Bosch Greensource CDi TW Series Installation, Operation And Maintenance Manual page 28

Greensource CDi Series TW Model
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-changeover 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:______________________
Greensource CDi Series TW Model
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 all 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.
Subject to change without prior notice
Water-To-Water Unit Controller | 28
8733954853 (2020/04)