Lochinvar CHP-AMP-01 Installation And Service Manual Download Page 33 | Manualshive

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CUSTOM HI POWER

®

(CHP) WIRING DIAGRAMS

POWER CIRCUIT (TWO WIRES PER ELEMENT)

MAIN TERMINAL BLOCK

FUSE BLOCK

CONTACTOR

HEATING ELEMENT

POWER CIRCUIT (THREE WIRES PER ELEMENT)

MAIN TERMINAL BLOCK

FUSE BLOCKS

CONTACTORS

HEATING ELEMENT

CIRCUIT LIMITED TO 48 AMPS

CIRCUIT LIMITED TO 48 AMPS

LIT0713 Rev. A

LIT0714 Rev. A

3

Power Circuits fused
when total amperage
exceeds 120 amps.

Power Circuits fused
when total amperage
exceeds 120 amps.

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Summary of Contents for CHP-AMP-01

Page 1: ...facturer s warranty Follow start up procedure in the manual Water heater corrosion and component failure caused by air borne chemical vapors is not covered under the manufacturer s warranty Corrosion damage caused by current leakage due to improper grounding of electrical systems or electronic components to the storage tank and related piping is not covered by the manufacturer s warranty Under no ...

Page 2: ...ion 8 Relief Valve 8 Thermal Expansion 8 Cathodic Protection 9 Electrical Service Electrical Connection 9 Wire Sizing 9 Fusing 9 Electrical Connection 9 Jacket Assembly 10 Standard and Optional Controls 10 Components and Controls Terminal Block 11 Fuses and Fuse Blocks 12 Contactors 12 Transformer 12 Immersion Thermostat 13 Temperature Regulation 13 Risk of Scald Warnings 14 Temperature Control Se...

Page 3: ...3 FIG 2 Front View Vertical Square Models FIG 1 Front View Vertical Round Models FIG 3 Front View Horizontal Models ...

Page 4: ...it must conform to the CAE C22 1 Canadian Electrical Code Part 1 and or local Electrical Codes This complete appliance is design certified and Listed by Underwriters Laboratories as a commercial storage electric water heater This water heater bears the UL certification for the United States as tested under the Standard for Electric Booster and Commercial Storage Tank Water Heaters UL1453 and C UL ...

Page 5: ...ature of the space where the appliance is installed must not go below 32 F 0 C or above 104 F 40 C The lower pan of the horizontal water heater jacket or vertical square water heater jacket is specially constructed to function as a drain pan A water discharge opening is located in either end of the pan The discharge opening s used must be piped to a suitable floor drain If only one discharge openi...

Page 6: ...nd heating elements Top 12 30cm for service access to electrical service water connections and piping Water Pipes 1 25 4mm 6 FIG 5 Clearances from Combustible Construction 12 36 6 FIG 4 Clearances from Combustible Construction CLEARANCES FROM COMBUSTIBLE CONSTRUCTION 6 12 FIG 6 Clearances from Combustible Construction TABLE A CLEARANCES FROM COMBUSTIBLE CONSTRUCTION 12 36 6 ...

Page 7: ...loor following applicable architectural and local code requirements or accepted standards for the specific site and model purchased In areas prone to seismic activity it is recommended that the water heater be mounted to the floor according to recommended procedures for the site In some geographic areas additional strapping or braces may be required consult local codes for specific requirements Pr...

Page 8: ...water heater is supplied with a temperature and pressure relief valve s sized in accordance with ASME Boiler and Pressure Vessel Code Section IV Some water heaters may be supplied with an optional pressure only relief valve The relief valve s is installed in the vertical position and mounted in the tapping provided in the storage tank No valve is to be placed between the relief valve and the water...

Page 9: ... NFPA No 70 When the appliance is installed in Canada it must conform to the CAE C22 1 Canadian Electrical Code Part 1 and or local Electrical Codes 1 Use copper conductors only All wiring between the appliance and field installed devices shall be made with copper wire suitable for at least 75 C 167 F temperature rating If the wiring from an old water heater installation was aluminum replace the o...

Page 10: ...nsity immersion heating elements with an incoloy sheath Internal fusing of all elements in a maximum of 48 amp increments provides additional safety Fuse cartridges are related at 1 000 000 amps interrupting capacity A galvanized steel outer jacket and electrical control panel are provided Channel iron skid base Electrical control panel is provided with a hinged door and key lock A glass lined ste...

Page 11: ... of various control failures Time clock to control off on cycles of the heater as programmed by the owner or electric utility requirements Low water pressure switch High water pressure switch A main power terminal block is provided for field connection of the branch power supply to the electric water heater All internal power circuits to the immersion heating elements are connected to the load sid...

Page 12: ...al circuit supplying power to the immersion heating elements When the thermostat is satisfied the contactor coil is de energized and power to the heating elements is turned off CONTROL CIRCUIT TRANSFORMER A transformer is used to reduce the line voltage to 120 VAC for internal control operation The transformer is fused on both the primary and secondary side The common side of the secondary control...

