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UAB "VENTMATIKA"
ELECTRICAL RECTANGULAR DUCT HEATERS

ELECTRICAL RECTANGULAR DUCT HEATERS

Product catalog summary

Overview: The document provides comprehensive technical specifications and operational guidelines for Electrical Rectangular Duct Heaters (EKS), detailing various models, their features, and installation requirements.

Specifications:

Construction: EKS heaters are made from Aluzinc coated steel with stainless steel heating elements and rubber seals for duct connection.
Power and Operation: Operate on a 3-phase 400V power supply, with power ranging from 3 kW to 90 kW. They require specific air velocity and temperature conditions for optimal performance.
Standards Compliance: Conform to essential safety directives, ensuring reliable and safe operation.

Model Marking: Models are identified by duct dimensions, heating power, and optional accessories like pressure switches and air velocity sensors.

Overheating Protection: Equipped with thermostats for overheating protection, offering both automatic and manual reset options.

Installation and Electrical Connection: Must be installed by a qualified electrician, adhering to local standards and regulations. Installation can be horizontal or vertical.

Control Systems:

Integrated Controllers: Offer control types including potentiometers, remote setpoint knobs, and Modbus RTU protocol, using PID regulation for precise temperature control.
External Controllers: Require separate temperature sensors and support various voltage and load capacities.

Accessories: Include duct and room temperature sensors, and remote panels with setpoint knobs.

Operational Procedures:

Power Supply: Controllers enter a 30-second preparation mode upon activation, with LED indicators for feedback.
Failure Protocol: Power supply must be off before addressing failures.
Air Velocity Requirement: Minimum air velocity of 1.5 m/s is required for some models to activate heating.

Control Types:

EKS NV and NI Models: Use supply air temperature sensors, controlled via potentiometers or remote panels.
EKS NIS Models: Feature analog signal input and require air velocity sensors.
EKS NV/NI PTC Models: Include PTC sensors for dual-mode operation using supply and room temperature sensors.

Modbus Communication: EKS MB models support Modbus RTU communication with configurable settings.

Electrical Wiring Diagrams: Numerous figures illustrate wiring diagrams essential for installation and maintenance.

Warranty Information: Offers a 24-month warranty from the date of the manufacturer's invoice, voided by unauthorized manipulation.

Recommendations: Contact an official "Ventmatika" dealer for warranty service and avoid unauthorized handling to maintain warranty validity.

Additional Notes: "Ventmatika" reserves the right to modify the product without prior notice, indicating potential updates or changes.

Catalog excerpts

ELECTRICAL RECTANGULAR DUCT HEATERS Technical data Mounting Maintenance ELECTRICAL RECTANGULAR DUCT HEATERS

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ELECTRICAL RECTANGULAR DUCT HEATERS Table of contents Description …………………………………………………………………………………….………..………………. 2 Dimensions ……………………………………………………………………………………….………….………….. 2 Technical data …………………………………………………………………………………….……………………. 3 Model marking ……………………………………………………………………………………………………..…. 4 Overheating protection …………………………………………………………………………….…………..…. 5 Installation and electrical connection …………………………………………………….……….…..……. 6 Heaters EKS with integrated controller …………………………………………………………..………. 10 External controllers for the heaters EKS …………………………………………..…………………..…. 11 Additional accessories for...

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ELECTRICAL RECTANGULAR DUCT HEATERS Description Electrical duct heaters EKS are designed to heat fresh air in ventilation systems. Casing (EKS protection class IP 44, except EKS Type NV which protection class IP 30) is made from Aluzinc coated steel which is high temperature proof and with rubber seals for duct connection. Heating elements tube is made from stainless steel AISI 304. There are 2 protection thermostats (or more, depending on the heater power) and screw terminals for easy connection installed in the heaters. Heaters can be installed horizontally with the electrical connection box...

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ELECTRICAL RECTANGULAR DUCT HEATERS Technical data Heater type Available heating elements (kW)

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* – different power and dimensions on request Heaters conforms to requirements of standards: LST EN 60335-2-30:2003+A1:2005+A2:2007 LST EN 60335-2-30:2010+AC:2010+A11:2012 (EN 60335-2-30:2009+AC:2010+A11:2012) and therefore complies with the essential requirements and provisions of the 2006/95/EC and 2004/108/EC Directives. The CE mark is affixed. Model marking without integrated control 3 – Heating power (kW) 3 – 3 kW ... 90 – 90 kW 4 – Additional accessories: PS – Differential pres

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ELECTRICAL RECTANGULAR DUCT HEATERS with integrated controller NV – Potentiometer on the top of the heater casing for temperature control NI – External wired remote setpoint knob (TR5K) for temperature control NIS – External wired remote (0…10) VDC signal for temperature control (analog input) ESKM – External wired remote PWM (ON/OFF: ON (6…24) VDC) signal for temperature control MB – External wired remote temperature control via Modbus RTU protocol (RS485) 2 – Duct width (mm) 400 – 400 mm 500 – 500 mm 600 – 600 mm 4 – Heating power (kW) 3 – 3 kW ... 90 – 90 kW (NV, NI, NIS,MB) >15 kW with mounted...

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ELECTRICAL RECTANGULAR DUCT HEATERS Installation and electrical connection Electrical duct heaters EKS can be installed horizontally with the electrical connection box facing upwards or sideways and vertically (only if the air flow direction upwards) (see Fig. 1). Fig. 1. Heaters installation positions Heaters can’t be installed in explosive and aggressive substances environment. Heaters can be used only for the clean air heating or preheating. Heaters intended only for inside installation. If heater is installed in such way that can be accidental contact with heating elements, protective grill...

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ELECTRICAL RECTANGULAR DUCT HEATERS We recommend install supply air temperature sensor in distance multiplied by the heater’s duct height (3xH). For example: heater EKS duct height 200 mm, sensor’s installation distance will be: 3x200=600 mm.

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ELECTRICAL RECTANGULAR DUCT HEATERS Fig. 5. Mounting example EKS ESKM… Fig. 7. Mounting example EKS NI…2NTC… AHU – Air handling unit

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ELECTRICAL RECTANGULAR DUCT HEATERS Fig. 9. Mounting example EKS NI… (Preheater) AHU – Air handling unit Fig. 10. Mounting example EKS NIS… (Preheater) AHU – Air handling unit Fig. 11. Mounting example EKS ESKM… (Preh

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ELECTRICAL RECTANGULAR DUCT HEATERS Heaters EKS with integrated controller Heaters EKS with integrated temperature controller EKR-KN… (See Fig. 12) can be controlled in five different ways depending on control type: Type EKS NV – potentiometer on the top of the heater casing for temperature control Type EKS NI – external wired remote setpoint knob (TR5K) for temperature control Type EKS NIS – external wired remote 0…10V signal for temperature control Type EKS ESKM – external wired remote PWM (ON/OFF: ON(6…24)VDC) signal for temp. control Type EKS MB – external wired remote temperature control...

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ELECTRICAL RECTANGULAR DUCT HEATERS

ELECTRICAL RECTANGULAR DUCT HEATERS

Catalog excerpts

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