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Reznor RHC 4000 RJL Series Application Instructions
Reznor RHC 4000 RJL Series Application Instructions

Reznor RHC 4000 RJL Series Application Instructions

Jacket-less, gas fired, balanced flue, power vented, air heater

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Jacket-less, Gas fired, Balanced flue, Power vented, Air heater
This document applies when installing into an air handler or as part of
These appliances meet the following EC Directives
Please read this document carefully prior to commencing building into an air
0603RHC4-JLGBEN
®
Application instructions
RHC 4000(M) RJL
RHC 4000(M) DJL
an air handling system
Dir. CE/90/396/EEC:GAD
Dir. CE/89/336/EEC:EMC
Dir. CE/73/23/EEC:LVD
Dir. CE/89/392 EEC:MD (annex ll, sub B)
Reznor U.K. Limited. – Park Farm Road – Folkestone – Kent - tel 01303-259141 – fax 01303-850002
handler
0603RHC4-JLGBEN
Subject to modifications
1/21

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Summary of Contents for Reznor RHC 4000 RJL Series

  • Page 1 Dir. CE/89/392 EEC:MD (annex ll, sub B) Please read this document carefully prior to commencing building into an air handler Subject to modifications Reznor U.K. Limited. – Park Farm Road – Folkestone – Kent - tel 01303-259141 – fax 01303-850002 0603RHC4-JLGBEN 1/21...
  • Page 2 EC Declaration of incorporation (Directive 89/392/EEC (annex ll, Sub B) PROHIBITION TO PUT INTO SERVICE Reznor Europe N.V. J & M Sabbestraat 130 B 8930 Menen Belgium Herewith declares that: Power vented gas fired heating battery : RHC 4000 series RJL...
  • Page 3: Basic Information

    INDEX: ECLARATION STATEMENT EFINITIONS ASIC INFORMATION RACTICAL APPLICATION IMITATIONS FOR USE & URNER CONTROLS SECTION AS CONNECTION LECTRICAL EQUIPMENT 4000(M) OMBUSTION CIRCUIT RHC 4000(M) OMBUSTION CIRCUIT RHC 10.0 RESSURE DROP INFORMATION 11.0 EATING SECTION WITH BY PASS CHANNELS 12.0 NSTALLATION OF RHC UNITS IN SERIES 13.0 NSTALLATION OF AIR FAN IN RESPECT OF THE HEATING COIL 14.0...
  • Page 4 Dimensions RHC 4000 RJL/DJL RHC 4000(M) RJL/DJL Figure 1 : Side view 1.Gas connection ¾” 2.Flue outlet 3.Electrical connection Figure 2 : Top view Figure 3 : Front view DJL/RJL TYPE 4050 06 4060 07 4075 09 4100 12 4110M.13 1132 4125M.15 1272...
  • Page 5: Practical Application

    2.8 Weights Weights (kg) 4050 06 4060 07 4075 09 4100 12 4110M.13 4125M.15 4150M.18 4175M.21 4200M.24 unit packaging total Figure 5 : Installation possibilities for RHC 4000 air heater PRACTICAL APPLICATION modules Heat exchanger compartment size.The duct section or air handler compartment must be sized in accordance with the dimensions given in table 1 with reference to figure 4.
  • Page 6 Table 2 : Airflow duty Heat output Heat output Heat output Minimum 100% 100% MODEL modulating 1 stage (H1) 1 stage (H2) 2 stage output m³/h m³/h 50.00 50.80 4050 06 3900 5950 24.00 24.00 60.00 61.20 4060 07 4700 7150 28.90 28.90...
  • Page 7 5.1.1 An enclosure containing RHC 4000 (M) WARNING : heating modules shall be so constructed that it • Use of RHC 4000 (M) heating modules for is fully protected against the rigours of the purposes other than those described above could environment in which it is intended to operate.
  • Page 8: Gas Connection