Page 13: ... has an adjustable thermostat to control water temperature The thermostat is factory pre set at approximately 125 F 51 7 C or less Households with small children or invalids may require a 120 F 48 9 C or lower temperature setting to reduce risk of scald injury Some states may require a lower temperature setting Check with your local codes or electric utility for local requirements governing the te...

Page 14: ...m scalds Children disabled and elderly are at highest risk of being scalded See instruction manual before setting temperature at heating appliance If this appliance is used to produce water that could scald if too hot such as domestic hot water use adjust the outlet control limit or use temperature limiting valves to obtain a maximum water temperature of 125 F SEE MANUAL FIG 18 WARNING SHOULD OVER...

Page 15: ...p arrow Down arrow and Enter Select Key Sequentially prompts the user as to what parameter is being displayed set point differential stage energized operation mode heat indication of assigned stage 1 2 3 Once the last parameter value has been viewed pressing the Select key will display the control values again from the beginning of the display loop Up and Down Arrow Keys Allow the displayed parame...

Page 16: ...erential 8o F Output Energized Stage One Energized at 152o F Output De energized Stage One De energized at 160o F Each available stage of operation must be programmed with a set point and a differential If two stages are programmed with the same set point and differential the control will sequence both stages on and off with only a slight delay between switching of the stages The control is normal...

Page 17: ...or Down Arrow key to decrease to the desired set point 8 Press Enter to enter the displayed value into memory 9 Press Select to display the current stage switching differential 10 Press Up Arrow key to increase or Down Arrow key to decrease to the desired switching differential 11 Press Enter to enter the displayed value into memory 12 Repeat steps 6 through 11 to program each additional stage 13 ...

Page 18: ...ror cannot be field repaired Replace the water heater s electronic temperature control OE ROM Error The internal ROM of the microprocessor in the boiler s electronic temperature control is defective This error cannot be field repaired Replace the water heater s electronic temperature control AE RAM Error The internal RAM of the microprocessor in the boiler s electronic temperature control is defec...

Page 19: ...ement gasket must be replaced with a new gasket when an element is removed for inspection cleaning or replacement The optional safety door interlock is an electrically operated locking pawl that is energized when main power to the water heater is turned ON The interlock is mounted to the inside of the electrical control panel door and extends behind a locking flange when energized Main power may b...

Page 20: ...heater storage tank If the water pressure drops below an adjustable set point the control circuit is opened and operation of the water heater is shut down The low water pressure switch may be specified with either a auto reset function or a manual reset function on low water pressure A high water pressure switch is available as an option on this water heater A water pressure switch is used to moni...

Page 21: ...g schedule is maintained in periods where there may be power interruptions The time clock works by making and breaking the 120 VAC control circuit to the contactor coils to shut down operation of the heating elements in the desired time periods The water heater may be provided with optional pilot lights to provide an external indicator for each contactor or stage of heating elements that is energi...

Page 22: ...l expansion The system must make allowance for this expansion If an expansion tank is not provided in the system water pressure may increase to the point where the water heater s temperature and pressure relief valve opens to relieve the excess pressure The temperature and pressure relief valve is not intended for the constant relief of thermal expansion This is an unacceptable condition and must ...

Page 23: ...r starts heating check the contactors for buzzing or chattering during operation If noise is detected turn off main power open the control panel and clean the contact points of the magnetic contactor s Remove any dust dirt or foreign matter that may have found its way into the contactor or other electrical components in the control panel during shipping installation or service 14 Close the electri...

Page 24: ...ing and start up procedure to place the water heater back into service Listed below are items that must be checked to insure safe reliable operations Verify proper operation after servicing The temperature and pressure relief valve s should be manually operated at least once a year A relief valve that fails to completely reseat after manual operation and continues to discharge water must be immedi...

Page 25: ... in the hot water system because heated water increases the rate of corrosive chemical reactions 25 Water heater maintenance includes periodic tank flushing cleaning and removal of lime scale from the heating elements Where used the water heating system circulating pump should be oiled 1 Turn off main power at the electrical disconnect switch 2 Open the drain valve Allow water to flow until it run...

Page 26: ...he exposed ends of the elements which are not accessible through the front element access door 3 Disconnect the wires attached to the element terminals Try not to disturb the wiring unnecessarily and reconnection will be easier 4 Loosen the screw in element flange with a socket and breaker bar Do not use an impact gun air or electric to remove the element flanges from the tank Mark the location of...

Page 27: ... contactor or thermostat may be malfunctioning 4 The capacity of the heater may have been exceeded by a large demand for hot water Large demands require a recovery period to restore water temperature 5 Cold incoming water temperature will lengthen the time required to heat water to the desired temperature If the heater was installed in the summer when incoming water temperature was warm colder gro...

Page 28: ...s encountered local codes or inspection agency should be consulted to determine which of the following procedures is acceptable in your area Installation of an expansion tank Removal of the check valve 4 Examine the flange area of the elements for gasket leakage Tighten the screw in flange or if necessary follow the Water and Lime Scale Removal procedure to remove the element and replace the O rin...

