Radiator Installation Manual

onto the tubing followed by the compression ring, then firmly press the insert into the tubing until it
bottoms out. Slide the nut and compression ring onto the A55400T reducer and tighten.
Figure 1 Copper: Insert the A55400T reducers into the supply and return connections of the radiator and
tighten with a 12mm allen wrench. Slide the A431-1/2” Copper adapter (one piece) onto the copper pipe
until the pipe end contacts the lip on the inside of the rubber seal. Attach to the A55400T reducer and
tighten.
Figure 3: Installation using valves is the same as described above. The only difference is the addition of
one of the valves between the A55400T reducer and tubing or pipe adapter. Completed assembly is
shown in figure 4.
Figure 4
Straight By-Pass Valve Straight Valve
By-Pass valves, both straight and angle, are preset to 35% flow through the radiator and 65% through the
by-pass. Maximum circuit flow rate must not exceed 2 GPM when using either the straight or angled By-
Pass Valves. A maximum of 4 radiators may be connected to a By-Pass Valve piping circuit.
By-Pass adjustment,
below cap.
Isolation ball valves