9
Buff er tanks
UKV 20-220/300/500/750/1000
4. CONNECTION AND START-UP
4.1 Connecti on
4.2 Start-Up
Aft er connecti ng all components of the C/H system, do the
following:
1. Fill up the C/H system with the heati ng medium.
2. Check ti ghtness of all connecti ons.
3. Aft er checking for ti ghtness, insulate the pipelines to-
gether with the tank fi tti ngs thoroughly.
4. Fill up the C/H system with the heati ng medium and vent
the system.
Aft er the installati on and levelling the tank, follow the pro-
cedure below (for the connector pipe numbers, refer to Fig.
4, 5, 6, 7, 8, 9
):
Filling and venti ng the buff er tank:
Ensure that the enti re C/H system is fi lled with the he-
ati ng medium before heati ng the system up for the fi rst
ti me or aft er a longer break in its operati on.
CAUTION
4.3 Thermal Insulati on of the System
In order to minimize thermal energy losses, insulate all con-
nector pipes, pipelines and temperature sensor covers tho-
roughly aft er the installati on of the unit and performance of
the leak proof test. For this purpose, use thermal insulati on
of correctly selected thickness and thermal insulati on para-
meters.
Lack of thermal insulati on, its incorrect thickness or in-
sulati on made of inadequate materials will cause decre-
ase of thermal insulati on properti es of the unit and the
system.
Informati on
You can fi ll the buff er tank directly from the C/H system or
through the tank drain valve. Vent the tank and the C/H sys-
tem aft er fi lling them. Vent the unit through the vent installed
in the top head of the tank (see Fig. 14.)
Aft er completi on of the above steps, the system is ready for
operati on. You can use the facility heati ng system aft er star-
ti ng up the heat source and reaching the required temperatu-
re of the heati ng medium.
Switch OFF the heati ng units and wait unti l the he-
ati ng medium cools down completely in the C/H system
before venti ng the buff er tank.
CAUTION
4.4 Frost Protecti on
If you plan to interrupt operati on of the unit and there is a risk
of freezing the heati ng medium in the tank, drain the tank and
the enti re heati ng system associated with it completely.
Fig. 14
Venti ng the buff er tank
We recommend connecti ng the tank connector pipes
with the system lines by means of unions to allow discon-
necti on of the tank, if required.
Informati on
INSTALLATION AND OPERATING MANUAL
The storage tank connecti ons may not be made of
materials more precious than carbon steel due to the
increased electrochemical corrosion. This applies to
connector pipes (fi tti ngs) contacti ng the tank connec-
tor pipe thread. Preferably, use galvanized connector
pipes (fi tti ngs.)
CAUTION
1. Remove protecti ng plugs from the connector pipes.
2. Connect the supply line from the heat source (4).
3. Connect the return line to the heat source (9).
4. Connect the heati ng system supply line (3).
5. Connect the return line from the heati ng system (8).
6. Install the required temperature sensors (5).
7. If necessary, connect the electric heati ng unit to the con-
nector pipe (13) in UKV 20-300, 20-500 or (15) in UKV
20-750, 20-1000.
Summary of Contents for UKV 20-1000
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