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No, continuity is not present: Confirm that burner is not firing at capacities or temperatures exceeding Inducer limits.  Check for
excessive vent pipe runs, high winds, plugged / kinked Fan Prover sensing tube or a faulty Fan Prover switch. Perform “PSA-1
Fan Proving Switch Adjustment” procedure on page 12 to verify if set point adjustment is necessary on the PSA-1 Fan Prover. If
everything checks out okay, replace PSA-1 Fan Prover.

Yes, continuity present: Recheck interlock wiring and burner control(s). 

HOW TO OBTAIN SERVICE ASSISTANCE

1.

If you have any questions about your UCRT Universal Control or if it requires adjustment or repair, we suggest that you con-
tact 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 Inducer that UCRT is interlocked with as shown on the label attached to Inducer.

2. Name and address of installer and any service agency who performed work on UCRT or Inducer.

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 UCRT 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 UCRT 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 UCRT 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 UCRT date 

code component was taken from.  The date code is located on the Electrical Box coverplate.  If the date code is older than 1 
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

Product that has been damaged by a malfunctioning or maladjusted burner

Any freight charges related to the return of the defective part

Any labor charges related to evaluating and replacing the defective part

REIS NOT COVERED

EWH

REPLACEMENT PARTS

Component

Part Number

Universal Control Circuit Board

950-8804

UCRT Speed Control

950-8601

15

TJERNLUND LIMITED ONE YEAR WARRANTY

Tjernlund Products, Inc. warrants to the original purchaser of this product that the product will be free from defects due to faulty material or work-
manship for a period of (1) year from the date of original purchase or delivery to the original purchaser, whichever is earlier.  Remedies under
this warranty are limited to repairing or replacing, at our option, any product which shall, within the above stated warranty period, be returned to
Tjernlund Products, Inc. at the address listed below, postage prepaid.  THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE
DESCRIPTION ON THE FACE HEREOF, AND TJERNLUND PRODUCTS, INC. EXPRESSLY DISCLAIMS LIABILITY FOR INCIDENTAL OR
CONSEQUENTIAL DAMAGES ARISING FROM THE USE OF THIS PRODUCT.  THIS WARRANTY IS IN LIEU OF ALL OTHER EXPRESS
WARRANTIES AND NO AGENT IS AUTHORIZED TO ASSUME FOR US ANY LIABILITY ADDITIONAL TO THOSE SET FORTH IN THIS LIM-
ITED WARRANTY.  IMPLIED WARRANTIES ARE LIMITED TO THE STATED DURATION OF THIS LIMITED WARRANTY.  Some states do
not allow limitation on how long an implied warranty lasts, so that limitation may not apply to you.  In addition, some states do not allow the
exclusion or limitation of incidental or consequential damages, so that above limitation or exclusion may not apply to you.  This warranty gives
you specific legal rights and you may also have other rights which may vary from State to State.  Send all inquiries regarding warranty work to
Tjernlund Products, Inc. 1601 9th Street, White Bear Lake, MN 55110-6794.  Phone (651) 426-2993 • (800) 255-4208 • Fax (651) 426-9547 •
Email [email protected].

Summary of Contents for UCRT

Page 1: ...ESE INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION ADJUST MENT SERVICE OR MAINTENANCE POSSIBLY RESULTING IN FIRE ELECTRI CAL SHOCK CARBON MONOXIDE POISONING EXPLOSION PERSONAL INJURY OR PROPERTY DAM...

Page 2: ...ight carrier and your distributor immediately and file a concealed damage claim INSTALLATION RESTRICTIONS 1 The Pre Cycle Prover Status Check is deactivated from the factory on the UCRT Natural chimne...

Page 3: ...ED POWER LED DRY 24 V 115 V APPLIANCE INTERLOCK RELAY INDUCER MOTOR RELAY A B 1 2 3 4 L N J1 J2 XL XN P1 P2 C GND F 1 9 N M MTR J1 J2 CALL JUMPER Used when the call signal is used as the proven return...

Page 4: ...be cleared NOTE The UC1 board must have its 115 VAC power supply present when any of the 1 8 dip switches are moved back to their original position for the fault code to clear PRE POST PURGE AND PROVE...

Page 5: ...VOLTAGE SOURCE IS PROVIDED TO TERMINAL 3 120 VAC 10 50 60 Hz MOTOR 1 H P MAX 120 VAC 50 60 Hz USER PROVIDED 24 VAC AT TERMINALS 1 2 1 CALL HOT 2 COMMON CONTROL REQUIRES 5 mA 24 VAC TO TRIGGER MOVE RE...

Page 6: ...ed in these instructions call Tjernlund s Customer Service Department toll free at 1 800 255 4208 for assistance IMPORTANT If the call for heat interlock signal or 115 VAC power is removed the UC1 boa...

Page 7: ...heaters To interlock a millivolt water heater and a 24 115 VAC furnace or boiler add the WHKE and MAC1E MILLIVOLT HEATER INSTALLATIONS Each millivolt appliance interlocked with the UC1 must have its o...

Page 8: ...arity sensitive NOTE If burner safety control goes out on lockout the Inducer will continue to run as long as a call for heat is present UC1 UNIVERSAL CONTROL CONNECTED WITH A 24 VAC ELECTRONIC IGNITI...

Page 9: ...und wires in UCRT to supply ground Important Installer must supply overload and disconnect protection 5 If not previously completed connect Black White and Red leads from UCRT to like colors in Roofto...

Page 10: ...ol goes out on lockout the Inducer will continue to run as long as a call for heat is present UC1 UNIVERSAL CONTROL CONNECTED TO A HONEYWELL R7184 SERIES OR EQUIVALENT PRIMARY CONTROL WITH A LINE VOLT...

Page 11: ...lue and Yellow leads from UCRT to PSA 1 Fan Prover switch Prover Leads are not polarity sensitive NOTE If burner safety control goes out on lockout the Inducer will continue to run as long as a call f...

Page 12: ...to the ground screw in the Rooftop Inducer whip 4x4 weatherproof box Connect Blue and Yellow leads from UCRT to PSA 1 Fan Prover switch Prover Leads are not polarity sensitive UC1 UNIVERSAL CONTROL C...

Page 13: ...that a slight positive draft neutral to 0 01 W C or 2 5 Pa is measured at the appliance draft sampling location Flue gases should just start to spill from the draft hood draft diverter or barometric d...

Page 14: ...original position the fault code will be cleared NOTE The UC1 board must have its 115 VAC power supply present when any of the 1 8 dip switches are moved back to their original position for the fault...

Page 15: ...4 Red will be reset if the call for heat interlock signal or 115 VAC power is removed If the fan prover makes on start up but breaks for more than 10 seconds during the burner cycle LED 4 will flash...

Page 16: ...ined return it to your Tjernlund distributor for replacement Please include UCRT date code component was taken from The date code is located on the Electrical Box coverplate If the date code is older...

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