Servicing Instructions | Roberts Gorden CTCU 22, CTCU 27, CTCU 7

SECTION 13: SERVICING

DANGER		WARNING
Electrical Shock Hazard	Explosion Hazard	Burn Hazard	Cut/Pinch Hazard
Disconnect electric	Turn off gas supply to	Allow heater to cool	Wear protective gear
Disconnect electric	heater before service.	before service.	during installation,
before service.	heater before service.	before service.	during installation,
before service.			operation and service.
		Tubing may still be hot	operation and service.
More than one		Tubing may still be hot	Edges are sharp.
disconnect switch may		after operation.	Edges are sharp.
be required to
disconnect electric from
heater.
Heater must be
connected to a properly
grounded electrical
source.

Failure to follow these instructions can result in death, electric shock, injury or property damage.

13.1 Servicing Instructions

After commissioning, the heater will require maintenance to be carried out annually. If the heater is used in a dirty or dusty area, more frequent maintenance may be necessary.

Installation, service and annual inspection of heater must be done by a contractor qualified

in the installation and service of gas-fired heating equipment.

using the troubleshooting charts on Page 31, Section 15 through Page 35, Section 15.5.

NOTE 2: Check all gas pipes and pipe joints to ensure there are no cracks or gas leaks. Any cracks in the pipes or pipe joints must be repaired.

NOTE 3: Inspect all suspended components and hardware. Insure that they are in good condition, properly tightened, and corrosion free.

WARNING

Severe Injury Hazard

Turn off gas and electrical supply before service.

Fan can start automatically at any time.

Failure to follow these instructions can result in severe injury or product damage.

NOTE 1: After any maintenance or repair work always test fire the heater in accordance with the commissioning instructions on Page 21, Section 11 through Page 24, Section 11.9 to ensure all safety systems are in working order before leaving the heater to operate. Minor faults may be traced by

13.2 Burner Maintenance

1.Open the hinged door and remove the burner compartment cover. See Page 37, Section 16.2.

2.Clean any deposits from the main burner which may have formed in the injectors or venturi of the burner. See Page 37, Section 16.2.

3.Remove the ignition electrode and flame probe. Check condition of ignition electrode and flame probe. Clean off any deposits which may have been formed, check condition of ceramic insulators. Replace as necessary.

13.3 Fan/Motor Assembly Maintenance

The main fan bearings are permanently sealed and do not need lubrication. Before cleaning, turn off gas and electrical supply. Remove the fan(s) and use a small brush or duster to clean the fan blades from each side. Replace fan(s) when done.

13.4 Heat Exchanger Maintenance

The heat exchanger will remain clean unless a problem has developed with combustion. Inspect the

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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.