Post Conversion Checkout - Trane CVRC-M-1D Manual

CVRC-M-1D
Post-Conversion Checkout
Following are recommended checkout procedures for the converted starter
panel and newly-installed FastPak™ control panel.
Caution:
To prevent machine damage, contact a qualified service organization
to perform the checkout procedures described in this section.
Successful completion of these operational checks assures that the Fast-
Pak panel is properly installed, that all required starter and chiller modifica-
tions are complete, and that the chiller is functioning normally.
An important aspect of the chiller maintenance program is the regular com-
pletion of records. Attached are copies of the:
•
"Water Cooled Chillers with FastPak Commissioning Checklist & startup
Test Log"
•
"startup Test Log for Water Cooled Chillers with FastPak Control Panels"
•
"FastPak Settings Group Menu Record"
It is recommended that these forms be used as it will assist with the startup
and in the future can be reviewed to identify any developing trends in the
chiller's operating conditions.
1. Verify all wiring is connected correctly and numbered properly.
2. When all electrical connections are complete, close the main power
supply disconnect switch(es) to "power up" the control panel.
3. Setup and Calibrate the FastPak panel's operating controls. See the
"Operation-Operator Interface" portion of this manual for assistance.
Note: Unit type must be setup as FastPak Water Cooled.
4. If installed, check and adjust the travel of the new stepper electric vane
actuator before connecting it to the guide vanes; to do this:
•
Choose Inlet Guide Vane Output Type <Stepper Motor> from the
Machine Configuration menu and Vane Control <Manual> from the
Service Test menu. Verify that actuator operates from 0-100% (0-5"
stroke) open.
•
Connect the vane linkage to the actuator motor.
•
In the Field startup Service Setting Group, set the Inlet Guide Vane
(IGV) Maximum Travel Setpoint to the previously measured stroke (see
Actuator Mounting in the Installation Manual) X 10000 steps (i.e., a 5"
stroke equals 50000 steps).
•
In the Service Tests Group, change the vane control status to manual,
go to the next menu and increase vane position slowly until the vanes
are 100% open. If the vanes are not open, increase the IGV Maximum
Travel Setpoint by 1000 steps. Repeat this procedure as often as
necessary. The vane position will not correspond to the percentage
shown on the screen.
Caution:
The IGV actuator may go beyond the designed travel limits of the link-
age. Failure to properly identify the fully open position can cause the
actuator to over travel and break the vane linkage.
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