TW2000 WOOD–FIRED BOILER – INSTRUCTION MANUAL
TW2000 14 Jan-08
2.8 WIRING
The wiring diagrams for the controls on the Kerr TW2000 boiler are shown in Figures TW-2, 3,
5, and 6. Do not rewire or change the function of the controls on an existing boiler when adding
a Kerr TW2000 boiler. The electrical systems of both boilers must be powered from a single
branch circuit without exception.
NOTE: Most oil-fired boilers utilize a triple aquastat as shown in Fig. TW-2. No rewiring is
necessary in the oil boiler control.
To install the boiler as a free-standing unit see Fig. TW-4, TW-5 and TW-6.
NOTE: The aquastat may be marked “High” and “Low” opposite the diagrams. The diagrams
are correct.
ALL ELECTRICAL WIRING MUST CONFORM TO NATIONAL AND LOCAL CODES.
2.9 DEALER INSTRUCTIONS TO HOMEOWNER
1) Keep area around unit clean.
2) Use DRY wood only. Hardwood is preferred.
3) Load carefully.
4) Load level no higher than center of door.
5) Remove ash regularly as directed.
6) Watch for soot build up in smoke pipe.
7) Realize the danger of extreme overheating due to overfiring.
8) Danger of flue fire if poor fuel or poor maintenance produces creosote buildup.
9) Operation of unit during power failure. (i.e. manual operation of zone valves and flow
check valves).
10) When shutting down for extended periods, clean unit thoroughly.
11) Apply a light coating of motor oil to inside of boiler and other exposed interior surfaces to
protect against rust due to moisture from condensation.
12) Before reloading the boiler with wood, turn up the thermostat 2 to 3 minutes prior to
loading to establish the draft.
13) When reloading rake the ashes toward the front and place the new fuel load toward the
rear of the boiler.
14) If, under poor draft conditions, smoke comes out of the door when reloading, the cast
iron baffles may be moved forward on the ledge to allow a 3/4” gap behind the baffles.
This will allow smoke over the smoldering embers to escape through the gap when the
door is opened.
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