energiSava
®
250
Whole House Heat Recovery System
What is it and why is it there?
The energiSava
®
250 is a centralised heat recovery fan unit that
continuously removes stale, moist air from your bathroom, kitchen, WC
and replaces it with clean fresh tempered air through circular valves
mounted in your ceiling and in your living room areas.
How will it help?
It will prevent the build up of moisture in the house, remove steam/
condensation and odours during bathing and cooking, prevent black
mould forming on the walls, behind cupboards etc. It will also help stop
the dampness that you can get in your cupboards and wardrobes, on
your clothes and furnishings, caused by poor ventilation. It provides
continuous, all year round ideal indoor air quality.
How do I control it?
The system operates continuously 24 hours a day at a low rate known as ‘trickle’, to ensure your home is
ventilated at the appropriate level. You can send the system into a higher rate called ‘boost’ in a number
of ways.
• Remote control
Press the button once to see the current status of your unit and again to boost the unit. The boost LED
will light and the unit will go to boost for 20 minutes.
• Switched units
The unit may be switched to boost in a number of ways,
either through your bathroom or kitchen light switch or
via an independent switch. Once the switch is turned o,
the unit will return to the trickle rate.
• Batteries
When the battery requires changing, unscrew the switch
front cover. The battery is located on the back of the
cover. Battery type - 3V Lithium, CR2032.
Summer bypass version
The summer bypass version helps reduce the air temperature coming into the dwelling during the
summer months. It is an automatic function and operates by diverting air around the heat recovery cell
when the supply air temperature to the property is above 25ºC. Summer bypass units only.
Running Costs
The approxiamte annual running costs of the energiSava
®
250 is £12.11 for an apartment (kitchen and
bathroom) and £18.12 for a house (kitchen, bathroom and WC). All costs are based on an electricity cost
of £0.15 per unit (kWh) running on 2 hours boost per day and SAP Appendix Q data. These calculations
must be used as a guide only.
Filter
Frost
No Connection
Connection
Summer
bypass
Boost
Humidity
Switch
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