Draining The Water From The Appliance - RBI Infinite Energy2 IW199 Installation And Operation Instructions Manual

16 - MAINTENANCE
16.9 - Draining the water from
the appliance
To drain the water from the unit, follow the steps below:
1.- Set the control temperature to the maximum and wait
for all icons relative to the burners (items "L" of Figure
15-1) to light. This indicates the eventual motorized
valves (item "17" of Figure 3-1) are open;
2.- Turn the power off to the appliance in a way that all
the motorized valves stop in open position;
3.- Close the manual gas shutoff valve, Figure 13-1;
4.- Wait until the water temperature decreases to below
104°F (40°C);
5.- Close the appliance isolation valves, in the heating
system. If isolation valves haven't been installed, the
entire heating system will have to be drained;
6.- Check that the heating system fill valve is closed;
7.- Connect a hose to the drain valves item "38" of
Figures 3-5, 3-8 and 3-11 and place the other end of
the hoses in a sink or some other suitable drain;
8.- Open the drain valves and wait for all water to drain;
9.- If unit isolation valves have not been installed, open
any bleed valves at the highest point of the system;
10.- After draining out all the water, close the bleed
valves and the unit drain valves.
NOTICE! The appliance cannot be drained completely of
water without purging the unit with an air pressure of 30
psi.
WARNING!!!
Do not recover and/or re-use
water drained from the heating circuit for any
purpose as it could be contaminated. Failure to
comply with this warning can cause extensive
property damage, severe personal injury or
death!
115