Tjernlund COP2 Constant Operating Pressure Exhaust Control 8504208 - Manual (Page 10)

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If voltage to and from the Transducer are in the ranges listed above, measure COP2 VFD output AC voltage at the Red and
WHT/RED stripe terminals with the Transducer tube still disconnected. Look for a reading of around 125 volts AC.
If around 125 VAC is measured check for voltage at the Red and White w/Red stripe leads in the j-box of the RT-Series electrical
whip. If the referenced voltage is measured check motor capacitor and verify reading of 5µF ± 5%. If the capacitor is within specs
look for around 125 VDC at the Red and White w/Red stripe leads within the motor enclosure. If this voltage range is present, the
RT-series motor is suspect and may need replacement. Remove and bench test with 115 VAC.
HOW TO OBTAIN SERVICE ASSISTANCE
1. If you have any questions about your COP2 or if it requires adjustment or repair, contact your installer, contractor or
service agency.
2. If you require technical information contact Tjernlund Products, Inc. at 1-800-255-4208 with the following information.
1. Model of the RT-Series Fan that COP2 is interlocked with as shown on the RT-Series nameplate.
2. Name and address of installer and any service agency who performed work on the system.
3. Date of original installation and dates any service work was performed.
4. Details of the problem as you can best describe them.
LIMITED PARTS WARRANTY AND CLAIM PROCEDURE
Tjernlund Products, Inc. warrants the components of the COP2 for one year from date of installation. This warranty covers defects
in material and workmanship. This warranty does not cover normal maintenance, transportation or installation charges for replace-
ment parts or any other service calls or repairs. This warranty DOES NOT cover the complete COP2 if it is operative, except for
the defective part.
Tjernlund Products, Inc. will issue credit or provide a free part to replace one that becomes defective during the one year warranty
period. Proof of date of the installation in the form of the contractor sales/installation receipt is necessary to prove the unit has
been in service for under one year. All receipts should include the date code of the COP2 to ensure that the defective component
corresponds with the complete unit. This will help prevent possible credit refusal.
1. Follow troubleshooting guide to determine defective component. If unable to determine faulty component, contact your
Tjernlund distributor or Tjernlund Technical Customer Service at 1-800-255-4208 for troubleshooting assistance.
2. After the faulty component is determined, return it to your Tjernlund distributor for replacement. Please include COP2 date code
component was taken from. The date code is located on the Electrical Box cover. If the date code is older than one year, you
will need to provide a copy of the original installation receipt to your distributor. Credit or replacement will only be issued to a
Tjernlund distributor after the part has been returned prepaid to Tjernlund and verified defective.
WHAT IS NOT COVERED
Product installed contrary to our installation instructions, altered, neglected or misused
Product that has been wired incorrectly
Any freight charges related to the return of the defective part
Any labor charges related to evaluating and replacing the defective part
REPLACEMENT PARTS
Component Part Number
24 Volt Transformer 950-2030
COP2 Pressure Transducer 950-9352
Heat Sync Cooling Fan T-Stat 950-8301
Heat Sync Cooling Fan 950-0020
COP2 Heater Interlock Control* CIC1
*NOTE: The CIC1 Accessory Control is
a standard UC1 Control with an included
relay