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Page No 16 of 56 Reznor, RHC21 4000 Installation EN May 2021 D301334 Issue 0

Example 2: Tmin = 13K (with minimum inlet temperature = -5°C)
model 4075-09 minimum airflow (see table 7 air flow duty) : 24.33kW results into :

Note: attention must be given to determine the maximum allowable airflow as a function of the
appropriate heat input.

24.33kW

5468

4.6 Compartment dimensions

RHC21

RHC4024-05

660

509

684

617

648

653

400

RHC4036-08

938

787

684

617

648

653

400

RHC4050-06

533

481

1049

975

800

804

400

RHC4060-07

603

551

1049

975

800

804

400

RHC4075-09

743

691

1049

975

800

804

450

RHC4100-12

953

900

1049

975

800

804

450

RHC4125M15

1274

1222

1049

975

800

804

450

RHC4150M18

1484

1432

1049

975

800

804

450

Table 8 : Duct channel & controls compartment

Содержание RHC21 4000

Страница 1: ...out by appropriately qualified persons The manufacturer does not take any responsibility in the event of non observance of the regulations concerning the connection of the apparatus causing a dangero...

Страница 2: ...ater OFF for short periods 29 5 13 To turn the air heater OFF for long periods 29 6 Servicing and maintenance 31 RHC21 4024 05 component layout 31 RHC 4036 08 4050 06 4060 07 4075 09 and 4100 12 compo...

Страница 3: ...Voltage Directive LVD 2014 30 EU Electromagnetic Compatibility Directive EMC Applicable Standards Applied EN 17082 2019 Domestic and non domestic gas fired forced convection air heaters for space hea...

Страница 4: ...ld not be used for closing down the main burner as it switches off the fan prematurely and may damage the heat exchanger invalidating the warranty Important notice to installers Before installation ca...

Страница 5: ...igned for use in hazardous atmospheres containing flammable vapours or combustible dust in atmospheres containing chlorinated or halogenated hydrocarbons or in appliances with airborne silicone substa...

Страница 6: ...of installation or the country codes and gas categories as shown in this instruction manual it will be necessary to contact the distributor or manufacturer to provide the necessary information for the...

Страница 7: ...scribed dimensions see table 8 The inlet temperature measured at the heat exchanger inlet is lower than the value stated on the chart see fig 5 dew point occurrence chart 1 3 Definitions Module The ga...

Страница 8: ...Hs G25 3 3 m h 3 17 4 77 6 66 8 41 9 91 13 00 16 58 19 83 Gas Consumption Low Fire Hs G25 3 3 m h 0 95 1 43 2 02 2 43 2 97 4 01 4 90 5 32 Gas Service Connection Inches BSP 1 2 3 4 3 4 3 4 3 4 3 4 11 4...

Страница 9: ...Fire G20 kg h 19 79 36 61 43 57 53 10 69 04 98 65 124 27 143 30 Mass Flow Rate Flue Gases High Fire G25 kg h 19 60 35 30 41 86 56 58 70 45 94 32 130 35 147 39 Mass Flow Rate Flue Gases High Fire G25 3...

Страница 10: ...igure 1 Side View Figure 1 1 RHC21 4024 05 Figure 1 2 RHC21 4036 08 4050 06 4060 07 4075 09 4100 12 Figure 1 3 RHC21 4125M15 4150M18 1 Gas connection 2 Flue outlet 3 Electrical connection 4 Condensate...

Страница 11: ...May 2021 D301334 Issue 0 Page No 11 of 56 3 Dimensions Figure 2 Top View Figure 2 1 RHC21 4024 05 B F G G L H J K Figure 2 2 RHC21 4036 08 4050 06 4060 07 4075 09 4100 12 B G G F L H J K Figure 2 3 R...

Страница 12: ...eznor RHC21 4000 Installation EN May 2021 D301334 Issue 0 3 Dimensions Figure 3 Front View Figure 3 1 RHC21 4024 05 Figure 3 2 RHC21 4036 08 4050 06 4060 07 4075 09 4100 12 Figure 3 3 RHC21 4125M15 41...

Страница 13: ...543 685 685 685 685 685 685 E 516 492 666 666 667 694 667 667 F 602 602 730 TBA 730 750 730 730 G 23 23 35 TBA 35 25 35 35 H 684 684 1049 1049 1049 1049 1049 1049 J 346 406 346 346 407 408 407 408 K...

Страница 14: ...ed at the factory Check the shipping label and data plate to ensure the specification of gas and electrical supplies are compatible Read this document and become familiar with the installation require...

