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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.
Read this manual BEFORE using this equipment. Failure to read and follow all safety and
use information can result in death, serious personal injury, minor burns, property damage, or
damage to the equipment. Keep this Manual for future reference. Failure to comply with proper
installation and maintenance instructions could contribute to the heater’s failure.
ASSE standard 1016, 1069 or 1070 listed devices should be used at fixtures to prevent possible
injury. Severe bodily injury including scalding, chilling, and/or death may result depending
upon system water pressure changes and/or supply water temperature changes.
These heaters should never be used to provide “anti-scald” or “anti-chill” service.
These heaters do not provide protection from supply or outlet pipe freezing.
Failure to ground this system may result in death or serious injury. Consult local building
and plumbing codes prior to installation. Should these codes differ from the information in
the Manual, follow the local codes. Inquire with governing authorities for additional local
requirements.
Regular checking and cleaning of the heater’s internal components and check stops is
necessary for maximum life and proper product function. Periodic inspection and yearly
maintenance by a licensed contractor is required. Corrosive water conditions, and/or
unauthorized adjustments or repairs could render the heater ineffective for its intended service.
Frequency of cleaning and inspection depends upon local water conditions. For heaters with
adjustable output temperatures, check and adjust as needed at initial installation and on a
quarterly basis.
General Information
The Keltech Tankless Water Heater provides instant and precise temperature-controlled hot water . To insure proper
performance, install the heater according to the following installation instructions and in compliance with applicable
national and local codes .
Keltech can supply heaters for most commercial and industrial hot water applications . Flow rates and temperature
figures are important for proper sizing . If needed to meet certain temperature demands, flow control devices are
readily available . See Table 3 for temperature rise specifications . Contact your local Keltech Representative or
KELTECH, INC.
for further information on available models .
Operation and Setup
SNA-Series heaters supply an unlimited amount of hot water with specific flow and temperature rise capabilities .
These heaters are energy efficient, reliable, and provide optimum performance in the most demanding applications .
Application Specific Requirements
The SNA-Series can be used in many different applications that require safety showers or safety shower eye/face
wash combination fixtures .
For use in a recirculation loop, the incoming loop temperature should not exceed 140°F (60°C) to ensure water
cooling of the solid state relay .
For applications utilizing quick close valves or solenoid valves, it is important to install a hammer arrestor or surge
tank close to the point of use to absorb pressure spikes .
ASME CERTIFICATION:
Please verify if your State Boiler Code requires ASME Certification and that you have the
proper heater to meet your code requirements prior to installation .
Installation Considerations
Maximum operating pressure: 160psi .
Minimum flow activation: 1 .5 gpm
