Reznor UDSBD-4E Installation, Commissioning, Servicing
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Reznor UDSBD-4E Installation, Commissioning, Servicing

Reznor UDSBD-4E Installation, Commissioning, Servicing

Gas fired balanced flue/fan assisted flue unit heater with centrifugal fan
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1801UDSBD-4E,--EN
GAS FIRED BALANCED FLUE / FAN ASSISTED FLUE
UNIT HEATER WITH CENTRIFUGAL FAN
UDSBD-4E
INSTALLATION - COMMISSIONING - SERVICING
These appliances meet the following EC Directives
DIR 2009/142/EC:GAD
DIR 2014/30/EU:EMC
DIR 2014/35/EU: LVD
DIR 2006/42/EC:MD
Applies to
Belarus, Bulgaria, China, Czech Republic, Croatia, Cyprus, Denmark, Estonia, Finland, Greece, Hungary,
Iceland, Latvia, Lithuania, Montenegro, New Zealand, Norway, Poland, Portugal, Romania, Russian
Federation, Sebria, Slovakia, Slovenia, Spain, Sweden, Turkey, Ukraine
Please read this document carefully before commencing installation, commissioning and/or servicing.
Leave it with the user or attached to the appliance or gas service meter after installation.
WARNING
Improper installation, adjustment, alteration, service or maintenance can cause property damage, 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
connection of the apparatus causing a dangerous operation possibly resulting in damage to the apparatus and/or environment
in which the unit is installed.
1801UDSBD-4E,GBEN, Pag. 1/35
Subject to modifications

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  • Page 1 1801UDSBD-4E,--EN GAS FIRED BALANCED FLUE / FAN ASSISTED FLUE UNIT HEATER WITH CENTRIFUGAL FAN UDSBD-4E INSTALLATION - COMMISSIONING - SERVICING These appliances meet the following EC Directives DIR 2009/142/EC:GAD DIR 2014/30/EU:EMC DIR 2014/35/EU: LVD DIR 2006/42/EC:MD Applies to Belarus, Bulgaria, China, Czech Republic, Croatia, Cyprus, Denmark, Estonia, Finland, Greece, Hungary,...

  • Page 2: Installation Codes

    INDEX GENERAL Warnings 1. General Models UDSBD-4E are design certified to the CE EN1020 2. Installation codes standard for use in industrial and commercial installations 3. Warranty only. All models and sizes are available for use with either 4. Uncrating and preparation natural or propane gas.
  • Page 3 Side view Front view 1. Combustion air inlet 2. Flue connection 3. External gas connection SCALE 1/4 4. Electrical connections SCALE 1/4 5. Service panel Table 1a : Dimensions (mm) UDSBD-4E 199,5 413 15,5 199,5 413 15,5 1801UDSBD-4E,--EN, Pag. 3/35...
  • Page 4 Rear view mod. 055-4E & 064-4E SCALE 7/50 1. Combustion air inlet 2. Flue connection 3. External gas connection 4. Electrical connections SCALE 7/50 5. Service panel Table 1b : Dimensions (mm) UDSBD-4E 025→030 1185 367,5 15,5 035→050 1610 148,5 COMBUSTION AIR INLET...

  • Page 5: Technical Data

    150mm at all points ! combustible materials. Table 2 : Clearances (mm) (*) : Heaters can be base mounted on UDSBD-4E Z (*) suitable non combustible supports. 015 → 030 035 → 064...
  • Page 6 Table 4b : Technical data UDSBD-4E Gas category see table 4a Comb. Air & Flue, type B instal. Comb. Air & Flue, type C instal. C12, C32, C42, C52, C62, C82 Flue & combustion air connection collars Heat input (Hs)
  • Page 7 Figure 2a : Blower curve for UDSBD015-4E→UDSBD/020-4E Figure 2b : Blower curve for UDSBD025-4E→030-4E 1801UDSBD-4E,--EN, Pag. 7/35...
  • Page 8 Figure 2c : Blower curves for UDSBD035-4E Figure 2d : Blower curves for UDSBD043-4E 1801UDSBD-4E,--EN, Pag. 8/35...
  • Page 9 Figure 2e : Blower curves for UDSBD050-4E Figure 2f : Blower curves for UDSBD055-4E 1801UDSBD-4E,--EN, Pag. 9/35...

  • Page 10: Flue Requirements

    Figure 2g : Blower curves for UDSBD064-4E FLUE REQUIREMENTS Model UDSBD-4E heaters may be installed as Type-B and IMPORTANT : Type-C installations. The flue must be installed in accordance with national Local requirements may apply in addition to national and local regulations. Failure to provide proper flueing requirements.
  • Page 11 Table 5 : maximum flue system pipe lengths UDSBD-4E 015-020 025050 055064 Heater socket & pipe dia mm Flue pipe/Inlet pipe Max straight length Flue pipe/Inlet pipe Equivalent length of 45° Flue pipe/Inlet pipe 0,75 0,75 0,75 elbow Equivalent length of 90°...
  • Page 12 SCALE: 3/50 Checked : DRAWN BY: 08.06.04 THIS DRAWING AND THE CONTAINED INFORMATION ARE THE PROPERTY OF REZNOR EUROPE. 0.000 MASS (kg) : NO PARTS THEREOF MAY BE REPRODUCED OR USED WITHOUT THE WRITTEN CONSENT OF THE OWNER. GROUP NAME:...
  • Page 13 7/100 Checked : DRAWN BY: 08.06.04 62216 00 THIS DRAWING AND THE CONTAINED INFORMATION ARE THE PROPERTY OF REZNOR EUROPE. DRAWN BY: 08.06.04 0.000 MASS (kg) : NO PARTS THEREOF MAY BE REPRODUCED OR USED WITHOUT THE WRITTEN CONSENT OF THE OWNER.

