Hearth and Home Technologies BH 105 manual Design

Assembly

Refer to the illustration on page 3 to identify the compo- nents listed below:

1.Install the control board cover as well as the access cover located on the feeder cover.

2.Install the spring handles provided with the unit on the ash door, firebox door and the heat exchanger cleanout rod handles. (Fasten handles by turning them counterclockwise and pushing inward simultaneously).

3.Install 3/4” MPT boiler drain in the fitting as shown.

Note: Use pipe thread sealant or teflon tape on ALL threads before connections are made.

4.Install 3/4” MPT pressure relief valve as shown.

5.Install the 1/2” MPT aquastat well in fitting as shown, then place aquastat in the well and fasten with a zip tie. The aquastat sensor is located under the top sheet metal jacket.

6.Install the 1/2” MPT temperature/pressure gauge in fitting as shown.

7.Locate and install outside air temperature sensor. Loca- tion of this sensor should be on the north side of the home or building and out of direct sunlight. Use the cable supplied with the boiler to attach the sensor to the terminals located on the hopper. (Place at the back side just above and to the right of the main power connection box) The wires can be connected to the sensor with the connectors supplied. Wire nut or butt splice connectors could also be used. The con- nections at the boiler can be done with the two 1/4” female push on connectors supplied.

8.Fasten the conduit to the ash base with the clamps provided.

Design:

The first thing that needs to be done is deciding where and how the boiler will be installed.

Things that need to be taken into consideration are the intended use of the boiler for example, is the boiler going to be used as your primary heating system or is it going to be used as a secondary or backup heating system. If it is to be used in conjunction with an existing oil or gas boiler system will it be piped in parallel or in series? The answers to these and other questions can be determined by talking to your certified dealer or a qualified HVAC or plumbing contrac- tor. This will ensure that the boiler is installed and piped to accommodate your needs and expectations.

Consideration must be given to the venting as well as electrical and clearance requirements. (Clearances must be maintained to combustibles and also for service)

Make sure fans are not used in the fuel storage area, unless they are installed so as not to create a negative pressure in the room where the solid fuel burning appliance is located.

	MINIMUM NON-COMBUSTIBLE FLOOR PROTECTION AREA
	NON-COMBUSTIBLE	42" CANADA
	FLOOR PROTECTOR
	40"USA
	55" USA & CAN
	40" USA	42" CANADA
16" USA	18" CAN
	55" USA & CAN

Floor Protection:

The striped area indicates the minimum required floor protec- tion area if the boiler is going to be placed on a combustible floor. It requires 40” X 55”(US) or 42” X 55”(CAN) of non combustible floor protection as shown. 16”(US) or 18”(CAN) of the floor protection must be in front of the firebox door as shown. Floor protection must be a minimum of 26 gauge sheet metal. Floor protection must also be provided under any horizontal run of vent pipe equal to the outside diameter of the venting plus 2” to each side.

Example: 4” type “L” or “PL” vent pipe has an outside diam- eter of 4-1/2” + 2” on each side equals a protected floor area of 8-1/2” wide underneath the horizontal run.

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