Rev. F 02-2021
26
KIVM
MTEC.6500.GB-F-1 Operation and maintenance manual SDA series English
SDA
6ZLPPLQJSRROGHKXPLGL¿HUV
+RZWRFRQQHFWWKHKRWZD2:$ZD\PRGXODWLQJYDOYH.,90$FFHVVRU\
To
LQVWDOOWKHKRWZDWHUFRLOLWLVQHFHVVDU\WRUHPRYHWKHSUHNQRFNRXWKROHVRQWKHEDFNSDQHORIWKHXQLW¿[WKHZDWHUFRLOFRQQHFWLRQVWR
the hot water coil. The hot water coil connections are 3/8” diameter for models 75-100 and ¾’’ for models 150-200.
The modulating 3 way valve is installed directly in factory as showed in the picturet. It is controlled directly by the board.
For proper equipment operation, it is recommended powering the unit with a dedicated pump. It is strongly recom-
mended to connect the unit upstream of the collector system to ensure proper water supply (see drawing).
This option is available only in combination with the electronic probe RGDD. It is not available in combination with
remote mechanical hygrostat.
The inlet maximum water temperature allowed is 80°C.
The inlet minimum water temperature allowed is 55°C.
For a correct functioning of the unit, it’s advisable to bleed carefully the circuit using the vent valve present in the unit.
4.11 How to vent the unit
For a correct operation of the system it is mandatory to remove the air from the hydraulic circuit. To do that it’s recommended to use the
proper vent valve positioned in front of the unit (see picture).
Vent valve
Hot water coil connections