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Hubbell Electric Heater Company SLN - page 1
OPERATING AND MAINTENANCE MANUAL FOR COMMERCIAL SOLAR WATER HEATER ELECTRIC HEATER COMPANY BASE MODEL “SLN” ...
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Hubbell Electric Heater Company SLN - page 2
2 HUBBELL ELECTRIC HEATER COMPANY P.O. BOX 288 STRATFORD, CT 06615 PHONE: (203) 378-2659 FAX: (203) 378-3593 INTERNET: http://www.hubbellheaters.com/ -- IMPORTANT -- Always reference the f ull model num ber and serial number when calling the factory. WARNING / CAUTION 1. Tank is to be complete ly fille d with water and a ll air is to be vente d bef ...
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Hubbell Electric Heater Company SLN - page 3
3 TABLE OF C ONTENTS SECTION TITLE PAG E # I GENERAL DESCRI P TION AND CONSTRUCTI ON 5 I I INSTAL LATI ON 8 III S C H E D U LE D M A IN TE NANC E AND OPERATION 11 I V TROUBL ES HOOTING 13 V SERVICI NG AND REPLACEMENT OF PARTS 15 ...
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Hubbell Electric Heater Company SLN - page 4
4 ...
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Hubbell Electric Heater Company SLN - page 5
5 SECTION I - GENERAL DESCRIPTION AND CONST RUCTION GENERAL DESCRIPTION This book describes a packaged solar water heater that is a stationary , self-contained unit. The complete assembly on a standard unit consists of the storage tank, immersion heating coil, and an ASME rated combination temperat ure and pressure safety relief valve. The water he ...
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Hubbell Electric Heater Company SLN - page 6
6 OUTER SHELL AND INSULATION The tank is encapsulated in 2-inch thick polyurethane foam insulation. The insulation is protected by a high impact non-corroding colorized composite protective jacket. THERMISTOR CLIP The water heater is supplied with a thermistor clip located just above the heating coil tank flange for attaching a sensing probe to the ...
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Hubbell Electric Heater Company SLN - page 7
7 Temperature Hig h Limit S witch As a safety device, either a surface mounted hig h temperature cut-off switch with manual reset, factory set at 190° F, or an immersion high temperature cut-off switch with manual reset, factory set at 180° F, may be provided. In the event of an over-temperature condition, the thermostat will diseng age the power ...
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Hubbell Electric Heater Company SLN - page 8
8 SECTION II – INSTALLATION WARNING / CAUTION DO NOT TURN ON THE SOL AR WATER SUPPL Y to this equipment until heate r is completely filled with water and all air has be en rele ased. If the heate r is NOT filled with water when the power is turned on, damage to the heating coil may result. For protection against excessive pressures and temperatur ...
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Hubbell Electric Heater Company SLN - page 9
9 PIP ING INSTALLATION NOTE: The most effect ive means for preventing deteriorat ion from accelerated corrosi on due to galva nic and stray curre nt is the installation of dielectric fittings/unions. The installation of these fittings is the responsibility of the installing contractor. 1. All integral components have been properly sized to meet des ...
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Hubbell Electric Heater Company SLN - page 10
10 Outlet to floor drain Install into provided tapping Manual Release Lev e r Temperature Probe Temperature and Pressure Relief Valve 5. I nstall a relief valve overflow pipe to a nearby floor drain. CAUTION: No valve of any type should be installed between the relief valve and tank or in the drain line. ELECTRICAL IN STALLATION 1. Connect thermist ...
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Hubbell Electric Heater Company SLN - page 11
11 SECTION III - SCHEDULED MAINTE NANCE AND OPERATION WARNING / CAUTION Before performing any maintenance procedure, make certain solar water and electric supply is OFF and cannot accidentally be turned on. MAINTENANCE AND OPERATION The water heater is automatic in its operation. I t will maintain a full tank of water at the temperature setting of ...
