Cumberland EDGE 890-00601, Инструкция по установке и эксплуатации

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19
Heaters operation
Topics Covered in this Chapter
▪ Heater operation: how it works
▪ Heater page and tile information
Heater operation: how it works
Heating systems are meant to maintain house/barn or zone temperatures close to the house/barn set
point.
The EDGE controller can handle different types of outputs for Brooder:
• On-Off a relay for a single capacity heater
• Variable (modulated, with or without relay)
• Dual intensity High-Low (2 relays: 1 relay =Low, 2 relays =High)
A heater output can activate many types of devices such as gas heaters, Brooders, hot air furnaces, elec-
tric radiant units, and modulating hot air furnaces and modulating gas heaters.
Heating operation depends on the following:
• House/barn temperature
• House/barn set point
• Control mode
• Relative humidity
Heater operation logic
To operate a heater, the controller refers to the average reading of the temperature sensors assigned to
the heater. The operating temperatures of the heater can either be related to the house/barn set point
with and offset, which means that heater operational temperatures are automatically adjusted when the
house/barn set point changes. House/barn set point can also be dictated by a curve. A change to the
house/barn set point induces all heating operation reference temperatures to shift accordingly. There is
no restriction to the start temperature, except for the minimum and maximum settings.
Zoned heating
Each zone can be covered by a heating system and assigned to zone temperature probes. These zones
are related to a zone heater that might be turned on and off depending on the desired temperature in the
zone. Usually, zones work with the same settings, but each zone can have its heat start/stop tempera-
tures related to the house/barn set point
Electric radiant
The EDGE controller can use its silicon controlled rectifier (SCR) to drive electric heater power outputs for
devices such as electric heat coils or electric radiant. Then the output can have a variable intensity.
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