Circulating Pump - Rinnai V2532FFU Series Operation & Installation Manual

I N S TA L L E R ' S I N S TA L L AT I O N I N S T R U C T I O N S
RINNAI Water Heater Flush Procedure
1. Disconnect power to the Rinnai Water Heaters.
2. Close valves V3 and V4.
3. Connect pump outlet hose H1 to service valve V2.
4. Connect drain hose H3 to valve V1.
5. Pour approximately 4 gallons of virgin, food grade,
white vinegar (or virgin, food grade, citric acid) into pail.
6. Place free ends of hose H2 and H3 into pail.
7. Open valves V1 and V2.
8. Turn on power to circulating pump and allow solution
to circulate through water heater for 45 minutes.
9. Turn off power to circulating pump.
10. Remove free end of hose H3 from pail.
11. Close valve V2 and open valve V4, only.
Do NOT open valve V3 at this time.
12. Allow water to flow out of hose H3 for 5 minutes,
rinsing cleaning solution from water heater.
13. Close valve V1 and open valve V3.
14. Disconnect hoses H1 and H3 from service valves.
15. Remove in-line filter from water heater cold water inlet
and clean out any residue. Place filter back into unit.
16. Restore power to water heater.
5 gallon pail of virgin, food
grade, white vinegar (or virgin,
food grade, citric acid).
3/4" Ball Valve
3/4" Union
Check Valve
Pressure Relief Valve
103 International Drive
Peachtree City, Georgia 30269
Rinnai America
RECOMMENDED SCALE FLUSH PROCEDURE
H3
KEY
Pressure Regulator

Circulating Pump

Boiler Drain Valve
S
Solenoid Valve
Domestic Hot Water - Scale Flush Procedure
Water Heater
V1
V3
H2
Circulating Pump
This is not an engineered drawing, it is intended only as a guide and
not as a replacement for professionally engineered project drawings.
This drawing is not intended to describe a complete system, it is up
to the contractor/engineer to determine the necessary components
for and configuration of the particular system being installed. The
drawing does not imply compliance with local building code
requirements. It is the engineer/contractor responsiblity to ensure
the installation is in accordance with all local building codes. Confer
with local building officials before installation.
RINNAI WATER HEATERS
1 Rinnai Water Heater
35
Rinnai
V2
V4
H1
FF Models