Neptronic Electric Heater Manuale utente
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Electric Actuators
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Actuated Valves!
HVAC Controls
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Humidifiers!
Electric Heaters!
Head Office
Neptronic®
400 Lebeau Blvd.
Montreal, Quebec, Canada H4N 1R6
Tel.: (514) 333-1433
Fax: (514) 333-3163
Toll Free: 1-800-361-2308
Singapore
Neptronic Pte Ltd
Office D6, #03-38,
Mountbatten Square
229, Mountbatten Road,
Singapore – 398 007
Mobile: +65 8118 4184
Tel: +65 6650 6212
Fax: +65 6491 6423
Middle East & Asia
NEP International FZE
P.O. Box 125687,
Dubai, UAE
Tel.: +97155 8825487
Fax: +9714 3426772
USA
NEP Inc.
P.O. Box 1151
Medford Oregon,
USA 97501
Tel.: (541) 531-5746
Wise to Read
Excerpts from the Electric Heater Installation Instructions
Following installation instructions is extremely important in order to avoid any
damage or malfunction to the electric heater. Some experts with many years of
experience in the HVAC industry may choose to ignore or neglect reading the
instructions, believing that their knowledge and experience is sufficient.
However, instructions may differ between different manufacturers. Therefore, it is
worth spending a few extra minutes to ensure proper understanding of the
product.
Here are some of the important points from Neptronic’s “Electric Heater
Installation Instructions”
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Electric Actuators
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Electric Heaters
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HVAC Controls
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Humidifiers!
Actuated Valves
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The table below shows basic information about standard open coil and tubular
electric heaters.
Prevent malfunction
The control panel is provided with knockouts to pass power lines. In case
alterations are required during installation, such as drilling more holes to the
electrical compartment, ensure proper protection of all electrical components
installed. Metal debris or chips may cause short circuit or affect operation of
electrical components. Dust or metal debris around the contactors could cause
vibration or chattering noise.
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Electric Actuators
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Electric Heaters
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HVAC Controls
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Humidifiers!
Actuated Valves
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Protect components and elements
Ensure minimum required airflow. Insufficient or uneven airflow could lead to
opening of mechanical airflow switch (PDN/PDA/EAS) and thermal cut-outs
(automatic and manual). This could damage heating elements and controls.
Direction of installation must be respected. Failure to do so will impair proper
operation of thermal cut-outs and/or cause overheating of solid state relays.
Airflow conditions to avoid
Below are some basic installation tips regarding minimum distances that must be
respected for proper functionality. It is important to have the airflow evenly
distributed over the entire coil section. Failing to do so could cause overheating
and possibly damage the elements. Please check our TechTime article from July
2015 “Does Distance Matter?”, in which this subject is discussed in detail.
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Electric Actuators
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Electric Heaters
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HVAC Controls
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Humidifiers!
Actuated Valves
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Our three types
Flanged, insert (slip-in) and round adapters.
Avoid modifying/altering duct work to install heaters. Knowing in advance the
type of installation required can save you time, money and frustration.
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Electric Actuators
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Electric Heaters
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HVAC Controls
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Humidifiers!
Actuated Valves
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Electrical Installation
Voltage and current must match details on the heater’s name plate. A wiring
diagram specifically made for each heater is provided inside the control panel
door. Connecting all wires to appropriate terminals as per the wiring diagram is
highly important. Correct connection tightening should be verified before start up
and after a short period of operation (typically after 2 weeks).
Know your diagram and components
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Electric Actuators
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Electric Heaters
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HVAC Controls
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Humidifiers!
Actuated Valves
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Electric Actuators
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Electric Heaters
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HVAC Controls
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Humidifiers!
Actuated Valves
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Maintenance
Neptronic heaters do not require specific maintenance. However, we recommend
a yearly inspection, typically before winter season or after a long term shut down.
Visually:
-Inspect heating elements to verify if they are in good condition.
-Elements and ducts around the heater should be free of dust or lint.
-Verify any indication of overheating conditions (discoloration) as well
as any trace of oxidation (rust).
Electrically:
-Verify electrical connection tightening.
-Verify that all fuses are in good condition.
-Verify resistance of each circuit against ground.
-Verify correct operation of contactor(s).
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Electric Actuators
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Electric Heaters
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HVAC Controls
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Humidifiers!
Actuated Valves
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Important
MAKE SURE TO DISCONNECT ALL SUPPLIES BEFORE WORKING ON ANY
CIRCUIT. Use appropriate wire and correct gauge as recommended. Electrical
installation should be done by a qualified electrician and should conform to local
electrical code.
Do not proceed with any modification or alteration to internal connections or
components of the electric heater. Any non-authorized modification will void the
warranty.
Installation instructions are provided with every heater. Read and save the
document as it contains very useful information.
Know what you are installing!
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