Βρυτε Μαγνυμ | Page 25 |
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temperature is less than 140°F (60°C), internal mixing will keep the outlet temperature at
The manual reset high limit is on the outlet of the Brute Magnum. Set the manual reset high limit at about 20°F (11°C) higher than the highest expected outlet temperature, to avoid nuisance lockouts
5.4.2Internal Water Heater
Temperature Control
When an external control is not used, the circulator between the heater and the storage tank must run continuously, so that the heater’s temperature control can detect and control the water temperature in the storage tank. The Brute Magnum water heater’s temperature control is adjusted to its lowest temperature position when shipped from the factory. This is the preferred starting point for setting the temperature control.
The Brute Magnum temperature control measures temperature on the heater inlet, sensing return water temperature. If the return water temperature is less than 140°F (60°C), internal mixing will keep the outlet temperature at
The manual reset high limit is on the outlet of the Brute Magnum. Set the manual reset high limit at about 20°F (11°C) higher than the highest expected outlet temperature, to avoid nuisance lockouts.
Caution
Should overheating occur or the gas supply fail to shut off, turn off the manual gas control valve to the appliance.
The offset determines where the throttling range begins.
The throttling range is the temperature range through which the unit will modulate from minimum to maximum firing rate.
Important Note: These control parameters work together. Therefore, setting one parameter may have an affect on another. Figures 14, 15 and 16 show the relationships between these settings. Figure 14 follows the examples that are shown in the following sections, and Figures 15 and 16 are examples of how the parameters can interfere with each other.
5.5.1Temperature Setpoint
The temperature setpoint is the point at which the temperature control relay will be
Note: Jumper must be in “Reverse Acting” mode, or unit will not operate properly.
Figure 13. Proportional Control.
5.5Temperature Control Features
The Brute Magnum temperature control is
versatile and will allow the user to better match the modulating control to the application. Settings that can be changed are temperature setpoint, differential, offset, throttling range, and minimum output.
The temperature setpoint is the setting at which the unit will shut off, having satisfied the controller’s call for heat.
The differential determines how far the temperature in the Brute Magnum can fall before energizing again.
5.5.2Differential Setting
The differential is the difference in temperature settings when the temperature control’s relay is energized and
