Lochinvar s--01 User's Manual
Contents
1. CAUSE E A low voltage condition may exist Low voltage is a common cause on large model heaters SOLUTION Verify wire size and circuit for the application THE BOOSTER HEATER DOES NOT HEAT AT ALL OR ONLY DELIVERS 130 150 F 54 C 66 C WATER CAUSE A Sometimes upon completion of an installation the booster operation is checked by energizing the heater before the tank is completely filled with water When elements of the immersion type are not completely covered by water at the time the heater is turned ON the high temperature in the tank may damage the element s unless the unit has been equipped with a low water cut off SOLUTION Damaged elements must be replaced NOTE Thermostats should also be inspected Elements damaged by overheating in dry environment can easily damage thermostats CAUSE B Fuses may be blown or circuit breaker tripped SOLUTION Inspect the fuses or circuit breaker and refer to data sheet for the booster model installed If undersized fuses or circuit breakers were installed replace with size recommended in the data sheet See Section Booster repeatedly blows fuses or trips circuit breakers CAUSE C Thermostats may not be functioning correctly or may be improperly set SOLUTION Inspect thermostats for proper operation and correct settings If setting is below the maximum reset to 190 F 88 C If defective and not functioning replace CAUSE D Contactors are not performi2. 2 Loosen nut A then remove bushing B from tank Thermostat with bracket and sensor bulb C can now be removed from tank INSTALLATION 1 Pull end of sensor bulb C into recess in bushing B Insert bushing B and sensor bulb into tank holding sensor bulb in place with capillary tube tighten bushing B 3 Lock sensor bulb and capillary tube in place by tightening nut A CAUTION 4 Do not overtighten nut or sleeve inside of bushing will cut through tubing 4 Replace thermostat on bracket Replace leads on thermostat terminals CAUTION 4 Be sure tank is filled with water before turning on power SENSOR BULB SENSOR BULB HIGH TEMPERATURE LIMIT SWITCH RECALIBRATION If the temperature in the heater exceeds 210 F 99 C the high temperature limit will shut off the power The switches must be manually reset by pushing the red buttons The limit switch has been calibrated at the factory and should not require adjusting If the calibration changes and must be re adjusted the procedure is as follows Models 4 18kW Hold lock nut F and turn calibrating screw G clockwise 1 8 turn to increase set point 7 F 3 9 C or hold screw G and turn nut F clockwise Model 24 58kW Turn adjustable screw D clockwise to raise set point 1 8 turn equals about 7 F 3 9 C REMOVAL Shut off power and drain tank remove leads from terminals E 2 Remove two screws holding the sw
3. C or greater Excessive length over 15 4 57m or use of more than two elbows can cause a restriction and reduce the discharge capacity of the valve No shut off valve shall be installed between the relief valve and tank or in the drain line Valve lever must be tripped periodically to insure that waterways are clear This device is designated for emergency safety relief and shall not be used as an operating control Do not use an antisiphon or check valve on the incoming water line CAUTION The valves are set to relieve at 150 psi or when water temperature reaches 210 F 99 C Read tag on valve for additional information PRESSURE REDUCING VALVE Proper operation of the dishwater rinse nozzles requires available water pressure at the nozzle be between 15 and 25 psi when nozzle is operated 20 psi is recommended If water pressure available to the booster heater inlet is over 20 psi a pressure reducing valve should be mounted in the hot water supply line to the booster heater The pressure reducing valve supplied by the manufacturer has a built in high pressure by pass which prevents excessive pressure build up as the booster heats up TEMPERATURE PRESSURE GAUGES Manufacturer recommends a temperature pressure gauge be installed in both the inlet and outlet lines to the booster heater These gauges provide an instant visual check of the water temperature and pressure entering the booster heater and leaving the h
