1. 2012 Technical Service Advisor’s Meeting
Product Updates
2012 Technical Service Advisor’s Meeting
Company Private

2. Condensing Unit Hail Guard Bracket
Brackets for flange sent for field test
Implemented 3/6/2012

3. Medium Rooftop Unit Hail Guard Tabs
New triangular tabs in production. Brackets for flange field test implemented 3/6/2012

4. Central Terminal Board
Problem Description: 3/8/2011, ETP reported failures on the
control boards due to “BAD SOLDER JOINTS” located between JMP5 & JMP6 jumper pads.
ETP reported finding a total of 8 boards with similar defects. Production date codes of 0911.
Corrective action: UTEC going to smaller pads to prevent bridging, which
caused a short. New boards are in production.

5. SRT Coil Leaks Header/Tubesheet
Problem Description:
Factory Coil leaks at the tube sheet.
Leaks occur at enlarged holes on the tube sheet where flame is penetrating, melting the aluminum fins and reacting with copper.
Research showed increased swedge to be primary fix.
Corrective Actions:
7/12/11 – ETP started using all extruded hole tube sheets on 074 condenser coil core. Leak rate improved by 75%.
Switch to all extruded holes in all SRT coils. One coil requires header insertion depth modification. 5 5

6. Rooftop Filter Driers Description of Issue Units Affected
Filter Driers becoming restricted shortly after start up
Units Affected
All RGS/RAS, RGH/RAH models: single circuit 7.5, 8.5 and 10 ton SRTs,
Current Status
Analysis of field returns shows that restrictions are caused by copper and iron debris.
Design change being made to double filter capacity in affected products by replacing current filter drier with filter drier. New filter drier is currently used in CAS splits.
Implementation dates: November 7 at CMX-B, November 17 at ETP
Next Steps
Team formed to identify root cause and corrective actions.
Check update.

7. Regal Beloit Condenser Fan Motor
Problem:
52Frame size condenser fan motor. Embrittlement of the screws. Screw holding bearings in place are breaking and falling out. Suspect motors from Dec 2011-March 2012
Corrective Action:
Inventory tested and repaired. Changed Screw Supplier and new screw torque test implemented.

8. CMX-B Excess Fin Lube (Current Project)
Part/Issue Description:
Problem Description:
Presence of excess fin lube from production process can cause perception of coil leaks, oil in drain pans and oil soaked packaging
Manufacturing is currently monitoring oil application process – adjusting the fin press process fin oil lube.
Corrective Actions:
CMX B working to improve process of fin lube application .
Best practice equipment for applying and controlling fin lube (based on other production facilities) is being investigated and procured.
ICP Approved date 11/10/11 …..Done
Implementation date 5/15/12 8 8

9. Defrost Board Problem Description:
This connection is for 3-5 ton, 575V units (Canada only).
The red wire was left hanging loose on other voltage size units and the field was making the connections.
Need to update.

10. Defrost Board

11. Condensate Pan Extension
Problem: condensation from tubing dripping onto base pan.
Units affected: all units with TXV’s.
Corrective action: factory to install extension for drain pan with protective edge. Extend wiring harness to prevent rubbing. In production at CMX on 4/2/2012

12. MRT Incorrect Accumulator Piping
4 way valve To
compressor
Description of Issue
The “IN” and “OUT” pipes on the accumulators in these units may be reversed. Suspected Population – 113 units, 2 accumulators per unit.
Models Affected
MRT, RHS
Serial Numbers: U to U
Containment
Supplier added visual aids and instituted auditing (100%)
CMX-B auditing incoming assemblies
Factory inventory reworked
Permanent Action
Redesigned changes on the accumulators.
Implement ECN by supplier. 11/15/11
Need to update.
CHS180
RHS
Inlet Diam. 1 1/8”
CHS240
RHS 12

13. Honeywell Economizer Control Adjustment Tool
Description of Issue
December 2009 Honeywell changed the HH63AW001 (w7212) and began shipping adjustment screwdrivers. Adjustment screwdrivers were not making it to plants. Service Techs using pocket screwdriver damaging potentiometers.
Current Status
MicroMetl shipping adjustment screwdrivers taped to control date code (unit S/N to be determined)
Fast Parts has screwdriver in stock.