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Hubbell Electric Heater Company SLN - page 12
12 ANNUAL INSPECTION 1. Flush tank as follows a. Shut off power supply . b. Close valve on hot water outlet piping. c. Open valve on drain piping. d. Cold water inlet line pressure will be strong enough to flush sediment from the bottom of the tank out through the drain. L et water run for 3-4 minutes. e. Close drain valve. f. Open hot water valve. ...
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Hubbell Electric Heater Company SLN - page 13
13 SECTION IV – TROUBLESHOOTING SOLAR WATER SY STEM Symptom Probable Cause Corrective Action / Remedy T u b es a r e f o u l e d . C l e a n t u b e s p er S e c t i o n III, a nnual scheduled maintenance. Gradual loss of heating capacity. Excess silt in bottom of tank. Drain and flush tank per Section III , annual scheduled maintenance. Ruptured ...
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Hubbell Electric Heater Company SLN - page 14
14 BACK -UP ELECTRCIAL HEATER SYSTEM (if supplied) Symptom Probable Cause Corrective Action / Remedy Circuit breaker tripped at source. Reset circuit breaker. High limit switch tr ipped. Reset hig h limit switch. Loose wires. Tighten wires. Torque screws per torque chart included in Section VI . Heating element inoperable. Ch eck he ati ng e le men ...
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Hubbell Electric Heater Company SLN - page 15
15 SECTION V - SERVICING & REPLACEMENT OF PARTS WARNING / CAUTION Before servicing or replacing any part make sure to turn the power supply switch to the OF F position. RELIEF VALVE 1. Disconnect power from unit. 2. Shut off incoming cold and solar water supply . 3. Lift test lever on relief valve to relieve pressure in tank. 4. Disconnect over ...
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Hubbell Electric Heater Company SLN - page 16
16 HEATING COIL 1. Disconnect power from unit. 2. Shut off incoming cold and solar water supply . 3. Attach hose to drain connection. 4. Lift manual release lever on relief valve to let air into sy stem or break union on outgoing water line. 5. Drain water from tank. 6. Remove access cover. (See diagram on page 9). 7. Disconnect supply and return l ...
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Hubbell Electric Heater Company SLN - page 17
17 HEATING ELEMENT (if supplie d) 1. Disconnect power from unit. 2. Shut off incoming water supply . 3. Attach hose to drain connection. 4. Lift manual release lever on relief valve to let air into sy stem or break union on outgoing water line. 5. Drain water from tank. 6. Disconnect the wires from the heating elem ent terminal s. Tank Flange Wires ...
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Hubbell Electric Heater Company SLN - page 18
18 2 L 1 L 2 L 3 L 1 L 2 Single Element Operation 3 Ø O p e n D e l t a W i r i n g f o r S i m u l t a n e o u s O p e r a t i o n 4 3 2 1 1 2 1 2 3 4 1 1 3 4 2 1 2 ...
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Hubbell Electric Heater Company SLN - page 19
19 L 1 L 2 L 1 L 2 I nterlocked for Non-Simultaneous Operation Non-I nterlocked for Simultaneous Operation 1 1 1 1 2 2 2 2 3 3 4 4 4 4 1 1 2 2 ...
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Hubbell Electric Heater Company SLN - page 20
20 SURFACE MOUNTED THERMOS TAT (if sup plied) 1. Disconnect power from unit. 2. Remove access cover and locate t hermostat. 3. Disconnect the two (2) or three (3) 14 gauge wires and jumpers, as required. Control Wires 4. Remove two (2) mounting screws and disconnect fr om high limit cut- off, if re quired. Mounting Screws 5. Replace thermost at usi ...
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Hubbell Electric Heater Company SLN - page 21
21 IMMERSION THERMOSTAT ( if supplied) 1. Disconnect power from unit. 2. Remove access cover and locate t hermostat. 3. Remove high limit c over screw and cover. Cover Cover Screw 4. Disconnect the two (2) or three (3) 14 gauge wires, as required. Wires Capillary Tube 5. Remove capilla ry tube a nd bulb from thermowell. 6. Remove two (2) mounting s ...
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Hubbell Electric Heater Company SLN - page 22
22 Model SLN – Coil Curves ...
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