Brochure

Quality HVAC Controls
13
The system 3000 injection Pump Mixing Control with reset
provides control of the water temperature in the secondary
(radiant) loop of a heating system, based on outdoor air
temperature and design temperature settings using an
injection pump. It also provides protection against boiler
condensation by monitoring and controlling the return water
temperature.
The System 3600 3-way Mixing Valve Control with reset
provides control of the water temperature in the secondary
(radiant) loop of a heating system. The system applies
accurate proportional control to 3-way or 4-way mixing valves
based on indoor/outdoor reset temperatures. It also provides
protection against boiler condensation by monitoring and
controlling the return water temperature.
Injection pump mixing
control
Valve mixing
control
Injection Pump Mixing Control
Model Description
BB3000 Indoor/Outdoor reset injection pump mixing control
Injection Pump Mixing Control
Model Description
BB3600 Indoor/Outdoor reset 3- or 4-way valve mixing control
Features
• Boiler low temperature return
protection
• Built in transformer and relays
• Exclusive “Sure Start” pump control
• Pump “Exercise” cycle
• Large, bright LED display
• Exclusive boiler short cycle protection
• Priority inputs
Features
• Boiler low temperature return
protection
• Built in transformer and relays
• Accurate proportional control of mixing
valve
• Large, bright LED display
• Exclusive boiler short cycle protection
Injection Pump and Valve Mixing Controls