Keltech HL Series Installation Instruction
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Keltech HL Series Installation Instruction

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215-1823 Rev. A; ECN 150023
© 2015 Keltech
Page 1 of 20
11/24/2015
Installation
HL-Series
Tankless Heater Models
HL05
Voltage options:
HL06
208V Single and Three Phase
HL10 & L10
240V Single and Three Phase
HL12
277V Single Phase
HL15 & L15
380V Single and Three Phase
HL18 & L18
415V Single and Three Phase
480V Single and Three Phase

Table of Contents

Pre-Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Storage Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Mounting Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Plumbing Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Electric Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Start Up Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Digital Controller Operation . . . . . . . . . . . . . . . . . . . . . . . 10-11
Operational Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-13
Product Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-16
729 S. Grove St., Delton, MI 49046
TEL: 269-623-6395 • 800-999-4320 FAX: 269-623-6398
sales@keltech-inc.com • www.keltech-inc.com

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Summary of Contents for Keltech HL Series

  • Page 1: Table Of Contents

    Special Installation & Operating Instructions . . . . . . . . . . 17-20 215-1823 Rev. A; ECN 150023 729 S. Grove St., Delton, MI 49046 © 2015 Keltech TEL: 269-623-6395 • 800-999-4320 FAX: 269-623-6398 Page 1 of 20 11/24/2015 sales@keltech-inc.com •...
  • Page 2 If any parts are missing, do not begin installation until you obtain the missing parts. A qualified plumber or electrician should install and service this system. Install system according to these instructions and in compliance with national and local codes. Keltech • 215-1823 Rev. A; ECN 150023 11/24/2015...

  • Page 3: Pre-Installation Information

    Standard flow activation: 0 .5 gpm Certifications Keltech Electric Tankless Water Heaters are certified by ETL to UL499 and third party certified to NSF/ANSI 372 . WARNING For safe operation of the heater, observe all the warning labels as indicated.

  • Page 4: Mounting Heater

    Install the pressure and temperature relief valve on hot water outlet immediately following the union . 14" (356) NOTICE! Valve must empty into a drain. Keltech • 215-1823 Rev. A; ECN 150023 11/24/2015...

  • Page 5: Plumbing Installation

    (33) (38) Power Entrance 1 .3" (33) L Series heaters have 1/2" inlet and outlet and require 1/2" copper tubing. 3/4" threaded unions are used for the L Series with NEMA enclosure. Keltech • 215-1823 Rev. A; ECN 150023 11/24/2015...

  • Page 6: Plumbing Installation

    3/4" Female (51) 11" Plumbing 3/4" Female (59) NPT Outlet (279) NPT Inlet and Electrical Configurations NEMA 4/4X 24" 25-1/2" (610) (648) 14-1/2" 7" (178) N4 (368) 8-3/4" (222) N4X 16" (406) Keltech • 215-1823 Rev. A; ECN 150023 11/24/2015...

  • Page 7: Electric Installation

    Voltage Amps kWatts Size national codes and regulations. HL060/480D 12 AWG* WARNING All Keltech heaters must be fused HL120/480D 8 AWG* in accordance with National HL180/480D 6 AWG* Electric Code (NEC) for the full load amperage listed on the nameplate...

  • Page 8: Start Up Check List

    (See Electrical Specifications chart) . All electrical is installed in accordance with national and local electrical codes, including fuse size and rating .  Appropriate earth ground is installed to the lug provided within the enclosure . Keltech • 215-1823 Rev. A; ECN 150023 11/24/2015...

  • Page 9: Start Up

    Proceed to Step F once you have completed the steps in the Special Instructions & Operation Instructions or if you do not have this option . Keltech • 215-1823 Rev. A; ECN 150023 11/24/2015...

  • Page 10: Digital Controller Operation

    Layout Diagram ON - Heating OFF - No Flow Setpoint Output Temp . Temp . Setpoint Output Temp . No Flow Indicators Output Output Temp . Temp . Setpoint Infinity Setpoint Advance Down Keltech • 215-1823 Rev. A; ECN 150023 11/24/2015...
  • Page 11 OFF - No Flow Output Indicators Output Output Temp . Output Temp . Temp . Setpoint No Flow Setpoint Temp . Temp . Setpoint Up EZ Key Setpoint Down Infinity Key Advance Key Keltech • 215-1823 Rev. A; ECN 150023 11/24/2015...

  • Page 12: Operational Tests

    11 .4 lpm 13 .3 lpm 15 .1 lpm Models 208V, 240V, 277V, 480V ΔT °C ΔT °C ΔT °C ΔT °C ΔT °C ΔT °C ΔT °C HL05 HL06 HL10 HL12 HL15 HL18 Keltech • 215-1823 Rev. A; ECN 150023 11/24/2015...

  • Page 13: Product Options

    FDA Approved for Food Contact (use in deionized water applications) . N4-EXP2 & N4X-EXP2 (Explosion Proof Purge System): Keltech's EXP2 option makes heaters compliant for classified areas; Class I Division 2, Groups A, B, C, D, Temp Code: T5 . The Purge System requires a supply of clean instrument air or inert gas (provided by installer) .

  • Page 14: Maintenance

    . Power to the heater does not need to be turned off to do this . Keltech • 215-1823 Rev. A; ECN 150023 11/24/2015...

  • Page 15: Troubleshooting

    Make sure alarm controller is not in diagnostic mode . Alarms do not clear . Check power limit setting . Check operation mode . Check alarm output function . Check temperature setting . Keltech • 215-1823 Rev. A; ECN 150023 11/24/2015...

  • Page 16: Troubleshooting

     All internal breakers must be in the ON position for the unit to work . For additional information on Troubleshooting or other information, please call Keltech Inc . technical support at 1-800-999-4320 . Please have Model No . and Serial No . available when seeking technical assistance . Serial No .

  • Page 17: Special Installation & Operating Instructions

    Tankless Water Heaters With Optional Class I Division 2 Purge EXP2 Option General Information All Keltech Tankless Water Heaters with a model number suffix of – EXP2 have been fitted with a Z purge system to pressurize the enclosure suitable for use in Class I Division 2 Hazardous Locations .
  • Page 18 Li plus inductance of interconnecting cabling is less than La fo the associated apparatus 5 . "Simple Apparatus" is a device that will not generate or store more than 1 .2V, 0,1A, 25mW or 20uJ Keltech • 215-1823 Rev. A; ECN 150023 11/24/2015...
  • Page 19 “Pressurized” indicator is green! Commissioning Test Commissioning Continuous Flow Purge Keltech Option EXP2 System: 1 . Open the air or gas supply shutoff valve . 2 . Adjust the Flow Control Valve (FCV) so that the enclosure pressure rises to the point where the "Pressurized"...
  • Page 20 The source of air is uncontaminated . The interlock and alarms function correctly . Approval labels are legible and undamaged . Adequate spare parts are carried . The action of pressure failure is correct . Keltech • 215-1823 Rev. A; ECN 150023 11/24/2015...

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