Lochinvar CHP-WI-04 Installation And Service Manual
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Lochinvar CHP-WI-04 Installation And Service Manual

Lochinvar CHP-WI-04 Installation And Service Manual

Commercial electric water heaters 9kw – 900kw input models
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INSTALLATION AND SERVICE MANUAL
Installation and service must be performed by
Qualified Service Personnel Only.

WARRANTY

Factory warranty (shipped with unit) does not
apply to units improperly installed or improperly
operated.
Experience has shown that improper installation
or system design, rather than faulty equipment, is
the cause of most operating problems.
Excessive water hardness causing a lime/scale
build-up in the heater and/or on the immersion
heating elements is not the fault of the equipment
and is not covered under the manufacturer's
warranty. (See Water Treatment and Water
Chemistry)
Do not energize electrical system before heater
is completely filled with water. Damage caused
to the immersion heating elements by dry fire is
not covered under the manufacturer'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
manufacturer's warranty. Under no circumstance
will the manufacturer be liable for consequential
damages resulting from the installation or use of
this equipment. Correct installation procedure
and local codes must be adhered to.
NOTE:
Retain this manual for future reference.
Commercial Electric
Water Heaters
9kW – 900kW Input Models
not
covered
by
SPECIAL INSTRUCTIONS
Improper Installation, Adjustment,
Alteration, Service or Maintenance
can cause injury or property damage. Refer
to this manual. For assistance or additional
information consult a qualified installer,
service agency or the electric utility.
CHECKING EQUIPMENT
This manual supplies information for the
installation, operation and servicing of the
appliance. It is strongly recommended that this
manual
be
reviewed
proceeding with an installation. Upon receiving
equipment, check for signs of shipping damage.
Pay particular attention to parts accompanying
the water heater, which may show signs of being
hit or otherwise being mishandled. Verify total
number of pieces shown on packing slip with
those actually received. In case there is damage
or a shortage, immediately notify carrier.
DO NOT
USE THIS APPLIANCE IF ANY
PART HAS BEEN UNDER WATER. THE
POSSIBLE DAMAGE TO A FLOODED
APPLIANCE CAN BE EXTENSIVE AND
PRESENT NUMEROUS SAFETY HAZARDS.
the
ANY APPLIANCE THAT HAS BEEN UNDER
WATER MUST BE REPLACED.
WARNING:
manual is not followed exactly, a fire or
explosion may result causing property
damage, personal injury or loss of life.
Do not store or use gasoline or other
flammable vapors and liquids in the vicinity of
this or any other appliance.
1
CHP-I&S-01
TO OWNER
WARNING:
completely
If the information in this
before

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Summary of Contents for Lochinvar CHP-WI-04

  • Page 1: Warranty

    CHP-I&S-01 INSTALLATION AND SERVICE MANUAL Commercial Electric Water Heaters 9kW – 900kW Input Models Installation and service must be performed by SPECIAL INSTRUCTIONS Qualified Service Personnel Only. TO OWNER WARRANTY WARNING: Factory warranty (shipped with unit) does not Improper Installation, Adjustment, apply to units improperly installed or improperly Alteration, Service or Maintenance operated.

  • Page 2: Table Of Contents

    CONTENTS Warranty ......1 Start-Up Procedure Safety Warnings ....1 Filling the Water Heater .
  • Page 3 FIG. 1 Front View Vertical Round Models FIG. 2 Front View Vertical Square Models FIG. 3 Front View Horizontal Models...

  • Page 4: Codes

    These shall be carefully followed in all cases. OWNER WARNING Authorities having jurisdiction shall be consulted The information contained in this manual before installations are made. In the absence of is intended for use by qualified professional such requirements, the installation shall conform installers, service technicians or the electric to the latest edition of the National Electrical utility.

  • Page 5: Drain Pan Requirements

    The appliance must be installed so that Drain Pan on Horizontal Models the electrical components are protected and Vertical Square Models from water (dripping, spraying, etc.) 1250 Gallons and Larger during appliance operation and service (replacing of fuses, elements, etc.) The lower pan of the horizontal water heater jacket or vertical square water heater jacket is Appliances located in a garage or parking...

  • Page 6: Clearances

    CLEARANCES FROM COMBUSTIBLE CONSTRUCTION 12" 12" 6" 6" 36" 36" FIG. 4 Clearances from Combustible Construction FIG. 5 Clearances from Combustible Construction 6" 12" FIG. 6 Clearances from Combustible Construction TABLE A CLEARANCES FROM COMBUSTIBLE CONSTRUCTION Right Side - 6" (15cm) (24" (0.61m) for high kW vertical square models with an additional control panel on right side) Rear - 0"...

  • Page 7: Mounting

    Maintain minimum specified clearances for TEMPERATURE & PRESSURE HOT WATER adequate operation. All installations must allow RELIEF VALVE OUTLET sufficient space for servicing the electrical components, water pipe connections, piping and other auxiliary equipment, as well as the appliance. Multiple appliances may be installed in a modular water heater installation.

