DeDietrich MCA Pro 115, Инструкция по установке и обслуживанию, Страница: 85 / 120

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MCA Pro 45/65/90/115 MCA-Pro ISM Rv.4.1 2/2017
WARNING
The boiler must be inspected and started up on
an annual basis, at the beginning of the heating
season, and only by a professional licensed heating
contractor. In addition, the care and maintenance of
the boiler as outlined on page 87 and explained on
the following pages must be performed to ensure the
maximum boiler reliability and efficiency. Failure to
maintain and service the MCA Pro boiler and system
could result in the equipment failing.
DANGER
Electrical shock hazard. Disconnect or turn off power
to the boiler prior to any boiler servicing except as
noted otherwise in this manual. Failure to disconnect
or turn off electrical power could result in electrical
shock causing death or severe personal injury.
Inspect any reported problems
Before proceeding, inspect and correct any issues or
problems reported by the owner.
Inspect the boiler area
1. Inspect and verify that the boiler area is free from
any gasoline, combustible materials, and any other
flammable liquids and vapors.
2. Inspect and verify that the air intake area is free of
any contaminants that are listed on page 8. If any
contaminants are found in the air intake area, they
must be removed. If removal is not possible the air
and vent lines will have to be reinstalled as per the
instructions found in this manual.
Inspection of door gaskets and the boiler interior
1. Remove the front door casing and inspect the
interior of the boiler.
2. Make a visual inspection of the door gaskets and verify
that they are all in good condition. Replace if necessary.
WARNING
The door gaskets must be in perfect condition and
must provide a reliable seal. Replace any damaged
gaskets.
3. If necessary, remove and clean the Venturi air inlet
silencer. Replace the silencer.
4. Use a vacuum to remove any sediment from the
inside of the boiler and the boiler components.
Remove any obstructions.
WARNING
Never use solvents to clean any of the MCA Pro boiler
components as these components could be damaged
which would result in unreliable and unsafe boiler
operation.
Cleaning the condensate trap
1. Unscrew condensate container and empty the water
from the trap line, inspect the line and flush out
with fresh water if needed.
3. Inspect the condensate container, the condensate
line to the drain and flush if necessary to clean
it. Ensure the condensate trap is filled with water
before operational boiler.Refer to chapter 4.12.2.
4. Reinstall the condensate trap line and tighten the
hose clamps.
Checking the pipes for leaks
WARNING
All boiler or system leaks must be eliminated. The life
of the boiler will be reduced with the addition of con-
tinual fresh make-up water. There can be a build-up
of minerals on the sections, reducing heat transfer,
overheating the heat exchanger, and causing the heat
exchanger to fail. Severe property damage can also be
caused by leaking water.
1. Inspect and verify that all water and gas pipes are
leak free.
2. Check for any signs of lines leaking and rectify and
problems that are found.
Checking the air openings
1. Inspect and verify that the combustion and ventilation
air openings to the boiler room and/or the building are
unobstructed and open. If used, check the wiring and
operation of the automatic air dampers.
2. Inspect and verify that the boiler air intake and vent
discharge are clean and free of obstructions.
Air piping and flue vent system
Make a visual inspection of the entire combustion air
piping and flue gas vent system for any blockages, leak -
age, or signs of deterioration. Repair any and all joints
that show signs of leakage in accordance with the vent
manufacturer’s instructions.
DANGER
A failure to inspect the boiler and system for the above
conditions and subsequently have them repaired can
result in death or severe personal injury.
Checking the water system
1. Inspect and verify that all system components are
correctly installed and operational.
2. Check and verify that the cold fill pressure for the
system is correct. This is usually around 13 psig/
.88 Bar.
3. During testing, watch the boiler system pressure
as it heats up in order to ensure that the pressure
does not rise too high. An excessive pressure rise
indicates a performance issue or an expansion tank
problem.
4. Inspect the air separators and automatic air vents.
To flush the vent, remove the air vent caps and
briefly press the push valve. Reinstall the vent
caps. Ensure that the vents do not leak and replace
any leaking vents.
5. Check the pH, hardness and inhibitor level of the
water system chemistry. Refer to page 28.
Checking the expansion tank
1. An expansion tank provides space for the water
7. Checking and Maintenance