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Keltech SNA-108 Installation Manual

Manual is about: Keltech SNA-Series Tankless Heater Models

Summary of SNA-108

  • Page 1

    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 installation 215-1815 rev. B; ecn 130011 © 2014 keltech page 1 of 17 10/17/2014 sna-series tankless heater models sna-36 sna-54 sna-63 sna-72 sna-108 sna-126 sna-144 volt...

  • Page 2: Pre-Installation Information

    2 sna-series tankless heater installation 10/17/2014 keltech • 215-1815 rev. B; ecn 130011 pre-installation information warning! 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. ...

  • Page 3: Storage Instructions

    3 installation sna-series tankless heater keltech • 215-1815 rev. B; ecn 130011 10/17/2014 sccr rating keltech electric tankless water heaters are certified by etl to ul499, ul50e and csa22 .2 no 88 . It is designed to comply with ul508a . The sccr load rating is marked on the enclosure per ul508a r...

  • Page 4: Mounting Heater

    4 sna-series tankless heater installation 10/17/2014 keltech • 215-1815 rev. B; ecn 130011 mounting heater 1 warning! High voltage shock. Disconnect power supply before performing any work inside the heater enclosure. Caution! If heater is installed where freezing can occur, specify keltech's enht f...

  • Page 5: Plumbing Installation

    5 installation sna-series tankless heater keltech • 215-1815 rev. B; ecn 130011 10/17/2014 plumbing installation 2 caution! To avoid water damage, install a drain pipe from the pressure relief valve to an unrestricted drain. B install one union on the water inlet side of the heater and another union...

  • Page 6: Electric Installation

    6 sna-series tankless heater installation 10/17/2014 keltech • 215-1815 rev. B; ecn 130011 electric installation 3 caution! Failure to properly ground the unit(s) per the national electric code could result in injury or death. B using a hole punch, cut a hole the proper size for conduit connection; ...

  • Page 7: Start Up Check List

    7 installation sna-series tankless heater keltech • 215-1815 rev. B; ecn 130011 10/17/2014 start up check list 4 plumbing system is set in a vertical, level, and upright position with the outlet located at the top . System is mounted by legs (2) bolted to the floor (3/8" dia . Minimum) . Confirm ins...

  • Page 8: Start Up

    8 sna-series tankless heater installation 10/17/2014 keltech • 215-1815 rev. B; ecn 130011 start up 5 a slowly turn on water supply to the unit with the enclosure door open . C turn off the connected process and check the entire system to verify leak-free installation . G turn on the connected proce...

  • Page 9: Digital Controller Operation

    9 installation sna-series tankless heater keltech • 215-1815 rev. B; ecn 130011 10/17/2014 digital controller operation 6 the preprogrammed digital controller is mounted through the bezel on the enclosure door. The digital controller will not be powered until water is flowing through the heater. The...

  • Page 10

    10 sna-series tankless heater installation 10/17/2014 keltech • 215-1815 rev. B; ecn 130011 perform operational test no. 1 a ensure the enclosure door is closed . B set the 3-pole switch or circuit breaker to the on position . C pull out the emergency stop button, heater will automatically perform a...

  • Page 11: Tepidguard

    11 installation sna-series tankless heater keltech • 215-1815 rev. B; ecn 130011 10/17/2014 output heating capacity is reduced if these heaters are installed on 415v, 400v or 380v 3-ph . Contact the factory to supply this information . Satisfactory performance of the heater is dependent upon a speci...

  • Page 12: Maintenance

    12 sna-series tankless heater installation 10/17/2014 keltech • 215-1815 rev. B; ecn 130011 maintenance preventative maintenance is important for optimal performance of the heater . To ensure the heater works properly, always keep the inside of the enclosure dry . Moisture inside an enclosure increa...

  • Page 13

    13 installation sna-series tankless heater keltech • 215-1815 rev. B; ecn 130011 10/17/2014 troubleshooting using the flow limit control board (flcb) problem solution the heater does not work or works intermittently . Check that the flow sensor located at the inlet is spinning with water running . C...

  • Page 14

    14 sna-series tankless heater installation 10/17/2014 keltech • 215-1815 rev. B; ecn 130011 special installation and operating instructions tankless water heaters with optional class i division 2 purge exp2 option and exp2lc and exp2lcpm general information all keltech tankless water heaters with a ...

  • Page 15

    15 installation sna-series tankless heater keltech • 215-1815 rev. B; ecn 130011 10/17/2014 non type z pressurized equipment an alarm shall be provided to indicate failure of the protective gas supply to maintain the required pressure . Piping for the protective gas shall be protected against mechan...

  • Page 16: Is Installation Continued…

    16 sna-series tankless heater installation 10/17/2014 keltech • 215-1815 rev. B; ecn 130011 is installation continued… all quarter turn latches in the door of the pe must be fully latched for proper operation . Power to the pe must be turned off before opening the enclosure . Warning! This pressuriz...

  • Page 17

    17 installation sna-series tankless heater keltech • 215-1815 rev. B; ecn 130011 10/17/2014 special installation maintenance routine maintenance of the system (every 6 months) recommended maintenance of the systems is as follows: repeat commissioning test at least every six months . The test include...