Page 29: ...350 200 400 4 0 240 225 130 300 175 350 3 0 380 82 110 2 415 75 100 2 n 480 65 90 3 600 52 70 4 Total Main Line Field Wire Total Ele AMPS Fuse Per Leg KW KW Qnty Volt 1Ø 3Ø 1Ø 3Ø 1Ø 3Ø 60 15 4 208 289 167 400 225 500 4 0 240 250 144 350 200 400 4 0 380 91 125 1 415 83 110 2 480 72 100 2 600 58 80 4 72 18 4 208 200 250 250 240 173 225 4 0 380 109 150 0 415 100 125 1 480 87 110 2 600 69 90 3 90 15 6...

Page 30: ...0 2 4 0 600 277 350 500 306 18 17 208 849 1200 4 350 240 736 1000 3 400 380 465 600 2 350 415 426 600 2 350 480 368 500 2 250 600 294 400 2 3 0 324 18 18 208 899 1200 4 350 240 779 1000 3 400 380 492 700 2 500 415 451 600 2 350 480 390 500 2 250 600 312 400 2 3 0 Total Main Line Field Wire Total Ele AMPS Fuse Per Leg KW KW Qnty Volt 1Ø 3Ø 1Ø 3Ø 1Ø 3Ø 342 18 19 208 949 1200 4 350 240 823 1200 4 350...

Page 31: ...not show wiring from terminal block to fuses contactors and heating elements Control circuit only is shown IMMERSION THERMOSTAT WITH OPTIONS Control Circuit LIT0716 Rev A LIT0717 Rev A Wiring Diagrams CUSTOM HI POWER CHP WI 04 Lochinvar Corporation Nashville Tennessee 615 889 8900 Fax 615 547 1000 www Lochinvar com ...

Page 32: ...Diagrams do not show wiring from terminal block to fuses contactors and heating elements Control circuit only is shown POWER CIRCUIT ONE WIRE PER ELEMENT MAIN TERMINAL BLOCK FUSE BLOCKS CONTACTORS HEATING ELEMENT CIRCUIT LIMITED TO 48 AMPS LIT0709 Rev A LIT0712 Rev A Power Circuits fused when total amperage exceeds 120 amps MAIN TERMINAL BLOCK ...

Page 33: ... HEATING ELEMENT POWER CIRCUIT THREE WIRES PER ELEMENT MAIN TERMINAL BLOCK FUSE BLOCKS CONTACTORS HEATING ELEMENT CIRCUIT LIMITED TO 48 AMPS CIRCUIT LIMITED TO 48 AMPS LIT0713 Rev A LIT0714 Rev A 3 Power Circuits fused when total amperage exceeds 120 amps Power Circuits fused when total amperage exceeds 120 amps ...

Page 34: ...07 07 Printed in U S A Lochinvar Corporation Nashville Tennessee 615 889 8900 Fax 615 547 1000 www Lochinvar com ...

Page 35: ...150 to 2500 Gallons Storage Vertical and Horizontal Energy Saving Performance Custom Hi Power Commercial Electric Water Heaters ...

Page 36: ...l l M Mo od de el ls s Dimensions V Ve er rt ti ic ca al l S Sq qu ua ar re e M Mo od de el ls s 1 12 25 50 0 2 25 50 00 0 TOP VIEW TOP VIEW 2 An oversized control panel may be required on models with inputs above 72 kW An oversized control panel may increase the width and depth of the square jacket by up to 2 ...

Page 37: ...0 135 150 37 68 1 2 34 1 4 12 2 2 1 180 HH kW 200 180 200 37 78 34 1 4 12 2 2 1 370 HH kW 250 225 250 39 90 1 4 36 1 4 13 2 2 1 450 HH kW 300 270 300 45 78 1 4 42 1 4 14 3 4 2 2 1 530 HH kW 400 360 400 52 78 1 4 48 1 4 16 2 2 1 750 HH kW 500 450 500 52 90 3 4 48 1 4 16 2 2 1 860 HH kW 600 540 600 58 90 3 4 54 1 4 13 1 2 2 1 2 2 2 340 HH kW 800 720 750 58 102 1 4 54 1 4 13 1 2 2 1 2 2 2 850 HH kW 1...

Page 38: ... 12 12 850 736 368 324 1 328 1 105 488 18 6 18 36 12 12 12 900 780 390 342 1 402 1 166 904 19 7 18 38 19 12 12 950 822 412 360 1 476 1 228 320 20 7 18 40 20 12 12 1 000 865 435 378 1 550 1 289 736 21 7 18 42 14 14 14 1 050 909 455 396 1 624 1 351 152 22 8 18 44 22 15 16 1 100 952 477 414 1 697 1 412 568 23 8 18 46 23 16 16 1 150 995 498 432 1 771 1 473 984 24 8 18 48 16 16 16 1 200 1 040 520 For K...

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