Roberts Gorden CTH2-125, CTH2-80, CTH2-100, CTH2-150, CTH2-175 Line Voltage Thermostat Wiring

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CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL

SECTION 10: WIRING

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.

Heaters can be controlled using several methods. Normally thermostats are used to control the heaters but they can also be controlled by an Energy

Management System. Section 10.1 below illustrates the connection for heaters controlled by a line voltage thermostat. NOTE: In order to use line voltage ther- mostats, the low voltage terminal located at the back of each burner must be connected as shown in the detail. For a single heater on a low voltage thermo- stat, See Section 10.2 below. To control multiple heaters on one low voltage thermostat, See Page 43, Section 10.3. NOTE: In order to control multiple heat- ers on one low voltage thermostat, the low voltage terminals on each heater must be connected as shown in detail. Heater must be grounded in accor- dance with applicable codes: United States: refer to National Electrical Code® NFPA 70 - latest revision Canada: refer to Canadian Electrical Code, CSA C22.1 Part I - latest revision.If any of the original internal wiring must be replaced, it must be replaced with wiring materials having a temperature rating of at least 105° C and 600 V.

10.1 Line Voltage Thermostat Wiring

 

Line Voltage

 

 

 

 

 

Thermostat

 

 

 

 

120 V-60 Hz

T

Gnd.

 

Gnd.

 

Supply Circuit

 

 

 

 

 

L1

H

N

H

N

Low Voltage

 

 

 

 

L2

 

 

 

 

Terminal Detail

 

 

 

 

On All Burners

Gnd.

 

 

 

 

 

 

 

 

 

10.2 Low Voltage Thermostat with One Burner

120 V-60 Hz

Supply Circuit

L1

L2

Gnd.

H

N

T

 

Gnd. Low Voltage

Thermostat

Low Voltage

Terminal Detail

42

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Contents Vantage Page Roberts-Gordon LLC Page Table of Figures Page Heater Safety Manpower RequirementsSafety Labels and Their Placement California PropositionTop and Bottom Panel Label Placement Side and Back Panel Label Placement Installer Responsibility Wall TagCorrosive Chemicals National Standards and Applicable CodesStandard Reflector Inches Centimeters ModelONE Side Reflector Inches C D UnapprovedFoot Deco Grille and Protective Grille National Standards and Applicable Codes Major Components Standard Parts List Contents of the Burner Carton Contents of Core and Extension Packages30’ 9m Heater Installation Typical Suspension Details Linear Heater Assembly Overview Linear Heater Layout Overview Linear Heater Layout Overview Burner Tube Installation Tube Clamp Package InstallationCoupling and Tube Assembly 1 Coupling and Tube Assembly2 Coupling and Tube Assembly Turbulator InstallationReflector Installation By a reflector, except for a U-Tube1 Reflector, U-Clip and Reflector Support Installation Description Part Number Reflector Support PackageBurner Installation Window facing downOptional Heater Accessories Tube ConfigurationTube Heater Assembly Overview Tube Heater Layout Overview Tube Length Elbow Package Configuration .2.1 Elbow Installation 2 Elbow Installation3 Reflector Joint Installation 4 Reflector Joint Installation 5 Reflector Joint Detail Reflector Joint DetailReflector Side Extension .3.1 Bracket Installation 2 Side Reflector InstallationScr ews 2 Frame Shield Installation Distance a Extension2 Grille End Cap Installation 3 Grille InstallationGeneral Venting Requirements United States RequirementsCanadian Requirements Unvented OperationHorizontal Venting Vertical VentingUnvented Operation Tube Termination Length RequirementsVertical Ventilation 4 10 cm Pipe Common Sidewall VentingCommon Vertical Venting Vertical Outside Air Supply for Single Heater Installation Outside Combustion Air SupplyVertical Outside Air Supply for Double Heater Installation Horizontal Outside Air Supply for Double Heater InstallationGAS Piping Correct Positions Wiring Line Voltage Thermostat WiringLow Voltage Thermostat with One Burner Low Voltage Thermostat Wiring with Multiple Burners Internal WiringLadder Diagram Electrical Connection to the BurnerOperation and Maintenance Pre-Season Maintenance and Annual InspectionSequence of Operation To Shut Off HeaterVicinity of the Heater Vehicles and OtherObjects Vent PipeSafety Labels Gas LineBurner Observation WindowTroubleshooting Honeywell SmartValve II Troubleshooting LED Status IndicatesTroubleshooting Flow Chart Troubleshooting Manifold Gas Pressure Setting Top View of HeaterReplacement Parts Motor and Blower Assembly Blower Inlet Gasket Door Switch Description Part Number General Specifications DimensionsGAS Pressure AT Manifold Pipe ConnectionLimitations on Authority Representatives Warranty is Void if ROBERTS-GORDON will not PAY forPage Page Page
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CTH2-40 CTH2-60, CTH2-175, CTH2-150, CTH2-100, CTH2-80 specifications

Roberts Gorden is a reputable name in the field of heating and energy efficiency, and its CTH2 series of infrared radiant heaters—including the CTH2-150, CTH2-80, CTH2-125, CTH2-100, and CTH2-175—are a testament to innovation and quality. Designed for commercial and industrial spaces, these heaters provide effective and efficient heating solutions tailored to various needs.

The CTH2 series employs advanced infrared heating technology, which radiates warmth directly to objects and individuals in the space rather than heating the air. This method ensures rapid heat-up times and energy conservation, making the heaters ideal for workshops, warehouses, and other large areas where traditional heating systems may be inefficient.

One of the main features of the CTH2 series is its high thermal efficiency. The heaters convert a significant portion of the energy consumed into usable heat, resulting in lower operational costs and a reduced carbon footprint. The CTH2 models utilize durable components designed to withstand the rigors of industrial environments, ensuring longevity and reliable performance.

The CTH2-150, CTH2-80, CTH2-125, CTH2-100, and CTH2-175 models vary in output capacity and design, providing flexibility for different heating requirements. The maximum heat output ranges significantly among the models, with the CTH2-175 offering the highest thermal output, making it suitable for larger spaces or areas requiring immediate and intense heating. Conversely, the CTH2-80 is ideal for smaller areas or those that require less heat.

Installation versatility is another key characteristic of the CTH2 series. These heaters can be mounted from the ceiling or installed horizontally or vertically, accommodating different building layouts and operational needs. The heaters are also designed for easy maintenance, featuring accessible components to facilitate routine checks and repairs.

The CTH2 series incorporates safety features such as overheat protection and flame safeguard systems, ensuring safe operation even in busy industrial settings. Additionally, their sleek and modern design allows them to integrate seamlessly with existing infrastructure without detracting from the overall aesthetic of the space.

In conclusion, Roberts Gorden’s CTH2 series—including the CTH2-150, CTH2-80, CTH2-125, CTH2-100, and CTH2-175—represents a pinnacle of infrared heating technology. With their impressive efficiency, customizable output, versatile installation options, and robust safety features, these heaters are a reliable choice for any commercial or industrial heating requirement.