Reznor UESA, Installation And Operation Manual

Page 1: ...ufacturer does not take any responsibility in the event of non observance of the regulations concerning the connection of the apparatus causing a harmful operation possibly resulting in damage to the...

Page 2: ...4 Gas conversion 6 2 Venting and combustion air 6 2 1 Flue requirements 6 2 2 Flue requirement for installations type B 6 2 3 Flue requirement for installations type C 7 Electrical connections 16 7 1...

Page 3: ...ldren should be supervised to ensure that they do not play with the appliance 1 GENERAL 1 2 General information Models UESA 035 through 102 are design certified to the CE EN1020 standard for use in in...

Page 4: ...e of cold air typically from a distance of 4 5 to 6 0 meters or install a downflow unit over the door opening CAUTION Do not locate the heater where it may be exposed to water Hazards of Chlorine appl...

Page 5: ...Suspend the heater so that the bottom is a minimum of 2 5m above the floor Figure 1a Table 1a Clearances Heaters can be base mounted on suitable non combustible supports Attention The minimum overall...

Page 6: ...SA 035 055 083 102 Flue outlet Air inlet diameter mm 100 100 130 130 Gas connection diameter 3 4 3 4 3 4 3 4 Rear view Side view Front view Top view Legend 1 Combustion air inlet 130 2 Flue connection...

Page 7: ...d into the cabinet WARNING WARNING Unit must be level for proper Unit must be level for proper operation Do not place or operation Do not place or add additional weight to the add additional weight to...

Page 8: ...ervice NEVER TEST FOR LEAKS WITH AN OPEN FLAME Failure to comply could result in personal injury property damage or death Figure 3 Gas connection WARNING This appliance is equipped for a maxi mum gas...

Page 9: ...as valve Affix new data plate and gas type label Upon completition of conversion re commission the air heater in accordance with sec tion 9 of this document Changes to carry out Natural gas set pressu...

Page 10: ...ich will condense out within the flue No condensate leakage is permitted Horizontal flue runs must rise by 1 17mm per meter from the appliance to ensure that the condense returns to the flue drain Gas...

Page 11: ...both produced in the heater and collected from the vent ing system Therefore the installaton requires a condensate drain from the secondary heat exchanger and a condensate drain from the flue exhaust...

Page 12: ...es to be certain that this is permitted condensate from the heater has about the acidity of soda pop and is not harmful to a sanitary drain UESA heaters will produce condensate depending on size and g...

Page 13: ...ue pipe seamless aluminium pipes are required All joints must be sealed to prevent products of combustion from leaking into the building As condensation is unavoidable provision must be made for the c...

Page 14: ...l times Reliance on doors and windows is not permitted Always ensure that adequate combustion air is provided to suit the total instal lation of all combustion equipment in accordance with BS6230 or B...

Page 15: ...page 15 31 Figure 10 Approved appliances type C For illustrative purposes only For actual pipe con nections see figure 11 Figure 11 Type C appliances combustion air and flue pipe sockets C12 C52 C12b...

Page 16: ...o ensure correct operation of the unit An external burner reset switch with red indicator light is fitted on the heater To add a remote reset button make connections to the terminals in the electric b...

Page 17: ...1104UESAGBEN page 17 31 7 2 Wiring connection connection Smartcom...

Page 18: ...the prime safety shutoff All gas supply lines must be free of dirt or scale before connecting to the unit to ensure correct sealing 8 3 Safety controls 8 3 1 Combustion air pressure switch The combus...

Page 19: ...needs replacing use only the factory authorized re placement part for the size of heater For limit locations see figure 16a 8 3 2 Limit controls WARNING Never bypass the limit controls hazardous condi...

Page 20: ...down and the moment the combustion fan venter is de energized Start pre purge Energisation of venter motor If the differential pressure switch is in normally closed position start position Power to ga...

Page 21: ...Set thermostat to lowest setting 2 Turn off all electrical power to the heater 3 Shut the manual service valve at the inlet of the unit 4 Wait five 5 minutes for any gas to evacuate the heater Then s...

Page 22: ...nt in the air more frequent maintenance is recommended When any service is completed be careful to reassemble correctly to ensure that no unsafe conditions are created When starting the heater always...

Page 23: ...there is an accumulation of dirt dust and or lint clean the compartment and follow the instructions below to remove and clean the burner Caution use of eye protection is recommended Instructions for...

Page 24: ...paces between the burner ribbons Holding the burner assembly so that any foreign material will fall away from the burner use a stiff bristle brush to loosen and remove any foreign material s If the bu...

Page 25: ...mportant When reassembling the wire must remain attached to the ignitor Inspect the internal portion of the heat exchanger with burner assembly re moved At the burner flame entrance of each tube shine...

Page 26: ...1 If the heater is installed turn off the gas and dis connect the electric power 2 Open the access door and disconnect the fan motor wires 3 Remove the fan assembly fan guard motor and fan blade 4 Di...

Page 27: ...6 Follow the wiring diagram to properly connect the wires 7 Restore power to the heater and turn on the gas Light following the instructions on the lighting instruction plate Check for proper operati...

Page 28: ...or with emery cloth or steel wool Is the sensor located in flame Reposition flame sensor Is the heater grounded earthed Replace flame sensor Connect ground wire earth to unit chassis YES NO NO YES NO...

Page 29: ...mic spark electrode is cracked or grounded e Burner relay not grounded e Check burner relay ground wire f Unit not properly grounded f Make certain unit is properly field grounded earthed and properly...

Page 30: ...102 30 60618 450 Relay all 30 61748 Burner on indication lamp all 60 61996 reset switch all 60 61988 Gas valve nat gas 1st all 03 25136 Gas valve nat gas 2st all 03 25136 02 Gas valve prop 1st all 03...

Page 31: ...0 5 m s The air throw will be influ enced by the height of the building mounting height of the unit ambient temperature adjustment of the louvres 6 Sound pressure level in dB A in free field conditio...