BOCK EzFit EZ 75-76N Manual de instrucciones - Página 9

Navegue en línea o descargue pdf Manual de instrucciones para Calentador de agua BOCK EzFit EZ 75-76N. BOCK EzFit EZ 75-76N 11 páginas.

Imprimir página
SECTION VI: MAINTENANCE (cont .)
INSPECT THE VENTING SYSTEM
The vent system should be checked at least once a year for damage and blockage. A draft and
combustion test is also recommended.
If necessary, the water heater flue may be cleaned with a brush or flexible wire. Before
proceeding:
1) Turn the gas valve OFF.
2) Wait at least 5 minutes for the combustion chamber and flue to cool.
3) Use a brush or flexible wire to clean the flue. This can be done through the top of the flue. It
is not necessary to remove the burner.
4) Slide the brush down the flue at the base of each row of fins. This should knock any rust
flakes into the combustion chamber for removal.
If the flue is blocked with soot this indicates serious combustion problems related to the
building and/or installation. These must be addressed before placing the water heater back
in operation.
5) Vacuum any sediment collected in the combustion chamber before restarting the heater.
Access to the combustion area can be obtained through the removal of the two access panels
and insulation. Be sure to replace all parts to their original positions prior to operating the
water heater.

SECTION VII: TROUBLESHOOTING

For your safety, the repair and servicing of this equipment shall only be performed by a
qualified agency.
Table 3: Troubleshooting
P P r r o o b b l l e e m m
P P o o s s s s i i b b l l e e c c a a u u s s e e s s
1) Gas control knob not positioned correctly
2) Air in gas line
Cannot light pilot
3) Clogged pilot orifice
4) Pinched pilot tube
5) Pilot tube leaking
1) Thermocouple connection is loose
Pilot will not stay lit when gas
2) Bad thermocouple
control knob or pilot gas button is
3) Safety magnet breakdown
released.
4) Single use gas shut-off device opened in thermostat
1) Accumulation of scale on burner
Poor combustion (sooting, CO)
2) Combustion air openings or flue/venting restricted
3) Inadequate combustion/ventilation air to room
Rumbling noise during burner
1) Scale or sediment build-up in tank
operation
1) Heater undersized for load
Insufficient hot water
2) Low gas pressure
1) Thermostat set too high or low
Water too hot or not hot enough
2) Thermostat out of calibration
3) Excessive water temperature and pilot failure.
* In the event that the gas thermostat needs to be replaced, contact a qualified agency to perform the replacement.
Page 16
WARNING
CAUTION
R R e e c c o o m m m m e e n n d d e e d d A A c c t t i i o o n n
1) Refer to lighting instructions
2) Purge gas line
3) Clean or replace
4) Repair or replace
5) Tighten connection at thermostat
1) Tighten connection at thermostat
2) Replace thermocouple
3) Replace thermostat *
4) Replace thermostat *
1) Turn OFF burner and clean
2) Inspect and clean.
3) See "Pre-Installation" section
1) Clean/flush tank
1) Reduce hot water usage rate
2) Check gas supply and manifold pressure
1) Adjust setting as required
2) Replace thermostat *
3) Replace thermostat *
Atmospheric Gas

SECTION VIII: PARTS LIST

2
1
10
Figure 7: ezFIT Parts
Table X: ezFIT Parts
Table 4: ezFIT Parts
P P a a r r t t D D e e s s c c r r i i p p t t i i o o n n
1
Hot Outlet Nipple
2
Anode Rods
3
Draft Hood
4
Dip Tube
5
T&P Relief Valve
Atmospheric Gas
3
4
2
5
6
7
8
9
6
Gas Thermostat
7
Inner Access Door
8
Insulation
9
Outer Access Door
10
Drain Valve
Page 17