HS Tarm 2000, Installation And Operation Manual

Page: 54 / 66

O
PERATING
Y
OUR
B
OILER (continued)
PAGE 49
SHUTDOWN PROCEDURES
If you are not firing the Tarm EXCEL for any extended time periods (such as the summertime), you
must maintain the boiler temperature at 140
°
F in order to prevent condensation and corrosion. If
you cannot maintain boiler temperature, then you must protect the boiler by taking the following
steps:
1. Clean the inside of the boiler using the scraper and wire brush.
2. Remove all ash deposits from the boiler completely with a vacuum cleaner.
3. Remove and clean the smoke pipe connecting the boiler to the chimney.
4. Do not replace the smoke pipe.
5. Stuff insulation into the flue outlet of the boiler to block off air passing through the boiler.
6. Keep all doors and air dampers closed.
If you still notice condensation forming inside the boiler firebox, hang a 15-25 watt light bulb inside
the firebox.
CAUTION: IF YOUR TARM EXCEL BOILER IS EQUIPPED WITH A DOMESTIC HOT WATER
COIL, BE SURE THAT COLD WATER DOES NOT PASS THROUGH THE COIL
WHEN THE BOILER IS SHUT DOWN! This can cause excessive condensation on
the boiler body and will void your warranty.
OPERATION DURING SUMMER WHEN A HEAT STORAGE TANK IS CONNECTED
•
When the Tarm EXCEL is installed with a heat storage tank system from TARM
USA, INC. it is feasible to heat all of your domestic hot water (DHW) with wood fuel
during the summer (non-heating) months. You can, of course, also heat the DHW with
the boiler fired on oil or gas. Operationally, the boiler will heat up the water in the heat
storage tank and then, as DHW is used, the DHW will be heated by the heat exchange
coil in the heat storage tank. For most homeowners, 120
°
F temperature DHW is
adequate for normal household use. To provide DHW at this temperature the heat
storage tank temperature will need to be kept in a range of 120
°
F to 175
°
F. The
aquastat control settings shown on page 50 should give good results when the Tarm
EXCEL is fired on oil or gas in the “BACK-UP ONLY” mode.
49