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Initial Configuration
TW Series Water to Water
TW Series Water to Water
6720220047 (2016/02)
Subject to change without prior notice
cooling only, or auto change modes. The mode
button is pushed until the circular LED is lit next to
the chosen control mode.
INITIAL CONFIGURATION
After power up and the steps above are completed
the configuration default settings may be changed.
Holding down the up and down arrow buttons
simultaneously for 10 seconds will put the
controller into the configuration mode. This mode
will be exited if no other commands are given
within a 10 second period.
Please review all the following steps and enter the
values you want to set at each display field to avoid
a time out period while configuring. This will also
provide a record of the initial configuration settings.
First display field
Temperature scale OC or OF. This is selectable by
using the up or down arrows. Once selected hit
“mode” key to advance.
Scale: ______________________
Second display field
Pump operation: Continuous or cyclic. This is the
load or source or both pumps output relay. This
may be set to continuous pump or cyclic pump
mode to cycle with the compressor by using the up
or down arrows. Once selected hit “mode” key to
advance.
Mode:______________________
Third display field
Change over dead band setting: This is selectable
from 1 to 6 degrees. This is adjustable from 1-6
degrees by using the up or down arrows. The dead
band setting is only used in the auto change mode
and defines the band where the unit will not
operate. This helps eliminate the possibilities of the unit
cycling from one mode to the other too quickly.
For example, on a heating \cooling residential
application this could be set as wide as 6 degrees.
On a pool heater application this could be set as
tight as 1 degree. Once selected hit the “mode” key
to advance.
Value:______________________
Fourth display field
Auto change over set point (S2). Adjustable from 55 to
85 degrees. Use up or down arrows to adjust. Hit the
“mode” key to advance. The auto changeover sensor
should be located in an area that will be indicative of
whether the unit should be in the heating or cooling
mode.
Value:______________________
Fifth display field
Test mode setting, (DE) delay or (ND) no delay: This
is utilized for testing the outputs of the controller
by eliminating the time delays. Use the up or down
arrows to select. The controller will automatically
revert to DE after one cycle to insure safety timings
are restored if installer \commissioner forgets to
reset to DE. The ND setting could be selected at
start-up to avoid prolonged waiting periods during
commissioning.
Once selected hit the “mode” key to advance.
Setting:______________________
Sixth display field
Compressor setting, (Si) single or (Du) dual. Use
the up or down arrows to select. Hit the “mode” key
to advance. This is only applicable on multi stage
units. If set to Si on a dual circuit unit the second
stage will not come on. Must be set to “DU” for al
TW models.
Setting:______________________
Seventh display field
Lead \ lag setting (dual compressor only). Set point is 0
to 14 days on lead compressor rotation
sequence. Use up or down arrows to select. Hit
“mode” key to advance. Must be set to “0” for all
TW models.
Setting:______________________
Eighth display field
Malfunction output setting, (Pu) pulsed or (St)
standard constant on. This sets the malfunction
output relay to mimic the fault blink code that is
causing the safety lock-out. This can be used for
remote monitoring and remote trouble shooting.
Use the up or down arrows to select. Hit the
“mode” key to advance.
Setting:______________________
The controller is now configured and is fully
operational.
A copy of this configuration sheet should be
left with the home owner or building manager
for their records of initial control settings.
