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Switch o the Combi furnace using the CP plus control panel. Due to internal
processes, it may take some time until the furnace is completely shut down.
If the Combi furnace and any other gas-powered device is not needed anymore,
turn o the LP gas supply.
Switch o the Combi furnace’s electrical power supply.
If the RV is being put into storage, or if you switch o the Combi furnace during freezing
temperatures, refer to “Winterizing”.
To make sure that all water drains properly from the water container, place a big enough
vessel underneath the drainage socket of the pressure relief/drain valve (> 2.64 gallons (10
liters).
Use the main switch or pump switch to switch o the power to the water-pump
assembly.
Turn o or disconnect the city water connection, if present.
Open all water release points, e.g. cold and hot water faucets, showers, toilets.
Open the pressure relief/drain valve
The water container will drain via the drainage socket of the pressure relief/drain valve.
1. For decalcifying the water container, ll the water container with citric acid and let it
work for some time.
2. Fill citric acid into the fresh water supply and dilute it with fresh water according to the
supplier’s specication.
3. Add more than 2.64 gallons (10 liters) of water to ll up the water container of the
Combi furnace.
4. Drain the mixture of citric acid and water from the water container (refer to “Draining
the water container”) and ush it with fresh water (refer to “Filling the water con-
tainer”).
5. In order to avoid growth of micro-organisms, regularly heat the water in the boiler to
158 °F (70 °C) as follows:
a. Select energy mode “LP gas” on CP plus control panel.
b. Select the hot water level “boost” on CP plus control panel.
The Combi furnace does not have a frost-protection function. The water
container must be drained if the recreation vehicle will not be used when-
ever there is a risk of frost.
No warranty claims are accepted by the manufacturer of the Combi fur-
nace for frost/freeze damage
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