Reznor ML 1511 Installation, Commissioning, Service And User Instructions
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Reznor ML 1511 Installation, Commissioning, Service And User Instructions

Reznor ML 1511 Installation, Commissioning, Service And User Instructions

Gas fired warm air heaters
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Reznor
PLEASE READ THIS DOCUMENT BEFORE COMMENCING INSTALLATION. THIS DOCUMENT ALSO INCLUDES USER
INFORMATION. AFTER INSTALLATION, PLEASE LEAVE IT WITH THE USER OR ATTACHED TO THE APPLIANCE OR
®
GAS FIRED WARM AIR HEATERS
TYPE ML 1511, 1515 & 1520
Axial Fanned, Forced Convection Air Heaters
with Automatic Ignition & Fanned Flues for use as:
Type B22 - C12 or C32 Appliances
Designed for Free Blowing use
INSTALLATION, COMMISSIONING, SERVICE
AND USER INSTRUCTIONS
These appliances meet the following EC Directives:
Dir. CE 90/396/EEC GAD
Dir. CE 89/336/EEC EMC
Dir. CE 89/392/EEC MD
Dir. CE 73/23/EEC LVD
THE GAS SERVICE METER.
0108ML00GBEN

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Summary of Contents for Reznor ML 1511

  • Page 1 Reznor ® 0108ML00GBEN GAS FIRED WARM AIR HEATERS TYPE ML 1511, 1515 & 1520 Axial Fanned, Forced Convection Air Heaters with Automatic Ignition & Fanned Flues for use as: Type B22 - C12 or C32 Appliances Designed for Free Blowing use...

  • Page 2: Table Of Contents

    INDEX Page 1. General ............................... 2 2. Technical data ............................. 3 3. Installing ..............................5 4. Combustion, Air supply and flue system......................6 5. Gas connection ............................8 6. Electrical connection ............................. 9 7. Commissioning, lighting and operation ......................9 8.

  • Page 3: Technical Data

    SECTION 2. TECHNICAL DATA Table 1. Appliance Data Type ML 1511 1515 1520 Gas category 'Cat.' 2H3+ Air supply and flue type B22 - C12 - C32 Heat input (Hs) 'Qn' 12,62 20,0 24,21 Heat input (Hi) 'Qn' 11,36 18,00 21,80 High heat output 10,30...
  • Page 4 Figure 1. DIMENSIONS FRONT VIEW SIDE VIEW CONTROLS SIDE PLAN REAR VIEW Table 2. DIMENSIONS Re: FIGURE 1 MODEL 1511 1515 / 1520 A Width overall B Depth overall C Depth of fan assembly D Width of casing (burner access) E Suspension socket centres F Centre Combustion air inlet to opposite side G Centre Combustion air inlet to controls side...

  • Page 5: Installing

    ML series air heaters is via the services and electrical wiring. Figure 2. INSTALLATION CLEARANCES, SUSPENSION & MOUNTING Reznor wall bracket part number 80 28006 l l a Base mounting on wall bracket Showing stub duct for blow through a wall application 0108MLOOGBEN...

  • Page 6: Combustion, Air Supply And Flue System

    The products of combustion must be flued to figure 4, then only an approved system using outdoor atmosphere. Common flues for more than Reznor specified components may be used. These one appliance must NOT be used. items are manufactured from seamless aluminium...
  • Page 7 1° i.e. 17 mm per metre should be maintained. Figure 4 FLUE SYSTEMS FOR TYPE C APPLIANCES Reznor concentric flue system Mugro 2000 system horizontal or burfix Mugro 2000 system vertical or burfix 80 80/125 horizontal...

  • Page 8: Gas Connection

    Figure 5 FLUE SYSTEMS FOR TYPE B APPLIANCES A guard must be fitted to combustion air inlet. A Ø 80 mm 90° elbow or Reznor option as shown SECTION 5 GAS CONNECTION Connection to the gas supply may only be carried out...

