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into the boiler's standard supply package and is purchased separately.
If the incoming water's hardness exceeds 9 mg-eq/l, it is necessary to use more powerful water softening
installations
7. 2. 2. Propylenglycolum usage conditions
It is acceptable to use as a heat carrier in the heating system the low-freezing liquid only on
Propylenglycolum base (hereinafter referred to as Propylenglycolum).
IT IS PROHIBITED to use other low-freezing liquids!
It is necessary to use the Propylenglycolum concentration with freezing temperature not lower than
minus 20 ºC. In order to receive heat carrier with required freezing temperature it is necessary to
strictly follow the recommendations of the Propylenglycolum manufacturer.
When Propylenglycolum is used as a heat carrier the heating system must be made in accordance with
the project, complying with the following requirements:
-The heating system's project must be adapted for use of Propylenglycolum as a heat carrier.
-seal materials of the heating system's joints must be fit for operation in Propylenglycolum
environment;
-it is unacceptable to use zinc-plated pipes in the heating system;
-it is necessary to use radiators and circulation pumps of increased power, as the boiler's heating
effect reduces at using Propylenglycolum (for approximately 10%);
-in the heating system there must be provided a possibility of Propylenglycolum infeed in case of it
leakage.
It is necessary to use Propylenglycolum not longer than its shelf life, in accordance with the
manufacturers recommendations.
In the Certificate of boiler's installation and effectuation of technical service the specialist of the
service organization, who effected the boiler's installation, must make a mark about usage of
Propylenglycolum as a heat carrier, indicating its brand.
7.2.3 New heating system
The new heating system, before connecting it to the boiler must be cleaned from shavings, welding
lubrication burr and other undesirable materials that may have got inside of it at installation, using
appropriate means for it.
7.2.4. Existing heating system
The existing heating system must be cleaned from accumulated dirt, rust and scale deposits before
connecting it to the boiler, using appropriate means for it.
7.3. Selection of an additional expansion tank
The membrane type expansion tank, inbuilt into the boiler is designed for connection of the boiler to the
heating system with a capacity of not more than 70 liters. If the boiler is connected to the heating system
with bigger heat carrier volume, it is necessary to install and additional membrane expansion tank. The
additional expansion tank selection and installation must be effectuated only by a specialized service
organization. Indications on selection of an additional membrane tank are represented in Annex II (page
64).
8. BOILER INSTALLATION
8.1.Mounting the boiler to the wall
- The boiler must be installed in kitchens, corridors or other non-living heated premises in accordance with the
gasification project, the set of rules SP 62.13330.2011, SP 41−108−2004, SNiP 41-01-2003 and Regulations
of fire safety of Russian Federation(PPB 01−03);
- in accordance with p. 4.2.7, 4.2.10 and 4.2.11 SP 41−108−2004 the boiler installation should be provided
in the following conditions:
- On the walls made from non-flammable (NG) or low-flammable (G1) materials;
-On the walls covered by non-flammable (RG) or low-flammable (G1) materials (for example roofing steel on
a sheet of heat-insulating layer of non-flammable materials not less than 3 mm thick; lime plaster not less than
10 mm thick) on a distance of not less than 3 cm from the wall. The above mentioned wall covering must get
outwards the boiler's coating's dimensions for not less than 10 cm;
-Placing the boiler above the gas stove or kitchen sink is unacceptable;
-In front of the boiler there should be a service zone of not less than 1 meter;
- You should choose a place for installing the boiler taking into account the fact that for convenient service a
free space of not less than 150 mm on the boiler's lateral sides and not less than 200mm under it is needed.
The boiler's overall dimensions are represented on Scheme 1 (page 6);
- Mark the boiler's attachment points, applying the carrier from the supply package and perforate holes Ø10 mm.
In order to mark the holes on the wall it is recommended to use a harness board, included into the boiler's supply
package. Put the wall dowels from the supply package into the holes and fix the boiler mounting carrier, using the
screws from the supply package;
-hang the boiler by the mounting holes, located on the channel bars, onto the hooks of the carrier.
8.2 Connecting the boiler to the heating system and the DHW system
- Connecting the boiler to the heating system and the DHW system must be made with metal pipes or
flexible hoses with inner diameter not less than 20 mm for attaching them to the CH and not less than 15
mm for attaching them to the water supply system. The hoses must be resistant to the inlet water and heat
carrier with set parameters of pressure and temperature. The hoses must be not more that 2,5 meters long.
The hoses should be installed in accordance with the instructions of their manufacturer;
-We strictly recommend to install two stop valves G3/4 by the inlet into the heating system and the
output from it (they are not included into the supply package) in order to effectuate the technical service
operations without water drain from all the heating system;
-In order to avoid boiler's CH's dirtying on the heating system's reverse line (by the inlet into the boiler) it is
necessary to install net filter ("mud flap") and slime tank;
-A stop valve G1/2 (not included in the supply package) must be installed on the DHW line in front of the
filter.
-Remove cover plugs from connection pipes;
-connect the boiler to the heating and water supply systems. Check the joints' air tightness.
-CAUTION! The CH pipelines must pass through inner heated premises, otherwise in case of using
water as a heat carrier freezing inside of the CH is possible at sub-zero temperature of surrounding air.
8.3. Connecting the boiler to the gas network
- In accordance with p. 7 SP 62.13330.2011, the connection of the gas line to the boiler should be made with
metal pipes (steel and copper) and heatproof multi-layered polymer pipes, including also one metal layer
Technical staff manual
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