2.3.2. Filling/Draining the Heating System
After completing installation of the boiler, a ball valve shall be fitted to the
heating system to provide supply from the city line to the closed circuit
heating system. Open this valve until the Manometer pressure reaches 1-1.5
bar, then close the Filling Valve by turning it clockwise, and Vent the air in
the radiator with air vent valves.
The discharge of the safety valve of the boiler must be connected to a
discharge hopper. Otherwise, the manufacturer shall not be responsible
for drainage of water into to the installation place when the safety valve is
enabled.
2.3.3. Drainage of the Condensate Water
The appliance shall be connected to the drainage water network through pipes
with minimum Ø 24 mm diameter, and resistant to
acidic condensate water. The connection of the appliance to the drainage water
line shall be performed in the way to prevent freezing of the water contained
therein. It must be ensured before starting up the appliance that the condensate
water has been drained properly; then check that the flusher is filled with
condensation water (2.2.9). In addition, the installation and all connections must
comply with the specifications, national and local regulations on discharge of
waste water.
2.3.4. Circulation Pump (Optional)
As Enerwa Plus H boilers are supplied without pump, a pump shall be used to
provide the required flow rate for the radiator heating system depending on
the critical line pressure loss. Warmhaus recommends the pump complying
with the European Energy Efficiency Directives (ErP) given in Figure 38 which
is provided as optional , in order to achieve a good performance and energy
saving
2.3.5. Filling the flusher for Condensation Line
After the wall mounting operation of condensing boiler, electrical
connections, radiator lines, hot tap water connections and condensation
water drainage line are completed, condensation flusher shall be filled with
water (Figure 8).
• The heating installation must be washed and cleared off dirt before
filling!
Figure 7
Combi bottled gas connection
LPG
LPG
Ball Valve
COLLECTOR
370 mmSS
2 kg
Hood
12 kg or
24 kg
LPG TUBE
High Temperature
Circuit
Condensate
Drainage
Gas
Figure 8
Connection Diagram of Single Boiler and 1 High Temperature Circuit
Figure 9
Filling the condensation flusher
2.3. HYDRAULIC INSTALLATION RULES
2.3.1. Heating System Water
In order to prevent invalidity of appliance warranty prior to making
boiler connections, clean possible residues found in main heat
exchangers (pipes, heater assembly, etc.) with dissolvent or equal
substances, otherwise they will negatively affect functioning of the boiler.
Equivalent materials in order to avoid cancellation of the warranty,
otherwise proper operation of the boiler will be affected negatively. In order
to prevent lime scale in the radiator follow rules envisaged by standards
regarding domestic hot water and radiator installations.
10
warmhaus.com
