Check to make sure Valve Type if Downflow (DF) (left Sticker shown below). The right Sticker shows the serial # of the control valve. The middle Sticker is dataplate which
provides information of Serial # and Date of Manufacture of complete system. Both Serial # labels are important for troubleshooting.
Valve Serial #:
Part #
10
Year Month Date
Batch #
(22018448W): Part #
(L)Year : '' M'' stand for 2016 year,'' L'' stand for 2015, ''K'' stand for 2014, ''J''