17.12.
WOOD AS HEATING FUEL ............................................................................................................................................. 38
17.13.
PROLONGED POWER FAILURE .................................................................................................................................... 38
17.14.
CHIMNEY FIRES ............................................................................................................................................................. 38
17.15.
LOCAL FIRE DEPARTMENT ........................................................................................................................................... 38
18.
MAINTENANCE ........................................................................................................................................................................ 39
18.1.
MAINTENANCE OF THE EXCHANGERS ....................................................................................................................... 39
18.2.
CHIMNEY MAINTENANCE ............................................................................................................................................. 40
18.3.
SMOKE PIPE INSPECTION ............................................................................................................................................ 40
18.4.
DOOR GASKET MAINTENANCE .................................................................................................................................... 40
18.5.
DOOR ADJUSTMENT PROCEDURE ............................................................................................................................. 40
19.
REPLACEMENT PARTS .......................................................................................................................................................... 40
19.1.
DOOR GLASS ................................................................................................................................................................. 41
19.2.
GASKET .......................................................................................................................................................................... 41
20.
TROUBLESHOOTING .............................................................................................................................................................. 41
20.1.
20.2.
AIR DAMPER AND HOT WATER .................................................................................................................................... 42
20.3.
TEMPERATURE PROBE (RTD) ...................................................................................................................................... 42
20.4.
20.5.
UNIT OVERHEAT ............................................................................................................................................................ 43
20.6.
NO HEAT ......................................................................................................................................................................... 43
20.7.
COMMUNICATION ERROR ............................................................................................................................................ 44
20.8.
SMOKE SMELL ............................................................................................................................................................... 44
20.9.
20.10.
AUXILIARY OVERRIDE .................................................................................................................................................. 44
21.
EXPLODED VIEW AND PART LIST ........................................................................................................................................ 45
22.
23.
3