EWC Controls BMPlus 3000 Technical Bulletin page 2

BMPlus 3000 FIRMWARE/HARDWARE FEATURES BMPlus 3000 FIRMWARE/HARDWARE FEATURES
The panel has seven built-in Delay Timers
*Built-In
that insure safe & reliable operation.
Timer
Settings
* Start-up Delay Timer = 3 minutes-fixed
* Short Cycle Timer
* Change Over Timer = 4 minutes-fixed
* Opposing Call Timer = 20minutes-fixed
* 2nd Stage Timer = OFF, 7-42 min. -Adj.
* Supply Air Limit Timer = 3minutes-fixed
* Purge Delay Timer = 90 seconds-fixed
*Startup The panel will not activate a cooling
or heating operation until the startup
Delay
delay has expired. This occurs after
Timer
any initial power up, after any power
failure or after pressing the Reset
button for 7 seconds.
When the system is satisfied, the
*Short Cycle
panel will not resume the same mode
Timer
for a minimum of 3 minutes.
A built-in timer prevents the system
*Changeover
Timer from rapidly switching between
heating and cooling modes. At the
end of a call, a 4 minute timer is
started and the panel will not switch to
the opposing mode until the timer has
expired.
A 20 minute delay must expire, or the
*Opposing
active zone(s) must satisfy, before
Call
the panel will honor a thermostat
Delay Timer
demand to changeover to the
opposite mode of system operation.
The 2nd STAGE TIMER sets the
*2nd Stage
Timer / OAS amount of continuous call time in 1st
stage, before second stage heat or
21
28
14
cool is energized. NOTE: The
potentiometer also serves as
35
7
2nd stage Heat Outside Air
42
OFF
Changeover Setting.
2nd STAGE
Timer / OAS
The BMPlus 3000 can inhibit 2nd
OFF, 7 to 42
stage heat based on a Timer or
minutes or 7
O u t s i d e A i r T e m p e r a t u r e .
to 42
NOTE: An Optional OAS Sensor is
degrees F.
required to use the OAS feature.
Any setting
NOTE: 2nd stage cool delay defaults
below 7 is off!
to 15 minutes, if OAS is chosen to
DO NOT set to off
if using OAS
inhibit 2nd stage Heat.
The time delay of 3 minutes must
*Supply Air
expire before the BMPlus 3000 will
Limit
re-energize heat or cool mode. This
Delay Timer
occurs when the processor detects
the supply air temperature is higher
or lower than the High or Low
temperature limit settings.
*Purge Delay The last Damper(s) will be held Open
for 90 seconds at the end of every call
Timer
allowing a system purge into the last
zone that was calling.
2
EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362
= 3 minutes-fixed
120
12
Example:
Hi Temp. Limit =130°F
plus 2nd stg. T= 40°F
New Limit = 170°F.
the
Always reset the CPU
anytime you make
dip-switch changes to
the BMP3000 panel!
DO NOT use a sharp
object to press the
button! Your finger tip
will work fine.
Emergency
Heat
Switch
Cooling and Heating Limit Controls
T h e A d j u s t a b l e C o o l i n g L i m i t
43
potentiometer sets the supply air
40 46
temperature at which the cooling is
49
37
cycled off and the fan continues to run,
34 52
allowing the coil to warm up.
LOW TEMP
LIMIT
T h e A d j u s t a b l e H e a t i n g L i m i t
potentiometer sets the 1st stage heat
140
130
150
supply air temperature, at which the
160
heating is cycled off and the fan
170
110
continues to run, allowing the heat
HIGH TEMP
exchanger or coil to cool down.
LIMIT
The Adjustable 2nd stage heat
26
differential potentiometer sets the 2nd
19
33
stage heat supply air temperature, at
40
which the heating is cycled off and the
fan continues to run, allowing the heat
5
47
exchanger or coil to cool down.
2nd STAGE HEAT
DIFFERENTIAL
NOTE: Allows the supply air sensor to
be installed in the supply air plenum,
regardless of the coil/heat exchanger
configuration. Allows the installer to fine
tune virtually any 2 stage heating
system!
The separate reset buttons on the
old BMP3000 have been replaced
Reset
by a single button with dual
BUTTON
functions. Momentarily pressing the
RESET button clears the built-in timers
controlling the Startup delay timer,
RESET
Short cycle timer, W2 timer, Supply air
sensor timer and the Changeover
timer. This enables you to test the
installation faster.
observed when using this button.
Pressing the RESET button for 7
seconds will reset the CPU for
the entire zone system.
An On-Board Switch is provided that
allows the Customer to set the system
to the Emergency heat mode.
This switch is shown in the NORMAL
EM position.
This switch would be used for Heat
Pump applications where the
Customer chooses to use Regular
NORM
Heat/Cool thermostats instead of
Heat Pump thermostats.
E-Mail- info@ewccontrols.com
Caution should be