    7.1.4 protection jacketless appliances GAS CONNECTION conforms to protection code IP 20. The Rc ¾ Rc 1 ¼ M units constructor must ensure that protection accordingly to at least IP 45 is fulfilled and mark his data/rating plate accordingly. 6.1.1 National requirements and regulations for the Note: IP 45 provides:...
  • Page 9 The 90° elbow, sealing ring, terminal and the Ensure the combustion inlet grill at the control door combustion air inlet protection grill must be installed panel is completely sealed to prevent ingress of according to figure 7. water. All sealings must be correctly placed in the tubes to It is forbidden to use the combustion inlet grill as avoid flowing back of combustion products to the passage for cables or gas supplies.
  • Page 10 Figure 9: Controls compartment (side) panel for RHC 4000(M) RJL units Hole (dia 112mm or 142mm required to receive seal ring (PN 06 22786 104 or 06 22786 134) Type A (mm) B (mm) Opening RHC 4000 required to RHC 4110M.13 Hole (dia 50mm or 67mm) RHC 4125M.15 combustion...
  • Page 11 As shown in figure 11a the sealing rings must be 9.1.8 A gas service inlet (PVC) sealing ring is also fitted in the outer casing to properly seal around provided for the appliance for size Rc ¾ or Rc 1 the combustion air inlet pipe and the flue outlet ¼...
  • Page 12 Figure 10: Arrangement for class B22 appliance Figure 11a : Combustion air inlet – outlet dimension requirements Eventually flue restrictor ring in outlet collar venter housing Combustion air inlet pipe (*) Flue outlet pipe (*) Teflon sealing ring 90° bend Gas passage grommet vinly Rc ¾”...
  • Page 13 10.0 PRESSURE LOSS THROUGH HEATING MODULE 10.1 The chart below indicates the pressure drop 10.2 The temperature rise (△T) shown is for 100% over the heating module versus the air flow heat output. volume through the heat exchanger enclosure (see fig. 4 and table 1). Figure 12a : Pressure losses through a RHC 4000 heating module RHC4100-12...
  • Page 14 Figure 12c : pressure losses through a RHC 4000 heating module RHC 4150M RHC 4175M RHC 4200M 10000 15000 20000 25000 30000 35000 40000 45000 50000 55000 60000 airflow (m³/h) ∆T RHC 4150M ∆T RHC 4175M ∆T RHC 4200M 11.0 HEATING SECTION WITH BY-PASS CHANNEL Table 6 11.1 By-pass requirements...
  • Page 15 11.2 Calculation of recommended maximum by- The by-pass can either be mounted on top of the pass heat exchanger or besides the heat exchanger as shown in figure 13. The calculation can be made for all airflows above V1, the minimum airflow. The recommended maximum by-pass dimensions for a given air flow (Vtot) can be calculated as When the high heat output H2 is required, then...
  • Page 16 Example 3 : RHC 4075 09 RJL heat exchanger enclosure with : consequently in a higher total pressure total air flow = 1. 94 m³/s = 7000 m³/h drop by-pass besides heat exchanger calculation for heat output H1 To calculate this air flow through the heat exchanger enclosure, following interpolation rule should be applied : Result :...
  • Page 17 Consequently, 2. 06 m³/s (7413 m³/h) flows through the 12.0 Installation of RHC heat exchanger enclosure and the remaining 1. 55 m³/s units in series (=5587m³/h) (= 3. 61 m³/s – 2. 06 m³/s) flows through the by-pass channel. 12.1 General From section 4.1.2 the maximum allowable airflow through the heating module enclosure is 23979 m³/h...
  • Page 18 Pressure drop for 2 units in series Figure 14a Pressure losses through 2 RHC4000 heating modules in series 2x RHC4100-12 2x RHC4075-09 2x RHC4060-07 2x RHC4050-06 5950 m³/h 7150 m³/h 11700 m³/h 8800 m³/h 5000 7500 10000 12500 15000 17500 20000 22500 25000...
  • Page 19 12.4 Multiple heating sections in series with by- 12.4.3 Calculation of alternative by-pass dimension : pass channels Due to space restrictions it may not be possible 12.4.1 By-pass requirements : above mentioned maximum dimension by-pass. * Referring to section 4.1.3, a by-pass duct in parallel with the heat exchanger enclosure In this case a smaller by-pass can be applied.
  • Page 20 13.0 INSTALLATION OF AIR FAN IN RESPECT OF RHC HEATING COIL To ensure a fluent air distribution over the RHC heating coil, it is stronly recommen-ded to follow the installation method as described in figure 15. Figure 15 : Installation of air fan With : A : min.
  • Page 21: Technical Data

    14.0 TECHNICAL DATA Table 8 - Model RHC 4000 Specifications Heat output Heat output Minimum Gas rate Power Heat input modulating Consumption Model output 100% 2 stage m³/h kg/h kg/h kW gros KW net 4050 06 62.00 55.90 50.80 5.90 4.50 4.40 0.15...