4. 1 4 240 l 100 100 125 l 1 1 4 240 3 58 58 58 90 3 1 1 4 480 3 30 30 30 40 8 3 4 30 208 144 144 200 3 0 1 1 2 208 3 83 83 83 125 3 1 1 2 240 l 125 125 175 2 0 1 1 2 240 3 72 12 12 100 3 1 1 4 480 3 36 36 36 50 8 3 4 36 208 173 173 225 4 0 2 208 3 100 100 100 125 1 1 2 240 l 150 150 200 3 0 1 1 2 240 3 87 87 87 125 1 1 2 480 3 43 43 43 60 6 3 4 45 208 3 125 125 125 175 2 0 2 240 188 188 250 250 MCM 2 240 3 108 108 108 150 1 0 1 1 2 480 3 54 54 54 10 4 54 208 3 150 150 150 200 3 0 1 1 2 240 3 130 130 130 175 2 0 2 480 3 65 65 65 90 3 1 1 4 58 208 3 162 162 162 225 4 0 2 240 3 14 14 141 200 3 0 1 1 2 480 3 7 7 7 90 3 1 1 4 Wire size is based on THHN wire for branch circuit protection at 91 derate factor Circuit breakers are to be mounted remotely and wired by the contractor Sizes are based on the NEC table 310 16 Conduit size is based on conductors plus ground wire sizing as per NEC table 250 122 ii 29 1 4 26 742 mm lt 660 HAN 3 4 20 3 4 527 mm gt nipple K 3 4 Outlet PM wt valve 224 610 mm Knockout 5 3 4 Ta 12 116 146 mm 308 mm Knockouts 394mm left side and bottom 3 4 19 mm 124 mm Knockouts left side and bottom 1 1 2 38 mm and 2 51 mm a nipple 3 4 coupling for T P relief Valve 3 4 x nipple Allow 3 76 mm for tee or elbow zz 51 mm M 3 1
5. F 82 C first turn the pointers all the way up on all thermostats If the reading is still below 180 F 82 C minor adjustments can be made on the thermostats If recalibration does not help the thermostat is defective and should be replaced BOOSTER HEATER REPEATEDLY BLOWS FUSES OR TRIPS CIRCUIT BREAKERS NOTE Fuses or circuit breakers should not be loaded to more than 80 of their rating CAUSE A Fuses are undersized too small to carry the load SOLUTION Check Fuse and Disconnect Switch Sizes table for recommended sizes Replace undersized fuses with correct one CAUSE B Short circuit in internal heater wiring SOLUTION By visual inspection check for loose connections grounded heating elements frayed insulation and foreign matter touching wiring terminals WHEN THE DISHWASHER AND THE BOOSTER HAVE BEEN IDLE FOR SEVERAL HOURS RELIEF VALVE OPENS OR ECO TRIPS CAUSE A A cause of overheating and resulting relief is excessive primary water temperature Primary water temperature should not exceed 160 F 71 C SOLUTION Check to be sure primary water heater is functioning properly Primary water heater thermostats may be set too high causing nuisance tripping Adjust primary heater thermostats to 140 150 F 60 C 66 C CAUSE B Control thermostat may be set too high or be defective SOLUTION Reset thermostat s If condition is not corrected replace thermostat s CHATTERING CONTACTOR S O
6. probe If solution 2 discloses no broken wire or poor connection and relay still does not pull in probe tip may be insulated by lime buildup If relay operates when a jumper wire is connected between terminals 3 and ground the probe is fouled Remove probe and clean the electrode TEMPERATURE REACHES ONLY 170 175 F 77 C 79 C THIS CONDITION AS DIFFERENTIATED FROM CONDITION II INDICATES THE BOOSTER HEATER IS FUNCTIONING BUT MAY NOT BE REACHING PROPER TEMPERATURE 180 F 82 C CAUSE A Booster should be close to the dishwasher 5 feet or less If the booster is more than 5 feet away the heat loss through the pipes is the most likely reason the dishwasher thermometer reads only 170 F 77 C Make certain the thermostats are set to their maximum calibration They are pre set at the factory to 190 F 88 C to compensate for heat loss but they may have been turned down to 180 F 82 C by someone overlooking heat loss through the pipes SOLUTION The booster should be moved to within 5 feet of the dishwasher if possible and the pipes should be insulated CAUSE B Thermostats may not be functioning correctly NOTE To help determine this cause check rinse temperature in the dishwasher Since the dishwasher temperature gauge could become defective it is preferable to rely on a temperature sensitive tape or a thermometer rather than the gauge for checking this cause SOLUTION If maximum reading is below 180
