Laars FT Series, Инструкция по установке и эксплуатации, Страница: 74 / 92

Page 74
8.3 Draining and Cleaning
1. Place a bucket under the appliance to collect the residual water inside the combination boiler.
2. Press the Power button on the front control panel to turn OFF the electrical power to the combination boiler.
3. Turn off the gas valve.
4. Close water supply valve on the inlet to the appliance. If there is no valve, turn off main water valve.
5. Open the hot water faucets completely.
6. Remove the CH (Central Heat) return filter by removing the metal pin and then pulling
the filter downward.
7. Remove the Cold Water Inlet filter by removing the two small pins and then pulling the
filter downward at an angle. If your system is using a flow restrictor, be sure that the
flow restrictor is also cleaned and placed back into the system during re-assembly.
8. Clean them with a toothbrush and clean running water.
9. To refill the combination boiler, reassemble the filters back into the combination boiler and
reverse steps 7 back to 1.
FTCW
199
FTCW
140
Flow Restrictor
Cold Water
Inlet Filter
CH Return Filter
8.4 Freeze Protection
FT Series Boilers are certified for indoor use only, and
are not design-certified for placement outdoors.
Proper precautions for freeze protection are
recommended for boiler installations in areas where
the danger of freezing exists.
Power outage, interruption of gas supply, failure of
system components, activation of safety devices, etc.,
may prevent a boiler from firing.
Any time a boiler
is subjected to freezing conditions, and the boiler
is not able to fire, and/or the water is not able to
circulate, there is a risk of freezing in the boiler
or in the pipes in the system.
When water freezes,
it expands which may result in bursting of pipes, or
damage to the boiler, which could result in leaking or
flooding conditions.
NOTICE
Not all pumps are capable of maintaining the
reduced temperature rise required with glycol
concentrations greater than 35%.
NOTICE
Different glycol products may provide varying
degrees of protection. Glycol products must be
maintained properly in a heating system, or they may
become ineffective. Consult the glycol specifications,
or the glycol manufacturer, for information about
specific products, maintenance of solutions, and set
up according to your particular conditions.