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729 S. Grove St., Delton, MI 49046
TEL: 269-623-6395 • 800-999-4320 FAX: 269-623-6398
[email protected] • www.keltech-inc.com

Installation

215-1822 Rev. A; ECN 140011

© 2015 Keltech

Page 1 of 17

10/2/2015

CLE Series

Tankless Heater Models

CLE18, CLE25
Voltage options:
600V 3-phase
480V 3-phase
415V 3-phase
400V 3-phase
380V 3-phase

Table of Contents

Pre-Installation Information   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 2–3
Storage Instructions  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 3
Mounting Heater .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4
Plumbing Installation   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 5
Electric Installation  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 6
Start Up Check List   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 7
Start Up   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 8
Digital Controller Operation   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 9
Operational Tests   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 10–11
Product Options   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 11
Maintenance .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 12
Troubleshooting   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 12–13
Special Installation & Operating Instructions   .  .  .  .  .  .  .  .  .  . 14–17

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Содержание CLE18

Страница 1: ...s CLE18 CLE25 Voltage options 600V 3 phase 480V 3 phase 415V 3 phase 400V 3 phase 380V 3 phase Table of Contents Pre Installation Information 2 3 Storage Instructions 3 Mounting Heater 4 Plumbing Installation 5 Electric Installation 6 Start Up Check List 7 Start Up 8 Digital Controller Operation 9 Operational Tests 10 11 Product Options 11 Maintenance 12 Troubleshooting 12 13 Special Installation ...

Страница 2: ...in serious burns or death Disconnect power supply before performing any work in the enclosure Failure to ground this system may result in death or serious injury Make sure that all water supply lines have been flushed and then completely turned off before beginning installation Debris in supply lines can cause valves to malfunction CAUTION Hot pipes Do not touch May cause minor burns NOTICE These ...

Страница 3: ... by ETL to UL499 UL50E CSA22 2 No 88 and NFPA 496 Heaters are compliant to NEC NFPA 70 and Canadian Electrical Code C22 1 WARNING For safe operation of the heater observe all the warning labels as indicated Storage Instructions NOTICE Keep Keltech Electric Tankless Water Heaters stored in original packaging until installation Recommended storage criteria Store Keltech Electric Tankless Water Heate...

Страница 4: ...he side of the crate to help with alignment Secure heater by bolting each leg to the floor using 3 8 anchor bolts C Install the pressure and temperature relief valve on hot water outlet immediately following the union NOTICE Valve must empty into a drain For best results install heater as close as possible to the point of use Installation should be performed by a qualified plumber or electrician L...

Страница 5: ... If end use fixture is not at the highest point in the plumbing loop then an automatic air vent valve must be added at the highest point in the system or at any drop to eliminate trapped air Components Needed 2 Union 3 4 Shutoff Valve Pressure and Temperature Relief Valve 150 psi Y Strainer 100 mesh or Inline Filter 150 microns 2 Gate or Ball Type Valves Drain pipe Water hammer arrestor recommende...

Страница 6: ...ded machine tool wire from an approved isolating 3 pole switch or circuit breaker NOTICE Make sure the electrical cable is the correct size to carry 100 of the full load current See table for proper wire sizes WARNING All Keltech heaters must be fused in accordance with National Electric Code NEC for the full load amperage listed on the nameplate rating for each heater ELECTRICAL SPECIFICATIONS FO...

Страница 7: ... valve and drain Shutoff valve is installed after pressure and temperature relief valve on outlet if required by local or national plumbing codes If the tepid water process is not at the highest point in the plumbing loop then an automatic air vent valve must be added at the highest point in the system plumbing loop to eliminate trapped air Electrical Verify supply voltage matches the indicated vo...

Страница 8: ...eed air properly will damage elements and cause heater malfunction Be sure that plumbing and electrical are complete per Start Up Check List NOTICE If your heater is mounted in an area where freezing temperatures are possible an ENHT Freeze Protection Option should be specified Heaters must be powered at all times to be Freeze Protected If continuous power is not possible do not allow the heater t...

Страница 9: ...n CLE models Infinity Key Back to Home page Advance Key Advances through parameter prompts Auto Man Off C r71 Turns Control Loop On Manual Off disabled on CLE models XX X h Pr1 Heater Power disabled on CLE models no AUt1 Autotune Contact Factory disabled on CLE models C or F C_F1 Change Temperature Units from F to C Output Indicators 1 5 Output 1 2 3 4 or 5 are active and operating if these LEDs a...

Страница 10: ...r display on controller goes from off to setpoint temperature Located on the panel is a 18kW or 25kW green ready light When illuminated the safety circuit is engaged and ready for use Heater will not energize heating elements if the inlet water temperature is equal to or greater than the temperature set on the digital controller If the water flow exceeds maximum heating capacity of the heater the ...

Страница 11: ...onnection point for DCS monitoring In the event of a power interruption or ENHT system failure when internal enclosure temperatures reach 40 F 4 4 C or lower the unit will notify a facilities control monitoring system that the unit is unable to maintain freeze protection Regardless of state of power to the unit this warning notifies maintenance personnel and provides an opportunity to correct the ...

Страница 12: ...peratures above 100 F 38 C causing the manual reset safeties to trip Reset bimetal manual safeties and lower heat trace temperature to below 100 F All heaters require filtration of 150 microns or smaller to ensure proper operation Y strainers or additional filtration should be verified and cleaned at least every 6 months or more often in areas where hard water sediment is present in the water To c...

Страница 13: ...cal Specifications Table in Step 3 for proper requirements 2 Unit is receiving voltage from all 3 phases of the power source A load voltage reading is also helpful 3 Verify the functionality of the flow switch 4 At the wires from the flow switch read Open without flow and Closed with flow 5 Water flow through the heater is adequate to activate the flow switch at 0 75 gpm standard IMPORTANT Turn po...

Страница 14: ...et fitting here EXP2 Installation Notes 1 Any tubing conduit or fittings connected to the Pressurized Enclosure PE must conform to local codes for flammability ratings 2 All egress into PE must be plugged and properly sealed to minimize leakage of purge air Use hazardous location sealing fittings suitable for Class I locations within 18 of enclosure 3 The EXP2 purge system option is a continuous f...

Страница 15: ...osure and the protective gas supply The alarm actuator shall be mechanical pneumatic or electrical Electrical alarms and electrical alarm actuators shall be approved for the location in which they are installed No valves shall be permitted between the alarm actuator and the enclosure Intrinsically Safe IS Installation 1 Electrical equipment connected to associated apparatus should not use or gener...

Страница 16: ...NFPA496 requirements No valves may be fitted between the Expo Technologies system and the alarm switch WARNING Never turn on the power without purging first unless you have proved the interior of the PE is gas free and checked that the Pressurized indicator is green Commissioning Test Commissioning Continuous Flow Keltech Options EXP2 System 1 Open the air or gas supply shutoff valve 2 Adjust the ...

Страница 17: ...larms function correctly Check the Relief Valve and any other Spark Arrestors Remove any debris or corrosion or replace the Spark Arrestor Check the condition of the air supply filter element Clean or replace it as necessary Periodic Maintenance Every 18 24 months At least every two years the following additional checks are recommended Apparatus Heater Purge Systems Alarms etc is suitable for the ...

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