CleaverBrooks Hawk 1000, Руководство по эксплуатации

Страница: 63 / 82

Hawk 1000 Section 5 — Commissioning
Part No. 750-366 5-9
When steam pressure is greater than the low fire point, the firing rate will go to 0%.
When steam pressure is less than the high fire point, the firing rate will go to 100%.
5.5 Firing Rate Screen
From the Firing Rate screen the boiler controls can be toggled between manual and automatic operation. With
<Manual> selected, the actuators will remain in their current positions until moved manually by the operator
using the Control Output <Decrease> and <Increase> buttons.
Figure 5-15.
In Automatic mode, control output is based on demand; the actuators will be positioned according to the
currently active combustion curve.
While in Automatic the boiler can be forced to low fire by isolated 120VAC contact signal on digital input
I:5.4. The boiler will remain at low fire until this signal is removed.
Figure 5-16.
The Firing Rate screen also allows selection of Remote Setpoint or Remote Modulation for interfacing with a
Building Management System or other control system.