7. 4 1 25 mm Side view 83 mm Side view 1 1 4 32 mm 6 1 2 165 xd 13 C7 j4 330 mm gt Wem i 4 5 16 110 mm 1 4 1 9 32 371 mm 9 11 16 1 19 32 246 mm 40 mm Rear view HANGING SUPPORT Weld slide T rail to bottom of dishtable Rear view Fasten slide bracket angle to booster heater sides PLUMBING CONNECTIONS Temperature pressure gauge Shock absorber Temperature pressure Y relief valve 3 4 union 5 E for water hammert Pressure reducing valve Ot io Outlet Temperature pressure gauge CONSULT 3 4 gate g LOCAL or ball valve aie T f i CODES IL IL LL i a a Sy Inlet LA M 3 4 union In J Drain valve Discharge from T P rellef valve TT Floor drain tOptional Not supplied with Air gap must comply with plumbing code accessory booster heater ee relle valve 150 PSI 210 F Discharge from T P relief valve Air gap must comply with CR O Outlet Pi plumbing code cpm absorber 3 4 shut off valve seen gate or ball wane o gm TL xU P erga E D a oe Her HEU Cy pp LEE Titty Sa 3 hH qoe gu tt Water inlet Pressure reducing valve Floor drain uw n E from primary with bypass r Drain valve Floor a nse water heater 20 PSI set point Not supplied with drain We salle Temperature pressure gauge booster heater TOptional access
8. R NOISY RELAY CAUSE A Contactors chatter or hum excessively when pulled in SOLUTION Accumulation of dirt will prevent proper seating of armature Remove contactor and clean If proper seating is prevented by warpage of the frame or distorted coil contactor should be replaced Check for loose connections or wire connections with insulation under crimp CAUSE B Contactors chatter only at pull in or drop out or low water cutoff relay is NOISY SOLUTION Check for low voltage at control circuit and at secondary side of transformer If voltage is below 120 volts replace transformer Low water cutoff probe may be fouled To check remove wire from LWCO probe and ground to tank If LWCO board relay pulls in and stops chattering the probe is fouled To clean drain water from tank remove probe and clean probe tip THERMOSTAT ADJUSTMENT AND RECALIBRATION The thermostats are factory calibrated to produce 185 190 F 85 88 C temperatures If recalibration is necessary turn screw G counterclockwise to lower the set point or turn the adjustment nut F counterclockwise to raise the set point must hold screw G at high stop NOTE one sixth of a turn equals 12 F 6 7 C These thermostats are checked and accurately set at out factory If recalibration is necessary a 1 4 turn clockwise to screw F will decrease the temperature 12 F 6 7 C REMOVAL 1 Shut off power and drain tank remove leads from terminals E
9. RING DIAGRAM FOR PROPER CONNECTIONS THERMOSTAT CIRCUIT FOR LIGHT amp SWITCH WHEN SUPPLIED 24 30K W 208V 3PH 24 36K W 240V 3PH 10 FOR LIGHT amp SWITCH WHEN SUPPLIED 208V THERMOSTAT THERMOSTAT ELEMENTS 240V Tod 45 KW 50A 40A 54 58 5 KW BOA SOA HI LIMIT i ECH CIRCUIT SEE TRANSFDRMER WIRING CONNECTIONS m 3 4 POLE SEE TABLE FUSES I 1 DL Lis 36 58K W 208V 3PH 45 58 KW 240V 3PH CONTROL PANEL 208 240V 3PH I 1 a ull e O O oO F d O e O O O pa O B a Qc a a 345 654 Lco el B8e RM main 1 E ff off m i B u Hn lt iie 7 5 g z m BG t TE g amp ce O 9 l ge za o zZ de HL S Lu ae Z W uu an f a amp t uL Boe hoz zh c zt EU i PRI y 485 VoU A H CONTROL PANEL CONTROL PANEL 480V 3PH Z gt E E e 1 Au 1 gt e o6 e 4 e 45 SAKW 346V 3PH 45 38 K W 380 400 415 600 V 3PH 11 45 AND 58KW 480V 3PH CP 2M 4 03 Printed in U S A
