Hubbell-electric-heater-company T User Manual

OPERATING AND MAINTENANCE MANUAL FOR COMMERCIAL INDIRECT POWERED WATER HEATER ELECTRIC HEATER COMPANY BASE M

10 4. Install the combination temperature and pressure safety relief valve in the tapping provided. Note that this is required by law for safety co

11ELECTRICAL INSTALLATION 1. Connect electrical wiring from boiler controls and circulator pump to immersion thermostat. 2. If supplied with a

12 SECTION III - SCHEDULED MAINTENANCE AND OPERATION WARNING / CAUTION Before performing any maintenance procedure, make certain boiler water and

13ANNUAL INSPECTION 1. Flush tank as follows a. Shut off power supply. b. Close valve on hot water outlet piping. c. Open valve on drain pipi

14 SECTION IV – TROUBLESHOOTING Symptom Probable Cause Corrective Action / Remedy Tubes are fouled. Clean tubes per Section III, annual schedul

15BACK-UP ELECTRCIAL HEATER SYSTEM (if supplied) Symptom Probable Cause Corrective Action / Remedy Circuit breaker tripped at source. Reset cir

16 SECTION V - SERVICING & REPLACEMENT OF PARTS WARNING / CAUTION Before servicing or replacing any part make sure to turn the power supply

17HEATING COIL 1. Disconnect power from unit. 2. Shut off incoming cold and boiler water supply. 3. Attach hose to drain connection. 4. Lift m

18 SURFACE TEMPERATURE HIGH LIMIT CUT-OFF (if supplied) 1. Disconnect power from unit. 2. Remove access cover. 3. Disconnect the four (4) 14 gaug

19IMMERSION TEMPERATURE HIGH LIMIT CUT-OFF (if supplied) 1. Disconnect power from unit. 2. Remove access cover. 3. Remove high limit cover screw

2 HUBBELL ELECTRIC HEATER COMPANY P.O. BOX 288 STRATFORD, CT 06615 PHONE: (203) 378-2659 FAX: (203) 378-3593 INTERNET: http://www.hubbe

20 HEATING ELEMENT (if supplied) 1. Disconnect power from unit. 2. Shut off incoming water supply. 3. Attach hose to drain connection. 4. Lift

212 L1 L2 L3 L1 L2 Single Element Operation 3

22 L1 L2 L1 L2 Interlocked fo

23SURFACE MOUNTED THERMOSTAT (if supplied) 1. Disconnect power from unit. 2. Remove access cover and locate thermostat. 3. Disconnect the two (2

24 IMMERSION THERMOSTAT (if supplied) 1. Disconnect power from unit. 2. Remove access cover and locate thermostat. 3. Remove high limit cover scr

25SECTION VI – MISCELLANEOUS CHARTS AND FORMULAS FORMULAS

26 T Model – Coil Curves

3TABLE OF CONTENTS SECTION TITLE PAGE #

4

5SECTION I - GENERAL DESCRIPTION AND CONSTRUCTION GENERAL DESCRIPTION This book describes a packaged boiler water powered indirect water heater th

6 CONTROL THERMOSTAT The water heater is supplied with an immersion thermostatic switch. The thermostat can be adjusted through a range of 120° - 1

7 Temperature High Limit Switch As a safety device, either a surface mounted high temperature cut-off switch with manual reset, factory set at 190

8 SECTION II – INSTALLATION WARNING / CAUTION DO NOT TURN ON THE BOILER WATER SUPPLY to this equipment until heater is completely filled with wate

9 PIPING INSTALLATION NOTE: The most effective means for preventing deterioration from accelerated corrosion due to galvanic and stray curren