8
© Baxi Heating UK 2012
Vented system - schematic diagram
Fig. 8
Note: Direct unit shown. Auxiliary heating by immersion heater.
5.0
Cylinder specifications
5.2
Cistern-fed vented
Nominal capacities
210, 250 and 300 litre.
Rating Immersion heater(s)
1 x 3 kW (indirect models),
2 x 3kW (direct models) @ 240V~.
Outer casing
White plastic coated corrosion proofed steel.
Thermal insulation
CFC/HCFC-free (ODP zero) flame-
retardant expanded polyurethane (60mm thick). GWP 3.1
(Global Warming Potential).
Water container
Duplex 2304 stainless steel. 40 metres
(4 bar) maximum working head.
Heat unit
Titanium element/s, incorporated into an easily
removable heater plate, should replacement be necessary.
Rated 3.0kW @ 240V~.
Primary coil
(for auxiliary boiler heating) 22mm
diameter stainless steel. Coil in coil design for improved
performance.
Solar coil
25mm diameter stainless steel. Coil in coil design
and large surface area for improved performance.
Thermostat
Direct models:
Element thermostat adjustable from 10°C to
70°C.
Indirect models:
Factory-fitted cylinder thermostat from 10°C
to 70°C.
Solar:
Factory fitted control pocket suitable for
insertion of solar controller temperature probe.
Safety features
Thermostats with manually resettable thermal
cut-out.
High limit thermal cut-out operating at 85°C at solar coil
position. Wired in series with the solar differential temperature
controller to provide over temperature protection if
overheating occurs from solar collector panels.
Anode
Not required.
For full technical and performance specification see
cylinder installation instructions.
Detailed installation and commissioning instructions are
supplied with the cylinders.
NOTE:
The system is also compatible with cylinders configured
for solar DHW systems. For installation and specification details
refer to the manufacturers instructions supplied with the solar
cylinder.
Any system installed using an unvented cylinder must comply
with Building Regulations G3 and/or other Local Regulations.