10. SSB i amp s 01 INSTALLATION AND SERVICE MANUAL UL Dus ELECTRICAL INSTALLATION C SPACE SAVER BOOSTER PLUMBING INSTALLATION INSTRUCTIONS Electric booster water heaters are available for operation on standard power systems Check the nameplate for the proper power supply All internal electrical connections have been made at the factory See Circuit Breaker and Fuse Sizing Chart for supply wire size fuse breaker and conduit recommendations WARNING For proper electrical installation conforming to local electrical codes consult a licensed electrical contractor The main power circuit must be disconnected prior to performing any maintenance on the booster heater to avoid possible personal injury or damage to the heater ELECTRICAL CONNECTIONS 1 Locate the heater terminal or fuse block s in the control box The control box is under the front hinged jacket cover 2 Bring power leads from a properly sized fused disconnect switch or circuit breaker through knock out provided in base and connect to the terminal or fuse block s USE COPPER WIRE ONLY 3 A grounding lug is provided near the supply terminals An equipment grounding conductor must be properly connected to it 4 Replace and secure cover s CAUTION Do not turn on power to booster heater until the tank has been filled with water and all air has been vented through the dishwater rinse nozzle The heating elements w
11. eater The visual check is helpful in eliminating unnecessary service calls Temperature pressure gauge with N thread Temperature pressure gauge Center bottom with 1 2 pipe thread of sensor in copper tubing 1 2 pipe thread 1 2 copper female fitting adapter 1 2 copper Temperature female sensing element fitting adapter 3 4 x 1 2 x 3 4 Temperature copper tee 3 4 nominal sensing element copper tubing 4 4 4 2 x 3 4 copper tee 3 4 nominal copper tubing PLUMBING CONNECTIONS CAUTION To avoid development of a leak do not back up or loosen any pipe fittings Do not connect the heater directly to a boiler or furnace coil or any other uncontrolled temperature source Such hook up could cause the thermostat to lose control and the unit could overheat INLET Connect the booster heater water inlet to a hot water supply line from the regular water heater Water temperature from the regular water heater should be 100 F or 140 F 52 C or 60 C and should not exceed 160 F 71 C Minimum temperature differential between inlet and outlet temperatures should never be less than 20 F 11 C Provide the inlet line with a shut off valve a full open gate or ball type valve together with a pressure reducing valve Set pressure reducing valve at 20 psi 1 4 kg cm2 flow pressure NOTE Be sure water flows through the pressure reducing valve in the proper direction Ch
12. eck directional arrow Valve will reduce pressure only during flow conditions A 3 4 in union fitting and a drain valve are needed for easy servicing NOTE Do not run a cold water line to the heater OUTLET Using a 3 4 in union and piping connect the booster heater water outlet to the dishwasher sanitizing rinse pipe connection NOTE Be certain the connection is made to the final rinse and not to the wash tank Install a temperature pressure gauge in outlet line Water temperature at outlet should be 180 F 82 C The temperature sensing element must be in water stream Manufacturer recommends a shock absorber be installed in the outlet line as close as possible to the dishwasher The shock absorber softens the water hammer caused by automatic dishwasher valves INSTALLATION CHECK 1 Close drain pipe valve and fill booster heater with water 2 Check all pipe connections for installation leaks 3 Check relief valve discharge opening to be certain it is not blocked 4 Vent air from tank before operating CAUTION 4 Leave tank filled with water during electrical hookup to prevent possible element burnout BOOSTER HEATER SERVICE PROCEDURES WATER REACHES 180 F 82 C BUT DOES NOT MAINTAIN 180 F THROUGH THE ENTIRE DISHWASHING OPERATION CAUSE A_ Low incoming temperature particularly during peak operational periods is the most common cause of this condition If incoming temperatu
