Lochinvar Commercial Electric Water Heaters manual

1 INST ALLA TION AND SER VICE MANUAL SHP-I&S-02 COMMERCIAL ELECTRIC W A TER HEA TERS 52, 82, 1 19 Gallon, 9 kW - 54kW Input Models FIG . 1 Fr ont V iew V ertical Round Models Installation and serv ice must be performed by Qualified Serv ice P ersonnel Only . W ARRANTY Factory war ranty (shipped w ith unit) does not apply to units improperly ins[...]

2  W ARNING: CONTENTS W ar ranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Safety W arnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Checking the Equipment . . . . . . . . . . . . . . . . . . . . . . . . .1 Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

3 CODES The equipment shall be installed in acco rdance with those installation regulations in forc e in the local area where the installation is to be made. These shall be carefully followed in all cases. A uthor ities having jurisdiction shall be consulted befor e installations are made. I n the absence of such requir ements, the installation sha[...]

4 CLEARANCES FROM COMBUSTIBLE CONSTRUCTION FIG. 2 Clearances from Co mbustible Construction T ABLE - A CLEARANCES FROM COMBUSTIBLE CONSTRUCTION: Right Side - 0" Rear - 0" Left Side - 0" Fr ont - 18" (45cm) for serv ice access t o contr ols and heating elements T op - 12" (30cm) suggested for service access to piping and wat[...]

5 INLET AND OUTLET CONNECTIONS For ease of ser vice, install unions on the c old water inlet and hot water outlet of the water heater . The cold water inlet connection is located on the lo wer left front side of the water heater . A manual shutoff valve should be installed upstream on the cold wat er source as an isolation device. The hot water out[...]

6 ELECTRICAL CONNECTIONS All installation proc edures in volving electric power connection should only be performed by a trained, certified electricians. FIG. 4 Electric P ower Co nnections - Electr ical Control Pa n e l  W ARNING: W A TER HEA TER IS EQUIPPED FOR OPERA TION ON ONE V OL T AGE ONL Y . Check the rating plate on the front of the con[...]

7 JACKET ASSEMBL Y Outer Jack et - The out er jacket assembly is c onst ructed from hea vy gauge steel. The ext er ior surface is specially prepared and phosphat e coated to allow application of a multiple coat enamel paint pr ocess. This coating process insures a long life from the jack et assembly . ST ANDARD EQUIPMENT Y our commercial electric w[...]

8 A main power t er minal block is provided for field connection of the branch power supply to the electric water heater . All internal pow er circuits to the immersion heating elements are c onnected to the load side of the main terminal block. The line side of the terminal block has individual lug ty pe connections properly sized for the recommen[...]

9 The limit is reset by pushing the r ed reset button on the limit. Operation of the limit control usually indicates a major problem with the heating elements or temperature contr ol. Do not contin ue to push the reset m ultiple times. The problem causing the r eset to function must be found and corrected to insur e proper operation. The blank e t [...]

10  W ARNING: HAZARD OF ELECTRICAL SHOCK - Before opening the electrical access panel to adjust the thermostat or ser vicing the water heater , make sur e the electrical supply to the water heater is turned "OFF". Failure t o do this could result in death, serious bodily injur y or propert y damage. As a contr ol option, the water heat[...]

11  W ARNING: SHOULD O VERHEA TING O CCUR OR THE TEMPERA TURE CONTROLS F AIL TO SHUT OFF , TURN OFF OR DISCONNECT THE ELECTRICAL SUPPL Y A T THE MAIN POWER DISCONNECT , EXTERN AL TO THE APPLIANCE.  DANGER • W ater temperature over 125°F (51.7°C) can cause severe burns instantly or death from scald. • Children, disabled and elderly are a[...]

12 IMMERSION HEA TING ELEMENTS FIG. 14 Immersion H e ating Element  W ARNING: HAZARD OF ELECTRICAL SHOCK - Before opening the access panel t o remove or service the immersion heating elements, make sur e the elect rical supply to the water heat er is turned "OFF". F ailure to do this could result in death, serious bodily injur y or pro[...]

13 NOTE: The cold water supply m ust be left in the open position when the water heater is in use. 5. Check the near by hot water faucet t o verify that air is exiting the tank as it fills with water . Allow wate r to run until a constant flo w is obtained at the faucet. This will insure that all air is purged fr om the system.  CAUTION The powe[...]

14 SHUTDOWN PROCEDURE 1. T urn off the main electr ical power t o the water heater . If the power disc onnect point is out of sig ht, lock it in the open ("OFF") position and tag to prev ent unexpected application of power . 2. T urn the valve in the water heat er's cold water supply to the closed or "OFF" position. 3. T ur[...]

Scale accumulation in the bott om of the storage tank may be remo ved by turning off main power and draining the tank. Once all wate r is remo ved, the hand hole access can be remo ved. This w ill allow large ac cumulations of scale to be cleaned from the bottom of the tank. 15 Corrosion due to wat er chemistry gener ally shows up first in the hot [...]

Revision Notes: Revision 2 (ECO #C02870) reflects the addition of the scald char t on page 10. CP -5M-1/09-Printed in U.S.A. 16 7. Clean remaining gask et recess on eac h screw-in element flange. Do not reuse element gask ets. 8. Install a new gask et on each element. Install element into the tank opening where it was originally installed. Tighten [...]