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
Voltage options
for models:
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 Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10–11
TepidGuard
™
Flow Conditions . . . . . . . . . . . . . . . . . . . . . . . . 11
Product Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11–12
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12–13
Special Installation & Operating Instructions . . . . . . . . . . 14–17
IMPORTANT!
Read this entire installation manual to ensure proper installation. When finished with
the installation, file this manual with the owner or maintenance department. Compliance
and conformity to local codes and ordinances is the responsibility of the installer.
Separate parts from packaging and make sure all parts are accounted for before
discarding packaging material. If any parts are missing, do not begin installation until
you obtain the missing parts.
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.
Product warranties may be found on our web site www.keltech-inc.com.
Installation
THIS
SIDE
UP
Packing List
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