Aerco BOILER MANAGEMENT SYSTEM II 5R5-384, Инструкция по установке, эксплуатации и обслуживанию

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PROGRAMMING BMS II
5. Press the
ENTER
key to store the change. The reverse video display will revert to the normal display
format indicating that the change has been store in memory. With the BMS II still in the
FIELD
ADJUST MENU,
proceed to the next paragraph and continue the set-up procedure.
Entering Header High Limit And Low Limit Temperatures
The Header High Limit and Header Low Limit are also selected using options in the
Field Adjust Menu
as
follows:
1. Using the ▲ or ▼ arrow key on the keypad, scroll through the menu until
HDR HIGH LIMIT
is
displayed in the first line of the VFD display. The second line of the display will show the currently
selected Header High Limit temperature (default = 200°F).
2. If the required
HDR HIGH LIMIT
is not displayed in the second line of the display, press the
CHANGE
key. The VFD display will switch to a reverse video format indicating that a change is in process.
3. Using the ▲ or ▼ arrow key, select required
HDR HIGH LIMIT
temperature
.
4. Press the
ENTER
key to store the change. The reverse video display will revert to the normal display
format indicating that the change has been store in memory.
5. Next, scroll through the
FIELD ADJUST MENU
until
HDR LOW LIMIT
is displayed in the first line of
the VFD display. The second line of the display will show the currently selected Header Low Limit
temperature (default = 040°F).
6. If the required
HDR LOW LIMIT
is not displayed, press the
CHANGE
key.
7. Using the ▲ or ▼ arrow key, select required
HDR LOW LIMIT
temperature
.
Press the
ENTER
key to
store the change.
8. With the BMS II still in the
FIELD ADJUST MENU
, proceed to the next paragraph and continue the
set-up procedure.
NOTE
If the Remote Signal is set to 4 – 20 mA, the
HDR HIGH LIMIT
temperature defines the 20 mA value and the
HDR LOW LIMIT
temperature defines the 4 mA value.
Selecting Remote Signal Type
The boilers connected to the BMS II can be controlled by either a 4-to-20 mA signal or a Modbus signal
from an Energy Management System (EMS). The Remote Signal type is selected in the Field Adjust
Menu as follows:
1. Using the ▲ or ▼ arrow key on the keypad, scroll through the menu until
REMOTE SIGNAL
is
displayed in the first line of the VFD display. The second line of the display will show the currently
selected Remote Signal (
4-20 mA
or
MODBUS
). The default is
4-20 mA
.
2. If the required
REMOTE SIGNAL
is not displayed in the second line of the display, press the
CHANGE
key. The VFD display will switch to a reverse video format indicating that a change is in
process.
3. Using the ▲ or ▼ arrow key, toggle the display to the required signal type
.
4. Press the
ENTER
key to store the change. The reverse video display will revert to the normal display
format indicating that the change has been store in memory.
5. This completes all required entries in the Field Adjust Menu. To complete Remote Setpoint Mode
setup, select the Boiler Operating Mode option as described below.
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