29
MAINTENANCE
7
MAINTENANCE
7.1
Suggested minimum maintenance schedule
Regular service by a qualified service agency and maintenance
must be performed to ensure maximum operating efficiency.
It allows for the reduction of consumption, polluting emissions and
keeping the product reliable over time.
The frequency of servicing will depend upon the particular installa-
tion conditions, but in general, once per year should be sufficient.
It is the law that any service work is carried out by a competent
person such as a qualified service agency of the gas supplier.
9
NOTE:
The boiler heat exchanger must be cleaned on a mini-
mum annual basis to prevent particulate build-up and pre-
mature failure of the heat exchanger as well as to optimize
efficiency. Failure to do so will void warranty on the heat ex-
changer. Please consult your local
R
distributor for proper
cleaning instructions.
9
NOTE:
A combustion analysis shall be performed annually to
prevent particulate build-up in the heat exchanger, optimize
efficiency and prevent improper firing.
9
WARNING:
Service should only be carried out by a qualified
service technician. This appliance produces carbon monoxide
(CO) gases. The venting should never be taken apart by anyone
other than a qualified technician. The venting should not be
separated. Failure to comply may result in severe personal in-
jury or death.
9
WARNING:
To avoid electric shock, disconnect electrical supply
before performing maintenance.
9
WARNING:
Annual service should ONLY be performed by a qual-
ified service agency. Schedule annual service by calling a li-
censed service agency.
− Visually check top of vent for soot. Call service person to
clean. Some sediment at the bottom of vent is normal.
− Visually inspect all flue product carrying areas of the boiler
including the venting system and main burner for proper
function, deterioration or leakage. Ensure that condensate
drains are inspected and ensure that condensate is being
directed to appropriate condensate management system or
drain, as required by local codes.
− Check that the area is free from combustible materials, gas-
oline, and other flammable vapors and liquids.
− Check for and remove any obstruction to the flow of com-
bustion or ventilation air to heater.
− Check operation of safety devices. Refer to manufacturers’
instructions.
Listen for water flow noises indicating a drop in boiler water flow
rate:
− To avoid the potential of a severe burn, DO NOT REST HANDS
ON OR GRASP PIPES. Use a light touch; return piping will heat
up quickly.
− Check fan and fan motor.
− Check for piping leaks around pumps, relief valves and other
fittings. Repair, if found. DO NOT use petroleum-based stop
leak products.
− Check the relief valve. Refer to manufacturer’s instructions
on valve.
− Check the condensate check valve dispositive and, if neces-
sary, please contact your Service Technician.
− Verify proper operation after servicing.
9
WARNING:
The pressure relief valve lever must be operated at
least once a year by qualified personnel during annual main-
tenance to ensure that water-ways are clear.
7.2
Cleaning and removing internal components
Before any cleaning operation, disconnect the electrical power
supply by switching the main system switch to "off”.
OUTSIDE
Clean the casing, the control panel, the painted parts and plastic
parts with damp cloth, using soap and water. In the case of stub-
born stains, moisten the cloth with a 50% water and an alcohol
mixture for specific products.
0
CAUTION
: Do not use fuels, sponges with abrasive solutions or
powder detergents.
7.2.1
Condensate drain siphon cleaning
Before starting to disassemble components, close any fill valves to
the unit.
The condensate trap must be periodically disassembled and
cleaned as part of a regular maintenance plan. Failure to clean the
trap regularly can cause condensate drain blockage leading to boil-
er malfunction, property damage and even personal injury.
− Locate the condensate drain trap (1), mounted under the
appliance.
1
