RHC GAS FIRED HEATING COILS

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1 CI/SfB X RHC GS FIRED HETING COILS

RHC GS FIRED REZNOR HETING COILS Introduction Reznor gas fired heating coils are designed for inclusion in air handling units to provide a high efficiency gas fired heating section.

2 RHC GS FIRED REZNOR HETING COILS Introduction Reznor gas fired heating coils are designed for inclusion in air handling units to provide a high efficiency gas fired heating section. They may also be used for replacing steam and hot water coils in existing units and plenum systems to enable changeover from central boiler plant to decentralised gas fired systems. The units also provide an ideal heating module for installation in ductwork systems for HVC installations and a variety of industrial applications including drying and curing. Features High efficiency units qualify for enhanced capital allowances pplication flexibility all units can accommodate both vertical and horizontal airflows Choice of controls close temperature control on/off, high/low or modulating Longer life heat exchanger tubes are expanded into a collection box, eliminating welds. They are available with a choice of stainless steel or aluminised steel tubes Low cost simple installation reduces costs Optimum choice 6 different tube lengths offer the designer a wide choice to suit the air handling unit profile Model Range comprehensive range of units with heat outputs from 11kW to 900kW and a wide choice of dimensions offer the designer maximum flexibility. Where higher heat outputs are required modules can be placed side by side with right hand and left hand access to satisfy heat requirements up to 1800kW. The units are available for either indoor applications (DJL option) or outdoor applications (RJL option). RHC 4000 Four pass heat exchanger Minimum 91% high thermal efficiency Heat outputs from 11kW to 200kW per module Modular monobloc units up to 400kW RHC 8000 Two pass heat exchanger Minimum 91% high thermal efficiency Heat outputs from 30kW to 300kW per module Modular monobloc units up to 900kW Optional air diffuser for low airflow applications Special combinations up to 2400kW are also available. Please consult Reznor

Energy Efficiency The gas fired heating coils provide 91% minimum thermal efficiencies directly at the point of use thereby eliminating the distribution and standby losses normally associated with

Optimised energy usage and reduced running costs result from: High turn down ratio Instant response to changing conditions Reduced pre-heat period Elimination of residual thermal mass on plant shut

The RJL coils are provided complete with a matched flue terminal and air inlet which have been tested and CE certified against the effect of wind attack.

Reduced Installation Costs The application of gas fired heating coils directly at the point of use eliminates the need for a central boiler plant with all the associated costs and space requirements

3 Energy Efficiency The gas fired heating coils provide 91% minimum thermal efficiencies directly at the point of use thereby eliminating the distribution and standby losses normally associated with central boiler plant. Optimised energy usage and reduced running costs result from: High turn down ratio Instant response to changing conditions Reduced pre-heat period Elimination of residual thermal mass on plant shut down CE Certification ll heating coils are fully CE certified and are supplied with comprehensive fitting instructions. The RJL coils are provided complete with a matched flue terminal and air inlet which have been tested and CE certified against the effect of wind attack. Each unit is fully test-fired prior to despatch; optional on-site commissioning and full after sales service is available through a nationwide network of in-house service engineers. Reduced Installation Costs The application of gas fired heating coils directly at the point of use eliminates the need for a central boiler plant with all the associated costs and space requirements for the plant room, boiler, pumps, pipework and insulation. Gas fired heating coils also remove the risk of freezing and subsequent costs of frost protection for the heating coils and pipework, a factor which is particularly relevant for external or rooftop units. Simple Installation The heating coils are designed for fast and simple installation and only require coil slides for incorporation within an ir Handling Unit. The coils are designed to allow the specifier a choice of cross section dimensions for each heat output to allow close matching to cooling coil sizes and the aspect ratio of the HU. For reduced pressure drop and optimised specific fan power, an integral bypass can be incorporated within the coil framework. factory fitting service is also available to install the heating coils into free issue sections. lternatively the coils can be supplied as a complete heater section for fitting into ductwork systems or industrial process applications. irflow Direction The heating coils may be used in either a horizontal or vertical configuration and are suitable for various airflow directions. Enhanced Capital llowances (EC) The Government s Enhanced Capital llowance scheme actively encourages industry and commerce to reduce energy consumption by promoting the use of energy efficient equipment. The RHC coils are Energy Technology Listed to allow qualifying end users to claim enhanced capital allowances. This symbol verifies that the product has been independently assessed and qualifies for the EC scheme, an upfront tax relief enabling businesses that invest in energy-saving equipment to claim 100% first-year capital allowances against their taxable profits.