  • Page 14: Hanging The Heater

    Table 6 : Weights UDSBD-4E UDSBD-4E Be sure that the threaded hanger rods are locked to the heater as illustrated in figure 6. Recommended maximum hanger rod length is 1.8m.

  • Page 15: Electrical Connection

    ELECTRICAL CONNECTION MPORTANT: DANGER : THIS APPLIANCE MUST BE If the reset button requires activating for any reason, EARTHED. the cause must be determined. After determining and correcting the problem, restart the heater and monitor long enough to ensure proper operation The electrical installation may only be carried out by an (approx.
  • Page 16 Operating instructions and operating sequence Burner gas pressure adjustment The gas pressure is set for the required heat input before the Set thermostat to the lowest setting. appliance leaves the factory. Provided that the gas supply Turn off all electric power to the heater. to the air heater is in accordance with the supply pressure described on the appliance data plate, the operating pressure Shut the gas cock at the inlet of the unit.
  • Page 17 Figure 9 : Gas valve types 015-4E -> 043-4E Figure 10 : Gas valve types 050-4E -> 064-4E 2a/2b 1) Shut-off solenoid valve EV1 5) Shut-off solenoid valve EV2 2a) Adjustment low fire 6) Pilot outlet 2b) Adjustment high fire 7) Main gas outlet 3) Inlet pressure test point (not visible on fig.
  • Page 18 IGNITION SYSTEM This heater is equipped with a direct spark integrated control relay. The control relay monitors the safety devices and controls the operation of the venter motor and the gas valve between heat cycles. The time line below illustrates a nor- mal heat cycle.

  • Page 19: Maintenance & Service

    MAINTENANCE/SERVICE spected and cleaned at the start of each heating season Warning : If you turn off the power supply, always turn off (inspection and maintenance at least once a year). If the the gas. heater is operating in an area where an unusual amount of dust or other impurities are present in the air, more frequent The material contained in the MAINTENANCE AND SERVICE maintenance is recommended.

  • Page 20: Heat Exchanger Maintenance

    Figure 11b - Control panel assy located on a removable bracket 1) Control relay (ER) 2) Terminal blocks 3) Pressure switch (S3) 4) Electronic burner relay fuse 3.15AF HEAT EXCHANGER MAINTENANCE This heater is equipped with a patented T-CORE heat exchanger. 2®...

  • Page 21: Burner Maintenance

    BURNER MAINTENANCE This heater has a unique one-piece T-CORE burner assembly Inspect the burner/control compartment annually to deter- 2® designed to provide controlled flame stability without lifting or mine if cleaning is necessary. If there is an accumulation of flashback. The burner can be removed as a unit for inspection dirt, dust, and/or lint, clean the compartment and follow the or service : see below for removal instructions.

  • Page 22: Burner Orifice

    Figure 14 - Burner removal steps BURNER ORIFICE 2. Remove screws attaching burner 2. Remove screws attaching burner The burner orifice normally needs to be replaced only when a change in gas is made. When ordering a replacement orifice, provide (MJ/m ) heating value and specific gravity of gas, as well as the model and serial number of the unit.
  • Page 23 Flame sensor - Refer to figure 11a and locate the flame sen- Blower motor sor. Disconnect the wire, remove the screw and the flame sensor. Clean with an emery cloth.. Control relay - See figure 17. The electronic burner relay The blower motor is equipped with thermal overload monitors the operation of the heater including ignition.
  • Page 24 Figure 18b Remove dirt and grease from the motor casing, the venter housing, and the venter wheel. Venter motor bearings are UDSBD-4E mod. 025 - 030 permanently lubricated. (Rotation clockwise from motor shaft end) Follow these instructions for replacement of the venter motor and wheel assembly.

  • Page 25: Limit Controls

    OPERATING GAS VALVE LIMIT CONTROLS The main operating quick opening gas valve is powered through All units are equipped with temperature activated limit controls. the thermostat and safety controls. The main control valve is of The controls are factory set and non-adjustable. If either set- the diaphragm type providing regulated gas flow and is preset at point is reached, the corresponding limit control will interrupt the factory.

  • Page 26: Troubleshooting

    TROUBLESHOOTING 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. 1/ Air heater does not operate and lock-out indicator light is off 1801UDSBD-4E,--EN, Pag.
  • Page 27 2/ Air heater does not operate and lock-out indicator light is on 1801UDSBD-4E,--EN, Pag. 27/35...
  • 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: General Troubleshooting

    General troubleshooting PROBLEM PROBABLE CAUSE REMEDY Venter motor will 1. No power to unit 1. Turn on power, check supply fuses or circuit breaker. not start 2. No power to venter motor 2. Check connections at burner relay and/or venter motor terminals. 3.

  • Page 32: Parts List

    2 26 PARTS LIST Application Description Partnumber UDSBD-4E Control relay UDSBD015 … 064 03 25321 Spark ignitor UDSBD015 … 064 05 25162 Flame sensor UDSBD015 … 064 03 401US 195292 Limit control LC3 UDSBD015 … 064 03 24959 03 Limit control LC1 UDSBD015 …...
  • Page 33 J&M Sabbestraat 130/A000 B-8930 Menen, Belgium Hereby declares that the following gas-fired unit heaters: UDSBD-4E Types 015, 020, 025, 030, 035, 043, 050, 055, 064 Complies with the requirements of the above mentioned machinery directive Complies with the requirements of further directives, namely GAD 2009/142/EC - EMC 2014/30/EU –...
  • Page 34 1801UDSBD-4E,--EN, Pag. 34/35...
  • Page 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 1801UDSBD-4E,--EN, Pag. 35/35...

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