Installation
Pre-Installation Information
General Information
The
N Series Skid
(
C
Series) Systems provide instant and precise temperature-controlled hot water. Pre
-
assembled and
pre-piped with two Laars Tankless Water Heaters mounted back-to-back and secured to a heavy-duty steel skid. These
systems can be used for most commercial and industrial hot water applications. To ensure proper performance, install
the heater according to the following installation instructions and in compliance with applicable national and local
codes.
See Maximum Temperature Rise Specifications chart. Contact a Laars representative for further information on available
flow devices.
Operation and Setup
N Series Skid
(
C
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
N Series Skid
(
C
Series) can be used in many different applications that require custom tuning for specific
applications to maximize performance of the heater.
For use in a re-circulation loop, the incoming loop temperature should not exceed 140°F (60°C).
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: 150 psi (10 bar)
ASME maximum operating pressure: 160 psi (11 bar)
Standard flow activation: 3.0 gpm (11.4 lpm) with minimum inlet pressure of 30 psi (2.1 bar)
Certifications
Certified by ETL to UL499, CSA22 2 No 88 and NFPA 496 (for hazardous locations) and third party certified to NSF/ANSI
372. Heaters are compliant with NEC/NFPA 70 and Canadian Electrical Code C22.1.
WARNING For safe operation of the heater, observe all the warning labels as indicated.
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