RHC GS FIRED REZNOR HETING COILS The dvantages of Gas Fired Heating Coils RHC Gas Fired Heating Coils Single coils provide a turndown ratio of approx 4:1 whilst modular monobloc units with higher

4 RHC GS FIRED REZNOR HETING COILS The dvantages of Gas Fired Heating Coils RHC Gas Fired Heating Coils Single coils provide a turndown ratio of approx 4:1 whilst modular monobloc units with higher heat outputs can provide a turndown ratio of up to 24:1. Multi-try ignition system with full safety sequence control provides additional reliability. Monobloc modular format eliminates the possibility of total loss of heating as a result of a single component failure. Comprehensive choice of coil dimensions allows units to be closely matched to the HU size, to maintain uniform air flow with reduced pressure loss. Modular format ensures close matching to heat demand for optimum energy efficiency. RHC coils for external units are supplied complete with CE certified combustion air inlets and flue terminals. Fan assisted flue allows for smaller flue diameters with option for balanced flue wall terminals. Utilising the full height of the HU allows the design of the heating coil to be very compact and can significantly reduce the length of the HU to save cost, space and weight. Lower operating temperature and even heat distribution provide enhanced life expectancy. The heating coils provide very even heating across the face of the coil and operate at a maximum surface temperature of 450 C. The lower surface temperature reduces radiant heat to the structure of the HU and surrounding components. Radiation shields fitted around the coils eliminate the need for additional shields and optimise heat transfer into the air-stream. Traditional Gas Fired Heat Exchangers Fixed dimensions of traditional heat exchangers result in transformation sections often being required, with resultant increased pressure drop. Lower thermal efficiency, circa 82% on traditional gas fired heat exchangers. Higher operating temperatures, typically up to 650 C, results in increased thermal stress and heat radiation to HU frame and components. Increased length adds to cost and weight of unit while also increasing space requirements. Total loss of heating capacity in the event of a single component failure on main burner.

Monobloc Units Up to three modules can be supplied assembled as a single monobloc to provide heat outputs up to 900kW.

The monobloc units combine high thermal efficiency with an excellent turndown ratio of up to 24:1, depending on the output and control system selected, to optimise energy usage.

Where higher airflows are required a top or side bypass can be incorporated to minimise the pressure drop through the heating coil.

5 Monobloc Units Up to three modules can be supplied assembled as a single monobloc to provide heat outputs up to 900kW. Monobloc modules may be installed side by side to increase heat outputs up to 1800kW. Special combinations up to 2400kW are also available, please consult Reznor. The monobloc units combine high thermal efficiency with an excellent turndown ratio of up to 24:1, depending on the output and control system selected, to optimise energy usage. The modular approach provides improved reliability, allowing large heat output units to be utilised without the risk of loss of total heating on failure of a single component. Where higher airflows are required a top or side bypass can be incorporated to minimise the pressure drop through the heating coil. Monobloc Triple Unit Monobloc Twin Unit Optional Control Vestibules Units are also available with an enclosed control vestibule. The flanged vestibule allows the width of the ir Handling Unit to be minimised with the control vestibule projecting outside. The vestibules may be specified for either internal or outdoor units. Outdoor vestibules are supplied complete with flue termination and combustion air inlet. Vestibules have a durable powder coat finish to RL 7035, other colours are available on request. Higher airflow units may be fitted with a side bypass to minimise the pressure drop through the heating coil. Top bypass arrangement is not available for units fitted with a vestibule. Units supplied complete with controls vestibule are also ideal for applications where the heat module is to be installed into ductwork. RJL Model External pplication DJL Model Internal pplication

RHC 4000 GS FIRED REZNOR HETING COILS C B 380 DIMENSION DT Model 4011.03 4015.04 4018.05 4024.05 4030.06 4036.

6 RHC 4000 GS FIRED REZNOR HETING COILS C B 380 DIMENSION DT Model Height mm Width B mm Depth C mm TECHNICL DT Model Nominal heat output kw Natural gas consumption 1 m 3 /h LPG consumption 1 kg/h Gas connection 2 Rc ¾ ¾ ¾ ¾ ¾ ¾ Flue diameter (RJL) mm Flue / combustion air diameter (DJL) mm Electrical consumption (230V 1Ph 50 Hz) kw Net weight kg Minimum airflow 3 (standard unit) m 3 /h Pressure minimum airflow Pa Maximum airflow 3 m 3 /h Note: 1. Natural gas G20 calorific value 10.48kW/m 3 GCV. Propane G31 calorific value 14.0kW/kg GCV. 2. Not supply line size. 3. Please consult Reznor for pressure drop data where more than one module is used in series.