13. ill burn out in seconds if operated when they are not immersed in water unless the heater is equipped with a low water cutoff LWCO INSTRUCTIONS For the most effective operation install the booster heater as close as possible to the dishwasher NOTE Employ recirculation if distance between booster and dishwasher exceeds NSF specifications To assure proper operation and avoid a possible unsafe condition the booster heater must be installed in a horizontal position with the base parallel to the floor and the inlet connection at the lowest point TEMPERATURE AND PRESSURE RELIEF VALVE For protection against excessive pressures and temperatures in the booster heater install temperature and pressure protective equipment required by local codes The manufacturer supplies valves constructed with brass working parts and heat resistant silicone seat discs for all booster heater models Valves supplied by manufacturer are designed for high temperature commercial operation Do not substitute OEM valves with valves designed for domestic water heaters Temperature pressure protective equipment should not be less than a combination temperature pressure relief valve certified by a nationally recognized testing laboratory that maintains periodic inspection of the production of this equipment and meets the requirements for Relief Valves and Automatic Shutoff Devices for Hot Water Supply Systems ANSI Z21 22 latest edi
14. itch on the bracket 3 Loosen nut A then remove bushing B from tank The high limit switch and sensor bulb C can now be removed from tank INSTALLATION Pull end of sensor bulb C into recess in bushing B 2 Insert bushing B and sensor bulb into tank holding sensor bulb in place with capillary tube tighten bushing B 3 Lock sensor bulb and capillary tube in place by tightening nut A CAUTION Do not overtighten nut or sleeve inside of bushing will cut through tubing 4 Replace switch on bracket Replace leads on terminals CAUTION Be sure tank is filled with water before turning on power CIRCUIT BREAKER AND FUSED DISCONNECT SWITCH SIZES VOLTS PH Breaker or Fuse Size Copper Wire Size Conduit Size 6 208 29 29 40 8 1 2 208 3 14 25 14 40 8 3 4 240 25 25 E 40 8 1 2 240 3 13 22 13 30 10 1 2 480 3 6 1l 6 15 14 1 2 9 208 43 43 60 6 3 4 208 3 22 38 22 50 8 3 4 240 30 30 50 8 1 2 240 3 19 33 19 50 8 3 4 480 3 9 16 9 20 12 1 2 12 208 50 50 90 3 208 3 33 33 33 50 8 3 4 240 50 50 70 4 I 240 3 29 29 29 40 8 3 4 480 3 14 14 14 20 12 1 2 15 208 12 12 E 90 3 I 208 3 42 42 42 60 6 3 4 240 63 63 E 90 3 240 3 36 36 36 50 8 3 4 480 3 18 18 18 30 10 1 2 18 208 87 87 125 l 1 1 4 208 3 48 48 48 60 6 3 4 240 15 15 100 3 i 240 3 43 43 43 60 6 3 4 480 3 22 22 22 30 10 1 2 24 208 115 115 150 1 0 1 1 4 208 3 67 67 67 90 3 1
15. ng SOLUTION Inspect contactors for proper operation by visual observation Assuming no fuses are blown and power is coming to the booster inspect the coil and replace if defective CAUSE E ECO high temperature limit switch may be defective SOLUTION Check for proper operation and replace if defective CAUSE F The fuse 1s blown SOLUTION Replace fuse If fuse continues to blow either a contactor coil is defective or the booster control transformer is defective If booster has more than one contactor disconnect wires so only one contactor at a time is energized The defective one can then be isolated and replaced On all boosters with low water cut off the following trouble shooting procedures apply CAUSE G Relay does not pull in after booster is filled with water and air bled out SOLUTION 1 Check for voltage at line terminals 1 and 2 using volt meter or test light If there is no voltage refer to CAUSE F 2 Open circuit between ground and the probe Check for broken wire or poor contact at connections To test run temporary wires from probe terminal 3 If relay pulls in the wire is broken and should be replaced 3 Check or open relay coils With line voltage applied at 1 and 2 connect a jumper wire between 6 and 7 Relay should pull in when the jumper is connected and fall out when the jumper is removed Failure to do so indicates one of the coils is open and the relay should be replaced 4 Fouled
