Nortek REZNOR UDSBD 015-3 Installation, Commissioning, Servicing Download Page 35

Page: 35 / 36

1611UDSBD-3GBEN, Pag. 35/36

Subject to modifi cations

26. Parts list

Description

Application UDSBD-3

Partnumber (PN)

Control relay

all

03 25322

Spark ignitor

all

05 25162

Flame sensor

all

03 401US 195292

Limit control LC3

all

03 24959 03

Limit control LC1

all

03 24959 04

Fan time delay relay KFC

all

03 25167

Filter

all

30 61747

Pressure switch

all except 030

30 60621 120

Pressure switch

30 60621 100

Burner-on indication lamp

all

60 61996

Reset switch

all

60 61988

Gas valve nat. gas 1st

all

03 25141

Gas valve nat. gas 2st

all

03 25136 02

Gas valve prop./but. 1st

all

03 25141

Gas valve prop./but. 2st

all

03 35136 P437

gas valve nat gas mod.

all

03 35145

gas valve prop/but mod.

all

03 35136 M337

Gas valve plug + wire 1st.

all

03 25141 V1

Gas valve plug + wire 2st+mod.

all

03 25136 V1

Potentiometer

all

30 60983

Cable

all

30 60983 01

Venter motor

015-3/020-3

11 43430 01

Venter motor

025-3/030-3

11 43426 04

Venter assembly

015-3/020-3

35 25218

Venter assembly

025-3/030-3

35 25222

Venter wheel assy

015-3/020-3

90 82242

Venter wheel assy

025-3/030-3

90 82244

Direct driven blower DD 9/7

015-3/020-3

01 27111

Direct driven blower DD 10/10

025-3/030-3

01 27210

Main wiring assy 1st

all

21 41642 P01

Main wiring assy 2st

all

06 41640 02

Venter wiring assy

015-3/020-3

06 41640

Relay 2st

all

30 61736 230V

Summary of Contents for REZNOR UDSBD 015-3

Page 1: ...missioning and or servicing Leave it with the user or attached to the appliance or gas service meter after installation Improper installation adjustment alteration service or maintenance can cause pro...

Page 2: ...d pressures 17 11 Electrical supply and connections 18 12 Check installation and start up 20 13 Maintenance schedule 24 14 Heat exchanger maintenance 25 15 Burner maintenance 26 16 Burner orifice 28 1...

Page 3: ...call a qualified service technician to inspect the appliance and replace any gas control that hes been immersed in water WARNING Gas fired appliances are not designed for use in hazourdous atmosphere...

Page 4: ...b The unit is installed without proper clearances as soon as clearances are required regardless of the material being combustible c A fan model is connected to a duct system or if the air delivery sy...

Page 5: ...as connection 4 Electrical connections 5 Service panel Rear view Side view Figure 1a UDSBD 015 3 020 3 Table 1a Dimensions mm J G K H R 1 2 4 3 P M N D A C U V E A1 Y Z X 5 UDSA 3 A A1 B C D E F G H J...

Page 6: ...H G R 1 2 3 4 L J K H G R 1 2 3 4 Rear view mod 055 2 064 2 Table 1b Dimensions mm P M N B A C U V E A1 X Y z 5 UDSA 3 A A1 B C D E F G H J K L M N P Q R 025 030 586 590 700 546 404 1185 546 367 5 191...

Page 7: ...ombustible materials Attention The clearance distance from the flue system must be minimum 150mm at all points Combustion air supply and flue system diameters Diameter gas connection Table 2 Clearance...

Page 8: ...d mounting the heaters above these recommendations unless downturn nozzle options are used as significant stratification may occur resulting in poor floor coverage and higher energy losses through the...

Page 9: ...1611UDSBD 3GBEN Pag 9 36 Figure 2a Blower curve for UDSBD 015 3 020 3 Figure 2b Blower curve for UDSBD 025 3 030 3...

Page 10: ...ower vented heater type B the combustion air is taken from the space where heater is installed which requires only a flue pipe exhausting to outdoors All products of combustion must be flued to outdoo...

Page 11: ...opper based alloys must not be used for condensation drains The port must be at least 450 mm away from the air heater flue connection socket Follow the flue pipe manufacturers installation instruction...