Страница 15: ...URO C 4000 R JL EURO C 4000 D JL CONDENSATION POINT 20 C 0 C 20 C 40K 20K 0K T T INLET AIR TEMPERATURE 30K CONDENSATION ZONE AT THE HEAT EXCHANGER 10K TEMPERATURE RISE OVER THE HEAT EXCHANGER Figure 5...

Страница 16: ...w as a function of the appropriate heat input 24 33kW 5468 4 6 Compartment dimensions RHC21 H H1 Y Y2 W W1 E RHC4024 05 660 509 684 617 648 653 400 RHC4036 08 938 787 684 617 648 653 400 RHC4050 06 53...

Страница 17: ...llation instructions for making joints including connections to the air heater for passing through a building element and for support requirements Gasket sealed single wall seamless aluminium or stain...

Страница 18: ...from leaking into the building If the flue passes through a combustible element of the building it must be enclosed in a sleeve of non combustible material and separated from the sleeve by a minimum...

Страница 19: ...e on natural gas G20 G25 G25 3 Refer to the specifications in section 2 of this document and to the data plate for details of supply pressures A competent and or qualified engineer is required to eith...

Страница 20: ...he appliance data plate A unique appliance wiring diagram is supplied as a separate document A constant 230 volt 50 Hertz single phase with neutral link fused electricity supply is required All heater...

Страница 21: ...llow instructions supplied with such panels Thermostat s and or temperature sensor s should be mounted on a vibration free surface Room thermostat s sensor s should be mounted about 1 5m above floor l...

Страница 22: ...orrect voltage The same result should be obtained by connecting the test leads between live and neutral Connect the voltmeter test leads to N and E A reading of 0V should be obtained If these tests do...

Страница 23: ...w run and the burner will automatically light after about 35 seconds The air circulation fan will run within 30 seconds 7 If the installation is new three start up cycles may be necessary due to air s...

Страница 24: ...ate clockwise to increase pressure CO2 Refit cap after adjustment 1 Offset adjustment 2 Inlet pressure measuring point 3 CO2 adjustment point throttle 4 Offset pressure measuring point Figure 8 Gas va...

Страница 25: ...Fire Throttle G25 3 8 80 8 70 8 80 8 80 8 80 8 60 8 60 8 60 CO G25 3 ppm 50 ppm Throttle Turns from G20 Top Burner N A N A N A N A N A N A 1 5 out 2 25 out Throttle Turns from G20 Single Bottom Burner...

Страница 26: ...n the master burner following the commissioning procedure given opposite Once the master burner has been commissioned the slave burner must be commissioned To commission the slave burner the master bu...

Страница 27: ...en adjusting the throttle a set number of turns as indicated in the combustion data table If the chamber insulation has been replaced the organic binders will burn off during the first few minutes of...

Страница 28: ...the burner will run at the ignition speed for a few seconds to allow the flame to stabilise Following flame stabilisation the fan speed will increase to high fire to allow the heat exchanger to warm u...

Страница 29: ...13 To turn the air heater OFF for long periods Adjust the room thermostat to OFF or its lowest setting When the fan has stopped turn OFF the gas supply and then switch OFF the electricity supply to t...

Страница 30: ...ior to activation of the ignition device Safety time The safety time is the delay between the gas valve being energised and the flame sensor checking for the presence of a flame This is a period of 4...

Страница 31: ...Fan transition plate gasket 3 Blind rivet but 15 Combustion fan 4 Rear panel 16 Venturi fix kit 5 Top bottom panel 17 Gas valve 6 Corner bracket 18 Gas train assembly 7 Collector box assembly 19 Probe...

Страница 32: ...pe silicon gasket 29 Control box bracket 41 Burner tube insert 30 Control box assembly with controller 42 Stainless steel elbow 90 31 Thermostat bracket 43 Stainless steel spigot 32 Control box bracke...

Страница 33: ...Header panel 14 Corner bracket 3 Burner chamber assembly 15 Gas train assembly 4 50mm tube 16 Thermostat bracket 5 Rear panel 17 Gas train bracket 6 Collector box assembly 18 Nyloc nut 7 Tube support...

Страница 34: ...assembly with controller 27 Ceramic paper gasket with adhesive 39 LC3 limit control 28 Silicon foam gasket 40 Clips 29 Combustion fan 41 Ceramic paper gasket with adhesive 30 Gas valve 42 Burner insu...

Страница 35: ...x assembly 15 LC3 limit controller 4 Top collector box assembly 16 Clips 5 Brass elbow 17 Tapitscrew 6 Stainless steel 304 tube 18 Gas train bracket 7 Stainless steel 304 spigot 19 U shape silicon gas...

Страница 36: ...servicing is recommended When any service is completed be sure that components are reassembled correctly to ensure that no unsafe condition exists Upon completion of the service carry out the commissi...