C B D DIMENSION DT Model 4050.06 4060.07 4075.09 4100.12 4110.13 4125.15 4150.18 4175.21 4200.

7 C B D DIMENSION DT Model Height mm Width B mm Depth C mm Control compartment D mm TECHNICL DT Single Module Nominal heat output kw Natural gas consumption 1 m 3 /h LPG consumption 1 kg/h Gas connection 2 Rc ¾ ¾ ¾ ¾ 1¼ 1¼ 1¼ 1¼ 1¼ Flue diameter (RJL) mm Flue / combustion air diameter (DJL) mm Electrical consumption (230V 1Ph 50 Hz) kw Net weight kg Minimum airflow (standard unit) m 3 /h Pressure minimum airflow Pa Twin Module Nominal heat output kw Minimum airflow (standard unit) m 3 /h Pressure minimum airflow Pa Note: 1. Natural gas G20 calorific value 10.48kW/m 3 GCV. Propane G31 calorific value 14.0kW/kg GCV. 2. Not supply line size. Table for twin modules shows total heat output and airflow data. For gas consumption and flue connections please multiply single module data as appropriate.

RHC 8000 GS FIRED REZNOR HETING COILS 400 1244 400 DIMENSION DT Model 8030.06 8045.09 8060.12 8075.15 8090.18 Height mm 531 741 950 1160 1369 TECHNICL DT Single Module 8030.06 8045.09 8060.12 8075.15 8090.18 Nominal heat output kw 30 45 60 75 90 Natural gas consumption 1 m 3 /h 3.

8 RHC 8000 GS FIRED REZNOR HETING COILS DIMENSION DT Model Height mm TECHNICL DT Single Module Nominal heat output kw Natural gas consumption 1 m 3 /h LPG consumption 1 kg/h Gas connection 2 Rc ¾ ¾ ¾ ¾ ¾ Flue diameter (RJL) mm Flue / combustion air diameter (DJL) mm Electrical consumption (230V 1Ph 50 Hz) kw Net weight kg Minimum airflow (standard unit) m 3 /h Pressure minimum airflow Pa Maximum airflow with optional diffuser plate m 3 /h Pressure drop with diffuser plate Pa Twin Module Nominal heat output kw Minimum airflow (standard unit) m 3 /h Pressure minimum airflow Pa Maximum airflow with optional diffuser plate m 3 /h Pressure drop with diffuser plate Pa Triple Module Nominal heat output kw Minimum airflow (standard unit) m 3 /h Pressure minimum airflow Pa Note: 1. Natural gas G20 calorific value 10.48kW/m 3 GCV. Propane G31 calorific value 14.0kW/kg GCV. 2. Not supply line size. Table for twin and triple modules shows total heat output and airflow data. For gas consumption and flue connections please multiply single module data as appropriate.

9 C 1844 D DIMENSION DT Model Height mm Depth C mm Control compartment D mm TECHNICL DT Single Module Nominal heat output kw Natural gas consumption 1 m 3 /h LPG consumption 1 kg/h Gas connection 2 Rc ¾ ¾ ¾ 1¼ 1¼ 1¼ 1¼ Flue diameter (RJL) mm Flue / combustion air diameter (DJL) mm Electrical consumption (230V 1Ph 50 Hz) kw Net weight kg Minimum airflow (standard unit) m 3 /h Pressure minimum airflow Pa Maximum airflow with optional diffuser plate m 3 /h Pressure drop with diffuser plate Pa Twin Module Nominal heat output kw Minimum airflow (standard unit) m 3 /h Pressure minimum airflow Pa Maximum airflow with optional diffuser plate m 3 /h Pressure drop with diffuser plate Pa Triple Module Nominal heat output kw Minimum airflow (standard unit) m 3 /h Pressure minimum airflow Pa Note: 1. Natural gas G20 calorific value 10.48kW/m 3 GCV. Propane G31 calorific value 14.0kW/kg GCV. 2. Not supply line size. Table for twin and triple modules shows total heat output and airflow data. For gas consumption and flue connections please multiply single module data as appropriate.

RHC 8000 GS FIRED REZNOR HETING COILS 600 2435 550 DIMENSION DT Model 8225.18 8250.20 8275.22 8300.24 Height mm 1912 2078 2244 2410 TECHNICL DT Single Module 8225.18 8250.20 8275.22 8300.24 Nominal heat output kw 225 250 275 300 Natural gas consumption 1 m 3 /h 25.

