14
Shells assembly
1. Take out the shells from cardboard cover.
2. According to Fig. no. 8 mount the delivered joining material into the side parts of the shell and fasten the
consoles.
3. Loosen the lower anchorage screws, set on the side boiler shell consoles. Insert the front consoles
between the washers with nuts and the front section body, insert the rear consoles directly on anchor
bolts. By lifting put the boiler shell bearing edges behind the upper anchorage bolts. Tighten the lower
anchor bolts nuts.
4. Remove the insulation from the upper part of boiler shell. From OS 03 control box dismount the screws
for the box shell attachment. Remove the sensors of safety thermostat, thermomanometer and the boiler
thermostat. Screw the bottom of the box to the prepared cut-in in the rear part of shell upper part a pull
the sensors through it. Through the bushings in the side edges pull through the control cables and
secure them with MEOS clips. Pull the cables through the cut-in into jacketed control box and connect to
the terminal board according to boiler el. wiring diagram (see. Fig. no. 4 and 5).
5. Insert the rear part of the shell with insulation behind the sheet-metal screws. Pull the conductors from
inside through the upper part of the shell. Set the upper part of shell with insulation on the plugs of shell
side parts; here it is necessary to insert the sensors of thermostats and thermometer in the reservoir for
thermostat and thermometer and screw the manometer sensor into the reservoir for manometer.
6. The closing lid must be set into the prepared opening in the front part of the shell upper part.
7. Set and secure the upper part of OS 03 control box.
8. Screw the brush into the handle sleeve.
9. Filling the heating system with water.
Water for boilers and heating system filling must be clear and colourless, with no suspended materials,
oil and aggressive chemicals. Its hardness must correspond to
Č
SN 07 7401 and it is necessary to treat
water in case its hardness is unsuitable. Even heating the water with a higher hardness several times
does not prevent the soils from getting precipitated on the boiler drum walls. Precipitation of 1 mm calcite
reduces at given point the passage of heat from the metal to water by 10 %.
The heating systems with an open expansion reservoir allow a direct contact between heating water and
atmosphere. During the heating season the expanding water in reservoir absorbs oxygen which
increases the corrosive affects and at the same lot of water gets evaporated. It can only be replenished
by water treated according to
Č
SN 07 7401.
The heating system must be thoroughly flushed in order to wash out all impurities.
During the heating season the water volume in heating system must be kept constant. When refilling the
heating system with water it is necessary to prevent it from air intake. Water from boilers and heating
system must never be discharged or taken for usage except in cases of emergency like repairs etc.
Water discharge and filling with new water increases the danger of corrosion and scale development.
In case we have to refill the heating system with water we only do this operation when boiler is
cold in order to prevent the sections from getting damaged.
10. After having filled a boiler and heating system it is necessary to check all joints for their tightness.
The assembly completion and stoking tests accomplishment must be recorded in “Guarantee
certificate”.
