Rinnai E110CP - Manuel (Page 68)

Installation & Servicing Instructions Rinnai E-Series
68
6. Place the drain hose (H3) and the hose (H2) to the pump (CP) inlet into the cleaning
solution.
7. Open both service valves (V1 and V2) on the hot water and cold water lines.
8. Operate the pump (CP) and allow the cleaning solution to circulate through the
brazed plate heat exchanger for at least 45 minutes.
9. Turn off the pump (CP).
10. Rinse the cleaning solution from the brazed plate heat exchanger as follows:
a. Remove the free end of the drain hose (H3) from the pail
b. Close service valve, (V2), and open shutoff valve, (V4). Do not open shutoff
valve, (V3).
c. Disconnect both H1 and H3 from the service valves
d. Connect H3 to V1 and place the end of the hose in a drain
e. Allow water to fl ow through the brazed plate heat exchanger for 5 minutes
f. Close service valve, (V1), and open shutoff valve, (V3).
11. Disconnect all hoses.
Flushing and draining figure 38
T
P
V1 V2
CP H1
H2
H3
V3 V4
T
P
V1 V2
H1
V3 V4
Flushing
Draining
Low Loss Header
Sediment fi lter
Cold water
Mixed water
to fi xtures
Thermostatic
mixing valve
Vinegar
System Supply System Return
Low Loss Header
Sediment fi lter
Cold water
Mixed water
to fi xtures
Thermostatic
mixing valve
Drain
System Supply System Return