SECTION 10: WIRING AND ELECTRICAL INFORMATION

SECTION 10: WIRING AND ELECTRICAL INFORMATION

DANGER

Electrical Shock Hazard

Disconnect electric before service.

Heater must be properly grounded.

Failure to follow these instructions can result in death or electrical shock.

10.1 Electrical Supply

All heaters need a constant 230 V 50 Hz single phase supply connected to terminals L, N & Earth. Polarity "L & N" must be correct. The voltage between neutral and earth should be 0 and never exceed 15 volts.

All heaters and controls must be correctly earthed. All external wiring must comply with the relevant local codes. Wire specification H05VV-F.

External controls must have the same constant 230 V 50 Hz supply.

An isolator with a contact separation of at least

3 mm on all poles must be installed adjacent to, but not attached to, the heater to disconnect all supplies to the heater and any remote control. This switch should be fused to 5 A.

The final connection to the heater should be made by flexible cable or conduit to the 7 pole plug on the inside of the heater using 1 mm2 cable on all models.

10.2 Remote Controls

The heater is designed to be operated by controls installed remote from the heater. See Page 20, Section 10.3.

10.2.1 Burner Controls (Thermostat)

Controls to operate the burner must be connected between L1 and T2.

10.2.2Positioning Room Thermostats or ROBERTS GORDON® Control

10.2.3 Remote Frost Thermostat

When required, connect to L1 and T2 parallel to the room thermostat.

Locate within the heated space adjacent to the most vulnerable equipment that requires protection.

See Page 20, Section 10.3.

10.2.4 Remote Fan Controls

The fan will operate automatically providing there is a constant 230 V supply to the main terminals.

A switch or control wired between terminals Y & T1 in the terminal block will allow external control of the fan(s).

The fan may be controlled to operate continuously from an external control, with the burner cycling on and off, providing that the fan run-on at close down is not impaired.

A room thermostat or ROBERTS GORDON® control should be mounted on a wall or column at a height of approximately 1.5 metres from the floor to measure the ambient temperature. It should be clear of both cold draughts and the direct path of warm air from the heater.

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Roberts Gorden CTCU 15 Wiring and Electrical Information, Remote Controls, Burner Controls Thermostat, Remote Fan Controls
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CTCU 32, CTCU 7, CTCU 22, CTCU 11, CTCU 15 specifications

Roberts Gorden offers a diverse range of high-performance make-up air units known as the CTCU series, which includes models CTCU 22, CTCU 15, CTCU 7, CTCU 27, and CTCU 11. Each model is designed to deliver efficient and reliable air management solutions for various industrial and commercial applications.

The CTCU 22 is renowned for its robust construction and powerful performance, providing exceptional air flow rates that can accommodate larger facilities. It features a high-efficiency heat exchanger and a multi-stage filtration system that ensures optimal indoor air quality while reducing energy consumption. This model is particularly beneficial for environments requiring high volumes of tempered air, making it ideal for manufacturing plants and warehouses.

CTCU 15, on the other hand, is slightly smaller yet offers remarkable versatility. With an integrated control system, it can easily adapt to changing operational demands, making it a preferred choice for businesses that experience variable occupancy levels. Its quiet operation minimizes workplace noise, and its energy-efficient design significantly cuts operational costs.

CTCU 7 is specifically engineered for smaller spaces without compromising performance. This unit features compact dimensions while still delivering adequate air flow for localized heating and ventilation needs. The advanced temperature control algorithms allow for precise adjustments, ensuring a comfortable environment even in tight areas.

CTCU 27 stands out with its advanced technology that includes integrated smart controls. This model offers real-time monitoring and data analytics to optimize performance and enhance energy efficiency. Its ability to connect with existing building management systems makes it an appealing choice for modern facilities aiming to improve sustainability initiatives.

The CTCU 11 is characterized by its user-friendly interface and maintenance accessibility. It is built with durable materials that extend its lifespan, ensuring long-term reliability. This unit is ideal for applications where regular maintenance is challenging, as its design allows for easy access to all critical components.

In summary, Roberts Gorden's CTCU series encompasses a range of units catered to various industrial needs. With features focusing on efficiency, flexibility, and user-friendliness, these models deliver high-quality air management solutions to improve indoor environments while reducing energy consumption.
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