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215-1822 Rev. A; ECN 140011
© 2015 Keltech
Page 1 of 17
10/2/2015
Installation
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
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 CLE18
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Page 1: Table Of Contents
Installation 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 . - Page 2 Separate parts from packaging and make sure all parts are accounted for before discarding any packaging material. If any parts are missing, do not begin installation until you obtain the missing parts. Keltech • 215-1822 Rev. A; ECN 140011 10/2/2015...
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Page 3: Pre-Installation Information
Minimum flow activation: 0 .75 gpm Certifications Keltech Electric Tankless Water Heaters are certified 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 . -
Page 4: Mounting Heater
Installation should be performed by a qualified plumber or electrician. If heater is installed where freezing can occur, specify Keltech's ENHT Freeze Protection option. Keltech's ENHT option must be purchased at the time of order. Do not install in areas where freezing can occur without the ENHT option listed in the model number. -
Page 5: Plumbing Installation
. Reference the product (278) 20" (508) options sections or contact your local Bradley Representative for product options . Suggested Location For Power Entrance . Entrance Holes To Be Provided By Installer . Keltech • 215-1822 Rev. A; ECN 140011 10/2/2015... -
Page 6: Electric Installation
WARNING Install product to rated line voltage in accordance to current local and national codes and regulations. 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. -
Page 7: Start Up Check List
Appropriate conductors for unit routed through conduit and secured to power block inside the enclosure . 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 on enclosure backplate . Keltech • 215-1822 Rev. A; ECN 140011 10/2/2015... -
Page 8: Start Up
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 to remain full of water. Freezing of the heater can cause serious damage. Keltech • 215-1822 Rev. A; ECN 140011 10/2/2015... -
Page 9: Digital Controller Operation
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 • 215-1822 Rev. A; ECN 140011 10/2/2015... -
Page 10: Operational Tests
30 .2 lpm 34 .1 lpm 37 .8 lpm Models 480/600V ΔT °C ΔT °C ΔT °C ΔT °C ΔT °C ΔT °C ΔT °C ΔT °C ΔT °C ΔT °C CLE18 CLE25 Keltech • 215-1822 Rev. A; ECN 140011 10/2/2015... -
Page 11: Product Options
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 12: Maintenance
. Power to the heater does not need to be turned off to do this . Keltech • 215-1822 Rev. A; ECN 140011 10/2/2015... -
Page 13: 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 14: 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 15 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 • 215-1822 Rev. A; ECN 140011 10/2/2015...
- Page 16 “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 Flow Control Valve (FCV) so that the enclosure pressure rises to the point where the "Pressurized"...
- Page 17 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 • 215-1822 Rev. A; ECN 140011 10/2/2015...
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