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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

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

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

THE GAS SERVICE METER.

Summary of Contents for ML 1511

Page 1: ...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...

Page 2: ...ountry concerned Such instructions may be obtained upon request from your supplier 1 5 Check that the local distribution conditions of electricity supply type of gas and pressure and adjustment of the...

Page 3: ...10 Throw terminal VO 0 5 m s m 11 0 15 3 17 1 Nominal fan speed rpm 1000 950 Sound power level LW dB A 57 62 64 Sound pressure level LP 5 dB A 42 47 49 Electrical supply 230 240V 1 N 50Hz Protection g...

Page 4: ...ing burner access 330 470 E Suspension socket centres 357 497 F Centre Combustion air inlet to opposite side 247 317 G Centre Combustion air inlet to controls side 315 385 Flue socket diameter interna...

Page 5: ...is via the base of the appliance A space of at least 500 mm must be allowed for this purpose Base support elements must be installed respecting the criteria shown in figure 3 3 6 Two threaded sockets...

Page 6: ...ed flueing and combustion air intake arrangements are based upon the use of smooth wall aluminium flue and combustion air ducts and fittings 4 6 Type C Appliances 4 6 1When using a concentric terminat...

Page 7: ...avoided flues should be insulated if they are installed in cold areas The use of twin wall flues should also be considered 4 7 5 When mechanical ventilation is used it shall be by mechanical inlet wi...

Page 8: ...data described on the air heater and its packaging 5 3 An adequate gas supply sized to provide the dynamic pressure for the volume required by the air heater s is essential to maintain the nominal he...

Page 9: ...external controls are operated that a constant electrical supply to the air heater is maintained when the controls are in the OFF mode This is necessary so that the air circulation fan may operate at...

Page 10: ...ttempts to light it may be necessary If the ML air heater still does not light follow fault finding procedure section 9 TO TURN OFF 1 SHORT PERIOD Turn room thermostat to lowest setting To relight res...

Page 11: ...ulation If in doubt about its condition it is wise to renew this item N B The igniter element is an extremely fragile device Handle with care 8 6 To remove the burner manifold assembly incorporating t...

Page 12: ...erminal housing is correctly relocated should this become dislodged whilst changing the capacitor and ensure the capacitor end bolt touches the motor terminal housing thus ensuring the capacitor elect...

Page 13: ...ure switch Port P1 on switch to lower reference Key 6 Port P2 on switch to top reference Key 6 N B 2 Combustion air proving switch operating pressures Cutout 68 Pa To check this it is necessary to con...

Page 14: ...trol LC1 12 Thermal fan control FCR 13 Fuse in terminal assembly 14 Automatic burner control 15 Capillary for LC3 16 Relay for isolation transformer not GB 17 Igniter assembly 18 Multi functional gas...

Page 15: ...All 15 Venter assembly ES 30 fan house 36 79015 All 16 Fan Motor MAC 30 W6 01 26026 1520 All 17 Fan Motor Capacitor 3 mfd 400V 01 25598 03 MF 1515 1520 18 Fan Motor Capacitor 2 mfd 400V 01 25600 02MFD...

Page 16: ...essure i e screwed inwards to stop position and then sealed to prevent re adjustment N B Normally natural gas air heaters are supplied without air shutter assemblies If converting to from propane or b...

Page 17: ...urner control flame sensor electrode incorrectly located 11 4 Cool air during operation continuously when burner is off A Ensure specification is not for constant run fan CRF B Low gas pressure check...

Page 18: ...ause irritation to the respiratory tract As with any dust pre existing respiratory condition and lung diseases may be aggravated Prolonged exposure for the purposes envisaged pertaining to this Reznor...

Page 19: ...ined combustion heat exchanger The gas burner is controlled by a double gas valve via an automatic electronic burner control which is switched via external controls i e a room thermostat and or a time...

Page 20: ...Maintenance and service must only be carried out by competent persons Periods between service are dependent upon the local environment where the air heater is installed Regular inspection is recommend...

Page 21: ...OOGBEN 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 CO...

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