User manual

Page 40
Maintenance
Depending on the outcome of the inspection/service, (preventative) maintenance should be considered as follows. Firstly
comments from the user should be taken seriously, then:
a. The pressure of the system should be set between 1 and 4 bar unless 6bar version. Find possible leaks in the
system and have these fixed. Check that the water additive concentration is in accordance with the manufacturers
instructions.
b. Any Water leakage must be repaired as serious damage to the Boiler could result.
c. Flue: Find the cause of any water leakage from the air supply (possible cause from the roof surface). Check both
the twin pipe and/or the coaxial flue and trace any leaks in the flue gas discharge and rectify. Check seals
d. Rinse the condensed water from the siphon. Remove the Burner, then using a hose, pour water into the
heat exchanger (it will eventually reach the siphon). Adjust the drain line up (if possible) allowing the water to flow
to the drain of the boiler .Check the condense water can flow freely to the drain Do not wet any insulation
material. The condense drain must be clean. Re fill the syphon
e. Check and if required replace the rear and or front insulation pad if any damage or ware is showing.
f. Check all the gaskets and replace if required
g. Act upon the findings from the service screen using the service program and change any parts that may be the
cause of these faults.
h. Adjust the gas setting at the gas safety valve, as necessary..
i. If the Boiler pump has become noisy (certainly more applicable when the pump has been working for more than
five years) it is recommended to replace the pump motor as a precaution.
j. Never clean the burner itself - it is not required. If dirt has built up on the inside of the heat exchanger and/or
scale has formed on the inside of the stainless steel pipes, it should be removed using a hard brush and citric acid
do not use a steel brush! Always vacuum any dirt away.
k. If deposits have built up on the fan blades, carefully clean the blades one by one until the blades are clean again.
Work consistently in cleaning the blades, or else the fan may run irregularly and become out of balance.
l. Carefully bend the electrode until the gap is correct 4 to 5 mm or replace (see page 39).
m. Check the Boiler combustion and re-set if required.
The condense water drain is next to the centre at the bottom of the boiler and has a ¾ inch hose discharge
N.B.! - use only plastic fittings with the condense water drain. Metal or copper pipes are not allowed.
Warning - Blockage of this drain may cause damage to the boiler. The drain connection is correct when the con-
dense water can be seen flowing away, e.g. using a funnel. Any damage that may occur due to a blockage is not cov-
ered by the warranty. Clean & flush the condense system
INSTRUCTING THE USER
Show the user how to operate the entire system. Above all, the user should be made familiar with all safety precautions.
The user should be told that service and maintenance of the SCB boiler is required every 12 months or more. Regular
service is essential for the safe operation of the boiler. Hand the user the documents supplied with the S-CB boiler.