Accessory List

BB1200
F-27382-1 © Copyright 2006 TAC. All Rights Reserved. 19
TAC Erie™ Universal Reset Control
Model Chart
Specifications
The TAC Boiler Boss
®
BB1200 series universal
reset control is used to control boiler water
temperature applications. The supply water
temperature is automatically adjusted up or down
based on outside air temperature. As the outside
air gets colder the BB1200 raises the hot water
supply temperature through its dry contact output.
As the outside air gets warmer the BB1200
provides a lower water temperature based on its
control range. This is not a boiler operating
control.
Features:
• Boiler water temperature reset.
• Warm weather shutdown.
• Domestic hot water priority.
• Boiler low limit.
• Boiler supply and outdoor air sensors (OAS-1).
• LED display for boiler temperature and system settings.
• Burner LED.
• Three reset ratios.
• Test mode.
Model No. Description
BB1200 Refer to Specifications.
Inputs
Power input 24 Vac, class 2, 0.25 amps maximum (6 VA) @ 50/60 Hz.
Thermostat input 24 Vac, 60 mA dry contacts.
Priority zone input 10 DC, 2 mA dry contacts.
Temperature sensors 100kΩ @ 77°F (25°C) (Thermistor). Two OAS-1 included.
Outputs
Electrical Burner output (dry contacts): 24 Vac pilot duty class 2, 75 VA maximum.
Mechanical Boiler temperature range: 90 to 230°F (32 to 110°C).
Operating differential: 15 or 25 F degrees (8 or 14 C degrees).
Environment
Ambient temperature limits
Operating: 20 to 120°F (-29 to 49°C).
Shipping and storage: -40 to 140°F (-40 to 60°C)
Humidity 85% RH, non-condensing.
Locations NEMA Type 1.
Control Ranges
Outdoor temperature -50 to 80°F (-45 to 27°C).
Boiler temperature 90 to 230°F (32 to 110°C).
Operating differential 15 or 25°F (-9 to -4°C).
General Instructions Refer to F-27014.
1200