24
5813 312 - 01
Vitocell 300-W/V, EVIA/EVIB Installation, Operating and Service
Service
Cleaning the Inside of the 119 USG (450 L) Tank
1. Drain domestic water from DHW tank.
2. Remove top panel
A
insulation mat
B
and
sensor
C
.
3. Remove tank cap, circular blank and gasket
D
.
4. Remove lower cleanout cover
E
and insulation
F
.
5. Remove 8 bolts (M10x25) from blank flange and
gasket
G
.
6. To prevent chemicals from entering piping, disconnect
tank from domestic cold water piping system.
7. Remove loose build-ups with a pressure washer.
8. Remove stubborn build-ups which are resistant to the
pressure washer with a chemical cleaner.
9. Rinse interior of tank thoroughly after use of chemical
cleaners.
WARNING
Water being drained may be hot!
WARNING
Never use any cleaners containing muriatic acid.
Follow the manufacturer‘s instructions and warnings
when utilizing chemical cleaners for deliming and cleaning
devices. Solutions used for cleaning stainless steel
equipment in food processing are usually suitable.
CAUTION
Never use a metal brush to clean tank interior or heat
exchanger - only non-metallic material may be used.
1. Reconnect tank to domestic water piping.
2. Replace gasket of tank cap
D
, with a new gasket
every time tank is opened.
3. Place circular blank and fasten the tank cap
D
using a torque setting of: 118 lb.ft (160 Nm).
4. Fill tank with domestic cold potable water.
5. Reinstall sensor
C
, insulation mat
B
and top
panel
A
.
6. Replace lower cleanout gasket, reinstall cleanout
blank
flange
G
. Torque flange bolts to 29.5 lb.ft
(40
Nm).
7. Reinstall lower cleanout insulation
F
and cover
E
.
8. Record the completion of these service procedures
in the Maintenance Record on page 31.
9. Check all connections for leaks. Tighten if necessary.