10 RHC 8000 GS FIRED REZNOR HETING COILS DIMENSION DT Model Height mm TECHNICL DT Single Module Nominal heat output kw Natural gas consumption 1 m 3 /h LPG consumption 1 kg/h Gas connection 2 Rc 1¼ 1¼ 1¼ 1¼ Flue diameter (RJL) mm Flue / combustion air diameter (DJL) 3 mm Electrical consumption (230V 1Ph 50 Hz) kw Net weight kg Minimum airflow (standard unit) m 3 /h Pressure minimum airflow Pa Maximum airflow with optional diffuser plate m 3 /h Pressure drop with diffuser plate Pa Twin Module Nominal heat output kw Minimum airflow (standard unit) m 3 /h Pressure minimum airflow Pa Maximum airflow with optional diffuser plate m 3 /h Pressure drop with diffuser plate Pa Triple Module Nominal heat output kw Minimum airflow (standard unit) m 3 /h Pressure minimum airflow Pa Note: 1. Natural gas G20 calorific value 10.48kW/m 3 GCV. Propane G31 calorific value 14.0kW/kg GCV. 2. Not supply line size. 3. For 150mm diameter flue, consult Reznor. Table for twin and triple modules shows total heat output and airflow data. For gas consumption and flue connections please multiply single module data as appropriate.

11 Balanced Flue Terminals C E E G D F C D B F G B FLUE DIMENSIONS Model Vertical Roof Terminal Horizontal Wall Terminal 80mm 100mm 130mm 80mm 100mm 130mm mm B mm C mm D mm E mm F mm G mm Maximum wall thickness mm n/a n/a n/a Note: For 150mm diameter flue, consult Reznor ( DJC models only) Typical Flue rrangements RJL modules for installation in external or rooftop units are CE certified complete with combustion air inlet hoods and flue terminals (supplied loose). For installation in naturally ventilated plant rooms DJL modules may be conventionally flued. Where plant rooms are sealed or subject to negative pressure, a range of matching balanced flue terminals and sealed pipework is available.

Heat Recovery wide range of heat recovery heat exchangers and thermal wheels for incorporating within air handling units and other air systems is also available from Reznor UK.

Cross plate heat exchangers provide complete separation between the exhaust and fresh air streams.

The counterflow heat exchangers offer very high efficiency heat recovery in excess of 80% for typical HVC applications and offer a viable alternative to rotary heat exchangers for lower airflow

They are a well proven means of energy recovery, normally recovering up to 80% in typical HVC applications.

12 Heat Recovery wide range of heat recovery heat exchangers and thermal wheels for incorporating within air handling units and other air systems is also available from Reznor UK. Cross Plate Heat Exchangers new generation of recuperative plate heat exchanger, designed for incorporation into air handling units or as part of an air distribution system. Cross plate heat exchangers provide complete separation between the exhaust and fresh air streams. Counterflow Heat Exchangers new generation of high efficiency plate heat exchangers with extended heat exchange area. The counterflow heat exchangers offer very high efficiency heat recovery in excess of 80% for typical HVC applications and offer a viable alternative to rotary heat exchangers for lower airflow applications. Rotary Heat Exchangers The highest form of thermal energy recovery in air handling systems, rotary heat exchangers deliver high efficiencies with high air volumes in limited space. They are a well proven means of energy recovery, normally recovering up to 80% in typical HVC applications. Desiccant Enthalpy Dehumidification Rotors The desiccant rotor is a further development of the traditional energy recovery rotor. The matrix has a very high capacity for moisture absorption. It absorbs moisture from the air which flows through the matrix and transfers the moisture as the wheel rotates. The desiccant rotor is ideal for total energy recovery and dehumidification with or without additional regeneration air heating. Document reference number: GB/WR/011/1208 Reznor UK Limited Park Farm Road Folkestone Kent CT19 5DR United Kingdom Telephone: Facsimile: marketing@reznor.co.uk Website: Reznor UK is a registered trademark of mbirad Limited. Because of continuous product innovation, mbirad reserves the right to change product specification without due notice.

RHC & RHCE gas fired heating coils

APPLICATIONS Heating in duct networks or air handling units >> FACTORIES >> WAREHOUSES >> HALLS RHC & RHCE gas fired heating coils www.reznor.eu RHC gas fired heating coils Reznor gas fired heating coils