back2space
09-04-2010, 10:20 PM
Just wondered if anyone had the service manuals they could send me for the above units. LG technical wont send them out to non engineers.
Having an issue where the MV12AH units will go into whatever fan speed I like in heating mode when the coil temp comes above 32C however on the MS12AH the fan speed only seems to go onto high when the coil goes above 39C which is poor really as with it being a multi split if all 3 are on and only the MS12AH is thermo on the coil never gets hot enough as the compressor is ramped right down and air off is only about 33C so not enough for it to go into high fan speed.
However the MV12AH will go into high fan speed when the coil is at about 32C so full heating can be achieved.
This wall mount unit will never give full output and fan just runs at low speed unless one of the other units reaches thermostat on and then the coil temp goes above 39C allowing the unit to go into high fan speed.
Any help appreciated.
Having an issue where the MV12AH units will go into whatever fan speed I like in heating mode when the coil temp comes above 32C however on the MS12AH the fan speed only seems to go onto high when the coil goes above 39C which is poor really as with it being a multi split if all 3 are on and only the MS12AH is thermo on the coil never gets hot enough as the compressor is ramped right down and air off is only about 33C so not enough for it to go into high fan speed.
However the MV12AH will go into high fan speed when the coil is at about 32C so full heating can be achieved.
This wall mount unit will never give full output and fan just runs at low speed unless one of the other units reaches thermostat on and then the coil temp goes above 39C allowing the unit to go into high fan speed.
Any help appreciated.