Page 12: ...within the space where the heater is installed Ensure that an adequate air supply for combustion and ventilation is provided within the building in ac cordance with BS6230 BS5440 plus other relevant...

Page 13: ...designed to take air for combustion from the space in which it is installed Do not re strict the combustion air intake Combustion air inlet pipe flue pipe for balanced flue installation type C applian...

Page 14: ...EN Pag 14 36 Figure 5 Type C appli ances Combustion air and flue pipe sockets 1 Flue pipe outlet collar 2 Combustion air pipe inlet collar 1 2 Models 015 3 020 3 2 1 Models 025 3 030 3 1 2 Models 035...

Page 15: ...e throw data in the technical data table of section 6 when determining where to suspend the heater CAUTION Do not locate the heater where it may be exposed to water For best results the heater should...

Page 16: ...from the heater cabinet panels 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 Where longer drops are required e...

Page 17: ...l Do not rely on the heater to support the gas pipe All sealing products shall be resistant to the action of liquefied petroleum gas or any other chemical constituents of the gas being supplied Instal...

Page 18: ...ll glow when pushing on the switch If the light does not glow check earth line and neutral connections A burner reset switch with red indicator light is fitted on the heater To add a remote reset butt...

Page 19: ...1611UDSBD 3GBEN Pag 19 36 Figure 8 Wiring connections on the terminal board only for illustrative purposes...

Page 20: ...ists between the black L1 and earth ground Verify that the appliance is earthed by conducting an earth continuity test WARNING For your safety follow the instructions exactly otherwise damage or injur...

Page 21: ...burner flame 11 Burner flame is sensed by a flame rod sensor and when the heat exchanger is warmed up 30 seconds and the fan time delay relay closes the blower motor is energized 12 If the flame is ex...

Page 22: ...pressure Remove the ccover cap Turn the regulator screw anti clockwise to decrease pressure or clockwise to increase pressure see figure 9 Set room thermostat to lowest setting to turn OFF the burners...

Page 23: ...r 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 of 30...

Page 24: ...reated When starting the heater always follow the lighting instructions on the heater Warning If you turn off the power supply always turn off the gas Maintenance Schedule The following procedures sho...

Page 25: ...dirt or dust accumulation Visually check the heat exchanger for cracks and holes If a crack or hole is observed replace the heat exchanger 14 Heat Exchanger Maintenance 15 Control relay ER 16 Termina...

Page 26: ...of eye protection is recommended Burner removal Instructions for burner removal see fig 11a 1 Outside the cabinet shut the gas supply off at the manual valve ahead of the union 2 Turn off the electri...

Page 27: ...re burner slightly to the right to disengage the burner from the supports on the left Then rotate the open end of the venturi tube outward away from the heater Carefully pull the burner assembly out o...

Page 28: ...burner flame entrance of each tube shine a bright light into each heat ex changer section With the light shining into the heat exchanger observe the outside surface of the tube where discoloration is...

Page 29: ...reset type Should the motor fail to run it may be because of improper voltage characteristics Make certain that the correct voltage is available at the motor Figure 17 Control relay Flame sensor Refer...

Page 30: ...res at the control relay and ground screw located on the control panel 4 Holding the motor remove the screws that attach the motor plate to the venter housing Remove the motor and wheel assembly from...

Page 31: ...22 Combustion air pressure switch The combustion air pressure switch ensures that proper combustion airflow is available The switch senses the differential pressure between the negative pressure in t...

Page 32: ...tion in the case of motor failure or lack of airflow due to restrictions For locations see figure 11a Figure 23 Location LC1 LC3 Figure 24 Fan delay control KFC 24 Flue and combustion air piping Check...

Page 33: ...1611UDSBD 3GBEN Pag 33 36 25 Troubleshooting...

Page 34: ...d Replace if ceramic spark electrode 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 I...

Page 35: ...e prop but 1st all 03 25141 Gas valve prop but 2st all 03 35136 P437 gas valve nat gas mod all 03 35145 gas valve prop but mod all 03 35136 M337 Gas valve plug wire 1st all 03 25141 V1 Gas valve plug...

Page 36: ...01384 489 250 www ambirad co uk Registered in England N 1390934 Registered office 10 Norwich Street London EC4A 18D Nortek Global HVAC is a registered trademark of the Nortek Global HVAC Limited Becau...

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