EWC Controls ULTRA-TALK 3000 Technical Bulletin page 5

LCD Screen Programming
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4 Button LCD
Programming
The UT3000 utilizes a zone weighting feature. You
can select the weight for each zone independently.
For example, if zone 1 has more heat loss/gain than
zone 2 or zone 3, you can now assign it more
weight. 3 zone default weight values are 70/15/15.
2 zone default weight value is 60/40.
Z1 WEIGHT 70%
Select the Weight value that will be applied to Zone 1
Thermostat. You may select from a range of 0% to 100%. The
factory default value is 70%. The sum of all the zones weights
can add up to 100% or less.
Z2 WEIGHT
Select the Weight value that will be applied to Zone 2
Thermostat. You may select from a range of 0% to 100%. The
factory default value is 15%. The sum of all the zones weights
can add up to 100% or less.
Z3 WEIGHT
Select the Weight value that will be applied to Zone 3
Thermostat. You may select from a range of 0% to 100%. The
factory default value is 15%. The sum of all the zones weights
can add up to 100% or less.
Total ZONES = 3
Select the total number of zones (thermostats) you
have connected to each UT3000. You may select 2
zones or 3 zones. The factory default value is 3 zones.
It may be necessary to assign very low weight values to
some or all zones zones, in order to avoid air noise
issues. The total assigned weight values do not have to
equal 100%, but going above 100% is not permitted.
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EWC Controls Inc. 385 Highway 33 Englishtown, NJ 07726 800-446-3110 FAX 732-446-5362
The UT3000 Zone Demand Logic is unique. The assigned weight value of one or more zones is multiplied by
the demand percentage observed from each zone thermostat. The resulting value becomes the initial
"System Demand" to the HVAC system. The PID loop (if enabled) takes over from there and increases
(ramps) the System Demand output in an attempt to match the actual supply air temperature to the active
Target Set-point. If the Target set-point is matched, the UT3000 will stop ramping.
Use the Forward & Back buttons to
navigate thru the Menu Features.
Use the Up & Down buttons to change
or adjust the options available in that
feature.
Place a check mark next to each
selection or write the value in the box for
reference!
future
15%
15%
LIMIT SAS PID
Select "N" for NO, if you want the UT3000 to boost the BTU
capacity of the HVAC system, above the active zone(s)
calculated demand. The PID Loop is allowed to ramp (triple) the
sum of one or more zone weight values, multiplied by the
observed demand value of each active zone. See page 16. The
UT3000 System (SYS) demand output value, is based on the
sum of one or more zone assigned weight values, multiplied by
the observed demand values of each active zone. NO, is the
recommended setting for Daikin communicating Inverter AC/HP
& gas Modulating systems. Note: The Boost process (point
adding) can be interrupted.
Step 14
YES, if you wan to disable the PID loop.
LIMIT SAS PID
Select "Y" for YES, if you do not want the UT3000 to boost the
BTU capacity of the HVAC system, above the active zone(s)
calculated demand. See page 17 . This will limit the UT3000
Step 15
System (SYS) demand output value, to the base sum of one or
more zone weight values, multiplied by the observed demand
value of each active zone. Basically, the UT3000 will not boost
(triple) the sum of the zone demands. YES, is the
recommended setting for communicating two stage systems.
DMP DFLT
Step 16
Change the default position of the zone dampers when the HVAC
system is idle. The factory default is to "OPEN" all zone dampers
when idle. Select "CLOSE" if desired and make sure the HVAC
system's purge cycle is set for no longer than 90 seconds. Setting
"CLOSE" on a sub-panel will only apply to the zone dampers
connected to that specific sub-panel.
W2 OT LOCKOUT
Step 17
W2 Lockout feature allows the installer to prevent Auxiliary Heat
from energizing above a selected outside temperature. This is a
energy saving code requirement in some states.
Ultra Talk
The final program screen displays the code version of your UT3000. It may
be different than shown above. No further action is required. Leave the
buttons alone for 10 seconds and the LCD screen will resume scrolling.
The programming is complete and the UT3000 will store all settings into
permanent memory.
N
See page 4, Step 11.
Y
OPEN
50°
V 1.82
E-Mail- info@ewccontrols.com
Step 18
Select "Y" for
Step 19
Step 20
Step 21
Finish