Rev 8/2014
PrecisionTemp, Inc • 11 Sunnybrook Drive • Cincinnati, Ohio, 45237 • 1-800-934-9690 •
fax 513-641-0733 65
Preventive Maintenance
1. Inspect and clean all cabinet louvers and interior of cabinet of dust and debris.
**
2. Remove blower hood, clean all dust and debris from baffles.
Inspect top of heat exchanger for carbon build up. Clean debris from blower
squirrel cage
****
3. Inspect for burnt or brittle wiring and any heat damage to
interior components. Inspect for any water damage or
corrosion to electrical components and connections.
***
4. Check overall operation of flow through and recirculation
models making sure final rinse temperature of 180 degrees
reached. For PT-200FT models incoming water temperature should be 120-140
degrees. Check water flow rate, approximately 12-15 flashes
(4-5gpm) for FT standard flow through booster and 6-9 flashes (2-3gpm) for a
FTOR low flow
booster during the
dish machine rinse cycle.
**
5. Inspect for clean combustion, viewed through sight glass;
blue flame not yellow.
***
6. Inspect exterior of copper heat exchanger for dark discoloration,
solder melted from front support tube (PT-200) and silver ash on floor of cabinet.
Call PrecisionTemp if any of these symptoms are observed.
***
7. Inspect for internal water leaks.
**
8. Inspect for excessive positive or negative air; Exhaust Blower cage will turn
counter clockwise, with booster power off. Call PT with questions.
***
9. Inspect overall conditions surrounding booster for excessive
water abuse, cleanliness and items stacked around booster
restricting air flow.
*
10. Check expansion tank pressure. Pressure should be maintained at
approximately 40-80 psi depending on water pressure .
***
11.
Inspect and or clean all water filters, chemical disbursing equipment, etc. to
avoid restricting water flow to dish machine.
**
12. Perform dish machine maintenance, clean strainer screen, rinse nozzles and
inspect rinse arm gaskets if applicable.
**
* = Weekly **= Monthly *** = Quarterly ****= Annual
