Reznor UDSBD-4E Installation, Commissioning, Servicing Download Page 26 | Manualshive

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1801UDSBD-4E,--EN, Pag. 26/35

The integrated control relay monitors the operation of the heater. If the heater fails to operate properly, review the flow chart

below and see the operating sequence in section 16.
The general troubleshooting charts on the following pages will also help you to determine the problem.

TROUBLESHOOTING

1/ Air heater does not operate and lock-out indicator light is off

5

55

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Summary of Contents for UDSBD-4E

Page 1: ...e injury or death All work must be carried out by appropriately qualified persons The manufacturer does not take any responsibility in the event of non observance of the regulations concerning the con...

Page 2: ...ensure that they do not play with the appliance These units must be installed in accordance with BS6230 or BS5440 as appropriate plus all local building codes Models UDSBD 4E are design certified to t...

Page 3: ...w Figure 1a UDSBD015 4E UDSBD020 4E Table 1a Dimensions mm J G K H R 1 2 4 3 P M N D A C U V SCALE 1 4 E A1 Y Z X 5 SCALE 1 4 UDSBD 4E A A1 B C D E F G H J K L M N P Q R 015 383 460 700 343 404 935 54...

Page 4: ...N AIR INLET FLUE CONNECTION EXTERNAL GAS CONNECTIONS ELECTRIC CONNECTIONS SERVICE PANEL 2 1 3 4 5 5 1 2 3 4 Rear view mod 055 4E 064 4E Table 1b Dimensions mm P M N B A C U V SCALE 7 50 E A1 X Y z SCA...

Page 5: ...illlustrate for each unit which speeds can be chosen in order to get another air duty Speeds not illustrated in the curves mean that these are not applicable means unit should not be set to that speed...

Page 6: ...96 1662 1662 1700 1700 1700 1700 1700 1 Gas Appliance Classifications for Approved Venting Methods based on CEN report CR1749 2001 2 There is a difference between the gas connection diameter and the d...

Page 7: ...1801UDSBD 4E EN Pag 7 35 Figure 2a Blower curve for UDSBD015 4E UDSBD 020 4E Figure 2b Blower curve for UDSBD025 4E 030 4E...

Page 8: ...1801UDSBD 4E EN Pag 8 35 Figure 2c Blower curves for UDSBD035 4E Figure 2d Blower curves for UDSBD043 4E...

Page 9: ...1801UDSBD 4E EN Pag 9 35 Figure 2e Blower curves for UDSBD050 4E Figure 2f Blower curves for UDSBD055 4E...

Page 10: ...requires only a flue pipe exhausting to outdoors 7 FLUE REQUIREMENTS Each heater installed as a type B appliance must be fitted with an individual flue pipe and the combustion air inlet opening is pr...

Page 11: ...building element and for support requirements Single wall flue seamless aluminium or stainless steel pipes are required All joints must be sealed to prevent products of combustion from leaking into t...

Page 12: ...035 2 043 2 050 2 Models 015 4E 020 4E Always ensure that adequate combustion air is provided to suit the total installation of all combustion equipment in accordance with BS6230 or BS5440 as appropr...

Page 13: ...ended height can result in significant air stratification When possible heaters should be arranged to blow toward or along exposed wall surfaces 8 Suspended heaters are most effective when located as...

Page 14: ...sized Table 6 Weights 10 GAS PIPING PRESSURES All piping must be in accordance with requirements outlined in the National Gas Codes different for each country Gas sup ply piping installation should al...

Page 15: ...contacts Ensure that all cables and installers wiring are fixed to the gas pipe and that they do not touch the combustion collector box 11 ELECTRICAL CONNECTION MPORTANT If the reset button requires...

Page 16: ...omatically 14 To turn the heater OFF for long periods see To turn off gas supply at the appliance below TO TURN OFF GAS SUPPLY AT THE APPLIANCE 1 Set thermostat to the lowest possible setting or OFF p...

Page 17: ...6 80 36 00 35 90 35 80 35 70 35 60 inlet pressure 37 mbar 015 2 020 2 025 2 030 2 035 2 043 2 050 2 055 2 064 2 Nat Gas G20 Burner jet dia 3 70 4 20 4 80 5 30 5 75 6 50 6 80 7 10 8 00 Burner pressure...

Page 18: ...ng for the presence of a flame This is a period of 5 seconds Note If no flame is sensed the burner relay will attempt ignition 5 times before going into lock out mode Post purge time This is the time...

Page 19: ...idence of physical damage Check the burner for scale dust or lint accumulation Clean if required 1 Burner 2 LC3 limit control 3 Burner operating led 4 Reset switch S5 burner lockout 5 Spark ignitor ER...

Page 20: ...ks 3 Pressure switch S3 4 Electronic burner relay fuse 3 15AF This heater is equipped with a patented T CORE2 heat exchanger Remove any external dirt or dust accumulation Visually check the heat excha...

Page 21: ...burner pushing the manifold to the right This will move the manifold out of the way Refer to figure 14 for component definitions Figure 12a Figure 12b Burner orifice Locking nut Orifice adapter 15 BUR...

Page 22: ...at exchanger section With the light shining into the heat exchanger observe the outside surface of the tube where discoloration is evident Repeat this procedure with each heat exchanger tube If any li...

Page 23: ...otor The blower motor is equipped with thermal overload protection of the automatic reset type Should the motor fail to run it may be because of improper voltage characteristics Make certain that the...

Page 24: ...r and wheel assembly from the heater 5 Reassemble with the replacement venter motor and wheel assembly 6 Follow the wiring diagram to properly connect the wires 7 Restore power to the heater and turn...

Page 25: ...oper com bustion airflow is available The switch senses the differential pressure between the negative pressure in the flue gas collector box and the pressure in the control section On startup when th...

Page 26: ...heater fails to operate properly review the flow chart below and see the operating sequence in section 16 The general troubleshooting charts on the following pages will also help you to determine the...

Page 27: ...1801UDSBD 4E EN Pag 27 35 2 Air heater does not operate and lock out indicator light is on...

Page 28: ...1801UDSBD 4E EN Pag 28 35...

Page 29: ...1801UDSBD 4E EN Pag 29 35...

Page 30: ...1801UDSBD 4E EN Pag 30 35...

Page 31: ...e is cracked or grounded e Check burner relay ground wire f Make certain unit is properly field grounded earthed and properly phased L1 to hot lead L2 to neutral g If voltage is available to the burne...

Page 32: ...P337 gas valve nat gas modureg UDSBD015 043 03 25140 M gas valve prop modureg UDSBD015 043 03 25140 M gas valve nat gas 2st UDSBD050 064 03 25136 02 gas valve prop 2st UDSBD050 064 03 35136 P437 gas...

Page 33: ...ctive Complies with the requirements of further directives namely GAD 2009 142 EC EMC 2014 30 EU LVD 2014 35 EU The following harmonized standards have been applied EN 1020 Non domestic gas fired forc...

Page 34: ...02 0 02 0 02 0 02 Useful efficiency Useful efficiency at rated heating capacity nom 83 8 83 4 83 6 84 0 83 7 84 6 84 4 84 3 84 2 Useful efficiency at minimum capacity pl 81 8 81 4 82 0 82 7 82 4 83 1...

Page 35: ...1801UDSBD 4E EN Pag 35 35 NORTEK GLOBAL HVAC Belgium nv J M Sabbestraat 130 A000 B 8930 Menen Belgium Tel 32 0 56 52 95 11 www reznor eu...

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