4
The factory fitted temperature & pressure relief valve at the top of the
cylinder is a safety device to back-up the thermostat(s) and thermal cut-
out(s). It works by sensing an excess in water temperature or pressure and
releasing the hot water into a discharge tundish and drain.
The cylinder will only work in the vertical position. The inlet pipe needs to
deliver cold water to the bottom of the tank. When water is heated it expands.
To accommodate this increase in volume an expansion vessel is provided. A
cold water combination valve is also provided in two pieces, loose jointed for
ease of installation. These comprise a combined line strainer/pressure
reducing valve and core non-return valve/expansion relief valve.
The Ariston range of Unvented Cylinders are available in the following
options:
The
Wall-hung ProTech
cylinder (100 litre model), which is supplied as
follows;
One box containing;
1) The cylinder with factory fitted temperature & pressure relief valve,
immersion heater and thermostat with thermal cut-out.
One box containing;
1) Unvented control pack (expansion vessel, 2 piece cold water combination
valve and tundish), instructions for installation, servicing and use
including the Benchmark Log Book).
The
STD
and
STI
floor standing range (125, 150, 200, 300 and 500 litre
models) and the ITD and ITI floor standing range (80*, 130, 150, 215, 255*
and 305 litre models) are supplied as follows;
One box containing;
1) The cylinder with factory fitted temperature & pressure relief valve,
immersion heater(s) and thermostat(s) with thermal cut-out(s), cylinder
thermostat with thermal cut-out (indirect only).
2) Unvented control pack (expansion vessel, 2 piece cold water combination
valve and tundish), motorised valve (indirect only, non-high temperature),
expansion vessel mounting bracket, instructions for installation, servicing
and use including the Benchmark Log Book.
The
ITSI
twin coil floor standing range (215, 255 and 305 litre models) are
supplied with the following;
One box containing;
1) The Cylinder with factory fitted temperature & pressure relief valve,
immersion heater and ther mostat with ther mal cut-out, cylinder
thermostats with thermal cut-outs.
2) Unvented control pack (expansion vessel, 2 piece cold water combination
valve and tundish), 1 x motorised valves (non-high temperature),
expansion vessel mounting bracket, instructions for installation, servicing
and use including the Benchmark Log Book.
* ITI only
2.3
D
elivery
Summary of Contents for AQUABRAVO ITD 130
Page 18: ...18 FiG 3 12 systeM A systeM B ...
Page 23: ...23 Wiring diagram for a 3 Port Valve 2 Port Valve FiG 3 17 ...
Page 32: ...32 ...
Page 33: ...33 ...
Page 34: ...34 8 BENChMARK COMMISSIONING ChECKLIST ...
Page 35: ...35 9 BENChMARK SERVICE RECORd ...
