25
- Make sure that the electrical supply system has been
installed by a qualified electrician in compliance with
applicable standards
- Make sure that the flow rate, head and direction of
flow of the pumps are suitable and correct
- Make sure that the fuel feed line and any storage tank
are made and installed in compliance with applicable
standards
- Make sure that expansion vessels are big enough to
contain the additional volume generated by thermal
expansion
- The system has been cleaned of sludge and deposits.
2 7 Water connections
The
Power Plus Box
condensing systems are designed and built to be installed in hot water heating systems. They are
used only for this purpose and any other erroneous or unreasonable application is prohibited.
Before starting with installation, establish the outlet direction of the water, gas and condensate manifolds and of the flue
gas manifold in the case of an installation in a central heating plant. Also take the electrical connections (230V~50Hz
power supply) of the condensing modules into account.
Position the modular system(s) and the technical cabinet with the hydraulic separator near the system's delivery and
return manifolds.
To make it easier to position the modular system in the area of installation, refer to the "Handling" paragraph.
Adjust the feet of the cabinet if necessary to level them, making it possible to easily open and close the doors and align
the manifold flanges.
Counterflanges and blind flanges for the water and gas manifolds can be purchased easily on the market.
b
Provide the system filling, draining and safety components, expansion tank, etc.
b
The use of a hydraulic compensator is mandatory.
23
1
3
18
19
20
18
22
18
18
19
20
18
18
18
19
20
18
18
17
2
4
5
6
7
8
9
10
11
11
12
13
15
16
15
21
14
COMPENSATORE
IDRAULICO
POWER PLUS BOX
1 Power Plus Box
modular system
2
Hydraulic compensator
3
Gas supply
4
Automatic vent valve
5
Maximum pressure switch connection
6
Control thermometer connection
7
Gas shut-off sensor trap
8
Bimetallic thermometer connection
9
6 bar pressure gauge connection
10
Collector temperature sensor socket
11
Expansion tank connection
12
Return thermometer connection
13
Safety valve connection
14
Thermometer connection
15
Drain cock
16
Flanged pipe
17
Manifold delivery sensor trap
18
Disconnect valves
19
System pumps
20
Non-return valves
21
Outlet connection
22
Flue gas exhaust manifold connection
23
Drain