Midea LRSJF-V120

M-thermal technical manual – part 3
Part 3
Test running and maintenance
1 Pre-test and test running ............................................................................................................................................. 2
1.1 Checks before initial start-up ...................................................................................................................... 2
1.2 Powering up the indoor unit ........................................................................................................................ 3
2 Setting the pump speed .............................................................................................................................................. 3
3 Field Settings ................................................................................................................................................................ 3
3.1 Wired controller .............................................................................................................................................. 4
a) The basic controller functions are: ..................................................................................................................... 4
 Turning the unit ON/OFF ..................................................................................................................................... 4
 Operation mode change-over: ............................................................................................................................ 4
 Space heating ....................................................................................................................................................... 4
 Space cooling ....................................................................................................................................................... 4
 Sanitary water heating ......................................................................................................................................... 4
 Space heating & Sanitary water heating ........................................................................................................... 4
 Space cooling & sanitary water heating ............................................................................................................ 4
 Selection of features: ........................................................................................................................................... 4
 Silent mode ........................................................................................................................................................... 4
 Run test function ................................................................................................................................................... 4
 Air purge function ................................................................................................................................................. 4
Note: ............................................................................................................................................................................... 4
The functions “space cooling”, “space heating” and “sanitary water heating” can only be selected when the
corresponding equipment is installed. ....................................................................................................................... 4
b) Clock function ....................................................................................................................................................... 4
The clock functions are: .............................................................................................................................................. 4
 24 hour real time clock ........................................................................................................................................ 4
 Day of the week indicator .................................................................................................................................... 4
 ..................................................................................................................................................................................... 4
c) Schedule timer function ....................................................................................................................................... 4
The schedule timer function allows the user to schedule the operation of the installation according to a daily
or a weekly program. ................................................................................................................................................... 4
d) Name and function of button............................................................................................................................... 5
e) Name and function of icon .................................................................................................................................. 6
3.2 Setting Procedure .......................................................................................................................................... 7
3.3 Detailed description ...................................................................................................................................... 7
3.4 Field setting table ......................................................................................................................................... 10
4 Maintenance ................................................................................................................................................................ 11