  • Page 8: Tank Construction

    (871˚C) to insure a molecular fusing of glass and NOTE: Before making steel to protect the steel base metal against connections to the cold water inlet or hot corrosion . A magnesium anode(s) is standard to water outlet, insure that all piping is clean and help prevent dissipation of the tank material by free of material or scale.

  • Page 9: Cathodic Protection

    discharge! WARNING: CATHODIC PROTECTION WATER HEATER IS EQUIPPED FOR OPERATION ON ONE Hydrogen gas can be produced in a hot water VOLTAGE ONLY. Check the rating plate on system that has not been used for a long period of the front of the control panel access for the time (generally two weeks or more).

  • Page 10: Jacket Assembly

    initial operation. Operation of a water heater STANDARD EQUIPMENT without a completely filled tank may result in serious damage to the appliance and heating Your commercial electric water heater is element burn out. equipped with the following as standard equipment. 5.

  • Page 11: Components And Controls

    OPTIONAL EQUIPMENT COMPONENTS AND CONTROLS The following items are available as extra cost options. • Electronic low water cut-off prevents TERMINAL BLOCK GROUND LUG energizing of the heater when it is not filled with water. • Pilot lights – Monitor on-off cycle of contactors.

  • Page 12: Fuses And Fuse Blocks

    The power to the immersion electric heating FUSE AND FLUE BLOCKS elements is switched by a definite purpose magnetic contactor. The contactor is supplied with 120 VAC from the control circuit when the immersion thermostat senses a drop in stored water temperature below the desired set point.

  • Page 13: Immersion Thermostat

    DANGER: IMMERSION THERMOSTAT(S) Full power is present whenever the cabinet door is opened, even with the pilot switch(es) turned off. Set temperature control to the lowest setting which satisfies the hot water requirements of the system. Lower water temperatures help minimize scale formation on the heating elements.

  • Page 14: Risk Of Scald Warnings

    TEMPERATURE ADJUSTMENT D A N G E R • Water temperature over 125˚F can 1. Turn “OFF” the electrical power to the water cause severe burns instantly or death from scalds. heater. If the power disconnect point is out of •...
  • Page 15 The water heater uses an optional adjustable Access to the control is achieved by opening the electronic temperature control to provide staged hinges control panel door covering the electrical ON/OFF control of the electric heating elements. components. Four programming keys are Operation is based on temperature input from an provided to program set point and differential immersion temperature sensor.

  • Page 16: Display

    point and differential the control will sequence DISPLAY both stages on and off with only a slight delay Once power is applied to the temperature between switching of the stages. The control is controller the display will countdown from 210 normally programmed with a few degrees until the display reads zero.

  • Page 17: Temperature Adjustment

    PROGRAMMING WARNING: HAZARD OF ELECTRICAL SHOCK – NOTE: Full power is present whenever the cabinet When power is initially door is open and the main power applied to a new water heater, the control disconnect is in the “ON” position, even points will be pre-programmed.

  • Page 18: Error Messages

    OE - ROM Error NOTE: control values The internal ROM of the microprocessor in programmed into memory will not be lost the boiler’s electronic temperature control is because of a power failure. defective. This error cannot be field repaired. Replace the water heater’s electronic ERROR MESSAGES DISPLAYED BY THE temperature control.

  • Page 19: Immersion Heating Elements

    reset multiple times. The source of the problem element blades are mounted on a single hex-head must be found and corrected to insure proper screw-in mounting flange. The element flange operation. The limit control is covered with an mounts into a 1 1/2” NPT threaded connection insulation blanket which must be removed to welded to the storage tank.

  • Page 20: Low Water Cut-Off

    LOW WATER PRESSURE SWITCH LOW WATER CUTOFF (Optional) (Optional) A low water pressure switch is available as an option on this water heater. A water pressure switch is used to monitor the water pressure in the water 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.

  • Page 21: Time Clock

    electrical input of the water heater in the summer PILOT LIGHTS (Optional) months when ground water temperatures are warmer and full electrical input from the The water heater may be provided with optional immersion heating elements is not required. The pilot lights to provide an external indicator for water heater may be restored to full input by each contactor or stage of heating elements that is...

  • Page 22: Start-Up Procedure

    An alarm bell with silencing switch is available as the water heater’s temperature and pressure relief an option on this water heater. The alarm bell can valve opens to relieve the excess pressure. The be used to provide an audible indication of a temperature and pressure relief valve is not control sensed malfunction.

  • Page 23: Start-Up Checks

    13. As the water heater starts heating, check the CAUTION: The power supply must contactors for “buzzing” or “chattering” remain off until the water heater and all during operation. If noise is detected, turn off related piping are completely filled with water main power, open the control panel and clean to insure that there will not be a possible contact...

  • Page 24: Shutdown Procedure

    4. Close and lock the electrical control panel door. 6. The water heater is now shut down and ready for service or maintenance. 5. Turn on the main electrical power to the water heater. 7. Follow the filling and start up procedure to place the water heater back into service.