Страница 37: ...ing the combustion fan to the burner 4 Remove the gas valve combustion fan assembly from the unit RHC21 4000 all models except 4100 12 gas valve flange assembly 5 The gas valve can now be disconnected...

Страница 38: ...embly 7 Refit gas valve in reverse order ensuring the o ring is fitted between the gas valve and venturi 8 Follow start up and commissioning procedures 7 2 Venturi cleaning and replacement 1 Clean the...

Страница 39: ...dure 7 3 Combustion fan cleaning and replacement 1 Follow steps 1 to 4 from gas valve replacement and step 3 from venturi replacement 2 Clean fan body with a lint free cloth and blow any dirt out of t...

Страница 40: ...air drying air should not exceed 1 5 bar 8 Replace the burner gasket if necessary 9 Refit in reverse order 10 Follow start up and commissioning procedure 7 5 Burner chamber tube insulation check and...

Страница 41: ...The first is located at the front of the chamber where the tubes are secured The second is located on the lower right side of the chamber where the probes are normally located It is recommended that b...

Страница 42: ...ket to release the probe mounting bracket 4 Pull probe mounting bracket away from the burner chamber to extract the burner probes 5 The burner probe assembly can now be removed from the heater 6 Revie...

Страница 43: ...1 Refit all parts in reverse order 12 Follow start up and commissioning procedure 7 7 Replacement of LC3 safety thermostats 1 Disconnect LC3 electrical connectors 2 Remove LC3 protective cap and lock...

Страница 44: ...ontroller 3 Remove program key and refit into new controller 4 Fix new controller to electrical panel and reattach all wiring 5 Follow start up and commissioning procedure 7 9 Replacement of ignition...

Страница 45: ...on controller 5 Throttle positioning see commissioning data table 6 Correct program key fitted 7 Gas valve 8 Integrity of appliance ground connection 9 Probe leads connected integrity 10 Flame sensor...

Страница 46: ...models 10 and 20 4 Lockout reset switch 5 Heat demand still present CHECK 1 Throttle positioning see commissioning data table 2 Flame sensor probe corroded 3 Flame signal min 1 0 A 4 Flame sensor pro...

Страница 47: ...All Lockout Reset Switch 60 61998 All Gas valve lead 1030864 All Gas Valve 03 25800 4024 05 4050 06 4125M15 6 4060 07 TBC for 4036 08 Gas Valve 03 25801 4075 09 4125M15 9 4150M18 Gas Valve 1030499 410...

Страница 48: ...eater MUST NOT be controlled by switching the main electrical supply to it ON and OFF The ignition sequence will commence each time the external controls e g Time clock room thermostat etc call for he...

Страница 49: ...oses and the air supply to the heater must not be restricted in any way Combustible materials must not be stored adjacent to the heater If at any time a gas leak is suspected turn OFF the gas supply a...

Страница 50: ...67 96 4 84 2 92 6 4050 06 51 2 16 5 0 123 0 012 0 001 83 3 88 7 0 0 0 0 66 96 4 84 4 91 6 4036 08 36 2 11 7 0 093 0 018 0 001 82 3 88 6 0 0 0 0 40 97 2 84 8 TBC 4024 05 24 2 7 8 0 040 0 008 0 001 82 5...

Страница 51: ...3 91 9 4050 06 51 2 16 5 0 123 0 012 0 001 83 2 88 6 0 0 0 0 48 96 4 84 4 92 4 4036 08 36 3 11 7 0 093 0 018 0 001 82 4 88 3 0 0 0 0 51 97 2 84 6 91 5 4024 05 24 2 7 8 0 040 0 008 0 001 82 6 88 3 0 0...

Страница 52: ...4 84 1 91 8 4050 06 51 0 16 4 0 123 0 012 0 001 82 9 88 4 0 0 0 0 54 96 5 84 1 92 0 4036 08 36 4 11 7 0 093 0 018 0 001 82 6 88 4 0 0 0 0 48 97 2 84 7 91 7 4024 05 24 1 7 8 0 040 0 008 0 001 82 3 88...

Страница 53: ...ddress Site name Commissioning Engineer Name Gas Safe Reg No Company Name Commissioning Date Burner Fuel type Inlet Pressure mbar Working Pressure mbar Burner Pressure Low Fire mbar High Fire mbar Low...

Страница 54: ...Page No 54 of 56 Reznor RHC21 4000 Installation EN May 2021 D301334 Issue 0 Notes...

Страница 55: ...Reznor 4000 Installation EN May 2021 D301334 Issue 0 Page No 55 of 56 Notes...

Страница 56: ...9707 reznorsales nortek com www reznor eu Nortek Global HVAC is a registered trademark of Nortek Global HVAC limited Because of the continuous product innovation Nortek Global HVAC reserves the right...

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