Airxcel Aqua-Hot 200 Series, Руководство по обслуживанию

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Fluid Circulation Pump
©Aqua-Hot®
250-D03 Diesel Series Service Manual REV 220302
p. 92
Winterizing the Aqua-Hot
Not winterizing the Aqua-Hot when freezing temperatures are
present will result in serious damage to the Aqua-Hot domestic
water heating system� Ensure that only non-toxic RV antifreeze (FDA
approved “GRAS” antifreeze) rated for winterization is used when
winterizing this unit� The warranty does not cover freeze damage�
Winterizing the Aqua-Hot
The Aqua-Hot’s domestic water heating system must be
completely drained of domestic water at any time the heater is
stored where freezing temperatures may be experienced.
Please follow these instructions when winterizing the Aqua-
Hot domestic water heating system. Reference Figure 164
for a system overview and pages 102-103 for selecting the
appropriate winterization antifreeze.
NOTE: The Aqua-Hot can continue to be used for interior heat
once the domestic hot water system has been winterized.
1. Disconnect or shut off any external sources of freshwater.
2. Open all faucets, shower heads, and similar. Open both the
“HOT” and “COLD” valves on the faucet, if applicable.
• If only one valve, open it to the “halfway point”.
3. Ensure that the RV is connected to a waste collection point,
such as a grey water tank.
4. Attach an external fluid pump to your fresh water connection.
5. Ensure that the fill pump intake hose is situated in a large
enough supply of “GRAS” winterization antifreeze so that
the pump does not run dry if left unattended.
6. Activate the external fill pump. Allow the pump to run until
ONLY antifreeze is exiting the faucets in the RV.
7. Once this has been completed, deactivate and disconnect
the external fluid pump.
8. Close all but one faucet in the RV. This will allow the
winterization antifreeze to expand and contract as
necessary with temperature changes, thereby greatly
reducing the likelihood of pressure-related damage to
interior pipes.
Disinfecting the Domestic Water System
The Aqua-Hot Heating components are not compatible to
prolonged exposure to sodium hypochlorite (bleach or liquid
bleach). Using products containing bleach, including water
refreshers, may cause corrosion of the domestic water lines,
resulting in a catastrophic failure of the Aqua-Hot system by
creating leaks that cannot be repaired. This damage is not
covered by the Aqua-Hot warranty.
If disinfecting the hot water system, be sure to follow NFPA
1192 Standard of Recreational Vehicles “Instructions for
Disinfection of Potable Water Systems” or any other applicable
local standards for Potable Water Systems.
De-Winterization:
1. To de-winterize the unit, connect a freshwater source to
the RV.
2. Ensure that all the interior faucets have been re-opened.
This includes both HOT and COLD valves have been opened.
3. Turn on the external water source, and allow it to run until
winterization antifreeze no longer flows from any faucets.
To Hot Water Faucets
Tempered
Domestic Hot Water
Fresh Water
Storage Tank
Cold Water Faucets
Demand Pump
Domestic Hot
Water Outlet
NOTE:
Extended exposure to household bleach will corrode the
components of the Aqua-Hot will potentially dramatically shorten
the operational lifetime of the Aqua-Hot. Under no circumstances
is the Aqua-Hot to be exposed to household bleach for extended
periods of time.
Figure 164