC6. Our room sensor settings are: Zone sensor selection sets zone 1 to RC1 ...
This might be useful for @bart From/p> "Warning: It is vital that the system does not cycle on and off repeatedly as this will lead to excessive w...
Hi @m1kegibson Maybe a long shot but is the controller in holiday mode? There would be a suitcase symbol towards to top left of the screen if it is...
@carpenterstation When changing settings in the service menu you often need to shutdown the system first, so if it's running it'll ask you if it's...
@carpenterstation If you don't want to use summer mode then you could slide the zone set temperature sliders to their minimums in MELCloud to turn o...
@gary The FTC6 and FTC7 both have summer mode.
Mitsubishi have a setting called summer mode for this. It's in the service menu under Operational Settings. There are settings for switching summer mo...
Given that in an area there will be ASHPs from various manufacturer with various defrost algorithms and each with a different heating load, the likeli...
@heatgeek The flow rate isnt controlled by Mitsubishi, the installers said 16-20 l/min was fine. Experimenting I've found 16 l/min to be a good ...
@heatgeek The switches to the flow rate were manual and just experiments, the system should work fine at 15-16 l/min if not for the condensate is...
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