Rev 8/2014
PrecisionTemp, Inc • 11 Sunnybrook Drive • Cincinnati, Ohio, 45237 • 1-800-934-9690 •
fax 513-641-0733 40
SB-3 Circuit Board Replacement
Model: PT-200FT, PT-200RC & PT-56
Software version: All
Tools Required: Needle-nose pliers
SB-7 Auto-calibration service bulletin (match software version)
Process:
1. Turn booster heater power switch off.
2. Disconnect all electrical connectors at the circuit board.
3. Remove the circuit board. Needle-nose pliers can be used to remove the
circuit board nylon standoffs.
4. Install the new board with the LED’s located at the front of the drawer and
aligned with LED sockets on drawer.
5. Reconnect all connectors to the board. CAUTION: there are three two-pin
connectors. Be sure that the power supply connector (red and green wire)
goes to upper right corner (red connector) and the modulating valve
connector (black wire) goes to lower right (blue connector) (see Fig. 200-14).
The third two-pin connector is not used.
6. The booster heater outlet temperature has been preset to 4.20 VDC (192°F).
Refer to manual if a further adjustment is needed. See SB-10.
7. Perform auto-calibration per SB-7. Be sure to refer to present software
version for auto-calibration bulletin.
Kit Parts List:
EL 90XX Micro-controller chip-already installed in board
(9098 series is for PT-200RC & PT-56, 9097& 9099 series is for PT-200)
EL 1325 Standoffs (already installed in board)
AS 1841- Circuit board
Reference Illustrations:
200-14
To Next Page
Loading...