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© 2019 tekmar 304V_D - 10/19
Table of Contents
Important Safety Information .............................................2
Installation .........................................................................3
Preparation .................................................................... 3
Location ......................................................................... 3
Installing the Enclosure ................................................. 3
Application 304V–1 ........................................................ 4
Application 304V–2 ........................................................ 5
Application 304V–3........................................................ 6
User Interface ....................................................................7
Indicator LED ................................................................. 7
Sequence of Operation .....................................................7
Technical Data ...................................................................8
Limited Warranty and Product Return Procedure .............8
Important Safety Information
It is your responsibility to ensure that this control is safely installed according to all applicable codes and standards. tekmar is
not responsible for damages resulting from improper installation and/or maintenance.
This is a safety-alert symbol. The safety alert symbol is shown alone or used with a signal word (DANGER,
WARNING, or CAUTION), a pictorial and/or a safety message to identify hazards. When you see this symbol
alone or with a signal word on your equipment or in this manual, be alert to the potential for death or serious
personal injury.
This pictorial alerts you to electricity, electrocution, and shock hazards.
This symbol identifies hazards which, if not avoided, could result in death or serious injury.
This symbol identifies hazards which, if not avoided, could result in minor or moderate injury.
This symbol identifies practices, actions, or failure to act which could result in property damage or damage to
the equipment.
Read manual and all product labels BEFORE using the equipment. Do not use unless you know
the safe and proper operation of this equipment. Keep this manual available for easy access by all
users. Replacement manuals are available at tekmarControls.com
• It is the installer’s responsibility to ensure that this control is safely installed according to all applicable codes and
standards.
• Improper installation and operation of this control could result in damage to the equipment and possibly even personal
injury or death.
• This control is not intended for use as a primary limit control. Other controls that are intended and certified as safety limits
must be placed into the control circuit.
The control includes fuses and transformer that are serviceable. Do not attempt to service any other parts on the control.
Attempting to service the control voids the warranty.
• Strip all wiring to a length of 3/8 in. or 10 mm for all terminals.
• A circuit breaker or power disconnect that provides power to the control should be located nearby and clearly labeled.
• Refer to the current and voltage ratings at the back of this manual before connecting devices to this control.