  • Page 9: Electrical Connection

    7.2.2 At the dictates of the external controls an electrical circuit is made to an electronic burner control The Reznor ML series air heaters do not require burner control checks to ensure a safe start is commissioning. Final testing during production...

  • Page 10: Maintenance

    Check for security and General: worthiness of the suspension or mounting system. 8.3.1 Reznor ML series air heaters require maintenance Check condition of total air heater electrical circuit and service at least once a year. More frequent including isolator. Look for damage to conduits/ servicing may be required dependent upon the conductor insulation.
  • Page 11 It is necessary to remove the burner rack assembly remove burner manifold assembly to clean the burner ribbons and to inspect and clean incorporating the gas burner injectors and multi- the inner surfaces of the heat exchanger. functional gas valve. Figure 10 key 21. To remove the burner rack assembly refer to figure A) Unscrew Qty 4 screws securing adaptor elbow 7, 6 step procedure...
  • Page 12 Figure 8 FLUE GAS FAN (venter) COMPONENTS Legend : Fan housing Impeller Motor mounting plate Heat sink rotor Motor Fan impeller critaical dimensions Figure 9 IGNITER ASSEMBLY DETAIL To renew the motor capacitor. Fig.10 key 24. This is located behind the motor end plate, access is by removal of two screws.
  • Page 13 C) To remove unscrew Qty. 2 control fixing screws D) Control is now released. N.B. : This is not a repairable item therefore, no attempt should be made to do so. Replacements of this unique specification must be obtained from Reznor. 0108MLOOGBEN...
  • Page 14 Figure 10 COMPONENT PARTS LOCATION Legend figure 10: Flue outlet Capillary for LC3 Venter housing Relay for isolation transformer (not GB) Venter motor Igniter assembly Fan impeller Multi-functional gas control Suspension socket 1" BSP Burner pressure test point Combustion circuit reference pressure points Burner manifold Thermal overheat control and reset switch LC3 Combustion air inlet socket...

  • Page 15: Spare Parts List

    SECTION 9 : ML Short Parts Listing ITEM DESCRIPTION MAKERS REF. PART NO USED ON Gas Valve "SIT" 830040 ½" 03 25250 Natural & Propane gas Burner Jet 170 = φ 1.7 mm 07 25801 170 Natural Gas Burner Jet 090 = φ...

  • Page 16: Gas Conversion

    SECTION 10 GAS CONVERSION INSTRUCTIONS 10.1 Reznor ML series air heaters are designed to operate N.B. Normally natural gas air heaters are supplied on Natural-Propane-Butane gas and will be supplied without air shutter assemblies. If converting to as ordered for the gas type specified.

  • Page 17: Fault Finding

    E) Local ambient air temperature near the air heater too high - above 30° check for stratification - 11.3 Burner lights & goes out immediately : install a Reznor "Maximizor" and save energy! Insufficient flame proving current: check ignition 11.9 Air circulatory fan keeps running : device &...

  • Page 18: Health And Safety Statement

    Precautions: Avoid handling. This product can irritate and defat the skin. Prolonged contact may 12.2 Reznor products contain no asbestos; copper is not cause dermatitis. Avoid breathing vapour. Avoid employed in gas carrying components; solder eye contact.Do not ingest.

  • Page 19: User Instructions

    13.5.1 Reznor ML series air heaters are "state of the art" a safe condition. Thereafter the fan will remain gas fired appliances and incorporate an atmospheric off until the next cycle is initiated.
  • Page 20 If in doubt, ask your installer, service undertaking or the manufacturer about Some Reznor unit air heaters have fans connected inspection and service intervals. The air heater to a remote override switch. This enables cool air should be serviced at least once every heating to be used for circulation purposes when the air season.
  • Page 21 Reznor® ML SERIES ONE OF THE Reznor GENERATION OF CE MARKED GAS FIRED ENERGY EFFICIENT AIR HEATERS BEST USED WITH Reznor OPTIONAL ELECTRONIC CONTROL PANELS SAVE ENERGY AND OPTIMISE THERMAL COMFORT 0108MLOOGBEN...

This manual is also suitable for:

Ml 1515Ml 1520

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