AERCO BMS 168 - Manual (Page 46)

5.4.1 C-More Control System PWM
Setup
For PWM communication, each boiler’s C-
More Control System must have the
Configuration Menu items properly set up as
follows:
1. Boiler Mode – This option must be set
for Direct Drive.
2. Remote Signal – This option must be
set for BMS (PWM Input).
Refer to Operation and Maintenance
Manual GF-109 (KC1000 Boiler) or GF-110
(Benchmark Boiler) for instructions on
changing menu items.
NOTE
AERCO Modular Control Systems
are equipped with Honeywell (Blue)
or Fire-Eye (Red) Temperature
Controllers.
5.4.2 Modular Control System PWM
Setup
For proper PWM communication, each
boiler’s Modular Control System Temp-
erature Controller must be properly
addressed and configured as follows:
5.4.2.1 Temperature Controller
Addressing
For proper PWM communication, each
boiler’s Temperature Controller must be set
to a comm. Address of 32. This is true
whether the boilers are space heating or
Combination (CCP) types.
If the individual boiler’s temperature
controller is not correctly addressed, the
secure menu of the temperature controller
must be entered in order to change the
address. Refer to Operation and
Maintenance Manual GF-106 (KC1000
Boiler) or GF-107 (Benchmark Boiler) for
detailed procedures.
5.4 .2.2 Configuring the Temperature
Controller
Once addressing has been completed, it is
necessary to perform two more
configuration steps to each boiler’s
temperature controller. Each temperature
controller must be in the Remote and
Auto/Off (Manual) modes for proper
communication and operation with the BMS.
Refer to Operation and Maintenance
Manual GF-106 (KC1000 Boiler) or GF-107
(Benchmark Boiler) for detailed procedures
to set each boiler to the Remote and
Auto/Off (Manual) modes.
5.5 S
YSTEM
I
NITIALIZATION
AND POLLING
In order for the BMS to recognize each
boiler, a closed signal loop must exist
between the BMS and the boiler.
Initialization and polling is accomplished by
performing the following simple steps:
1. Set the ON/OFF switch on each boiler
control panel to ON.
2. Turn on the BMS by pressing the ON
key. The BMS will automatically poll
(recognize) each boiler at prescribed
intervals.
3. Check the yellow REMOTE (REM) LED
on each boiler control panel to ensure it
is ON. This indicates that the boiler is
now being controlled by the BMS.
4. If any of the boiler REMOTE LEDs are
off, check to ensure that:
(a) Boiler AC power is not turned off.
(b) Boiler is not shut down due to a
fault.
(c) The BMS-to-boiler signal loop is not
broken.
The BMS will continuously poll the
boilers at prescribed intervals.
Therefore, if a boiler is placed off-line
and then placed back on-line, it will
again be recognized by the BMS during
the next polling cycle.
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