NTI S Series Installation And Operation Instructions Manual

Contents

Indirect Water Heaters Installation and Operation Instructions Trin & Stor19Figure 4-1 Reinstalling the SL Series Heat Exchanger Installation Checklist 1. Turn off power to unit and heat source.2. Shut off water supply to tank and boiler.3. Allow appliance to cool before servicing.4. Remove heat exchanger coil from the tank.5. Flush inside of heat exchanger with water.6. Rinse outside of heat exchanger with waterand scrub with soft bristled brush.7. Install heat exchanger. Ensure o-ringhousing is installed properly.8. Insert and secure the bolts to the nuts one ata time in the following manner:9. Place the nut beneath the flange opening.10. Hold the nut in place with one hand - insertthe bolt with the other.11. Be sure to place bolts in all of the openings.12. Thread the bolt into the nut and tighten inproper order as shown (same as care tires).Excessive force is not required to sealproperly.13. Turn on water and bleed air from system.6.0 PARTS LISTTable 6-1 Indirect Water HeaterItem Part # Models Description1 84156 All Series (S, S-SR,SL) Relief Valve, T&P, ¾", 150 psi2 84158 All Series (S, S-SR,SL) Controller, Water Heater, TPI3 84217 SL-35, SL-50 Coil, 35/50 Gal4 84218 SL-70 Coil, 70 Gal5 84219 SL Series O-ring 6 1/4" ID for Coil6 84220 SL Series O-ring 6 3/4" ID for CoilTrin & Stor parts availableat any stocking wholesaler.Installers needing technicalassistance can contact NTIdirectly at 1-800-688-2575.7.0 TROUBLESHOOTINGLocate the TPI indicator light at the top of the case as shown. Refer to Table 7-1 for TPI troubleshooting guide.Figure 7-1 TPI Thermostat Indicator Light StatusUnlit No power to unit.Solid Green Powered.Temperature is in range.No demand. Demand satisfied.Pump/TT output should be open.Flashing Green Calling for heat.Temperature is out of range.Pump/TT output should be closed.Flashing Red TPI has sensed failure.Replace TPI module.Indicator Light

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