Cylinder Specifications - Baxi Solarflo Installation Manual

Fig. 10
Unvented system - schematic diagram
Flow Meter
Drain Points
Note: Indirect twin coil unit shown.
NOTE: For optimum operation the cold connection must be taken from a
balanced cold water feed.
Fig. 11
Location of solar sensor pockets
Warning: Isolate mains supply before accessing controls housings
remove screw for access
View with immersion
Auxiliary coil
control stat fitted. Pull
controls housing
to remove for access
to sensor pocket
Solar coil
controls housing
remove screw
for access
© Baxi Heating UK Ltd 2008
8
Balanced
Cold Feed
Reheat
Sensor
View with immersion
control stat removed.
Insert sensor here
Reassemble in
reverse order
Solar cylinder sensor position
6.0

Cylinder specifications

6.1 Unvented
Solarflo TM is designed to work with the Heatrae Sadia Megaflo
Solar Unvented.
Nominal capacities 190, 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 (50mm thick). GWP 3.1
(Global Warming Potential).
Water container Duplex 2304 (Grade 1.4362 EN 10088)
stainless steel.
Pressure tested To 15 bar.
Heat unit Long-life Superloy 825 alloy sheathed 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.
Combi Valve
Thermostat
Direct models: Element thermostat adjustable from 10°C to
70°C.
Indirect models: Factory-fitted cylinder thermostat adjustable
to 70°C.
Solar: Factory fitted control pocket suitable for insertion of
solar controller temperature probe.
Factory fitted safety features:
Direct models: Manually re-settable cut-out on heating
element operates at 80° ±3°C.
Indirect models: High limit thermal cut-out operates at 85°C.
Wired in series with two-port motorised valve (supplied) to
provide primary over temperature protection when using
auxiliary (boiler) coil.
All models: Temperature and Pressure Relief Valve,
factory set to operate at 10 bar and 90°C.
High limit thermal cut-out operating at 80°C ±3°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.
NOTE: This must be used in an unvented installation to
comply with the requirements of Building Regulation G3.
Anode Not required.
For full technical and performance specification see
cylinder installation instructions.