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The Bimini Buddy is a factory assembled near boiler piping module that is designed for use with Crown Bimini (BWC)
series boilers. The central component in this product is a hydraulic separator that is designed to assure that the minimum
required flow through the boiler is always maintained regardless of the flow through the heating system. This separator
is also used for air removal as well as the connection point for the expansion tank. There are four versions of the Bimini
Buddy:
•
BB100H
- Provides hydraulic separation, air elimination, and expansion tank location for heat-only systems.
•
BB100I
- In addition to BB100H features, the BB100I is also equipped with a 120VAC three way diverting
valve that allows the boiler output to be directed to either the heating system or an indirect water heater.
•
BB100C
- In addition to BB100H features, the BB100C also includes a 120VAC three way diverting valve
that allows the boiler output to be directed to either the heating system or an integral plate heat exchanger for
domestic hot water (DHW) production. The BB100C is also equipped with a flow switch to initiate a call for
DHW production. DHW temperature is controlled by modulating the boiler supply temperature.
The Bimini Buddy has not been evaluated for use with any boilers not explicitly listed in Table 2.0.
Model
Compatible Boilers
Width (W), in.
Height (H), in.
Depth (D), in.
Weight, lbs
Max Expansion Tank Dia. (DM), in.
Maximum Operating Pressure
Maximum Operating Temperature
3-Way Valve Motor Rating
Flow Switch Set-point
Flow Switch contact Ratings
I. Product Description
II. Specifications
Table 2.0: Basic Specifications
BB100H
BWC070 , BWC090, BWC120, BWC151
24
2
BB100I
BB100C
12
19-3/4
12-1/2
27
11
50 psi
200F
120VAC, 50/60Hz, 6.5W
(Energized for CH Demand)
0.50 GPM
20VA Pilot Duty at
120VAC
30
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