Reznor UDSA 100-2 Manuel de service

0803UDSA-2GBEN, Pag. 1/360803UDSA-2GBENUDSA 008-2 / 100-2Gas fired Balanced flue / Fan assisted flueunit heaterINSTALLATIONCOMMISSIONINGSERVICINGThese

0803UDSA-2GBEN, Pag. 10/36Figure 3 :Type B appliances : Combustion air and flue pipe sockets1) Flue pipe outlet collar2) Combustion air inlet openinga

0803UDSA-2GBEN, Pag. 11/36Figure 5 : Type C appliances : Combustion air and flue pipe sockets Combustion air inletpipe & flue pipe forbalanced

0803UDSA-2GBEN, Pag. 12/36The presence of chlorine vapours in the combustion air of gas-fired heating equip-ment presents a potential corrosion hazard

0803UDSA-2GBEN, Pag. 13/369. Hanging the heaterWarning : Do not place or add additional weight to the suspended heater.Before suspending the heate

0803UDSA-2GBEN, Pag. 14/36Figure 7 :Wall bracket kits (optional)Types 008-2 -> 030-2When desired the heaters may be supported by wall brackets. Su

0803UDSA-2GBEN, Pag. 15/36All piping must be in accordance with requirements outlined in the National GasCodes (different for each country). Gas suppl

0803UDSA-2GBEN, Pag. 16/3611. Electricalsupply andconnectionsThe electrical installation may only be carried out by an appropriately qualifiedperson c

0803UDSA-2GBEN, Pag. 17/36Figure 9 : Wiring connections on the terminal board

0803UDSA-2GBEN, Pag. 18/3612. Check in-stallation&start-upCheck the instal-lation prior tostart-upHeater start-up Check suspension. Unit must

0803UDSA-2GBEN, Pag. 19/36Operating instructionsand operating sequenceCheck installation afterstart-up1. Set thermostat to the lowest setting. 2.

0803UDSA-2GBEN, Pag. 2/36INDEXWarnings ...

0803UDSA-2GBEN, Pag. 20/36Burner gas pressureadjustmentThe gas pressure is set for the required heat input before the appliance leaves thefactory. Pr

0803UDSA-2GBEN, Pag. 21/36Figure 10b : HONEYWELL gas valve (type 035-2 -> 100-2)Table 8 : Burner jets and pressures26314578Legend1) Gas inlet2) Ga

0803UDSA-2GBEN, Pag. 22/36DefinitionsStart position: The system is not in lock-out position and can proceed with the start-up sequence upon a demand f

0803UDSA-2GBEN, Pag. 23/3613. Maintenance & ServiceMaintentance Sched-uleNOTE: If replacementparts are required, use onlyfactory-authorized

0803UDSA-2GBEN, Pag. 24/36Figure 11b - Control panelassy located on a removablebracketLegend:15) Control relay (ER)16) Terminal blocks17) 2 stage burn

0803UDSA-2GBEN, Pag. 25/3615. Burner MaintenanceThis heater has a unique one-piece T-CORE2® burner assembly designed to pro-vide controlled flame

0803UDSA-2GBEN, Pag. 26/366. Remove burnera) Locate the burner body front support. Removethe screws that attach it to the secondary airshield. Refer

0803UDSA-2GBEN, Pag. 27/36Inspect and clean the burnerReinstall the burnerRepeat ‘Burner removal’ steps above in the opposite order.Ignitor - Refer to

0803UDSA-2GBEN, Pag. 28/36Figure 17 - Control relayFlame sensor - Refer to figure 11a and locate the flame sensor. Disconnect thewire, remove the scr

0803UDSA-2GBEN, Pag. 29/3620. Venter motor & wheelFigure 18 - Fan blade positionon the motor shaft3. Remove the fan assembly (fan guard, moto

0803UDSA-2GBEN, Pag. 3/36FOR YOUR SAFETYWhat to do if you smell gas:• Do not try to light any appliance.• Do not touch any electrical switch; do not u

0803UDSA-2GBEN, Pag. 30/36Venter wheel position onshaftFigure 19UDSA models 008-2 - 020-2(Rotation clockwise from motor shaft end)UDSA models 025-2

0803UDSA-2GBEN, Pag. 31/3621. Operating gas valveFigure 22Gas valve(UDSA models 008-2 - 030-2)Figure 23Gas valve(UDSA models 035-2 - 100-2)WARNIN

0803UDSA-2GBEN, Pag. 32/3623. Limit controlsIf a limit control needs replacing,use only the factory authorized re-placement part for the size ofheat

0803UDSA-2GBEN, Pag. 33/3625. Trouble-The integrated control relay monitors the operation of the heater. If theheater fails to operate properly, rev

0803UDSA-2GBEN, Pag. 34/36YESYESYES NOYESNO YE S NOYESNOYESNOTrial for ignitionCall for heatIs there a spark across gap at igniter? Does gas ignite?I

0803UDSA-2GBEN, Pag. 35/36General TroubleshootingPROBLEM PROBABLE CAUSE REMEDY1. No power to unit. 1. Turn on power, check supply fuses or circuit bre

0803UDSA-2GBEN, Pag. 36/36Subject to modifications26. Parts listDescriptionApplicationUDSA-2 Partnumber (PN)Control relay 008 … 100 03 25322Spark ig

0803UDSA-2GBEN, Pag. 4/363. Warranty4. UncratingandpreparationWarranty is void if :a. Wiring is not in accordance with the diagram furnished with th

0803UDSA-2GBEN, Pag. 5/365. Dimensions & Clearances (horizontal orientation=standard) Top view Front viewLegend:1.

0803UDSA-2GBEN, Pag. 6/36Clearances (mm)Units must be installed so that the minimum clearances in the following table areprovided for combustion air s

0803UDSA-2GBEN, Pag. 7/366. Technical dataTable 4 : Technical data1) Gas Appliance Classifications for Approved Venting Methods based on CEN-report

0803UDSA-2GBEN, Pag. 8/367. FluerequirementsModel UDSA-2 heaters may be installed as Type-B and Type-C installations.Flue must be in accordance with

0803UDSA-2GBEN, Pag. 9/36 Flues for powervented installations(type B appliances)Figure 2 : Approved appliances type BB22 - roof Flue outletVente