MHG Heating ProCon HT 150, Руководство пользователя

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ProCon HT 150 / HT 225
2. Installation
• Testing tightness
Before start-up, the gas inlet pipe must be checked for tightness.
Push the gas inlet pipe only up to the system shut-off
valve. Note that the gas fitting cannot withstand the high-
test pressure.
• Changing the gas nozzle
The boiler has been preset for natural gas E (or H). For natural gas LL
(or L), the gas quantity must be adjusted via the compact gas fitting.
To operate it with liquid gas, liquid gas nozzles (Ø
10 mm) must be screwed into the outlet side of the compact
gas fitting. A conversion kit for liquid gas is available under
(ProCon HT 150: Code No. 96.38200-7033,
ProCon HT 225: Code No. 96.38200-7034).
Use nozzles according to the table below:
Gas type Ø Nozzle
Natural gas E (H) 15 mm
Natural gas LL (L) 15 mm
Liquid gas propane 10 mm
Table 3: Nozzle openings
During conversion to liquid gas, attach the sign from the
conversion kit onto the appliance.
2.5 Condensed water outlet
• Explanations
The standards for discharging condensed water from gas
condensing boilers into the public sewage system are set by the
local sewage disposal regulations. They lean toward the directives
of German Wastewater Association (ATV) defined in the ATV
worksheets A 115 and A 251.
Note the local regulations on discharging of condensed water from
gas condensing boilers into the public sewage system.
Do not use metal pipes or parts to drain the
condensed water.
• Mounting condensed water outlet
The condensed water outlet pipe is located on the back of the boiler.
Use only plastic pipes to drain off the condensed water. Do not use
metal pipes. The boiler is equipped with a built-in siphon.
• Do not let water accumulate in the pipe (The outlet pipe must
not sag or bend)
• Do not connect any additional siphon permanently.
•
Neutralization
When operating the condensing boiler, slightly acidic condensed
water (pH value between 4.0 and 5.5) accumulates due to the low
flue gas temperatures in the boiler as well as in the flue gas
system.
The accumulated condensed water is discharged via the
integrated neutralization unit into the drainage system. The
neutralization unit is filled with neutralization granules. The
condensed water uses up the granules during operation of the
boiler. The required refills must be determined during the first year
because the consumption depends greatly on the operational
mode of the boiler. As a reference value we can assume that 1 kg
neutralization granules is sufficient for 5000 m³
of natural gas.
2.6 Flue gas outlet / supply air connection
•
General information
The flue gases of the condensing boiler ProCon must be
discharged into the open air via an approved pressure-tight and
moisture-proof flue gas system. MHG offers appropriate flue gas
systems.
The fitter should measure or specify the dimensions of the flue gas
pipes for heating purposes and install them in accordance with the
approval and building supervisory regulations. For the firing
measurement, DIN 4705 “Firing calculation of chimney dimensions;
Terms, detailed calculation procedure” (Edition: 1993-10) shall
apply. Please note the construction supervisory regulations,
especially the respective applicable state building code and the
state ordinance for combustion equipment.
Flue gas systems must have test or clean-out openings for
examination and if possible cleaning. We therefore recommend
that you include the competent local chimney sweep in the
planning stage of the flue gas system. He knows the important
construction supervisory regulations.
The combustion air can be supplied to the gas-condensing boiler
depending on the room air in the boiler room or independent of
the room air via combustion air pipes that are concentrically
installed around the flue gas pipes. (supply air/flue gas pipe
systems).
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