16. ory posee 1 s jc PILOT y LIGHT AM AM b n Fuses T CONTACT O O olT BLOCK QE We ty 208 240 480V 3 PH THERMOSTAT CIRCUIT FOR LIGHT amp SWITCH WHEN SUPPLIED SEE TRANSFORMER WIRING DIAGRAM FOR PROPER CONNECTIONS PRESSURE TERMINALS ON CONTACTOR USED ON 480V IN LIEU OF T BLOCK I I I I HI LIMIT 4 I ECU j I I I I I THERMOSTAT A 1 1 we SEE TRANSFORMER WIRING I DIAGRAM FOR PROPER i CONNECTIONS j PRESSURE TERMINALS ON CONTACTOR i USED ON 480V IN LIEU OF T BLHCK Ba BLACK CIRCUIT FOR LIGHT amp SWITCH WHEN SUPPLIED ELEMENT 12 18KW 480V 3PH 15K W 208 240V 3PH 18K W 240V 3PH CONTROL PANEL PILOT LIGHT FUSES 2 3 POLE SEE TABLE FUSE 1 4 POLE SEE TABLE CIRCUIT FOR LIGHT amp SWITCH WHEN SUPPLIED 5 O FUSES 23 L L2 40 A 240V 1 PH HI LIMIT 1 ECO T SEE TRANSFORMER WIRING DIAGRAM FOR PROPER CONNECTIONS THERMOSTAT OxO I B ug LUE RED om l BNE ELEMENTS l HI LIMIT Ir ECO j l SEE TRANSFORMER WIRING DIAGRAM FDR PROPER 1 CONNECTIONS 1 THERMOSTAT A BLUE ELEMENT BLACK CIRCUIT FOR LIGHT amp zu SWITCH WHEN SUPPLIED 18K W 208 240V 1PH HI LIMIT i ED SEE TRANSFORMER WI
17. re is correct at the start of the dishwashing operation check again at the end It is possible for the supply of 140 F 60 C water to be exhausted during the washing cycle SOLUTION If incoming temperature is 140 F 60 C at the start of the washing cycle but falls below at the end the primary water heater is not delivering sufficient 140 F 60 C water and the condition is correctable with installation of a commercial primary water heater model of the correct size Contact your representative to assure proper sizing of the primary heater CAUSE B If incoming water temperature is correct and it holds through the dishwashing operation another possible reason for this condition is that the water pressure may be too high Water pressure to the dishwasher must be approximately 20 psi for proper operation of the booster and dishwasher rinse cycle SOLUTION If pressure exceeds 20 psi with the dishwasher rinse valve open install a pressure reducing valve with built in bypass check CAUSE C The booster may be undersized SOLUTION Check the dishwasher model with the sizing guide to be sure the correct booster has been installed CAUSE D The booster may have been ordered with improper voltage SOLUTION Consult specifications plate on the booster Voltage and amperage are clearly marked Check this infor mation against the service to which it is connected If heater was incorrectly specified consult factory for instructions
18. tion The temperature pressure relief valve must be marked with a minimum set pressure not to exceed the marked hydrostatic test pressure of the booster heater CAUTION A A For Installing Temperature and Pressure Relief Valves in accordance with American National Std Z21 22 latest edition Combination temperature and pressure relief valves with extension thermostats must be installed so that the temperature sensing element is immersed in the water within the top 6 152 mm of the tank They must be installed either in the hot outlet service line or directly in a tank tapping Combination temperature and pressure relief valves that do not have extension elements must be mounted directly in a tank tapping located within the top 6 152 mm of the tank and shall be adequately insulated and located so as to assure isolation from flue gas heat or other ambient conditions that are not indicative of stored water temperature To avoid water damage or scalding due to valve operation drain pipe must be connected to valve outlet and run to a safe place of disposal Drain pipe must be as short as possible and be the same size as the valve discharge connection throughout its entire length Drain line must pitch downward from the valve and terminate at least 6 152 mm above the floor drain where any discharge will be clearly visible The drain line shall terminate plain not threaded with a material serviceable for temperatures up to 250 F 121
Download Pdf Manuals
Related Search