RBI Infinity Energy 2, Руководство по установке

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17 - MAINTENANCE
17.9 - Draining the water
from the heater
To drain the water from the unit, follow the steps
below:
1. set the control temperature to the maximum
(see section 16.6 and 16.7) and wait for all icons
relative to the burners (items “L” of Figure 16-1)
to light. This indicates the eventual motorized
valves (item “17” of Figure 3-1) are open;
2. turn the power off to the heater in a way that all
the motorized valves stop in open position;
3. close the manual gas shutoff valve, Figure 14-1;
4. wait until the water temperature decreases to
below 104°F (40°C);
5. close the heater 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 3-7 and 3-10 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 heater cannot be drained completely
of water without purging the unit with an air
pressure of 30 psi.
WARNING!!!
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!
17.10 - Water and flue
temperature sensor
The heater has a number of sensors that measure
temperature. The electrical resistance between
the sensor wires must correspond with the values
shown in Figure 17-14.
17.11 - Outdoor
temperature sensor
An outdoor temperature sensor can be connected
to the heater (see section 10.1.3). The electrical
resistance existing between the sensor wires must
correspond with the values shown in Figure 17-15.
Figure 17-14 Water and flue temperature sensors’
curve
Figure 17-15 Outdoor temperature sensor curve