  • Page 25: Water Chemistry

    should be metallic pipe or a high temperature Water heater maintenance includes periodic tank plastic pipe (CPVC, etc.) to insure that hot water flushing, cleaning and removal of lime scale from flow will not damage the discharge piping from the heating elements. Where used, the water the relief valve.
  • Page 26 Scale accumulation in the bottom of the storage 3. Disconnect the wires attached to the element tank may be removed by turning off main power terminals. Try not to disturb the wiring and draining the tank. Once all water is removed, unnecessarily and reconnection will be easier.

  • Page 27: Trouble Shooting

    5. Cold incoming water temperature will TROUBLE SHOOTING lengthen the time required to heat water to the desired temperature. If the heater was Checklist installed in the summer when incoming water Before calling for service, check the following temperature was warm, colder ground water points to see if the cause of trouble can be in the winter months can create the effect of identified and corrected.
  • Page 28 Excessive water pressure is not the most common cause of relief valve leakage. It is often caused by a “closed system.” A check valve, back flow preventer or pressure reducing valve, in the inlet system will not permit the expanded hot water volume to equalize pressure with the main.
  • Page 29 Lochinvar Corporation Electrical Data Nashville, Tennessee 615-889-8900 Fax: 615-547-1000 CHP-WI-03 www.Lochinvar.com CHP-AMP-01 ELECTRICAL DATA FOR CUSTOM HI POWER ® AMP CHART Total Main Line Field Wire Total Main Line Field Wire Total Ele. AMPS Fuse Per Leg Total Ele. AMPS...
  • Page 30 ELECTRICAL DATA FOR CUSTOM HI POWER ® AMP CHART continued Total Main Line Field Wire Total Main Line Field Wire Total Ele. AMPS Fuse Per Leg Total Ele. AMPS Fuse Per Leg Qnty Volt. 1Ø 3Ø 1Ø 3Ø 1Ø 3Ø Qnty Volt.
  • Page 31 Lochinvar Corporation Wiring Diagrams Nashville, Tennessee 615-889-8900 Fax: 615-547-1000 www.Lochinvar.com CHP-WI-04 CUSTOM HI-POWER IMMERSION THERMOSTAT WITH OPTIONS (Control Circuit) LIT0716 Rev. A BASIC IMMERSION THERMOSTAT (Control Circuit) NOTE—Diagrams do not show wiring WIRE COLOR CODE from terminal block to fuses, contactors, R—Red...
  • Page 32 CUSTOM HI POWER ® (CHP) WIRING DIAGRAMS SOLID STATE STEP CONTROL WITH OPTIONS (Control Circuit) MAIN TERMINAL BLOCK NOTE—Diagrams do not show wiring WIRE COLOR CODE from terminal block to fuses, contactors, and heating elements. Control circuit R—Red W—White only is shown. B—Black BL—Blue LIT0709 Rev.
  • Page 33 CUSTOM HI POWER ® (CHP) WIRING DIAGRAMS POWER CIRCUIT (TWO WIRES PER ELEMENT) MAIN TERMINAL BLOCK FUSE BLOCK CONTACTOR Power Circuits fused when total amperage exceeds 120 amps. HEATING ELEMENT CIRCUIT LIMITED TO 48 AMPS LIT0713 Rev. A POWER CIRCUIT (THREE WIRES PER ELEMENT) Power Circuits fused MAIN TERMINAL BLOCK when total amperage...
  • Page 34 Lochinvar Corporation Nashville, Tennessee 615-889-8900 Fax: 615-547-1000 www.Lochinvar.com 07/07-Printed in U.S.A.
  • Page 35 Custom Hi-Power ® Commercial Electric Water Heaters 150 to 2500 Gallons Storage Vertical and Horizontal Energy Saving Performance...
  • Page 36 Dimensions V V e e r r t t i i c c a a l l S S q q u u a a r r e e M M o o d d e e l l s s 1 1 2 2 5 5 0 0 - - 2 2 5 5 0 0 0 0 V V e e r r t t i i c c a a l l R R o o u u n n d d M M o o d d e e l l s s 1 1 5 5 0 0 - - 1 1 0 0 0 0 0 0 *An oversized control panel may be required on models with inputs above 72 kW.

  • Page 37: Specifications

    Specifications Max. Gal. Water Shipping Model Cap. Conn. Weight Vertical Round Inlet Outlet (.lbs) HV*kW-150 65-1/2” 32” 38-3/4” 7-3/4” 1-1/2” 1-1/2” HV*kW-200 78” 32” 38-3/4” 7-3/4” 1-1/2 ” 1-1/2” HV*kW-250 92” 34” 40-3/4” 19-1/2” 1-1/2 ” 1-1/2” 1,165 HV*kW-300 80” 40”...
  • Page 38 1,150 1,771 1,473,984 48/16 16/16 1,200 1,040 For KW above 432 or other voltages please consult factory Lochinvar Corporation • 300 Maddox Simpson Pkwy • Lebanon, TN • 615-889-8900 / Fax: 615-547-1000 www.Lochinvar.com CHP-10 2/08–Printed in U.S.A. (Replaces CHP-09 7/06)

This manual is also suitable for:

Chp-amp-01

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